Short sprint – Natural talent

I met Rob at Bournemouth parkrun where he was always up the front threatening to break 18-minutes. He did it a few months later and started doing longer races the following year. He broke three hours in his second marathon.

As I got to know him he explained he’d watched the London Olympics and been inspired by Mo Farah’s 5,000 and 10,000m gold medal double and decided to take up running. I’m sure he was always fit and trim just not a committed runner. His first parkrun in late 2013 came in at 18:55 which is only a couple of seconds slower than my Personal Best set on the flats of Poole parkrun.

He’s a perfect example of natural talent.


We lost touch for a few years and I imagine he was working hard through the Covid crisis in his job as a GP. Six weeks ago he began running regularly again. Most of his runs have been somewhere around 8 minute miling, five times per week usually totalling 4-5 hours of training and covering 35-40 miles, last week was a big one of 45 miles. Once a week there’s usually some kind of workout. One week it was a fast-finishing long run, another was a 5-mile tempo at 6:50 pace, another mile repeats at 6:40 pace and another 200s at 6:00-6:20/mile. It’s a good mix of training but not been especially fast.


Yesterday his latest session popped up on my Strava – 5x1km with 3-mins rest. The splits were 3:41, 3:36, 3:37, 3:39, 3:33 – all around 5:50/mile. I hadn’t seen him go near that pace in any of the previous weeks. This is natural talent for distance running in action. Those splits are quicker than I could run one 800m all-out after training daily for four months, let alone run for five back-to-back 1K efforts.

I don’t say this out of envy, more amazement at how easy running is for people with natural talent at it. It’s taken me a long time to realise, I’m much better suited to the shorter distances which is why I decided to head back to middle-distance and the 800m. Even so I also know you have to build aerobically to improve at all distances. Runners like Rob have naturally high aerobic capacities.

The 5x1km with 3-mins rest used to be my go-to workout. When I was running my best at parkrun, I was beginning to get down to the numbers Rob is achieving there. That’s what happens when you train effectively, you can begin to challenge and maybe even surpass those with natural talent.

UPDATE: A couple of weeks after this post appeared, I logged on to Strava on the Sunday afternoon to find Rob had run a local 10K in 38-mins off nine weeks of training. He’d averaged 35 miles per week and 4-5 hours training. This only goes to underlines how natural talent can help you reach quick times when you start running.

MAF Training review – Part 3 The Good, The Bad and The Ugly

This post is the 3rd in a series of six. Other posts can be accessed from the Readables menu tab. So far, in part 1 I discussed how the real Maffetone Method is a holistic system for living but most people are only interested in the low heart-rate training formula. In part 2, I plodded through my experience of nearly six months’ worth of MAF low heart-rate training. Now I look at what’s right and wrong with this as a training system. Let’s get critiquing …

My own experience with MAF training was not very positive and within this post, I’ll explain why. But my aim is not solely to run MAF training down, I don’t see Maffetone as some kind of salesman selling snake oil or a “get quick rich” scheme – he knows about health. As a chiropractor of many years’ experience there are some good things to be learned from his book and there are certainly some athletes who have had success working with him. So let’s begin by seeing what we can gain by understanding his work.

What MAF can teach you

Benefit 1 – Understanding Aerobic and Anaerobic training is very useful

Maffetone explains training can be fuelled in two ways – aerobically and anaerobically. Aerobic uses oxygen and is very efficient, anaerobic works independently of oxygen which causes fuel to burn quicker and creates waste products that limit or fatigue you.

While anaerobic energy enables you to hit your top speeds – after all sprinting uses it extensively, Maffetone explains the detriments of training anaerobically. It increases the acidity of the body, requires more energy and can have major downsides in terms of poor sleep, appetite, weight among other things.

Understanding that too much anaerobic training at the expense of aerobic training is an important concept to grasp and is quantified these days in Stephen Seiler’s 80:20 rule. Perhaps because Seiler’s research only appeared recently, the older MAF low heart-rate training is proposing something closer to a 100:0 ratio.

Benefit 2 – Understand the Aerobic/Anaerobic threshold

Scientists will tell you there is no definable “Threshold” where you cut over from aerobic to anaerobic mechanism. Your exercise is always fuelled by a mixture of both. While this is technically true, the reality to you as a runner, is there are times when it’s clear you’re relying on one type more than the other. Stephen Seiler found research indicating most sub-elite runners are training anaerobically 70% of the time and need to bring this down to 20%.

Benefit 3 – The premise behind lower heart-rate training is right

I remember while running Bournemouth Bay Half Marathon in April 1996, commenting to a chap running alongside me that my heart-rate was averaging 177bpm and he replied “That sounds rather high”. We were only running at about eight and a half minute miles and I went on to finish in 1hr51. This is exactly the sort of heart-rate that people Maffetone met were always training at, and what MAF training is designed to address and bring down. Had I been successful in getting lower heart-rates, I would have seen my half marathon times begin to improve. That’s what MAF low heart-rate training is all about and why the premise is right.

At the other end of the scale, I’ve run at nine minute mile pace with my friend Simon, who is a 2hr34 marathoner and his heart-rate was only 110bpm. That’s the heart-rate of a man who has built his aerobic system and is burning fat.

Somewhere between these two extremes lies the aforementioned threshold between aerobic and anaerobic where you want to do much of your training. MAF suggests this occurs at a heart-rate that is calculated using your age but as I’ll explain later, I don’t. The premise is correct, very low heart-rates e.g. 110bpm are burning fat; heart-rates up in the 180s are burning sugar, or more correctly the glycogen and glucose that is sugar-based. Training somewhere between these two endpoints will lead to effective training.

Benefit 4 – Warm-ups are great

Maffetone devotes a section of the book to getting athletes to spend at least twelve minutes warming up. Genuine warm-ups are one of the most under-rated things in distance running training.

Most people start their runs quickly and then slow down to a pace which feels comfortable. The problem is that by starting fast they activate lots of anaerobic, sugar-burning muscle fibres which are then able to kick in every time they’re needed. This is one of the reason why people say they can’t run slowly. Those anaerobic muscle fibres are the thing that cause high heart-rates.

If you start a run slowly, you only use as many muscle fibres as you need to get the job done and can stay aerobic much more easily. This is reflected in lower heart-rates and focuses the training on building the aerobic system.

Benefit 5 – Low HR training can teach you the feel of Easy runs

Most coaches agree “running your easy runs too fast” is the number one mistake runners make and it’s not even limited to amateur athletes. Even elite athletes can do it and send themselves into a spiral of overtraining and underperformance.

If you pay attention to how easy your low heart-rate training runs feel then you can begin to understand just how easy they need to be. Remember easy is a feeling not a pace.

Benefit 6 – MAF Method would probably help with the “obesity crisis”

While MAF makes no claim on this I found when I built my aerobic base up (using my own method) I stopped being hungry. I still ate carbohydrates but I could return from an 18-mile early Sunday morning run at 8min/mile pace, eat a bagel and banana and then not get hungry until the afternoon. I actually found myself having to schedule meals to avoid missing them! My lifelong desire for cake, crisps and sweets which had been a large part of my diet naturally ebbed away. It returns whenever I start to train more anaerobically.

When you consider there’s a sizeable proportion of the population who don’t do regular exercise, and they get out of breath quickly when they do, it suggests their aerobic systems are underdeveloped. If their aerobic systems are underdeveloped then they’re going anaerobic in even the simplest activities and they’re burning up sugars from the muscles which need to be replaced. This leaves them hungry and prone to eating quick-fix sugary food to sate their appetite.

If people were to develop their aerobic system then they could go about their day-to-day activities without ever needing to dip into anaerobic energy at all. This would give all the benefits Maffetone details around not revving up the central nervous system and getting stressed. It would lead to better fat-burning for fuelling activities and avoid hunger.

My doubts about MAF training

I’m looking here almost exclusively at training to a heart-rate determined by the age-related formula. That’s the part that’s grabbing most people’s attention and they’re promoting as MAF training. (It occurs to me as I write this that I’ve been referring to it as “low heart-rate training” which of course it probably isn’t for anyone in their twenties but allow me that indulgence).

A) The science behind the formula is debateable at best

At its simplest the MAF formula is suggesting that as you get older, you get better at burning fat. But, to my knowledge, there is no known mechanism to suggest all 20-year-olds will burn fat at 160HR, 30-year-olds at 150HR, 40-year-olds at 140HR, 50-year-olds at 130HR and 60-year-olds at 120HR. Even with the small 5-10 beat adjustments these numbers have no scientific basis.

I’m inclined to believe he’s substituted age for experience.

Typically a 50-year-old runner with thirty-plus years of experience will have a bigger aerobic base than a 20-year-old runner and this is why training at lower heart-rates may be better for them. The latter’s youthfulness does give them the ability to engage high levels of muscle which push the heart-rate higher than an older runner who, with the natural decline from ageing, has lost some top-end speed.

While the human body declines with ageing, it is not so abrupt that a forty year-old needs to train at twenty beats lower than a twenty year old. At close to age fifty, I’m running aerobically at 150HR where the formula predicts I shouldn’t run quicker than 130HR.

B) Maffetone defines aerobic exercise as fat-burning and anaerobic as sugar-burning

While this is a good simplification, it’s nothing like the science. It’s accurate to say the anaerobic system is sugar-burning but the aerobic system is a mix of fats and sugars. It’s possible to build an Aerobic system that is burning high levels of sugars – this is a process called Aerobic Glycolysis (also known as Slow Glycolysis) and generally equates to your marathon pace.

In fairness to Maffetone he does hint that some of the aerobic system’s energy will come from sugar – for example on p.23 he shows Mike Pigg running at 127HR as getting 30% of his energy from sugar. It’s when Pigg gets to 153HR that he’s beginning to go 50-50 between fats and sugars.

It’s difficult to get the body to pure fat-burning other than by being careful about what you eat. This is why a significant part of the bigger Maffetone Method (not just low heart-rate training) has you looking at your nutrition and trying a two week no refined carbs regime. But if you change your diet to remove most of the sugars then you don’t need to train to a heart-rate as you only have fats available to burn.

C) Fat-burning is only required for long distance events

Building the aerobic system is important for all distance runners but fat-burning (remember the aerobic system can also be sugar-burning) is only useful for racing events lasting longer than 1 – 1½ hours. That means twenty mile races, marathons and ultras.

Fat-burning can be useful for half marathons but when your times are closer to the top end of the field then you’re unlikely to run out of glycogen stores. If you’re running middle-distance, parkruns or 10Ks fat-burning isn’t going to help your race times.

It can be useful to develop your fat-burning for training runs as this leaves your glycogen stores in tact for harder efforts. This is especially true for cyclists and triathletes who do many more hours of training and therefore find it easier to deplete their glycogen stores (i.e. bonk or “hit the wall”) and these athletes seem to have made up a significant portion of Maffetone’s clientele.

Basically, fat-burning is unnecessary for racing the shorter distances but building a strong aerobic system, mainly based on aerobic glycolysis, is important.

If you’re a young runner training to a high MAF-HR then you aren’t solely working on fat-burning, you’re working on improving aerobic glycolysis. The MAF training will work but not because you’re fat-burning as he suggests.

D) Older runners can struggle with low heart-rate training

When I was forty-two, I trained to a MAF-HR of 138bpm which usually meant running no faster than 9min/mile. As I’ll show in a future post, my current training has progressed by running at heart-rates in the high 140s and 150s which are far in excess of my MAF-HR.

To progress you have to train at the point just before you start to increase the use of anaerobic energy (reread Benefit #2). This has variously been called the Anaerobic Threshold, Aerobic Threshold and Lactate Threshold among other names. It doesn’t matter what it’s called but it does matter that you’re training at it if you want to get faster.

As she approached age thirty, Paula Radcliffe was setting the world record for the women’s marathon, an event which is run almost exclusively using aerobic energy. She was running at heart-rates in excess of 180 where a MAF-HR would have limited her to 160-165 bpm.  Imagine therefore how limiting it can be for the oldest runners expected to train at 120-130 heart-rates but won’t see any improvement if their threshold heart-rate is higher.

E) It’s tough on Fast-Twitch runners

You may have heard of fast-twitch and slow-twitch muscle which are respectively good for speed and endurance. While slow-twitch is perfect for aerobic exercise, fast-twitch naturally works anaerobically and requires extensive development to improve aerobically. Even then it is less efficient than slow-twitch muscle and can easily switch back to anaerobic mechanism. This is the reason why after a weekend of sprints and drills, my own MAF training went backwards.

Of course, this is why heavily fast-twitch runners are better suited to sprints and shorter distance events. But even a mile world record holder like Peter Snell could run a marathon in under 2hr40 despite sitting down at the side of the road and taking a rest break after the first twenty miles! It’s not impossible to build a good aerobic base with fast-twitch muscle just harder and it’ll usually incur higher heart-rates which makes the MAF age-based formula less appropriate.

Naturally fast-twitch runners will retain FT muscle longer into old age so when you combine this with the previous point (D) you can see why I struggled with MAF training and why others may too.

Note this is why MAF training will likely work very well for slow-twitch runners who naturally run with low heart-rates and actually struggle to get their heart-rates up. They can push harder on all their runs without exceeding MAF-HR (unless they’re Paula Radcliffe) without going particularly anaerobic. But then they don’t particularly need a heart-rate monitor to hold them back.

F) Female runners may struggle with it

The female runners whose training I’ve observed tend to run with higher heart-rates and certainly this was the case for Paula Radcliffe (see last paragraph of point D).

In his book “Better Training for Distance Runners”, Peter Coe states that women tend to have higher heart-rates because their hearts are physiologically smaller and therefore pump less blood with each stroke which is compensated for by beating quicker.

Maffetone makes no distinction in his system for male or female runners or those who have higher maximum heart-rates. He’s very clear that maximum heart-rate don’t matter.

G) MAF training is not a system for training a beginner

It’s likely that if you try to run below a MAF-HR as a beginner runner you will quickly be exceeding it at all but the slowest pace. This could especially be the case if any of the previous three points apply.

At age 47, I got injured and after a three month layoff I resumed training. In my first week I was barely able to run ten minutes per mile without finishing runs at heart-rates in the 160s. I generally took my runs as easy as I could and my parkrun time was under twenty-four minutes after a month but I was rarely running below my MAF-HR. If I had stuck to a MAF-HR, there’s no way I’d have been at that level after a month and running sub-1hr40 half marathons six months later.

H) MAF training says nothing about volumes of training

While the book focuses on the intensity of your runs, it doesn’t give any concrete information about how much training to do; only in broad terms about “less is more”.

I dived in and did too much relative to my ability with 8-10 hours each week but I’d read elsewhere that low heart-training allows you to do as much you want. It turns out I simply didn’t need to be doing that much training.

How much you should do depend on what your body can take. When you’re beginning, you only need relatively short runs to create a training effect. A couple of hours spread out through the week will have a big effect. I currently train from 5-7 hours each week and get decent benefits from it. My friend Simon, the 2hr34 marathoner trains closer to 10 hours each week.

I) MAF training is not a speed system, it is about creating speed endurance

Although MAF training promises to get you faster, more often than not it’s helping you to race longer distances faster. It’s a subtle distinction. What I mean is that while you might be able to run one mile all-out in eight minutes, MAF training will simply enable you to build the endurance to do a parkrun or 10K at this pace but you won’t necessarily be able to run a single mile faster. That will only happen when you do some speed training. If you only ever do low heart-rate training, you’re eventually going to come up against a brick wall of no improvement.

This is why my first three months of Maffetone training saw no improvement in their average pace but why after I did a parkrun, it picked up – the parkrun acted as a speed session because I went all-out at it and my natural fast-twitch muscle kicked in.

If you never work on your speed side you’re never going to reach your potential. Maffetone does allow for some anaerobic interval workouts but you’ll only know this if you read the book. There’s not much details on these intervals and speed workouts or how they relate to different race distances.

Real world problems with MAF training

I’ve observed many runners who get enthusiastic about MAF low heart-rate training but I struggle to think of anyone who has benefited from its long term possibilities. This isn’t necessarily because MAF training is flawed but because the runners following it, don’t really follow it. Here are the common issues I see.

i) Runners don’t follow MAF training long enough to see the benefits

The aim of the MAF training is to build the aerobic system and this happens by the body improving the aerobic capabilities of slow and fast-twitch muscle. Biologically, muscle fibres start to grow more mitochondria which improve the use of oxygen; meanwhile the capillary network that supplies oxygen from the arteries to the muscle fibres becomes more extensive. It is these changes that allow cells to extract and use more oxygen from each beat of the heart hence why it then needs to beat less frequently to deliver the same oxygen levels.

The process for growing new mitochondria and capillaries takes six weeks so this is the minimum timeframe you should be focused on MAF training if you’re to get its benefits. But it’s not necessarily a one-off hit as you’ll usually be growing these on a rolling basis. So while the training you do in week 3 is reinforcing the growth that started a few weeks ago, it is also initiating further growth that will be realised in week 9. This is why the elites can stay in a base period for months.

However if you start racing or doing heavy speed workouts during your MAF training period, which is what I tend to have seen, the full benefits may not be realised. Often there’ll be a small improvement but not as good as they might have been had they committed. I’ve even seen suggestion that capillary beds can be destroyed if too much speedwork is done but I’m not sure how true this is.

The people I see raving about MAF training on Youtube, the web or Strava never seem to follow the system for a period of months like I did. It’s a fad for them. Invariably they follow it for some of their runs each week but then throw in a race or workout regularly. This is contrary to the idea of MAF training which, I believe, is supposed to be a continuous process.

They might as well go follow a marathon training plan and get the same benefits from high mileage and minimal speedwork

ii) Runners don’t actually stay below the calculated heart-rate

When I MAF trained I was dedicated to staying below the MAF-HR. I don’t see the same zealousness from other runners. Most of those I’ve seen trying it are capable of running decent times e.g. half-marathon in 1hr25 but to stay below their MAF-HR might require them to go back to nine minute miling aka “running too slow”. So they tend to slow their runs down to about eight minute miles and be content if their heart-rate averages the MAF-HR. Occasionally they will stop, walk or go up hills slowly but mostly they jog along doing an approximation of MAF training that doesn’t bear close scrutiny.

iii) Runners don’t use a decent heart-rate monitor

Until a decade ago all heart-rate monitors were chest straps which were usually accurate. You could get inaccuracy at the start of runs which was usually solved by giving it a lick before putting it on but otherwise they tended to be accurate.

The new generation of wrist-based heart-rate monitors are highly unreliable in their accuracy despite the manufacturers’ claims and any inaccuracy is usually put on the runner for not wearing the watch correctly. I’ve seen countless examples where runners have heart-rates in the 180s while jogging and then when they start doing fast intervals the heart-rate drops to the 140s. That’s a physical impossibility. The wrist-based monitors often lock onto a runner’s cadence but there may be other reasons behind their inaccuracy.

Whatever the reason I would only trust a chest strap heart-rate monitor from the current technology available. It may improve and there may be some which are already reliable so if you choose to go wrist-based, test it before you rely on it. And do that test under a variety of conditions, not just sitting on your sofa or walking to the local shop.

iv) Runners don’t do the warm-up

Runners who try MAF training almost always start their runs fast, only slowing down after a minute as the anaerobic boost runs out and they start to puff. The problem is they’ve then engaged more muscle than they can run aerobically with, this makes it much harder to stay under MAF-HR.

To compensate for increased anaerobic energy usage, the body invokes lactic clearance therefore that’s what they’re training rather than signalling to the body a need to adapt aerobically. Once lactate clearance kicks in, it’s possible to be running anaerobically and still see lower heart-rates.

A secondary issue of starting runs without a warm-up is heart-rate monitors can read inaccurately at the beginning of runs and this causes big headaches if the heart-rate monitor is constantly beeping say you’re running too fast. It often takes 8-10 minutes to settle down and has disrupted your rhythm if you’re trying to stay below a certain heart-rate. I used to worry on my MAF runs if my heart-rate was up in the 140s early on not knowing whether it was me running too fast or the monitor reading wrong.

As I explained earlier, Maffetone recommends doing a fifteen minute warm-up which helps to avoid these issues. Many of the MAF training advocates don’t have the patience or knowledge to do this.

The BIG flaw to MAF training

Heart-rate monitors don’t show the levels of lactate in the blood.

As I wrote back in Point D (and will reproduce here to save you scrolling back up): To progress you have to train at the point just before you start to increase the use of anaerobic energy. This has variously been called the Anaerobic Threshold, Aerobic Threshold and Lactate Threshold among other names. It doesn’t matter what it’s called but it does matter that you’re training at it if you want to get faster.

Most people understand the principle of Threshold training so I won’t go into depth about it. What I will point out is while there are various ways of identifying what the heart-rate at threshold is, only Maffetone suggests it is related to age. And quite simply – it isn’t.

It can vary drastically depending on your training. I have seen myself running at Threshold heart-rates of 127bpm after doing excessive amounts of speedwork yet two months later it’s up at 150bpm. There was no relationship between my age and Threshold heart-rate in those numbers and there won’t be in anyone else – other than by coincidence.

In well-trained runners the Threshold heart-rate is more consistent. Mine is usually somewhere around 152-153bpm when I’m running well. Coach Peter Coe said lab testing shows it’s usually around 150bpm in male runners but higher in women. Mike Pigg, who I mentioned earlier appears to be around 153bpm. I would be very careful about using a generic value like this to specifically define the Threshold but with experience you may be able to define where your own starts.


There are very few, if any, elite runners these days who train to heart-rate. If they do it’s usually to ensure their recovery runs are slow enough. If they are doing workouts by heart-rate, it’s likely they’ve derived their numbers either by taking lactate samples or by using heart-rates experienced in races. An age-based formula won’t identify it.

In my opinion, if you really want to train to heart-rate, you’re better off going with a catch-all number of 150 (or 160-170 for a woman) and see how your body reacts to it. I would aim to run recovery runs at least fifteen beats lower than this but not get too tied into staying exactly below or on the numbers. I’d look to do a warm-up that takes at least ten minutes to get close to my target heart-rate but I’d let my body guide me on how it wants to run. If I began to go over the target heart-rate then I wouldn’t be too concerned by a few beats but I would look to ease off and get back under target. I would aim to run the 150HR rate efforts no more than three times per week with the low heart-rate recovery runs on the other days.

That’s if I was going to train to heart-rate which I don’t.

Summing up MAF training

The idea of training to build an aerobic base is a good one for anyone involved in endurance sports. Whether this needs to be fat-burning or sugar-burning depends on the distance(s) you intend to race.

But the fundamental concept of using an age-related formula to decide on what heart-rate to train at is high flawed. There is no proven mechanism that reliably explains why a 40-year-old runner should train twenty beats lower than a 20-year-old runner.

Remember Phil Maffetone was a health practitioner who treated all sorts of endurance athletes so being a running coach was never his speciality. What the MAF method does well is to (re)build a healthy aerobic system. This allows runners to peak their training with anaerobic training for better race times, but MAF training itself is not a system for building top end speed. You will only go as fast in races as your top end speed allows. If you spend months creating a super-efficient aerobic system, it opens up the space to access speed at the top. If you never do speedwork you won’t be any faster over short distances but you will improve over longer ones.

While many of his clients found great success from following his methods, the success stories he details are of already-elite athletes in their respective long distance events. They were already fast and well-developed, MAF training just took them the final steps of their journey. For example, Mark Allen was placing in the top 5 of the Hawaii Ironman before he met Maffetone. He became a six-time champion when he improved his aerobic system because fat-burning is crucial in an event lasting over eight hours.

What Maffetone showed these athletes is how to build the aerobic system which is the foundation of endurance. That is half of running. The other half is the anaerobic system which helps create speed. Following the Maffetone approach as a complete running system is like listening to researchers who tell you that you can get faster by building VO2max through High Intensity Interval Training (HIIT). It’s only half the job. Good running coaches already understand how to combine these two halves of aerobic and anaerobic training to create endurance and speed to maximise the potential of a runner. It’s often self-coached runners who have fixated on one half or the other who profit when they introduce the other type of training.

If you go through Maffetone’s Big Book you will find all the athletes he gives specific details for are elite (i.e. they already have top end speed) and they are under thirty which gives them a higher MAF-HR to work with. It’s for this reason I repeat my belief that the Maffetone formula is a blunt instrument which could as effectively be replaced by a catch-all heart-rate limit of 150 beats per minute for male runners and perhaps 10-20 beats higher for women. The specific value you use would likely need to be individualised and decided upon once you’ve got used to your own typical values.

There are better ways to train than MAF training to be the best runner you can. These involve mixing periods of short intervals, long intervals, continuous runs, long runs and easy runs at a variety of paces to develop both speed and endurance.


Update – since publishing this, I wrote a further post proving my point about there being better ways to train. In it, I detail how I trained regularly breaking my proposed MAF-HR, often training to one the equivalent of someone twenty years younger than me yet still made progress. Read Part 4 – The myth of MAF here.

After pondering what encourages runners to give MAF training a try, I wrote Part 5 – Why MAF why, which tries to explain their motivations. If you’re considering giving it a go maybe you’ll recognise yourself in some of the descriptions!

Recently I published Part 6 – When you need MAF which looks at the circumstances that might indicate a block of endurance training focused on lower heart-rates might be useful. But, as I point out in Part 4, low doesn’t mean age-related.

Short sprint – Do it for yourself

When I was twenty-two the gym I went to held monthly challenges. These rotated around the cardio equipment with one month being who could run the most miles, the next being to climb the highest on the versa climber, the the stationary bike, the stepper and so on. Typically the same people won the challenges because they were willing to get in the gym every day and train. I’m certain there was one woman who turned up twice a day to ensure she won the stepper challenge. I often didn’t participate because I wasn’t committed enough and I wasn’t into cardio for cardio’s sake.

The October challenge was to row as far as you could over the month. As I enjoyed the rowing machine and felt I was quite good on it, I gave the challenge a go. This was in the days before the Concept2 machine and there was a blocky graphic display showing your avatar rowing but the machines were technical enough to allow you to go head-to-head with someone on the other machine. I’d done this with Gary, who I played volleyball with, and there was something of a rivalry between us; so I went at the challenge full pelt; I wasn’t going to let him beat me. Fortunately the challenge rules limited you to fifteen minutes rowing each day on the six days of the week the gym was open, so it couldn’t get out of hand.

I suppose the aim of the challenges was to give people a reason or motivation to come to the gym. It was early gamification of the sort you see on Strava every month now. Badges for running 5K, 10K, a half marathon, cycling, swimming or whatever every month. These Strava challenges are participatory and while there is a leaderboard it’s about doing it for yourself rather than beating other people.

But back in the day I was interested in beating Gary, if not winning the challenge, so I made sure of going to the gym every day to max out my rowing allowance. All-out, hard effort for fifteen minutes to log as much distance as I could in my quest to be the best and beat Gary. I’d probably then go off and lift some weights and play volleyball or basketball.

I lasted two weeks before I fell sick. It was so bad I went home from work on Thursday lunchtime, took the Friday off work and stayed in bed all weekend to recover. I was back at work on the Monday but I’d learned a lesson about overdoing things. I often say I’m never ill and the Friday was the only day I took off in eight years working there.


The real consequences of that lesson came a couple of weeks later. November rolled around and the gym staff were looking for people to sign up for the next challenge. I declined. I realised I’d made myself ill from a meaningless challenge. My ego took part in the challenges because I wanted to be part of the gym but more so because I wanted to be at, or near, the top of the leaderboard. There was no reward, only bragging rights to be a big fish in a little pond. More so I realised the challenge was the gym staff’s thing not mine. They were signing up people to try and keep people motivated and have as many names as possible taking part to make it an interesting competition but so what? Those were their goals not mine. My goals lay in a different place, in particular on the volleyball court and staying fit and healthy enough to keep training, playing and improving at that.

I never signed up for another challenge again.

MAF Training review – Part 2 My Experience

This post is the 2nd in a series of six. Other posts can be accessed from the Readables menu tab.

Today I continue my in-depth review of MAF training with a look back at how it went for me in the summer of 2014. In part 1 of this series, I explained most people promote the Maffetone Method as low heart-training, but it’s actually a holistic system including re-evaluating your diet by taking a two week break from refined carbohydrates. I too was in the heretic camp and went with the low heart-rate training only. I didn’t change my diet or try any of the other things Dr Phil Maffetone recommends, partly because if I gave up carbs I wouldn’t have anything left to eat. I read a copy of his book while I was doing the training and was trying to make sense of it as I was going along.


This wasn’t my first experience of low heart-rate training, that occurred over twenty-five years ago as I recounted in this post about John Douillard’s Body, Mind and Sport book. Using “Darth Vader” diaphragmatic nose-breathing, while running to a sub-130 heart-rate, I saw no success at getting faster or achieving the effortless flow state he promised but I kept trying. It was only when I got good at running through pace-based training that I began to see the low heart-rates promised by Douillard. But the idea of low heart-rate training stuck with me and somehow I read about Maffetone training and when the opportunity arose I decided to give it a dedicated shot.

My first two years of committed running (2011-13) saw me recording personal bests at all distances raced but something was missing which was stopping me from hitting the heights I hoped for. I didn’t quite know what it was but the combination of The Redgrave Paradox, a return from a winter virus and wanting to try new things led me to give MAF training a try.

The winter virus knocked my training back for two months and while, I’d missed the half marathon I was aiming for, I was still running capable of running twenty-one minutes at parkrun. With the virus over I began to bulk up training with four mile runs in the morning and another thirty minutes of barefoot running in the evening.

In early May I clocked forty-three minutes at Lymington 10K. A week later I jogged round Bournemouth parkrun in 25:43 with heart-rate averaging 141bpm but hitting a max of 155bpm. I’m not sure why but, that evening I decided to try MAF training. I was 42-years-old, the formula gave me 138bpm and in the past I’d always found my running felt very comfortable at this level. When I was building my first aerobic base three years earlier it was where my heart-rate naturally seemed to fall on easy runs.

Beginnings – May and June

I followed the MAF low HR regime religiously. The first Sunday long run was hellish because I picked a hilly route. I must have stopped and walked thirty times to keep my heart-rate down on the hills but I managed the twelve miles without going over the limit. It was slow at 10:24/mile with the fastest mile being 9:40 and the long uphill into Broadstone taking over eleven minutes. The following week was even slower but I stuck with it. Like all spiritual adepts there were times where I unintentionally fell off the pew and I did have one deliberation exception; at the end of some runs I would do a 150m sprint back to my house. It sent my heart-rate soaring and those moments are not included in any of the stats that follow.

In the first six weeks of training I ran, on average, for eight hours and fifteen minutes covering fifty-five miles yet only spending 1min35 above my MAF-HR of 138. I’m doubtful it’s possible to do any better than this. By the end of June I’d accumulated fifty hours of training but less than ten minutes of it exceeded MAF-HR.

Miles525647615656328
Total time8hr 18min8hr 44min7hr 18min9hr 23min8hr 48min8hr 36min49hr 34min
Above MAF-HR1min071min013min272min193 secs1min289min25

Most days I was running morning and evening yet what’s incredible is, while I was accumulating all this, I still took Fridays off as a rest day. I’m sure that helped parkrun to feel good on a Saturday morning. Monday to Thursday mornings were a shoed run with a barefoot run round a local field in the evening. At weekends, the evening run was shoed. Here’s a sample week from this period.

Time runMileageAvg paceTime above
MAF-HR
Monday00:41:414.5Morning run9:22 / mile
00:30:383.6Evening (barefoot)8:31 / mile
Tuesday00:41:064.5Morning run9:14 / mile7 seconds
00:31:033.6Evening (barefoot)8:38 / mile
Wednesday00:41:354.5Morning run9:21 / mile
00:30:273.6Evening (barefoot)8:27 / mile
Thursday00:43:104.5Morning run9:42 / mile8 seconds
00:30:523.6Evening (barefoot)8:34 / mile
Friday
 – 
Saturday00:31:154.5Bournemouth parkrun9:42 / mile11 seconds
00:34:393.6Evening recovery9:36 / mile
Sunday01:59:5111.7Morning long run10:16 / mile35 seconds
00:34:283.5Evening recovery9:50 / mile

Going further – July into August

In July I decided to change tack. I was still going to train to MAF-HR but the arrangement of my week would be different. The barefoot running had to come to an end. It was a long, hot summer and through June the ground began to harden up. It eventually became like running on concrete and my body simply couldn’t handle it. One thing I’ve haven’t yet been able to sort out in my running is not being a loud and noisy runner who hammers their feet into the ground. I know one guy who can run half marathons comfortably in a pair of Vibram Five Fingers on tarmac but I can’t do it for more than a few yards.

Part of my experimental mindset also wanted to see what would happen if I ran longer distances so rather than splitting my training day into two runs, I usually only ran once but much further.

Below is a training week which totalled 67+ miles and 10+ hours while only exceeding my MAF-HR for nine minutes. This particular week, my Bournemouth parkrun time scraped under twenty-seven minutes compared to the thirty-one minutes when I started. This was as fast as it ever got during MAF-HR training and it stabilised in the twenty-seven minute range in the following weeks.

Time runMileageAvg paceTime above
MAF-HR
Monday01:15:478.1Daily run9:18 / mile1min 23secs
Tuesday01:50:4411.7Daily run9:30 / mile4min 15secs
Wednesday01:14:228.2Daily run9:07 / mile12 seconds
Thursday01:52:0911.7Morning run9:37 / mile
00:36:374Evening recovery9:09 / mile12 seconds
Friday 
Saturday00:26:525.7Bournemouth parkrun8:39 / mile2min 15secs
00:32:383.8Evening recovery8:35 / mile
Sunday02:11:5914.1Long run9:22 / mile44secs

Many people who try low-HR training say they can’t run slowly. Part of it is they go off too fast but sometimes it’s their ego complaining. I never cared if people saw me running slowly. If anyone asked why I was jogging round at the back of parkrun I’d patiently explain the MAF training system with its focus on improving fat-burning over sugar-burning and then get on with doing my thing.

One of the reasons I stayed motivated was I knew the general approach of the elites is to do a block of ten weeks building their base. Sometimes they do this for longer but either way, the idea of replicating this helped me to overcome any doubt I was feeling when results weren’t showing up plus I had a reward in store to delay the gratification. When I’d completed three months of MAF training, I’d go to Poole parkrun and run all-out.

Even though I was completing Bournemouth parkrun 3-4 minutes faster, over those three months there was barely any improvement to my average weekly pace – it was always a few seconds faster or slower than 9:15/mile. The graph below shows this and the one notably slow week was when I totalled 77+ miles!

The reading I’d done suggested it would take three months for the aerobic base to be built. Not knowing better and not seeing any gradual improvement, I took it to be a timeframe where new speed or pace would appear at the end of it.

It therefore came as vindication when I ran Poole parkrun in 19:52 and I was very pleased to break twenty minutes. I’d been running twenty-one minutes before I started and I’d knocked a minute off with training. I now had the encouragement to continue on and see where this system could take me.

Peak experience – August into September

In the week following the parkrun my average pace improved to 8:51/mile – almost thirty seconds quicker. And it stayed there for the next three weeks. I thought I was finally beginning to see the promised gains and even put in occasional barefoot runs around the field again. These were proving quite efficient and I could run nine minutes with heart-rate averaging 115bpm. At my best I ran a sub-25 5K barefoot round the field without exceeding MAF-HR.

My Sunday long runs to Pamphill and back, which had originally been over ten minute miles, were now breaking nine minutes and I was even seeing a sub-8 mile on the downhill into Wimborne. The MAF training all seemed like it was going in the right direction.

Part of my year’s plan had been to do my UK Athletics coaching courses and I’d become a Leader in Running Fitness in May. The next level up, the Coach in Running Fitness course began with a full weekend in Exeter and meant I wasn’t going to be able to do my usual MAF training runs but I wasn’t too concerned as I figured a short rest would help. Over the two days we did many short practical sessions, both coaching and being coached by our partners but nothing extensive. We weren’t sent on one hour runs or anything, just technical drills, jogs and sprints and while my heart-rate was higher on the Sunday morning I thought nothing of it. I couldn’t get out of doing the practicals but I thought it would also be a test of MAF training’s effectiveness, no runner should have to be so perfect in their training if a system works.

Collapse – September into October

On the Monday morning I woke up … eventually. I’d slept for twelve hours, 10pm – 10am, and still felt exhausted. I played it safe and took the day off from running and resumed the next day. While the first couple of miles were ok, by the end of the run I was slowing my pace drastically to avoid breaking the MAF-HR.

Over a weekend I’d gone from being able to run over eight miles in 1hr10 to barely more than seven. In pace terms it had dropped by a minute per mile (8:38 to 9:40/mile pace). It clawed back slightly over the next four weeks but never back to where it had been. It was still an improvement over where it had been in June and July but not at the late August peak. I was still putting in the effort with weeks of 65, 63, 59 and 58 miles but the pace was often the wrong side of 9min/miles.

Enough – October into November and December

I was beginning to lose faith and needed to know where I was at, so in mid-October I went back to Poole parkrun. I’d run 19:52 nine weeks earlier but now I could only achieve 20:39. It had all fallen apart with one weekend of non-MAF training. I felt disheartened and ready to give up. I’d never truly seen the improvement that seems to be promised by low heart-rate training and I couldn’t see myself shuffling through months of my watch beeping at me.

I was scrabbling around for explanations and diving back into the Maffetone book I began to wonder if the increased heart-rates I was seeing were due to overtraining. It can be one of the signs and MAF’s recommendation for overtraining is to cut your training volume back. So this is what I did. All that happened was it became increasingly harder to run to MAF-HR off less and less training.

I was left wondering whether the previous winter’s virus had flared up again even though I otherwise felt fine. I took more and more rest days logging only 55-60 miles in each of November and December; mileages which had once been my weekly exercise had now become monthly. I was done with MAF training. I’d started it in May, shuffled around for months and not got anywhere closer to the best running I’d done in the preceding years. I felt like I was always waiting for it to come to fruition and it never did.

Looking back

Within this post, I’ve tried to sum up my training for people to understand what I experienced while avoiding getting bogged down in the details. Even now I feel it’s quite stat-heavy. Every run I did that summer is recorded in Garmin and on spreadsheets. So many of the runs are virtually identical in their splits, heart-rates and times that there’s little to be gained from reproducing them, a summation seems enough.

I’m split between saying MAF-training worked and saying it didn’t. Unfortunately I didn’t have an outright benchmark to compare between when I started training and the all-out August parkrun that clocked in at 19:52. I think it was an improvement but I’d been capable of running this sort of time in February before I got hit by a virus.


The first question mark is when you look at my average weekly pace over those first three months it doesn’t change. It’s always somewhere around 9:15/mile. It’s hard to make a perfect comparison because I changed routes from the beginning of July but whenever the opening miles were along the same paths, the splits were very similar. It suggests I wasn’t getting any improvement from the MAF training.

It was after the 19:52 Poole parkrun that things picked up. The pace of my Sunday runs were notably quicker than they’d been in May when I was trudging up hills taking over eleven minutes for a mile.

The trouble is the fast parkrun seems to have been the trigger for this improvement and that isn’t part of the MAF training. The whole theory of MAF training is that you will get quicker simply by running below MAF-HR. [It should be pointed out the book allows you to add in some Anaerobic Intervals from time to time, but if you follow what the Youtubers say it’s simply about low HR training. Once you start mixing aerobic and anaerobic work you’re heading back towards conventional training methods.]


The second big question mark about my MAF training is what happened after my run coaching course. I went backwards and never reached the same heights of the 19:52 parkrun again. If you look at it over the whole five months of training there was no improvement – I was capable of running 21-mins at parkrun before, I ran 20:39 after.


I believe I adhered to MAF training as well as anyone could or should be expected to. I logged hundreds of miles in over 200 hours of training at slow paces. In almost six months I only totalled 4½ hours above a heart-rate of 138bpm and that includes two 20-minute parkruns where it was averaging high 160s. The graph below shows the time running with the yellow blocks representing the small percentage of time spent in excess of my MAF-HR. You can barely see any yellow in the first six weeks which reflects how well I was following the system.

What my stats don’t include are the occasional 30-second sprints I did at the end of training runs two or three times each week, or what occurred on my run coaching course. If this were a true scientific experiment they would be question marks against the validity of what I did, but with over 98% of my training as MAF expects I don’t believe they should be the difference maker to its effectiveness.

The biggest disappointment of having followed the MAF training system for all those months is that any gains I did make, didn’t last. I ran 1,345 miles to try and build the fat-burning system as Phil Maffetone suggests. By the time I ran parkrun on Christmas Day I was only able to achieve 21:45 with notably higher heart-rates than they’d been in August. Where I’d averaged 165 then, now I averaged 169. Where the maximum had been 174, now it was 181. In a matter of months, I’d gotten slower and my fat-burning had got worse. While I trained less in November and December, I’d have hoped the conditioning would last for longer.

But perhaps more importantly, whether I think my experiment proved MAF training works or not, here’s how I felt about it.

My overriding memory is of how much I grew to hate it,

I grew to dread the watch beeping at me to slow down.

Many hours were spent each week trudging along at paces close to 10min/mile. There was never any chance to break out and run fast, I was always trudging along barely lifting my knees or opening my stride. I was always waiting for the watch to beep. Not just a single tone but an irritating diddle-iddle-eee like a demented doorbell from the Seventies.

I enjoyed the evening runs much more but that was more down to the novelty of running barefoot laps round a field and feeling the ground fly beneath my feet. The lack of footwear reduced the energy-cost of running and my heart-rate stayed lower so I got to run faster.

But too many hours were spent trudging along in the mornings; automatically slowing down to trudge up hills; forever aware and vigilant for the beep of the watch ordering me to slow down.

While I was highly motivated to give MAF training a good shot, grasping for any sign of improvement, the slow pace meant my legs barely got out of first gear and I was repeatedly trashing the same muscles day after day. Running so many miles left them feeling hollow and lacking spring, and the lack of variety just made it unenjoyable. The only redeeming factor was that this all took place in the warm of the summer months. I’m doubtful I could have stuck with it through a cold, windy, rainy winter.

The one bright spot was the 19:52 parkrun at Poole and that was it. I believe you need more intrinsic feedback and enjoyment when you’re training hard to stay motivated through the tough times. If, for some reason, you aren’t getting that feedback then this is where having a good coach helps out. They will reassure you that you’re on track to achieve what you’re aiming for. They find ways to say “Don’t worry, it’s going to work out”, to point out any successes you haven’t noticed, or explain why the slump you’re experiencing is normal. In this respect, my years of coaching enabled me to self-coach and keep giving positive messages and reinforcement.


Knowing how my running improved in the years after, I realise I’d never use MAF training again. Its monotony and the age-related MAF-HR meant it didn’t work for me.  Becoming a slave to the beep of a watch and heart-rate monitor sucked the enthusiasm out of me.

I know, as I can show to anyone I coach, there are better ways to train. Endurance miles are an important part of the equation but not the only one. It’s possible to mix up bouts of fast and slow running in ways that allow you to get the best out of yourself and see intermediate improvement while the training comes together.

In part 3, I’ll talk further about what I believe the pros and cons of the MAF training system are. When it can work, what you can learn from it and what the issues are.

Short sprint – Sleep

I noticed in recent years I was beginning to sleep less. There were some nights where I found myself waking at 3-4am and having to use the toilet. Occasionally I’d be awake for an hour or two only dropping back off at 5am. Shortened sleep is something older people often find happening and apparently comes with ageing. At least that’s the received wisdom but since I recommenced training hard with more sprints and workouts, yet doing no more mileage, I’ve started sleeping very deeply again.

Growing up I was always a deep sleeper. Some of that was because I wanted to stay up late as a teenager; I was often up until gone midnight, then struggling to get out of bed the next morning. Waking me up for school was a nightmare for my parents and I would often go in still half asleep. When I began working, I still stayed up late and slept deeply but always got up to be on time for work. I’d make up for lack of sleep at the weekends, often sleeping in until almost midday, sometimes a nap in the evenings.


For a short period I kept a sleep diary. Or rather compiled a list of how much sleep I got. There’s probably an app you can get to do this automatically on your phone now. But, back in the late 1990s, I was bored in my job so one small way I passed the time was to log an estimate of how much sleep I’d got the previous night.

What fascinated me was that after collecting three months’ data (yes I really was bored enough to do it for three months) my average sleep for the first month came in at 7hr45, the second month it was 7hr50 and the third it was 7hr40. My body knew what it needed and that was just under eight hours sleep each night. In the week I was working 8-6; so long sleep-ins at the weekend were the adjustment to get me back on track.

It’s apparent to me that the body is doing a lot of rebuilding and healing work between training sessions. I was all-out when I played sport in my twenties. I pushed every session to the limit to the point where it would actually leave me very moody and antisocial and on the verge of depression. The body’s chemistry is in fine balance and sleep is one of the ways it resets itself. The long hours of sleep were a necessity rather than a luxury.


I remained a deep sleeper until a few years ago. I reckon I started sleeping lighter when I figured out how to train aerobically. Even now, despite sleeping deeply because of the 800m training, when I run back-to-back recovery days on Friday and Saturday, I need less sleep on the second night. Somewhere within this is a lesson about the interaction of hard training, speed, miles and sleep. It seems logical to me that if you’re not sleeping deeply the body hasn’t got much to repair in which case you’re not training to get faster.

MAF Training review – Part 1 An Overview

This post is the first in a series of six which originally began as a trilogy – other posts can be accessed from the Readables menu tab.

Occasionally I come across runners on Strava or Youtube waxing lyrically about MAF training. If you’ve never heard of it, it’s a heartrate-based formula created by Phil Maffetone that focuses on building the aerobic system. As well as being a shortening of his name, he says MAF stands for Maximum Aerobic Function.

Phil Maffetone is a retired chiropractor who treated athletes from the 1970s onwards including triathletes like Mark Allen, runners like Marianne Dickerson and ultra-runner Stu Mittelman. Chiropractic is described on Wikipedia as being “concerned with the diagnosis and treatment of mechanical disorders of the musculoskeletal system” and this is the basis of the Maffetone Method.

While there are many articles around the web and Maffetone has an extensive website promoting his methods, the information in this series of articles is mainly drawn from his “The Big Book of Endurance Training and Racing”. It’s an attractive 500-page tome going into detail about training, its effects on human physiology and giving many examples of athletes he helped. It manages to avoid being too technical even though there is a good dose of biology thrown in. If you want insight into the human body and keeping it healthy then it’s worth a read.

Low heart-training with MAF

The core of the MAF Method, as others promote it, is low heart-rate training. At its simplest the MAF heart-rate is calculated by subtracting your age from 180 to give a maximum value that shouldn’t be exceeded. It’s not an average heart-rate to run at, it’s the heart-rate you aim to never go above. If you’re thirty years old, your MAF-HR is 180 – 30 = 150 and you try to never go over 150HR on your runs.

Depending on your recent health and training you tweak your MAF-HR by adding on, or subtracting, a few beats. For example, if you’ve been training for two years without injury or illness you can add on five beats to raise the MAF-HR you’ll be working to.

There’s a couple of exceptions anyone under sixteen should use MAF-HR of 165bpm, anyone over sixty-five may add ten beats if they’re in good health. This means almost everybody training to a MAF-HR is doing so between 125-165bpm.

The MAF test

For those who really get into MAF training there is the MAF test. Once every month, you run five miles at your MAF-HR and record the mile splits. The splits will gradually get slower during the run, but over the months you should see the overall numbers improving and your runs getting faster as the following example shows:

AprilMayJuneJuly
Mile 18:218:117:577:44
Mile 28:278:188:057:52
Mile 38:388:268:107:59
Mile 48:448:338:178:09
Mile 58:498:398:248:15
Example results from a series of MAF tests (p. 82)

Ideally you go into each test rested, warm-up prior to the test miles and run the same course under similar conditions every time to keep the comparison valid. Of course with seasonal variations, results can be affected by cold, heat, humidity and high winds but as long as you allow for this, you should see a year-on-year improvement.

The real MAF Method

Training to MAF-HR is the appealing Train to a low heart-rate and your running will get faster headline of MAF training. To the Youtuber and Strava disciples promoting MAF training, this is all it entails to get clicks and views.

In reality this is a cherry-picked aspect of Maffetone’s training philosophy which has the following four key points:

  1. Build a great aerobic base
  2. Eat well
  3. Reduce stress
  4. Improve brain function

As a chiropractor, his focus is on healing people and helping them to stay healthy, so he comes at this from a holistic perspective as the key points show. The focus of his training method is to get the body fuelling its exercise by burning more fat instead of carbohydrates. By staying away from sugar-based anaerobic exercise, stress remain low and the two halves of the autonomic nervous system stay in balance. Too much anaerobic leads to high levels of stress, the body kicking into “fight-or-flight” mode and all the negative effects which are seen in overtraining syndrome.

Certainly the low heart-rate training is a major aspect of the Maffetone Method but once the aerobic system is building up, it doesn’t preclude you from doing some anaerobic exercise. Beyond evaluating what you eat and how you train; he also gives advice on foot strengthening, shoes, exercising to music, as well as how to reduce stress by setting better boundaries, staying in the present and learning relaxation techniques. To an extent, I’ve only scratched the surface in my summarising – it’s a big book that’s why it’s called “The Big Book of Endurance Training and Racing”.

Ultimately the true Maffetone Method is an extensive set of guidance aiming to help you find what will keep you healthy while training extensively. Like any good health system, it’s about learning how your own body reacts to training, to nutrition and identifying any weaknesses that need building up or eliminating. Low heart-rate training is simply the headline being attached to it.

Part 2 can be read by clicking here.

Short sprint – Ordinary speed

In True Speed I wrote about the high speeds at which elite runners run their races; speeds which ordinary runners can barely hit in a sprint. Today we’re going to look at what ordinary speed looks like. Outside of an elite race, most runners are running somewhere between six and ten miles per hour. Even the guys and gals up the front winning the prizes in your local race aren’t running much faster than this. Sometimes it’s even true for elites too, when Gwen Jorgensen was winning her Olympic Gold for triathlon, her 10K was ‘only’ around 11mph, so there’s no shame in not being super fast; only an attempt to better understand what’s going on.

Let’s begin with parkrun. In the table below I’ve listed the times between sixteen and thirty minutes as all but a few parkruns are run in that range. Of course quicker times are available, Andrew Baddeley holds the world record time of 13:48 while Lauren Reid ran 15:45 earlier this year to set a new women’s record.

Parkrun timeMphKm/hMin/mileMin/km
1611.718.85min093min12
1711.017.65min283min24
1810.416.75min473min36
199.815.86min073min48
209.315.06min264min00
218.914.36min454min12
228.513.67min044min24
238.113.07min234min36
247.812.57min434min48
257.512.08min025min00
267.211.58min225min12
276.911.18min415min24
286.710.79min005min36
296.410.39min195min48
306.210.09min396min00

If you want to train to get faster, it’s a useful table for understanding what speeds and paces you’ll need to be running. Once any initial burst of training sees your times levelling off, you have to start training smart.

You do intervals at paces a little quicker than you’re currently running while keeping the majority of your running at paces for a parkrun that’s 2½ – 3½ minutes slower. That’s 2½ minutes for the runners near sixteen and 3½ for those at thirty  If you’re currently running 22-mins at 7min/mile, you’ll want to be training no faster than the pace of a 25-min parkrun (three minutes slower). Even more of your training should be at the pace of a parkrun that’s five minutes slower than you’re currently running.


But we’re not only parkrunners so let’s have a look at what speeds we’re running for different race distances. The vast majority of runners are barely hitting 8mph in any of their races; most are even slower. The top end are the elite values to give you an idea of where there’s capacity for improvement.

4 mph5678910111213
parkrun46min3937min1931min0626min4023min2020min4518min4016min5815min3314min21
10K1hr331hr151hr0253min1946min3941min2937min1933min5631min0628min42
1/2M3hr162hr272hr111hr521hr381hr271hr191hr121hr061hr00
Marathon6hr335hr154hr223hr453hr162hr552hr372hr232hr112hr01

Of course reaching the highest speeds takes lots of dedicated training but certainly isn’t impossible if you understand what you need to do. Most people can run at 10mph (or 6min/mile pace) if only for twenty or thirty metres. If you can do this, then it’s probable with good endurance training you can improve to run times you wouldn’t have considered possible.

Most runners I see are good at unlocking their natural talent but then spend their training time reinforcing it without notable improvement. They seem happy if they’re knocking a minute or two off their marathon after months of hard training. My 10K went from 48 minutes to sub-40 when I got my training right. My early half marathons all came in at 1hr50 but when I took up running seriously I got them closer to 1hr30. I still believe there is significant room for improvement in all my races when I’m done with 800m training. I won’t settle for less, will you?

It’s all about hard work?

I grew up believing in hard work. I was doing a Sunday paper round from age 11, a morning one at 13, I had a part-time job at Broadstone Sports Centre at 15 and my mum told me that if I ran out of work, I should always ask for more! After the Sports Centre I did a year at Tesco on Fruit & Veg, where I believe Brian and Dave, the managers, considered me hardworking enough to entrust one side of an aisle to me while three did the other.

When it came to playing sport, I brought the same workhorse mentality and desire to do everything I could. That stood me in good stead when I played a solo sport like squash where I’d run myself into the ground, but it could be less positive playing team sports where you have to have the discipline to sometimes do nothing more than allow your teammates to do their job.

Nonetheless when playing I would squeeze every ounce of effort out of my body. Running on and off-court to get lost balls, chasing after opponents who’d broken away for one-on-one opportunities in football, diving after every volleyball that came in my direction, man-marking opponents and jumping to block every basketball shot. Playing volleyball I picked up an array of minor injuries which included jumping into the post while trying to hit an errant set, running full speed into a crash barrier at an outdoor summer tournament trying to reach a ball that had caromed ten yards off-court, and repeatedly diving on sports hall floors to which my hip still bears the scar of testimony. Whenever I trained or played, I would always walk off court dripping with sweat. My effort was as good as you could ask for, even if my performance wasn’t what I hoped for.

When I became a runner, I brought this wholehearted approach with me. I charged off down the road at full speed from the beginning of runs. If I reached a hill it was maximum effort up it. I wanted to get faster and ended up gasping for breath for however long I was running. The only exception was on long runs when, knowing I would be out for two or three hours, I tried to ration my effort. But at the end of it all my legs would still be tired and lacking energy. This approached lasted with me until 2011 when I started learning how to train. Even since, as I learned about the benefits of high mileage, I’ve been willing to put in sixty mile weeks despite relatively mediocre race performances.

What I now realise is that, for me, all that hard work was a mistake.


Having read the biographies of Ron Hill, Derek Clayton and Steve Jones, it’s easy to conclude miles make champions. The overriding message that comes from each of them is how hard they trained. Ex-marathon world record holder Paula Radcliffe is another who talks about training hard.

Steve Jones was the world record holder in both the marathon (2:08:05 – Chicago 1984) and half marathon (1:01:14 – Birmingham 1985). He was the pre-eminent marathoner of the mid-1980s with two wins in Chicago, one at London, another at New York. He talks about how he never wore a watch or heart-rate monitor, how he didn’t think about his diet but focuses on putting in hard work to be able to run hard from start to finish.

Derek Clayton ran 150 miles per week on his way to becoming the world record holder for the marathon during the 1970s. Ron Hill ran as much as 130 mpw when he was running world class times similar to Derek. Paula Radcliffe’s success and notoriety came when she moved up to the marathon distance and set incredible world records that lasted for over a decade. Like Steve Jones, Paula liked to race from the front and go as hard as her body would allow.

Each of them credit their running success to hard work.


But I believe there’s a catch to this. The marathon is at one extreme event of the running spectrum. If you’re interested in running the longest distance in the fastest time then working hard to convert all your muscle fibres to become more efficient at fat burning and aerobic metabolism is a good way forward. Forcing yourself through long, hard training runs to handle the pain of running for over two hours, while feeling depleted, is going to make a difference.

For all their talk of success through hard work, none of these world class marathoners was as successful at shorter distances. Steve Jones was a 5,000m – 10,000m specialist before he took up the marathon. His results in the 10,000m major championships are less prolific. No world record, 12th place at 1983 Helsinki World Championships, 8th place in 1984’s Los Angeles Olympics and a bronze in the 1986 Edinburgh Commonwealth Games.

Paula’s track career resulted in a single 10,000m silver medal at the Seville World Championships in 1999. Ron Hill placed 18th and 7th in the 10,000m at the 1964 and 1968 Olympics. Derek Clayton never tried shorter distances once he realised the marathon was where his talent lay.


I’m trying to highlight that while these runners tell you how hard they worked to achieve their notable successes, what goes unsaid is how all that hard work wasn’t any use in shorter distance races and it’s a lesson I believe we can all learn from.

A key part of training is to figure out where your own strengths and weakness lie with regards to your physiology. It’s something a coach should be doing as they get to know your running. Some people are built for speed, others built for endurance. The more you’re built for speed, the fewer miles you need to run in training whatever the event. This was the lesson I never understood until recently. Even two years ago, I was running sixty miles per week to achieve the same 21-22 minute parkruns I was running ten years ago on only ten miles per week. Yet ten years ago when I upped my mileage from ten to thirty I began to run faster times so there’s a paradoxical element to it. Mileage helps when it’s well-aimed.

Finding the sweet spot between speed and mileage is the key to running success. If you’re a complete beginner, it is obvious you only need to do a small amount of exercise to start getting fitter and faster – one mile per day might be enough. If you’re competing at the Olympics, it takes many miles of training each week simply to maintain your fitness before you squeeze out more. You have to find the sweet spot that is right for your level.

Short sprint – “Run as fast as I can”

Recently the BBC ran an article on Emer McKee, who’s set a 5,000m world record for a twelve year old with a time of 16min40. She’s quoted as saying “Normally I’m just running as fast as I can and just waiting for it to be over,” which is pretty much how any all-out 5K or parkrun should feel.

Emer McKee – world record holder in the 5000m for 12-year-olds

Emer started at parkrun when she was nine and joined a local running club, Willowfield in East Belfast, and has been improving ever since, competing in a range of events from 60 metres up to parkrun but also including long jump and cross-country.

Three points I want to highlight from her story:

  1. As a member of a running club, she is getting decent structured coaching and sessions that enable her to make progress. Although the headline from the article implies she “runs as fast as she can” this refers to her races. It doesn’t necessarily apply to her training. Just going out and running the fastest you can every day in training will bring short term results but eventually you’ll see the gains stop.
  2. It’s taken her three years to reach this stage. She began running parkrun in 2017 and quickly made good progress twenty-nine minutes down to twenty-one by year end. Since then it has taken three years of training to build on that and get down to a sub-17 time.
  3. Being part of a club limits the amount of racing she does and gives time for training to develop. While she’s a regular parkrunner, unlike typical adult runners, the rest of her year is not spent entering 10Ks, half marathons and marathons. The club events she does are all completed within twenty minutes (usually significantly less) and therefore don’t require much recovery. By contrast, adults regularly enter distance races that require more recovery and therefore cut into their ability to train to improve.

The great thing about being twelve years old is she’s got her whole running career ahead of her. She turns up to her club and the coach has already decided what the session is and how it will help her (along with her clubmates) to improve. For the most part, her running priorities are defined by the club’s season.

The coaching of juniors is usually very good because the focus is on developing them, through a structured approach to training, for when they are adults. This approach is one I try to replicate for adults attending my Big Red Running sessions. Sessions build on previous weeks to enable progress in the long-term. If you would like to come to my session then please do. Check the homepage for details and if you have any questions by all means contact me for further info.

Update on my 800m training – April 2021

April arrived and I was excited, after four months of following a Jack Daniels 800m training plan, to see how it had paid off. I know I’ve been feeling fitter, faster and stronger but how would it affect my 800m time?

Back in December I ran 2:58 with estimated splits of 39sec followed by 45, 45, 49s.

My fastest 200 in training has been 37.45s, which multiplies to 2:30, so that gave me a cap to what my top end could be. There’s no way I was going to run all four at 37½ so any thoughts of hitting 2:30 were out.

At the other end, I’ve been feeling fairly comfortable running 200s at 44-45s in recent weeks so figured this would be the pace I’d slow to before the final sprint to the line.

This was my realistic range for what I might achieve – 2:35-45. I was hoping I might break 2:40, as that seems like a nice round number. Here’s what happened …

Time Trial #1 – Friday 9th April 2021

I had two recovery days after my last workout and, on the morning, I went for a 1½ mile run to loosen up. It didn’t feel that good aerobically but my legs felt ok.

I had a light lunch, earlier than usual, to ensure it would be digested by the time I ran at six in the evening. I’d selected this day and time predominantly based on weather. My original plan had been to run on Saturday morning thereby giving me three recovery days but the forecast was for it to be 15mph windy by 8-9am. Friday evening’s weather was only 5-6mph and gave the added bonus of having the day to eat and hydrate going into the run. I usually find my body is happier in the evenings.

While I know the 800 is all about effort, and I’d advise anyone to go out at about 90-95% top speed; I was no longer sure what 90-95% would feel like after all the training. I’m now going faster in sessions, even when legs are tired, than I was in December. Unfortunately I didn’t do any prediction workouts and even if I had I probably wouldn’t be able to pace accurately. I decided to just go out reasonably hard and hang on.

On arriving at the park, I ran warm-up and my legs/breathing felt ok. I did three sets of strides and while I felt I put a decent effort into them, my watch was suggesting they weren’t that quick but I put this down to my Garmin being unable to adjust quickly enough so I remained confident.

I gave myself an eight minute break between warm-up and the time trial to let any waste products get out of my legs. But it was a cold, grey evening and I felt a few spots of rain; so I didn’t hang around as long as I might have liked.

I went with the standing split start I’ve been learning, which makes it harder to start the watch, but I was away.

Oh my word, my legs felt unbelievable.

The first time I’ve run hard in months without any lactate in them. They felt so quick and unhindered that it surprised me. I was almost stumbling. I got to 300m and began to start breathing harder but it didn’t feel as tough as it did last December.

Further on my shoulders began to ache. A lot. This only happened to me once in training but apparently also on the last time trial. My legs began to tie up and stumble but I kept going and overall I was feeling confident that I was cutting through the air at pace.

I reached the final stretch, jumping into the empty road and then back onto the path because of walkers and then gave it my final sprint.

My time was astounding …

I could barely believe it …

Two minutes fifty-five seconds.

Only a three second improvement over last time.

It’s so far below expectations that I couldn’t even feel disappointed about it. Four months of good hard training where I’ve felt fitter, faster, stronger and leaner yet no notable improvement.

Perplexing is the word I’d use about it.


Before the next time trial I did recovery runs. On the Sunday I went for a 10-mile long run and began to wonder whether I was really getting the hip or knee extension required to get full force. I started looking at videos on sprint mechanics. Youtube videos and internet articles, the bane of all self-coached sportspeople, but for once I did glean some information that changed how I’ve been thinking about sprinting.

By the time I ran on the Monday, my legs felt like they’d recovered from the time trial and my mechanics were feeling powerful in a way they haven’t in years.

Time Trial #2 – Wednesday 14th April – five days after the first time trial

I decided to start off slower. The first time trial had estimated 400m splits of 1:23 / 1:32 – which are too far apart – ideally there should only be two or three seconds difference. I decided to go out slower, aiming for around 43s on the first 200 (it was 39s on TT1), and if I could replicate that for the second 200m it would take me through halfway in 1:26. In truth, I expected the first section still to be too quick but hopefully by not putting in as much effort, I would be closer to a decent pairing.

It didn’t work out anything like that. I started with less effort but once again my splits for the first 100-200-300 metres each came in at 20 / 40 / 60 seconds but by the 400m mark I was at 1:24 (compared to 1:22-23 on TT1). Once again I started to struggle with the lactate build-up in my legs and arms, and I began to feel my stride ebb away and become uncoordinated. I went through 600 in 2:12-13 (4=5 secs slower than TT1) and finished off with a somewhat lacking sprint to clock 3:00.  Eke!  Worse than my original time trial.

What to make of all this?

While the three second improvement between December and TT1 is technically quicker, to me it’s a negligible improvement, TT2 shows this. I feel there’s something I haven’t unlocked because as I said before I’ve felt fitter, faster and stronger as the months have gone by.

Thinking back on the training, I’ve struggled throughout on the longer intervals of 400 and 600 metres, which points to an endurance issue. I’ve definitely improved it but perhaps not as much as I needed. My Sunday long run has improved from around 8:35/mile to 8:10/mile but that’s still a long way from my 800m pace of 5:50/mile. I’m hoping the upcoming phase of endurance training will bring them closer together.

With regards to following Jack’s plan, I’ve been 95% faithful. I’ve done every effort of every session as he defined them. I’ve not dropped any workouts, swapped days around or changed any of the parameters of workouts. Admittedly my long runs have been longer than his suggested 1-hour but I don’t think that diminished anything.

The one omission that may have been crucial is not doing strides on two of my weekday Easy runs. That might have dug out more speed for the Time Trials but I deliberately didn’t do them as my running history has shown my endurance goes backwards when I do. Even without them, I have found my top end pace is registering as faster. Back in December I couldn’t break 5min/mile but when the time trials rolled around I hit 4:38/mile.

The next six weeks

I decided there wasn’t any point in doing a third time trial, after the second one came in slower, but to begin the endurance phase immediately. It was noticeable that in the following long run, my easy run pace had dropped.

My new schedule through to June involves running eight mile Steady runs on Tuesdays and Friday with a twelve mile long run on Sunday. The rest of the week will be recovery runs and I’ll slip in strides occasionally to keep all the faster muscles involved.

Week 1 – the Tuesday steady peak with an 8:10 mile and the last four miles were all run closer to 9min/mile. Three days later I was hampered by strong winds on the outward leg and pushed home with a peak 7:55 mile for a two-minute improvement.

Week 2 – the first Steady run of week 2 brought calm conditions and a decent improvement. The fastest mile came in at 7:29 and all the miles except the last were under eight minutes. Seven minutes taken off the previous Tuesday’s run. The Friday Steady was relatively calm but my legs must still have been recovering as the last five miles all came in at about 8:05/mile. The Sunday long run, straight out of bed and fasted at 5:55am, was a season’s best on a hillier route via Gravel Hill and Broadstone averaging 7:58/mile

Rounding up my thoughts and feelings

Overall I’m not too unhappy with how this went. As I’ve already said, I know I’m fitter, faster, stronger and lighter. I’ve lost about half a stone in weight since the beginning of January as I began to fire up some of the muscles fibres I’ve stopped using over the past few years. Simply from that perspective, the training has been worthwhile.

I am slightly frustrated though. I’ve done everything by the book and got no result from it. I’m questioning whether Jack’s plan is right for me as I know I’ve self-trained to run whole kilometres at quicker paces than my all-out 800m. I have one or two thoughts on how I could adjust things but I’m going to stick with it for another round of training. I have a suspicion that the endurance training I’ll be doing through May will actually lead to a faster 800 in June.

It became clear to me in February that, entering this training plan, I had a big gap between my easy pace and my 800m pace that needed to be closed up. I hadn’t run faster than 7:30/mile in the build-up and there was nothing to bridge the gap to my 800m pace. While the training did that to a good extent, I believe I now need to cement over the gap and then I’ll start making progress in my 800 time.

I’ll follow the plan again, which will take me through to September and then see where my 800 is at. But parkrun is due back in June so I may find myself attending one or two of those. If I do so, then I’m going to have to go off Jack’s plan somewhat but so be it.