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This summer Courtney Dauwalter made history, becoming the first athlete to win the three biggest races in ultrarunning in the same year: the Hardrock 100, the Ultra-Trail du Mont Blanc, and the Western States Endurance Run. What’s her secret?

Want to ride like Pete Stetina? Learn how he and other top athletes use Wahoo’s latest tools and technology to achieve their goals—and how you can too.

Tap your full potential with advice from professional coaches and athletes—and the inspiring stories of runners who refuse to be limited

Both require self-motivation, incremental and attainable goals, and a whole lot of follow-through

To ward off cognitive decline, a new analysis suggests that strength matters more than how much muscle you have

People all over the place are creating outrageous unofficial athletic contests that are equal parts grueling and just plain silly. What’s going on?

When you’re plodding so slowly it feels like you're moving backwards, wouldn’t it be better to just... walk?

The new science of skill acquisition can help coaches and athletes get more out of their workouts

News flash: All that data you’re mining may not be good for your health

Scientists want to know why we don’t keep getting bigger and stronger forever

A rural road relay offers the author a chance to return home and consider important questions, like: Who has the aux in the support van and where did they find this weird club track?

A new federal law, the Rodchenkov Act, has the potential to dramatically clean up international sports. A case involving a Texas doping ring illustrates how the new legislation works.

Toss out the marathon prediction equations. Understanding what determines ultra performance takes a whole different approach.

All the digital training data in the world may not tell you whether your workout was any good

A rigorous new study finds small changes in heart rate and subjective feelings of recovery. Do they matter?

A new study of athletic career trajectories finds that early success is less meaningful than you’d think

How failing in training and racing can make you a stronger runner

‘The Runcast’ is a podcast hosted by KEXP’s John Richards that focuses on mental wellbeing through running and music. It’s never been more popular.

Coach Cory Leslie fosters a new team of distance runners at the Under Armour headquarters

Under Armour Coach Lara Rogers shows how women can excel in the pro ranks

Three variations of the glute bridge to strengthen and and add power to your stride

Researchers assess the potential benefits—and downsides—of the hundreds of bioactive compounds in your morning brew

Running fast is important, even for beginners and endurance athletes. Here’s why, plus four essential workouts to start.

Find out how you can achieve your fitness goals and raise money for blood cancer patients and families at the same time

Tramadol has a long history of suspected abuse among cyclists, and now there’s enough data to put it on WADA’s banned list

Sports scientists weigh in on the trends that will keep the PRs coming

Analyzing glucose data from endurance athletes offers new(ish) insights, with the potential of more to come

You can boost performance by tackling heavy blocks of training—if you avoid excess fatigue. Here’s how to walk the line.

Feeling out of shape? Maybe you should run up and down a mountain three times.

To optimize your health or supercharge your training, you sometimes need to look beyond the lab

This avid runner wore his GPS watch 24 hours a day for one month, performing every single workout it suggested

Cutting-edge benefits from being race-fit at 83

After seeing more and more people join in on this outdoor fitness craze, I decided to try it for 30 days

A high-tech approach called metabolomics offers a new perspective on how your body bounces back from 26.2 miles

Running volume is important, but how you structure your training might matter more

Four unconventional ways to manage chafing—and effective alternatives

She knew she was going to be the best triathlete in the world one day. But first she had to learn to swim.

These five red flags might be keeping you from running faster

The latest research suggests that muscle oxygen can detect exercise thresholds, with no blood required

Researchers present new findings on mental fatigue, mental training, and the importance of your surroundings

This one trick can get you out the door and into a routine of consistency and health, whatever life brings

How much mileage should you be running? Two top coaches share helpful ways to think about the volume question so that you can find your optimal mileage number.

At the end of my mother’s struggle with Alzheimer’s disease, I realized I needed to handle my sorrow the same way I approached athletic training

Scientists reconsider the assumption that it only helps strength and power athletes

After being hit by a car, the entrepreneur was afraid to cross the street. Training for a marathon helped her take back her life.

Plyometrics can make you a more efficient runner, and it turns out they don’t need to be complicated or risky

Running can give you a longer life, better sleep, improved immunity, mood, and more—it’s even good for your knees and lower back

To build endurance as a runner is to build “capacity.” But what does this look like? Strength running coach Jason Fitzgerald explains. 

In an excerpt from her forthcoming book, ‘Up to Speed: The Groundbreaking Science of Women Athletes,’ longtime �����ԹϺ��� contributor Christine Yu argues that female athletes deserve their own benchmarks for athletic success.

Researchers look back on the lessons from 25 years of “live high, train low”

Maybe you should start writing a little something about your run, too

First there was altitude training. Then it was heat training. Now it’s… pollution training?

Is your heart rate high, even on easy runs? Aerobic Deficiency Syndrome might explain why. Here’s how to fix it.

The psychology behind why we get so nervous before a race and strategies for coping with the impending pain

New data finds that endurance- or speed-oriented muscle fibers don’t determine how you respond to strength training

In-race data collected during the world championships sheds new light on how top endurance athletes avoid overheating

There’s plenty of hype about ways of boosting your respiratory system. Some—but not all—of it is real, according to a new review.

A new review weighs the evidence that strength and training adaptations vary across the phases of the menstrual cycle

Sure, maybe you get a leg cramp. But you could also get struck by an asteroid.

Simple steps to rebooting your fitness and reinvigorating your running goals

Like many winter sports, Wisconsin's American Birkebeiner cross-country ski race is facing climate change induced headwinds

Athletes of all levels have considered whether their choice of birth control might influence how they train, recover, and perform. But the answer is complicated. Here’s what you need to know.

What’s the difference between overcoming hardship and succumbing to it? Grit.

There’s no more difficult or uncomfortable physical challenge than holding your breath underwater for an extended period

So-called “augmented feedback” can offer both information and motivation. A new study tries to separate the effects.

While trying to qualify for an English Channel crossing, swimmers swallowed ingestible thermometers. They got really cold.

We let dogs out to run. We should do the same for ourselves.

Age may be just a number—but so is your weekly mileage

Has Maurten finally figured out how to harness the power of baking soda without paying the gastrointestinal price?

Double threshold days and lactate meters have propelled Jakob Ingebrigtsen and others to the top. Should the rest of us follow suit?

Meditations on radical incrementalism for the adventurer

Researchers test the assumption that top athletes are more sensitive to internal cues, with surprising results

The former soccer phenom was burnt out and angry. Then he started running every day, no matter what.

A physical therapist details what usually brings runners into his office and lays out strategies to keep you injury-free

Bones are made of dynamic tissues that need stress, just not too much, says one of the world’s best ultrarunners

A new study tests the idea that, with the right building blocks, connective tissue can repair itself after all

Americans Nell Rojas and Nathosha Rogers train alongside the diligence of Kenya’s best runners

Internationally acclaimed coach and author Brad Stulberg wants runners to love the process, seek community, laugh at themselves, and stay flexible

Everything you need to know about motivation, fulfillment, and achievement in this lifetime sport

A big-data analysis of Strava training logs estimates the slowdown for marathoners who miss a week or more