As long-distance runners, we focus on the long-distance run. Obvious. For marathoners, that 20-miler has been a staple our training for decades. The psychological advantage of having achieved that distance starting with a 2 instead of a 1, when you are about to run 26.2, cannot be overstated.
The benefit of that 20-mile run lies in the time it will take you to complete it (Image by ChatGPT)
Yet, there is no magic to be gained at 20 miles. If you train in kilometers, 20 miles is 32.18 Km, far from a round or memorable number. The “magic marker” for those who train in kilometers is 30, for the same psychological reason. This is equivalent to 18.64 miles. Nothing special to that figure either.
But, is there a physiological benefit from running a 20-miler or 30 kilometers, or two or three of them before your marathon? Does it apply to all marathoners? What does science say about this? How does all this apply to you and your training for your next marathon?
Let’s get into it.
While the confidence boost of having a 20 or 22 mile run under your soles is undeniable, its benefits are proven to diminish the longer you are on your feet. The elite Kenyans can cover the distance between less than two hours. The 3-hour runner can do it in 2:30-ish at an easier pace. But the 4-hour marathoner may take 3:45 at an easy pace. You can see the progression.
According to scientific studies: “after running 3 hours the aerobic benefits (capillary building, mitochondrial development) aren’t markedly better than when you run two hours.” This means that a 3-hour run will provide as much aerobic benefit as a 2-hour run. So you will accumulate additional fatigue and need a longer recovery before resuming your normal training.
I’ve read about coaches that do not prescribe 20-mile runs for anyone looking to run over 3:45 in the marathon. Others say 3:30 or even less. Remember that coaching is the intersection between art and science. An art based on science, not a science per se, so trial and error are part of the deal.
In my professional experience, runners that will run their marathons on the slower side than 3:30ish, will benefit from back-to-back runs that will allow accumulated fatigue to do its thing without breaking down the body too much. A long run today followed by a “longish” run tomorrow, where you accumulate from 18-22 miles in a weekend, produces better results than plowing through that mileage in one push.
You can achieve more with less time on your feel and more time to recover (Photo Pexels)
This is not to say that for certain runners, at a certain level of fitness, with a certain goals and with enough time to recover, may not benefit from a 20-miler. And I am not discounting the psychological benefit either. What I am stating is that the 20+ miler is not the key to achieve your marathon goals if you are not on the faster side.
Coach Jeff Gaudette, from Runners’ Connect, wrote recently that one of the two primary reasons why runners get injured is “orogressing their training volume and running speeds at a pace that their body is not ready to handle. Or, as coach Jay Johnson would technically define it, ‘metabolic fitness precedes structural readiness’”.
Before you ask, the other reason is structural imbalances and/or bio-mechanical issues.
Coach John Davis, a PhD in biomechanics at Indiana University’s School of Public Health, provides the following recommendations when it comes to the long run in a marathon training cycle.
Don’t overemphasize the long run, especially when training for the marathon. Not only do aerobic benefits flat line after 2 hours of running, but as this research shows, injury risk increases significantly.
Think prehab rather than rehab. Work on strengthening known or potential weak areas in your running mechanics.
Fix flaws in your running form that become exacerbated during long runs. Improving posture, learning to generate proper hip extension, and fixing overstriding can help prevent many potential injury issues.
In conclusion:
The long run continues to be an essential element of the marathon training. There’s no way around it. But contrary to what has been drilled to us for so many years, the qualifying aspect of the long run is time, not necessarily mileage. It is not the longer the merrier. It is the longer you can run without hindering your recovery, the merrier.
No sugar coating it: Running in the heat and humidity of the summer sucks. It does. However, if we want to remain active during these challenging summer months of running and have any chance of having a solid racing season come fall, we must continue training. And to make hot weather running enjoyable and safe, the only way is by making substantial adjustments.
I’ve shared summer running tips every year since I began blogging, but this time I decided to do something different. I have gone through my previous writings on the issue and consolidated the tips. These, plus a handful of new ones I’ve added, bring the final count of summer running tips to 39.
To be clear, nobody expects you to apply all 39 of these hot weather running tips on every run. These are just guidelines and suggestions with very short explanations to get your thoughts started. I have included links to posts where I have explored the issues in more depth. And if you’re looking for more background or science behind these summer running safety tips, a quick Google search will point you in the right direction.
So, without further ado, here they are:
1 – Listen to your body – If you feel dizzy, nauseated, or overheated, don’t hesitate to stop, cut the run short, seek shade, ask for help, or just call it a day.
2 – Recognize heat stroke symptoms – Know the difference between exhaustion and heat stroke and familiarize yourself with warning signs like confusion, rapid pulse, or clammy skin.
3 – Hydrate all day – Hydration should be a 24/7 habit that keeps you close to fully hydrated by the time you start your GPS watch.
4 –Don’t overhydrate– Overindulging in water or sports drinks can cause hyponatremia, a condition in which diluted sodium levels may lead to seizures, coma, or worse.
5 – Use electrolytes– Supplementing with sodium, potassium, and magnesium helps your body retain and use the fluids you’re drinking more effectively.
6 – Run early or late – Run before sunrise or after sunset to avoid the most extreme heat and protect your body from overexertion.
7 – Monitor the heat index– Skip your outdoor workout if it’s over 98°F with more than 70–80% humidity, as your risk of overheating skyrockets.
8 – Slow down your pace – Running in the heat is harder, so let go of your pace goals and focus on effort instead of speed.
9 – Accept higher perceived effort – A rise in core temperature, not lactate or heart rate, becomes the main fatigue limiter in hot conditions.
10 – Use effort and time, not pace – In summer, pace and heart rate can be unreliable, so go by effort and run by minutes instead of distance.
11 – Recognize the signs of dehydration – Watch for fatigue, brain fog, darker urine, dizziness, or a dry mouth—these may all signal fluid imbalance.
12 – Prehydrate before long runs – Do not cram your hydration; it doesn’t work that way. Hydrate throughout the day and days, not just before your run.
13 – Rehydrate after running – After a sweaty session, replace fluids with water or an electrolyte drink. Not only as soon as you’re done but throughout the day.
14 – Dress light and bright – Light-colored, loose, and moisture-wicking clothing helps reflect sunlight and allow sweat to evaporate more easily.
15 – Train in the shade – Routes with trees or buildings that block direct sun can be 10–15°F cooler and far more comfortable, and safer.
16 – Freeze your gear – Put your shirt and hat in the freezer before a run to delay overheating and make the first few miles more tolerable.
17 – Take short breaks – Stop for 1–3 minutes during a hot run to drink, throw water on your head, or reset your effort perception.
18 – Use water for recovery – Jumping into a pool, cold bath, or even running through sprinklers post-run can drop your core temp and revive you.
19 – Know where the water is – If you don’t know where the reliable water sources are, run with a handheld bottle or hydration pack.
20 – Run indoors if needed – If conditions are extreme, choose a treadmill or indoor track to get your miles without the heat risk.
21 – Build heat tolerance gradually – It takes a few weeks to acclimate, so ease into hot-weather running instead of diving into hard efforts.
22 – Move workouts around when necessary – Move long or intense workouts to cooler days and use weather apps to plan smarter each week.
23 – Use a heart rate monitor – Heat elevates heart rate, so monitor it to avoid overexertion while running.
24 – Expect it to suck – The first few weeks of heat running will feel awful, but your body will adjust and it will suck less. Proceed with caution.
25 – Adjust your training plan – In very hot climates, push harder workouts like long tempos to the fall and focus on base-building instead.
26 – Exploit cooler days – When temperatures drop, use the opportunity for a strong tempo or threshold session to boost confidence.
27 – Don’t obsess over metrics – During summer training, forget about pace, Strava comparisons, or even distance—survival and consistency are the priority.
28 – Take advantage of trails – Shaded trails provide natural cooling, softer surfaces, and often more enjoyable running when it’s hot out.
29 – Eat hydrating foods – Boost your fluid intake by eating fruits and veggies like watermelon, cucumber, and oranges, which are 80–90% water.
30 – Beware of diuretics – Limit high doses of caffeine or alcohol around runs, as they increase urination and risk of dehydration.
Learn how to gauge your level of exhaustion (Photo: Tima Miroshnichenko, Pexels)
31 – Set hydration reminders – Pair water intake with daily habits like brushing your teeth, meals, or use phone alerts to stay on track.
32 – Sip, don’t guzzle – Drink water steadily throughout the day and during your run to avoid bloating and improve absorption.
33 – Internalize year-round hydration strategies – Treat hydration like a year-round discipline, not just something to focus on when it’s hot.
34 – Know your sweat rate – If you’re a heavy sweater, you may need more fluids and sodium than the average runner.
35 – Pair hydration with daily habits – Combine drinking water with routines like meals, workouts, or bedtime to form easy-to-remember habits.
36 – Double instead of going long – On non-long run days, two shorter sessions may be safer than a longer push under the brutal heat. Consider it if needed.
37 – Use treadmill for quality work – Use a treadmill to maintain pace accuracy or intensity when outdoor heat makes it unsafe.
38 – Keep someone informed – Always tell a friend or loved one your planned route and expected return time, or use live tracking apps.
39 – Know the line between tough and dumb – Being smart and cautious during summer training keeps you healthy and able to run tomorrow.
Did I miss anything, or would you like to contribute to the list? Please do so in the comment box below.
In the last post, we discussed the importance of building a strong aerobic base, one on which everything else can solidly rest. That post sparked valuable feedback. Many readers asked, “So, what comes after the boring stuff?”
Now that the foundation is in place, we build on it to get stronger and faster. Opposed to “the boring stuff” is what we I’ve heard called as “The Sexy Stuff”.
Speed over long periods/distances cannot stand alone. Adding speed work doesn’t mean abandoning the easy miles. It means balancing them with strategic sessions designed to improve strength, efficiency, pacing, and recovery.
Speed work isn’t a shortcut; it’s a complement. When done correctly and in harmony with your base mileage, it helps you become the strongest, smartest, and most resilient version of your running self.
Now that we have a base, it is time to work on speed (Image by CoPilot)
There are many types of speed workouts, each one with its own merits to help you run faster, with purpose, and without risking injury. The key is understanding that speed development isn’t about hammering every run to exhaustion. It’s about running with intention. Your easy runs remain the backbone of your training. But now, we are layering specific efforts designed for growth. To get faster, you need to run faster, but only when the time is right.
Examples of “sexy stuff” are the following:
1. Interval Training – Alternate fast running with recovery periods. They challenge your body to hold higher intensities and then bounce back. An example is short bursts of 200 or 400 meters at strong effort, followed by slow jogging. It’s tough but builds both strength and endurance quickly.
2. Fartlek – Fartlek means mixing in bursts of speed during a steady run. There’s no set structure. Just pick a landmark and push the pace, then ease up. It’s a fun, flexible way to teach your body how to change gears mid-run.
3. Tempo Runs – This is your chance to run at a challenging, steady pace that builds endurance and raises your limits. You should feel strong but unable to talk easily. These runs help you sustain faster efforts over longer distances without crashing.
4. Progressions – They are all about finishing fast. Start your run at a relaxed pace, then pick it up gradually. The goal is to finish the last stretch of the run feeling strong and in control, without gasping for air.
5. Hill Running – Short hill sprints build explosive power in your legs, improve form, and speed up your heart rate. They’re good for runners who want to boost their cadence and efficiency. Hills are strength work in disguise.
Other workouts such as Vo2Max, lactate threshold, double threshold etc., require a deeper knowledge of the science and physiology behind them before being tackled. Focus on what you know and understand, not on what the elite Kenyans are doing.
Cross-training is key to remaining healthy while running, especially as you age (Photo Pexels)
But that’s not all there is. To get faster and remain injury-free, you must do work beyond running. Some examples are:
6. Strength Training – Incorporating 2–3 strength sessions per week will make you stronger and, thus, faster. Full-body and compound movements will help with running economy and injury prevention. Think of squats, lunges, deadlifts, and core work.
7. Cross-training – Non-running activities like cycling, swimming, or yoga improve fitness, build strength, and reduce injury risk by working different muscles without the repetitiveness of movement and pounding of running.
8. Plyometrics – These exercises involve jumping and explosive movement to help improve your power and coordination. A few well-timed sets of bounding, hops, or box jumps before your run can sharpen your stride and reduce contact time with the ground.
9. Prioritizing Recovery –Your body needs time to adapt. Without quality recovery, your speed won’t stick, and you’re more likely to burn out or get injured. Sleep well, eat right, foam roll, and stretch as necessary. Gains don’t happen during training, they happen during recovery, where your body adapts and grows stronger.
10. Mental Strategies – Running fast requires mental fortitude. Breaking a tough run into small segments, repeating a mantra, visualizing success or adjusting your thought process may be just as important as the way you train.
Speed work is the exciting part of training, but it only works when done right and is well supported by your solid base. Both elements must work in harmony, complementing each other rather than competing between them. As you start integrating faster sessions into your week, keep your easy runs sacred, your recovery intentional, and your mindset focused on progress, not perfection. When done right, it is this balance what will make you a faster, stronger, and more injury-resistant runner.
Talking about our great workouts and spectacular results is a favorite topic of runners’ conversation. “Johnny’s mile repeats are spot on for a 5K PR!”, “Jimmy is crushing his track workouts.”, “Helen swears by her Fartlek sessions.” So, why am I not doing any of this stuff? Why does my coach have me doing boring stuff?
If you are training for long-distance running, your base is the key. The aerobic base, that is. A skyscraper stands on a solid footing for the same reason the pyramids have stood on their wide bases for 4500 years. They both have a solid foundation to bear the load. The same principle applies to a long-distance runner. Your aerobic base is the foundation of your running. It’s what every training block builds upon, and what ultimately supports your ability to perform. What good comes from running 400 meters in 62 seconds if that is all you can hold, but you are racing a 5K?
To understand the importance of an aerobic base for a long-distance runner, know that even the fittest and fastest Kenyan elite runner runs a marathon 99% aerobically. Even Olympic 5000-meter champions require about a 90% aerobic effort to compete at that level. You’ll likely never be there, but this doesn’t preclude you from the reality of human physiology.
In his “Guide to Coaching”, Coach Steve Magness states: “We have a temptation to want to skip to the ‘cool, sexy’ stuff. It’s boring to do endless easy runs or to spend hours working on the starting position in the sprints. But the ‘boring’ work serves as our foundation. We need a firm understanding of the basics before we move on to the next step. And once we have moved on, we must continually go back to the basics to ensure that they are ingrained.”
Is this clear enough?
The Boring Stuff
It is counterintuitive to accept that you must run slow so you can run fast. Yet this is one of those things you must accept, trust the science, and move forward with if you aspire to become a successful long-distance runner.
The slow (boring) stuff is the key to becoming a strong runner (ChatGPT Image)
Training at slower paces is the foundation of endurance because, among other things, it enhances mitochondrial density (improving oxygen delivery to the muscles), enhances capillary development, and increases fat utilization as fuel, which will make you a more efficient athlete. Low-intensity training also stimulates aerobic enzymes without overstressing the body, allowing more consistent training and better recovery. Over time, these physiological improvements will enable you to maintain faster paces with less effort.
Structured properly within your training, slow runs support speed, stamina and contribute to a better race-day performance. And this takes time. It doesn’t happen by running slow for a week or a month. If you trust the process and keep a written record of your workouts, before you know it, you will be running longer, easier and faster with the same effort. What once was your pushing pace, will now be your warmup pace.
The Sexy Stuff
Now that you have a strong base, we build on it.
Do you want to enjoy the runner’s highs? Build a base (Photo Pexels)
I often compare runners with F1 engines. They can do amazing things, but they require a lot of work, constant modifications and adjustments. The engine is the base, which is solid, but it can’t perform at the expected level without testing, tweaking and failures.
Short intervals, long intervals, Fartlek, mile-repeats, track, threshold, VO2Max, progressions, and so many more are part of the arsenal of workouts you have at your disposal to become a faster runner. These workouts will leave you pleasantly exhausted, provide you with that exhilarating feeling we have learned to love, and get you to enjoy the sweets of a runner’s high.
But be warned. These should be just a fraction of your workouts. You shouldn’t do them day after day after day just because you built a solid base. Maintaining and solidifying the base is a lifetime pursuit. The base of the Eiffel Tower has been constantly maintained since 1889, and thus, still stands strong.
Speed work is essential to becoming a faster runner, but easy recovery runs in between hard workouts and the ubiquitous long run should not be skipped. It should all be in balance.
So, next time your coach asks you to slow down, be patient, or play the long game, understand he/she is not doing so because he/she is mean. There are proven scientific and physiological reasons behind it. So, embrace the boring stuff and become a better, faster runner.
Can you share your slow running experience in the comment box below?
May 2025 grant you countless, injury-free miles and new PRs in all your distances!!
As we stand on the edge of 2024, with a brand-new year in plain sight, it is the perfect time to reflect on what it was, what it could have been, and what we want 2025 to be. The perfect time to set our running goals for the year ahead is now. Just like a blank canvas waiting for Salvador Dalí to create another masterpiece, 2025 offers us the opportunity to lay down our aspirations and ambitions, both in our personal and running lives.
A brand new canva to set up your goals and execute the plan to achive them (Photo: Bertelli Fotografia, Pexels)
It’s easy to fall into the trap of procrastination, telling ourselves we\’ll think of that after the holidays. Then, before we know it, September and October creep up on us, and we find ourselves looking back at a year filled with missed opportunities. So, act as soon as you are done reading this post.
And sure, life gets in the way many times, actually, most of the time. But if we have a clear, set goal in front of us, we can make the necessary adjustments to keep moving forward and still achieve it.
Setting running goals is not just about numbers; it\’s about creating the framework to keep us motivated and focused throughout the year. Each goal serves as a stepping stone toward personal growth, whether that means achieving a new personal best, running a specific distance, or simply enjoying the process a bit more.
As we embark on this journey, remember that your goals should be tailored to your unique running experience and aspirations. You can\’t (or shouldn\’t) run a marathon to please someone else. Your goals should challenge you and only you, but also remain realistic and attainable.
If you haven\’t set up your running goals for 2025 yet, here are some ideas to consider. Consider applying #1 and then choosing four more to get you started. You may adjust as the year moves along.
10 Running Goals to Consider for 2025
1. Get More Sleep – Prioritize 7-8 hours of quality sleep each night to enhance recovery and performance. Sleep is a crucial pillar of athletic success.
2. Set a Mileage Goal – Aim for a predetermined number of miles for the year, like 1000 or 1500. Break it down into manageable monthly or weekly targets.
3. One More Day of Activity – Add another day of running or cross-training to your weekly routine. This can help increase your stamina and fitness without overwhelming you.
4. Strength Training – Incorporate strength training sessions into your weekly routine to build muscle and prevent injuries. A strong body supports better running performance.
5. Specific Distance PR – Choose one distance where you want to set a personal record. Focus your training on either a familiar distance or venture into the unknown for a new challenge.
6. Improve Your Easy Runs – Embrace the easy days as a chance to recover and build endurance. As counterintuitive as it sounds, running slow on easy days will ultimately help you run faster.
7. Keep a Running Log – Maintain a log of your physical activity. Including mileage, pace, effort and feelings. This will help you track progress and identify patterns.
8. Read at least one running book – Knowledge about our sport is always a good idea. Choose at least one book on the subject and learn its history, science, and iconic athletes, or get inspired.
9. Register for your next race right away – There is nothing like putting down some money on a race registration to have a specific goal towards which to work. Don\’t delay!
10. Commit to having more fun – Sure, we all want to improve all the time, but when stops being fun, eventually you will stop. Remember your paycheck and your family\’s love is not determined by your marathon PR. Enjoy the journey.
Any additions? Let me know by leaving a comment below.
