By Coach Adolfo Salgueiro

As a running coach, athlets often ask me about weekly mileage. How many miles should I run if I want to complete a marathon? Can I only increase my mileage by up to 10% a week? Why can so-and-so run XX miles a week and I am running only half of that? Am I losing fitness if I lower my mileage for recovery purposes for a week or two? And many, many more.

The right mileage is as individual as each runner. There is not one number that applies to everybody (Photo: Pexels)

Well, the answer to all these questions is the same. It happens to be the same answer to most running questions: It depends.

They key for any runner looking to improve on their times, distance, pace or fitness is to understand that the main goal should be based on performance, not on a pre-set number of miles. It is a matter of achieving your objectives while remaining healthy and injury-free. I recently read that you should run in between “as much as you can get away with and as little as you can get away with”. Genius!

The appropriate mileage for a runner is as individual as each athlete. It depends on a series of variables which need to be dialed appropriately so progress won’t be hindered, and injuries may stay away from the equation. Such variables are:

Goals: Before you figure out what is the right mileage for you, set up your goal. If you want to run your first or your best 5K, you will not run the same mileage as if you were training for a marathon. At the same time, a marathoner may need to run 100+ miles per week if he wants to run 2:20, while that number is a prelude to severe injury for a runner trying to break 4-hours in the same distance.

Age: Even the elites slow down as they age. They still run more than you or me, but they require more recovery in between vigorous efforts. What you could do in your 20s or 30s no longer applies in your 50s or 60s and you must accept it as part of the aging process. Look forward to competition in your age group and to be the best you can be at whatever stage of your life you’re currently at.

Experience: If you have been running for 30 years, your body is adjusted to a certain pounding on its bones and soft tissues. This alone will allow you to run longer. Not because you are holier than thou, but because you have adapted. Understand that not because you have adapted, your body can take unlimited mileage, so don’t overdo it either.

Miles are dictated by the interaction of many variables, such as goal, pace, experience and injuries, among others (Photo: Mikhail Nilov, Pexels)

Pace: Most runners want to run as fast as we can. We would love to set up PRs in every race, but that’s a chimera. So, we adapt to reality. Running slow is the key to running faster, for many physiological reasons that are beyond the scope of this post. Understand that the long run is about spending more time on your feet, pounding the surface, not about running faster. The sooner you’ll grasp and accept this concept, the faster you’ll be running.

Injuries: Certain injuries will require you to stop running altogether. For days, weeks or even months. Others will force you to reduce your mileage but not necessarily stop. Be smart and make sure you understand what your body is communicating. A shorter mileage today may be the key to avoiding zero-mile months down the road because you overdid it and now you are injured.

The 10% Rule: This is an urban myth. This is not a magic number, not even a well-reasoned percentage. If you are an experienced runner and your body has done it recently, you can increase that mileage by as much as you can tolerate it. If you are coming off 10 years on the couch eating Doritos and drinking Coke, it is advisable to take it easier. Less than 10% per week.

Sure, there is always the freak of nature that hit the gene lottery and can do whatever they want, for as long as they want at whatever pace they want, with little to no recovery time. Yes, they exist, but those are outliers. Do not compare yourself to them. It would be like comparing yourself to Eliud Kipchoge and not understanding why you can’t run a sub-2 marathon. So, be smart.

The essentials for a solid running plan are flexibility and adaptability. It must be dynamic. The best is always an individual plan, personalized just for you. But it is understandable that this is not in everybody’s reach. Generic plans downloaded from the internet may be ok, but are dime-a-dozen, with the key operating word being “generic”. If you are to use one of these, make sure you are not so rigid that you’ll end up hurt because you did too much or undertrained at the starting line because you did too little.