Going longer often tops runners’ lists of goals. Whether you’re working up from a 5km to a half or full marathon, or want to expand your longest distance from a standard marathon (42km) to an ultra, a few key training tactics will get you there safely.

“As much as volume matters…too much volume too soon can get you on the sidelines.”

Of course, building mileage and time on your feet is paramount, but doing it successfully takes patience and persistence. “As much as volume matters, volume is king, too much volume too soon can get you on the sidelines,” Bertrand Newson, certified run coach.

Follow these tips from Newson, other coaches and ultramarathoners, who have a wealth of experience when it comes to going far, to successfully run longer, avoid injuries, and crush your distance goals.

1. Build a Base, Then Keep It Consistent

“I steadily built up to running long-distance races (170km to 400km) over many years, but I started by running one kilometre at a time,” says Sarah Ostaszewski, pro ultrarunner with Tailwind Nutrition, who was the first female and sixth overall to finish the Ouray 100 Mile Endurance Run in the USA recently. “Build a strong base and try to keep a consistent running routine, so then adding a little extra here and there won’t seem so daunting.”

Base training typically requires about four to eight weeks before following a race training schedule, to strengthen your cardiovascular system and your muscles, but the longer you can regularly run and set a foundation, the better.

Your base work should involve mostly easy runs, low mileage, and maybe low-key speedwork (depending on your fitness level), like ending a run with strides. Just remember: This part of your training is all about consistency, rather than actually building mileage.

Ultrarunner and author of A Beautiful Work in Progress, Mirna Valerio stays consistent by focusing on time on her feet, rather than distance. “This has been mentally freeing,” she told Runner’s World. “I have a standing appointment with my treadmill a couple of times a week. I just get it done, which incidentally is one of my mantras.”

2. Find Your Best Approach to Building Volume

If you’re new to running and want to run longer, add another day of a short, easy run to your schedule, suggests Stefanie Flippin, an ultrarunner, Lululemon athlete, and doctor of podiatric medicine, who has earned a first-place finish at several 100-milers, including the 2021 USTAF 100-mile road championships.

If you’re already maxed out on available days of the week, add to your long run mileage, which is what Leah Yingling, ultrarunner and biochemical engineer, does first when aiming to build volume.

The general rule when it comes to building mileage gradually is to stick to about 10 per cent each week. For example, if you currently clock 25km per week with three 5km runs during the week and a long run of 10km on the weekend, you add a kilometre to a midweek run and another kilometre or two to your weekend long run.

Yingling and many other pros also do two runs a day. While this won’t work for everyone, if you don’t have a significant single block of time, clocking some miles in the morning and again in the evening (and resting between) can help you clock more mileage. One must-do to make it work: Tame the intensity on at least one of those runs.

Charlie Lawrence, 50-mile world record holder, views his second run of the day as a sort of active recovery. He often goes for double digits in the mornings, then runs for about 6km at a minimum, in the evening, keeping the effort light.

No matter what, testing out strategies to see what works for your schedule is the best way to run longer. “That might be adding a walk a few days a week in addition to your daily runs, or maybe you’re adding back-to-back long runs,” says Yingling. “Whatever you do, find something that is sustainable.”

3. Follow a Progressive Training Plan

A good training plan will slowly build mileage to decrease your risk of getting sidelined, as research shows taking on too many kilometres too soon is one of the biggest risk factors for overuse injuries.

When choosing your training plan, be realistic about the time you have to build up to the distance you want to conquer, and factor in where you’re at now, says Newson.

For example, if you have your sights set on a half or full marathon, think about what you can comfortably run today. Then, following the loose rule of adding 10 per cent more kilometres each week, how long do you need to train? If you currently run 8km without stopping and feel good after, and can comfortably clock 20km per week, you can probably conquer a 10-week half-marathon plan.

Another important factor to look for when it comes to mileage on a training plan: recovery or deload weeks. Newson explains that this typically looks like three weeks of building volume, then a week in which you back off mileage a little to give your body time to recover and actually make gains from all the work you put into your plan. This will also keep your body strong and help you sidestep aches and pains, he adds.

4. Keep Easy Runs Easy

You’ve heard it before, but it’s especially true when trying to run longer: Don’t overdo your low-effort days.

“It’s important for me to always run my easy runs, short or long, at a conversational, aerobic rate of perceived exertion. This means that I can easily chat with a training partner for the duration of my runs without becoming out of breath,” Flippin says, who also clocks her heart rate to make sure she’s in an easy zone.

Don’t worry about what shows on Strava, either. “I think a lot of runners run their easy runs too hard and that is because of ego, and they don’t want people to think they are slow,” says Devon Yanko, ultrarunner, who placed first in the 2024 McDowell Mountain Frenzy, a 50km race. “I delight in the idea that people may look at my Strava and think I am too slow, because on race day that won’t be the case!”

More generally, applying the 80/20 rule to your training overall can help you record more low-intensity runs, Newson says, as it means 80 per cent of your workouts should happen at a low intensity, and 20 per cent at a hard effort.

It’s these easy runs that will help keep you running consistently – the key that unlocks higher mileage. “A B+ average of consistent runs, strength work, and recovery measures stacked over weeks, months, and years will always trump sporadic A+ weeks followed by a total drop-off,” Flippin says.

5. Master the Long Run

For most people, the long run will make up the bulk of their weekly mileage, but it doesn’t just help you clock more time on your feet. It also teaches you mental stamina, how to deal with fatigue, and it can help you get comfortable with being uncomfortable. With years of practice, this is what many pros say pulls them through long distances.

Even though Lawrence can deal with being uncomfortable for long periods of time, he still turns to mind games to mentally check off miles during a long run. For example, he often breaks a race down into small, manageable chunks, typically focusing on the next fuel stop (about every five kilometres or so) as a checkpoint. If he’s struggling to get to the next marker, he may tell himself he’ll feel better in 10 to 15 minutes and check in again then.

In addition to breaking your long run up into segments, Newson also suggests dedicating each kilometre to someone else, which takes it outside of yourself and gives you another reason to keep going. He also recommends focusing on the kilometre you’re in rather than thinking of all the kilometres ahead of you – and simply putting one foot in front of the other.

Finally, the long run is the perfect time to practice your fueling and fluid intake, Newson says, which will help you run longer and longer. Aim to take in carbs when going for 90 minutes or more, and grab about 30 to 60 grams per hour.

6. Schedule a Few Harder Workouts

To build endurance, you want to run long, but you can also add intervals and speed work into your schedule.

Lawrence gets on the track for VO2 max-specific workouts at least once a week. VO2 max is the maximum amount of oxygen you can take in and use while running and is a major marker of fitness – the better this metric, the easier running will feel, which will help you go longer with less effort. Focusing on VO2 max intensities on runs means going for about 90 to 100 per cent of your max heart rate or about 5km pace, and it could involve intervals like 400-metre repeats.

You could also focus on lactate threshold training. Your lactate threshold is the point at which your body produces lactate at a rate you can no longer clear, leading to fatigue. To help you prolong that side effect – helping you go faster for longer – practice running at your threshold pace. 

Ostaszewski prefers longer interval workouts to improve this metric, with work periods ranging from six to 10 minutes, going at an effort near her threshold.

7. Supplement Your Runs With Mobility and Strength

Before you jump into high mileage, you need a solid warmup. Lawrence has a go-to list of activation drills he does before runs. He starts with foam rolling most of the lower body, then does a series of exercises, including:

• Leg swings
• Down dog to lunge rotation
• Ankle mobility moves
• Banded work, like glute bridges

This routine wakes him up and gets him in run mode, even when he’s not feeling it.

Cross-training workouts are also key to complement your mileage. Valerio mixes strength training, mobility workouts, Pilates, and rowing into her training schedule, which she says helps her avoid overuse injuries.

To keep your muscles strong and able to handle all those miles, you definitely need some strength training; Flippin points to strength workouts as crucial to running longer. She suggests starting with one day a week to build consistency, then adding on days from there.

Lawrence makes sure to do a core workout every day (one of his go-to moves: the ab roll out), along with dedicated gym time for lifting, in which he conquers moves like hex bar deadlifts.

8. Make Recovery a Priority

Many pro runners turn to a solid nutrition practice to jumpstart recovery and fuel future performances. “I ensure I’m always getting in carbohydrates and protein within 30 minutes of finishing a key workout or long run,” Yingling says.

Finding time for other recovery practices, like mobility work, foam rolling, and even meditating, can support your training and get you prepped for the next round of mileage, Newson says. Full rest days are also key, especially if you’re feeling any aches and pains.

And you can’t forget about sleep for recovery, striving for at least the recommended seven to nine hours, potentially even more for those looking to push their mileage.

9. Don’t Rely on Motivation Alone

Running your longest distance takes dedication and determination, but don’t expect to feel motivated every day. “People often wait to do things until they are motivated, when instead, they should have been focused on completing their plan or working toward their goal,” says Yanko. “I don’t jump out of bed every morning peppy and excited to run, but I am committed to doing the work and thus, I simply get the work done.”

Yanko also suggests tapping into curiosity to keep you going longer. “That is, instead of being intimidated by a workout or long run, I allow myself the opportunity to be curious about what might happen if I simply begin the session,” she says. “I do not believe that one workout or one long run ‘proves’ anything about my fitness or ability to race, so having curiosity means I can get into a session and allow it to unfold with confidence that if I just continue to show up and do the work, I will build my fitness brick by brick.”

Newson also suggests a running group to keep you looking forward to your workouts, as they provide a social element, keep you accountable and consistent, and elevate the fun of your workouts.

“On the mental side, I always try to see the big picture and remember that all the kilometres I’m running are for fun and for my own personal enjoyment,” Ostaszewski adds. “I’m always aiming to enjoy the process and recognise growth in the journey.”

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