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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

Our new weekly discussion program covers outdoor recreation and adventure

How Montana’s Mica Kantor used his passion for running to demand meaningful change

From racing the world’s most competitive ultras to advocating for policy change, this adaptive trail athlete is demanding change for the sport

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?

Just 16 months after his first leap, Jonathan Cox completed 102 jumps in 24 hours

How the Dauwalter duo completed a dream of crossing a finish line together

Criminal-turned-athlete John McAvoy is harnessing the transformative power of sport to put young people on a better path

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

American Charlie Lawrence just set the 50-mile world record, and he made it look easy

The annual challenge has become a competitive—and borderline obsessive—endeavor for runners and hikers

The Merrell trail running athlete shares her experience of discovering a BRCA1 gene mutation—and pursuing her dreams anyway

After developing an early passion for trails, this elite trail runner from Northern California continues to ground her practice in trust, fun, and...race walking

Harvey Lewis, who recently ran 450 miles to win Big’s Backyard Ultra, discusses the mental trickery that goes on during ultrarunning’s hardest race

Those who pursue the craziest endurance races on the planet do it for reasons that make perfect sense

This 250-mile loop around the national park connects tons of trails and a few roads to explore the outer edges of the Smoky Mountains.

Harvey Lewis runs 450 miles in five days while six runners ran at least 100 ‘yards,’ more than 416 miles, at this year’s Big Dog’s Backyard Ultra

Sally McRae tapped into “the power of the mind” to finish the “Grand Slam of 200s”, culminating with a win at the Moab 240.

From professional track star to strong finishes at trail running’s most competitive races, it’s her passion and faith that propels her onward

A regional Canadian race director cries foul after a new UTMB World Series event is launched in Whistler, sending North American trail running community into frenzy.

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

The UTMB World Series announced a new policy regarding adaptive athletes with the hopes of increasing participation. Many adaptive athletes say it doesn’t recognize the realities they face to create a path toward equity. 

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

The founder of Runners for Public Lands listens to the land to guide him toward a deeper sense of belonging, responsibility, and play

Kristian Morgan set a new southbound FKT on the Appalachian Trail, but he’s not done yet

Lucy Bartholomew just became the second woman to race UTMB and the Ironman World Championship in the same year. Here's what she learned.

This episode explores Peterman’s journey in learning from his latest injury and slowing down to enjoy family, friends, and life.

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 young doctor compares and contrasts a 100-mile ultra with cancer treatment

Eli and Tabor Hemming are having a banner year in the short-course trail running world, but the Golden Trail World Series finals might be their ultimate test

One of Canada’s most promising ultrarunners will be digging deep again in the final miles of the challenging UTMB Thailand 100-miler, to book a spot at next year’s Western States

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.

A delightfully low-budget documentary about the Seven Summits (of a Montana neighborhood)

The Catalan mountain runner found a new challenge by returning to the rugged terrain near his childhood home

Researchers say the iconic peak has lost nearly seven feet of elevation since 2021

How the Soboba Trail Race is raising money to combat health issues in Indigenous communities.

A new documentary goes inside the record-breaking run with the speedy Belgian dentist

What Diné runner and race director Harold Bennally has created is all about community

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

The American ultrarunner credits patience and reduced carbohydrate intake during the 153-mile Spartathlon as a key reason she was able to smash the course record

Phillip Kwa’han Espinoza created the San Diego 200 to reconnect with family roots and empower Native youth..

Merrell invited six athletes to run up a Colorado mountain. The first ones to the top got a sponsorship deal. Sounds simple, right? Not so much.

The singer, songwriter, and guitarist for the Postal Service and Death Cab for Cutie applies the same approach to ultramarathons that he does to touring: just keep moving.

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 gear shop owner is the new president of the Prezzies

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

Why so many professional trail runners are now applying their skillset to race directing.

Other highlights at the Pikes Peak Ascent included American Sophia Laukli being crowned the world’s top mountain runner

Santa Fe's Big Tesuque Trail Run offers a chance to run amid autumn aspen and support Wings of America’s Native youth programs 

The fastest known time for the highly technical line was reset twice in a six-day period.

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

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

In 2021, Max LeNail drowned while trail running in a San Diego park. His parents demanded a bridge. Two years later, they’re still fighting. 

Swiss runner Rémi Bonnet leads a world-class field in this weekend’s Pikes Peak Ascent

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...

How the self-described industry disruptor is teaming up with Run Alaska Trails to make space for athletes of color

Finding community while immersing in UTMB’s weeklong trail running celebration in Chamonix

Schide proves she can compete with the world’s best over every ultra distance. New mother Rachel Drake takes sixth, showing she’s back on the world stage.

The livestream coverage begins at 3 A.M. ET Friday

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

The two-time Hardrock 100 champ from Colorado has developed a calmer and more balanced race mentality

A new mother of two combats the pressure of bouncing back from postpartum training

Evans pushes new training, fueling, and racing strategies by cycling, triathlon, and background in the military

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

Despite record snowpack and extreme heat, the ultrarunning dentist shaved over five days off the previous record

After living in France for more than a year, the Hoka-sponsored ultrarunner is as fit and prepared as he’s ever been

The American mountain runner returns to international racing with stoke and strategy to spare.

How will Tom Evans tackle the notoriously difficult Western States UTMB double? By taking the pressure off.

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

About to make his UTMB debut, Colt says the less he frets, the better he seems to perform

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

After an already packed year of racing and adventures, the French runner can’t wait for more

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.

JP Giblin improved on his runner-up showing in 2022, while Jacquie Mannhard, a mother of two, won by nearly two hours

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

The four-time winner of the world’s biggest ultramarathon cited being unable to run due to a sacrum injury