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Six pieces of equipment for running around a 14,000-foot mountain

“I really did spend 16-plus hours covering fewer than three miles”

Here’s what we know about the Mosquito Fire, how local communities are being affected, and what Western States 100 race organizers are doing to respond

The famous ultrarunner's mindset and approach to sport is changing the game for the better

UTMB is a brutally challenging race, but the race-week hype, world-class competition, and global party vibes have a way of making every runner feel special

It’s an unfortunate tragedy, but, many argue, high-mountain adventure can never be completely free of risk

Everything you need to know about the famed races in Chamonix, France

The loss of a big toenail sent ���ϳԹ��� columnist Brendan Leonard into an existential crisis—but maybe not for the reason you think

Ice cream? Before a run? Yes, please.

Sharon Gayter’s closely monitored world record reveals insights on marathon fueling, pacing, and strategy

Beware of these warning signs that indicate it’s time to get new kicks. Plus, use these expert tips to extend the life of your trail runners.

The Swiss Alps are home to an incredible new hut-to-hut runners’ route called the Via Valais. It’s a little demanding—150 miles, nine stages, and 42,000 feet of elevation gain—but if you can take it on, you’re guaranteed one of the most spectacular adventures of your life.

This retired professional ultrarunner has found (almost) every waterfall along this wild stretch of central California coast. And, no, he won’t tell you where the best ones are.

When you’re covering 145 miles through the Alps, every gram counts

A conversation with Semi-Rad’s Brendan Leonard on the life-affirming joys of type-two fun

The ultrarunning multi-world-record holder talks about sustaining longevity and the biggest thrill of her illustrious career

Missoula, Montana’s M Trail is many things. But mostly it’s just steep.

Reflections on getting just a little bit older

The fell runner from the UK came to the sport relatively late, but she seems to be making up for lost time

The legendary naturalist-ultrarunner discusses his highs and lows over decades of training, running a 50K at age 81 after a car accident, and what comes next

The 40-year-old’s stunning performance smashed two world records on Friday

Mike McCastle has found a very unusual way to benefit others: by enduring agonizing physical challenges

From adventurous sled dogs to aging golden retrievers, online canines make millions of people feel good about their day

‘What It Takes’ provides an authentic glimpse of what an ultramarathon is all about, the importance of the support crew, and the strategy needed to win

In the words of Brendan Leonard: “I did perhaps underestimate it a tiny bit”

In Episode 17 of the Endurance Podcast, host Ian Sharman talks with Olympic marathoner turned ultra trail champion Magda Boulet about her career and how to optimize altitude training for different race situations.

At this distance, you have to be confident in your kit

It’s not exactly fun in the moment, but after, you’ll say it was the best time you ever had

In order to achieve his first UTMB win, the American ultrarunning star is taking a whole new approach: rest

It is believed to be the first death in the 19-year history of the Ultra-Trail du Mont-Blanc races in and around Chamonix

Injury forces ultra legend Scott Jurek off the trail

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

Researchers are searching for telltale clues in your strength, flexibility, or body position that signal an impending injury. It’s harder than you think.

This week’s episode of HBO’s ‘Real Sports with Bryant Gumbel’ offers raw scenes from the infamous race

The former Wired editor, now CEO of The Atlantic, Nicholas Thompson is busier — and faster — than ever at 45. Here's how the new age-group American 50K record-holder does it.

A nonexhaustive list

Seven reasons from Brendan Leonard’s new book ‘I Hate Running and You Can Too’

A new science paper explores the subject at great depth, and concludes that it's possible, but not likely.

Three simple strategies to keep ourselves moving forward while we wait for change.

‘The Infinite Race’ examines the complicated relationship between ‘Born to Run’ and the runners the book made famous

Her death is a sad reminder of the ever present risk in mountain sports

Max King talks about what he's learned from competing in everything from the 3K steeplechase to 100-milers to obstacle racing.

There’s a reason you feel tired: Not knowing where the end is. How the running mindset can help, and how living through the pandemic might make us better runners.

Tracy Beth Høeg, accomplished ultra runner, MD and researcher talks about how COVID-19 affects runners, bone health, vision loss and hallucinations during ultras, the menstrual cycle and more.

Running across the U.S. on a journey to discover the true America during a period of intense political turmoil and deep divides

Why we know so little (scientifically speaking) about how to eat for ultramarathons.

Ready to go beyond the marathon? Check out this introductory guide to ultrarunning and a beginner’s training plan for tackling a 50K.

The infamous race director Lazarus Lake and runner Ben Chan disagree on whether the running community is a place for serious debate

Courtney Dauwalter talks about the training and tactics that have taken her to the top of the ultra world.

The ultrarunner shattered the record for running the 1,147-mile Ice Age Trail in one shot.

'An Almost Perfect Race,' from Salomon, follows runner Courtney Dauwalter​​​​​​​ during her course-record attempt at Western States in 2019

How the predominantly white trail running community is evolving, thanks to some BIPOC trailblazers.

Loads of factors within and outside the body contribute to nausea during ultramarathons, but there are some ways to mitigate it.

Kiplin Pastor had been training eight months for a rim-to-rim-to-rim​ run of the Grand Canyon​​​​​​, but COVID-19 stripped away that chance

8 new running headlamps reviewed, with options for every preference: from forehead to waist to handheld.

The joy of being a masochistic oddball

It's a ways down the list, obviously, compared to people doing actual lifesaving stuff

It’s an isolated struggle against an invisible adversary for an indefinite amount of time. Sound familiar?

The skills that allow you to adapt and endure during a race can get you through the challenge and unpredictability of the coronavirus outbreak.

One lap per hour for as many hours as humanly possible

He's had to embrace incredible physical pain to win iconic ultramarathons like the Leadville Trail 100 and the Western States Endurance Run. But that’s a form of suffering Rob Krar can control—unlike his decades-long struggle with depression.

Things didn’t go as planned for the reigning Western States champ at The North Face Endurance Challenge, but she fought through it. (And drank a lot of Coke.)

Scientists can forecast marathon performance fairly accurately. But for longer distances, things get complicated.

Dave Mackey was the first person to run the Leadville Trail 100 Run with a prosthetic leg

Maggie Guterl became the first woman to win the Big Dog Backyard Ultra, the race with no end

After switching from marathons to ultras six years ago, Boulet continues to blow away the competition

Did your favorite make the list?

By offering minimal prize money, the sport’s most prestigious race might be excluding the best runners

Yes, raw speed helps. But it isn’t everything.

Changing the Way We Handle Adversity

When Mirna Valerio first began running ultramarathons, she immediately got a lot of attention—but not for the reasons you might expect

'Leadman: The Dave Mackey Story' chronicles its namesake character making a return to the iconic Leadville 100 ultramarathon

She's the first person to finish the Leadville Race Series and the Grand Slam of Ultrarunning in a single season

After spending days in the Arctic wilderness, running 100 miles on trail is a piece of cake

Walmsley just bested his own time by an impressive 20 minutes

Or, the story of how I ate snacks and felt pain

The elite competitor and full-time lawyer talks to Tim Ferriss about training and nutrition

Gene Dykes, the world’s fastest 71-year-old marathoner (2:54!) says yes, and tells how he combines frequent ultras and fast marathons.

Making your way over an 800-mile trail through deserts and mountains in less than 16 days is no picnic—except for those gas-station resupply stops

This is a recap of the Nine Trails 35-miler​​​​​​​ in Santa Barbara, California, showcasing some of ultrarunning's top talent