What I've Learnt from Running a 2:08 Marathon

The Long View

What 15 Marathons Have Taught Me

Looking back, there are several things I have learnt about marathon training that I wish I had understood earlier, but they have also been one of the most enjoyable parts of the learning experience as both an athlete and a coach. Below are the eight biggest marathon lessons that moved the needle from a 2:12 marathon down to a 2:08.

"A 2:08 marathon is not built from one breakthrough workout. It is built from hundreds of small decisions repeated over years."

Lesson 1

Recovery Is Part of Training

Recovery is a key part of marathon training. Sleep, nutrition, hydration, and managing stress often have a bigger impact on performance than squeezing in one extra workout. Some of my best training blocks came when I prioritised recovery rather than chasing more mileage.

Valencia in 2025 was my lowest overall average in terms of miles per week in all my marathon builds, yet my fastest to date. As an older athlete, and learning more as a coach, I have come to understand that to adapt to training loads and let the training come out on race day, you have to respect the importance of recovery. More is not necessarily better. It is about learning when to push and when to back off. The small things above all add up.

Lesson 2

Easy Running Is Very Important

An overlooked part of recovery is keeping easy runs genuinely easy and not getting tempted to push and get greedy. When most runners think about marathon training, they focus on the long run, track sessions, and of course marathon pace workouts. What often gets neglected is the easy running between.

Keeping easy pace easy, conversational, is key to getting the most out of the more glamorous kudos-generating runs. The ability to show up day after day without constantly feeling exhausted is what builds the engine. Easy running is a huge part of active recovery between the harder work and one of the most important marathon training tips I can give.

Lesson 3

Fuel Is Key for Performance and Recovery

One of the biggest marathon lessons I have learnt over the years is that you can be as fit as you like, but if you do not fuel it counts for nothing. One thing that helped move the needle for me in terms of moving from 2:12 down to 2:08 was learning to fuel.

Elites are very lucky in that they have individual drinks on the course, but even if you do not have access to personal bottles in your marathon, practicing gels in training is going to be vital to executing your best marathon. For me, a marathon is as much a fuelling challenge as it is a running challenge. That might sound silly, but it is why practicing in training and finding the strategy that works for you matters so much, so you can stand on the start line confident with a tried and tested fuelling plan.

Learning how to take on carbohydrates during long runs and rehearsing race-day nutrition made a huge difference to how I felt in the closing stages of a marathon. This is why every plan I write includes detailed advice on when to fuel and how much to take on during your long runs. I personally aim for 80 to 90g per hour during the marathon. Our full marathon nutrition guide covers exactly how to build up to that.

As well as your race day success, practicing fuelling in training will help aid recovery and get more out of your training week, allowing you to bounce back from harder sessions and longer runs quicker.

Lesson 4

Consistency Beats Perfection

There is no such thing as a perfect build up. It is a marathon cliché, but it is so true.

Every marathon build includes missed runs, niggles, bad weather, work commitments, and sessions that simply do not go to plan. The key is not perfection, it is consistency over months and years. A good training block completed consistently will always outperform a perfect plan that cannot be sustained. So instead of aiming to knock it out of the park week by week, tick off B+ sessions on a more consistent basis.

Lesson 5

Long Runs Are More Than Fitness

Long runs are not just about building endurance. They are where you learn pacing, fuelling, mental resilience, and how your body responds when things become uncomfortable. Every long run is a rehearsal for race day. The closest thing we can do to replicating the feeling at 30km+ on race day is practicing in training beforehand.

Without running the full distance in training, you need to train with a variety of long runs to prepare for the marathon. Time on feet, hilly long runs, progressive efforts, and intervals within your long run all help you improve pace judgement and mental resilience, which you will need plenty of in the final stages of a marathon.

Bonus tip: everyone has a different training philosophy, but for me, save going the full distance for race day. I personally go no further than 38km, or 24 miles, in training. Anything longer and I think it takes away from my marathon. The last thing I want to do is leave it all in training.

Lesson 6

Respect the Distance

In my first marathon I did not really respect the distance. Fuelling aside, I also massively underestimated the mental battle. Marathon training teaches patience, discipline, and the ability to keep going when motivation fades.

The strongest marathon runners are not necessarily the most talented, they are often the ones who remain consistent when training becomes difficult. You have to be patient early on, no matter how easy it feels, to make sure you can finish strongly and be brave enough to commit in the closing stages. That respect for the distance is exactly what stops runners from hitting the wall in a marathon.

Lesson 7

Do Not Compare Yourself to Others

Try not to compare yourself to other runners. They are on a different journey to you: injury status, injury history, tiredness, working hours, lifestyle, family situation, and many other factors, not to mention the physiological strengths of different runners.

Social media makes it easy to compare training volumes, race times, and workout splits. The reality is that every runner is different, and the plan that works for one athlete could be exactly the wrong plan for another.

Lesson 8

Small Details Create Big Results

As mentioned earlier, a 2:08 marathon is not built from one breakthrough workout. It is built from hundreds of small decisions:

• Going to bed on time
• Eating properly after sessions
• Running easy when recovery is needed
• Staying patient during races
• Showing up consistently

Over time, these small things compound into significant improvements. This is why the best marathon training tips are rarely the flashy ones.

Common Questions

Frequently Asked Questions

Summary

Final Thoughts

If there is one thing I have learnt from running a 2:08 marathon, it is that success is not built on extraordinary days. It is built on ordinary days repeated consistently over a long period of time. The marathon rewards patience, discipline, and respect for the process.

If you would like a coach to help you build that consistency, plan your fuelling, and manage your recovery so you arrive at your marathon rested and ready, take a look at our coaching packages or get in touch.

Written by Jonny Mellor

Founder of JM Coaching, 2:08:45 marathon runner and Great Britain international. Coaching runners of all abilities since 2013. Read his full profile.