Now in its second year, the program—led by criminal-turned-athlete John McAvoy—aims to harness the transformative power of trail running to put young people on a better path

Colorado Silver Star, a family-run metalsmith in Denver, Colorado, has been handcrafting each and every buckle awarded toLeadville 100 finishers for nearly 40 years

How sharing miles on trails deepens a bond between dog and human

Here are some things I’d tell myself, if I could travel back in time, about ultrarunning

The legendary mountain runner riffs on his shapeshifting career as an endurance athlete, the state of the sport, bikepacking, and a post-punk album he can’t stop talking about

Small, independent, running brands are thriving and vibing. What does it mean for the future of the running industry?

It’s not enough in this day and age to just have followers. To really scale up any media pursuit, you need to have fans. When the most die-hard and vocal fans have the biggest say and greatest sway via subscriptions, it can warp the content you’re willing to make.

Strava’s year-end report shows that more runners are turning to competition and how different generations compete differently

America’s hard-bitten wildland firefighters are switching gears in the off-season to run ultra distances

From the rise of sub-ultra racing to UTMB, Hut-to-Huts and influencers, here are the stories that shaped our culture in 2023.

The Speed Project underground relay—traditionally run from Los Angeles to Las Vegas—spread its wings this year, going bigger and harder across Chile’s brutal Atacama Desert

Ultrarunner Yassine Diboun found his own unique way to help those in recovery move through darkness together. It’s working. 

As running brands invest in social media influencers and professional athletes, runners face new opportunities and challenges

An inspiring lineup of one-of-a-kind runners you’ll wish you heard of sooner

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

A look at how training has changed from the early days of the sport to the record-setting landscape of today

‘Limits’ makes fun of the challenge of landing a professional contract in a way that will delight fans and non-fans alike

Running from hut to hut over multiple days among dramatic mountains with others offers a unique format to experience awe, sustained immersion in landscapes, and crazy fun 

The Golden Trail World Series is elevating the exposure—and clout—of ‘sub-ultra’ trail racing

Deceptive eco-marketing techniques prey on consumers who want to make responsible purchases. Here's how to sort through the greenwashing.

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

A rare autoimmune disease that causes painful tumors on his body won’t stop him from chasing his passion and attempting the 100-mile Run Rabbit Run

Outside’s ethics columnist weighs in

Do I like planks any more than I did at the start of this challenge? Ehhh...

I’ve visited the Mont Blanc region more than a dozen times and am always gobsmacked by mystical aura it exudes

The former hockey player turned triathlete turned ultra runner is heading to Chamonix to Race UTMB OCC

Brooks adds Stanford’s Meika Beaudoin-Rousseau to its growing trail running team

An inmate serving a sentence in Ohio turns setback into opportunity from within, joining a running club and raising money for student school supplies 

Forget stuffy, competitive running races. Take the Bridge is an underground race series that’s all about breaking rules and doing things your own way.

After an alarming encounter on a trail, getting a dog helped me enjoy running again

The new book, ‘Becoming a Sustainable Runner,’ offers a science-backed playbook for being an ecologically-responsible athlete and citizen

As the sport of running grows, so do many of its cottage industries. Coaching has quickly become an industry that many are tapping into as more people enter the sport, but experiences may vary.

The Running Industry Diversity Coaltion’s study emphasizes the long road ahead for achieving racial equity in trail and ultrarunning

How one trail runner makes swimming pools and alpine lakes the destination, while the whole journey is the reward

In January, Runners for Public Lands launched a new program to help runners from underrepresented backgrounds thrive in the trail community. Here are the first athletes.

Pacing at long distance running events is common in North America, but it can also be intimidating. Here are seven essential tips from veteran ultra athletes.

Finding adventure in the mundane is as easy as lacing up your shoes.

Interesting mid-run offshoots and alternatives can mix up the monotony of serious training

The boat people volunteers who shuttle runners across the American River at mile 78 on the Western States 100 Mile Endurance Run have seen it all

Whether you want to try for an FKT or take a more leisurely outing, here are a few adventure runs to put on your list

Whether she’s setting mountain FKTs or working to bring attention to climate change, Hillary Gerardi is a force of nature

The historic ultramarathon in Vermont was canceled due to historic floods and a state of emergency. This didn’t stop race organizers and runners from helping out those in need.

Follow Black Diamond athlete, Kyle Richardson, in Rio de Janeiro while he explores styles of Brazilian drumming and trail running

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

Focus on your own training and performance as you immerse in the local community and the unique challenges of the natural environment

Age slows everyone down eventually, but that’s no reason to quit trail running.

A small subset of Hardrock Hundred runners stretch to complete a superhuman series.

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.

For Indigenous cultures, running represents a spiritual connection to the natural world.

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

From foraging wild asparagus to scouting for the perfect shot, these runners are proving there’s no wrong way to run

One of the world’s leading kung fu masters has trained the Wu-Tang Clan, Björk, and Wesley Snipes. Running is central to his training. Here’s why. 

One writer on why she might innately crave adventure.

Farvard is one of 17 athletes selected for The North Face’s Athlete Development Program. His mountain objectives, including this month’s Western States 100, have never been more ambitious.

Racing in last year's Western States 100 Mile Endurance Run changed my life and made me fall even deeper in love with running.

What storytelling around running can tell us about where the sport is headed

Here are five ways to celebrate Global Running Day, even if you never knew it existed

Here are the most important things to know before catching a flight for your next trail running adventure

Whether you’re experiencing a menstrual cycle or need to go number one or two, here are the current sustainability guidelines and etiquette for ‘business’ on the trail.

2021 Outsider of the Year Steph Catudal’s new memoir, ‘Everything All at Once,’ offers a raw look inside the paradoxical landscape of grief and surrender, love and loss of her father, and nearly her husband, endurance athlete Tommy Rivs

Race director Megan DeHaan partners ultrarunning and agriculture to celebrate and protect open space

As multiuse trails get more crowded, we can all do our part to avoid conflict.

Doug Mayer tells interesting stories behind the rise and growth of UTMB

Jennifer Licther, Mike Foote set out to creating visual and emotional connections to fight climate change, and photograph every remaining glacier in Glacier National Park.

Welcome to the world of the Cowgill Trail Collective

Social media influencers have started a trend of posting videos of them running long distances without training. Here’s why the science says it’s probably not a great idea.   

A list of basic and completely necessary items that every trail runner needs for taking on their next endurance challenge.

Runners with chronic illness inhabit two faraway worlds–one characterized by fitness, and one characterized by debilitating symptoms and daily uncertainty

Despite the proliferation of destination marathons, some runners are making a conscientious decision to stay closer to home. But they wouldn’t judge you.

Your HRV can be a helpful indicator for several trends in your training. It can also predict an oncoming decrease in mental wellness. Here’s what we know.

Yes, this shoe comes in other colors. No, that doesn’t mean you should buy it.

5 tips to help you feel less critical and embrace your body.

Can this super-energized drink take ultrarunners to new levels? Yes, absolutely!

Real-time video coverage of ultrarunning events is becoming increasingly sophisticated. Is that a good thing? 

Dimity McDowell had built her life around running. But to stay pain-free, she had to accept that it was time to put the running shoes away—for good.

Here’s how the champion trail runner is preparing to take on the legendarily ‘hilly’ Boston Marathon Course in her 26.2 debut.

In his new book, ‘A Mile at a Time,’ endurance athlete Travis Macy offers key insights about helping his dad endure Alzheimer’s disease. 

Don't let your own ambitions put you in danger: Knowing when to take a risk and when to run away is an essential skill for every adventurer.