The Tokyo Games reminded us why athletics remains the greatest show on earth

Our gear director has tried many workout drinks while exercising in the high desert of northern New Mexico. He thinks Nuun is the best. “I’ve tried countless other during-exercise solutions and found that Nuun products are the lightest and most gentle on my stomach,” he wrote.

No runner has ever won the 5,000-meter, 1,500-meter, and 10,000-meter treble at the same Olympics. But there have been other memorable distance triples and doubles.

In what might be the first step toward an unprecedented triple, the Dutch runner won two races on the same day

Exercise and digestion often don’t mix well, but scientists are on the case

Despite IOC malfeasance and the ongoing pandemic, the five-ring spectacle is too seductive to ignore

After losing his father to cancer, a mule deer researcher embarks on a healing migration of his own

After 2,652 miles, 400,000 feet in elevation gain, and more than 51 days, the ultrarunner finished his PCT thru-hike

When, how, and what to tune in for running, cycling, sport climbing, surfing, and more

As events as big as the Olympic Trials get rescheduled because of heat, we went to the science to find out how you should decide when it is too hot to run safely

Five years after the Vaporfly upended marathon running, track shoes are set to star in Tokyo

New research fine-tunes the details of heat adaptation

After two more star runners have been excluded by World Athletics’ policy, the governing body will have to reap what it has sown

Amid a national conversation about race, colonialism, and justice, Native mappers and runners are reclaiming Indigenous cartography, names, and land

A bevy of mapping apps exist to track and plan trips for different outdoor activities. Here’s the best one for running, cycling, hiking, backpacking, climbing, and skiing.

The 44-year-old is ready to take on the world’s best marathoners at the Tokyo Olympics.

It has all the comfort and features you’d expect from a high-end performance shell, but at an affordable price

Thanks to these boots, hiking went from painful to pure bliss

The physiology of events like the Ultra-Trail du Mont-Blanc is radically different from “short” events like the marathon

Working stabilizer muscles can lead to big gains in and out of the gym

After losing her father to Alzheimer’s disease, one writer reflects on her relationship with grief and running—and the connections between the two

Instead of focusing on joint angles and limb movements, a new study takes a holistic approach to the biomechanics of elite runners

When you start a new sport, everything will be hard, perplexing, and intimidating. But your brain will be on fire.

Hard-won advice from someone who hated the sport, until it changed his life

A spiral of injuries—and the attendant existential crisis—can be an opportunity to revisit the fundamentals

For serious training sessions that end in the ocean, any old bikini won’t do. Here are our favorite specialized sets.

Tuliamuk had secured her spot in the Tokyo Olympics—then 2020 happened. Fortunately, she’s always run for more than just the medals.

New research sifts through the evidence to figure what types of intervals make you fastest

The multiple American record holder is a huge fan favorite—does that give us a biased view of her case?

Your hydration needs are as unique as your training schedule. Here are four picks for every kind of run.

Will Trials of Miles’ scrappy approach work after COVID? 

The mile isn’t just another race distance. It’s almost its own sport.

In a new event for Outside+ members, meet and train with the stars of Team USA

There you are, at the bottom of a hill, on foot, or on your bike, or on skis, ready to start up. But are you really ready? Here are a few strategies you might consider. 1. Choosing More Pain for Less Time by Going Faster over Less Pain for More…

After 21 ultrarunners died in a trail race in May, the Chinese government responded dramatically, and many are worried about the future of the adventure sports boom that’s been taking place there

It's time to stop judging people for how they recreate outside

A special 30-day series celebrating nonprofits working for LGBTQ+ inclusivity

It’s a fun, easy DIY project that will help elevate any meal or snack

Since Mary Cain spoke out about the Nike Oregon Project in 2019, a growing wave of young runners have come forward with their own allegations of negligent coaching and toxic team cultures across the sport

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