Arizona’s favorite hundred-miler is a Golden Ticket race, and it’s attracting a monster field. Here’s what you need to know.

Have some fun with your fall running with this speed play session.

After a three-year absence due to COVID-19 and a devastating volcanic eruption on the island last fall, the Transvulcania by UTMB ultra race returned with American Abby Hall taking the win.

A lifelong hiker and runner, Julie jumped into ultrarunning two years ago. Shining Rock marks her first unsupported FKT.

Thanks to advances in everything from noise cancellation to battery life, they’re my go-to for long runs, long meetings, and long flights

Where you run—not just how much—can make a big difference to your run form and fitness.

In the third installment of The Backyard Stories, we travel to Telluride, Colorado, to talk with mountain athlete, Dani Reyes - Acosta about connecting food, outdoor adventure, and water.

Instead of searching for the elusive fountain of youth, try celebrating your maturity.

TrailForks is an app and website that lets you know what you are getting yourself into on the trail

The death of Hilaree Nelson highlights a double standard that still exists with mothers in the adventure world

The upstart brand with the wide, comfy toe box, balanced ride, and loyal following had its start in a toaster oven

Two ultrarunners face off to capture the fastest known time on the Arizona Trail, hoping to push one another to a new record.

For our column, Ask Alex Anything, Portland, Oregon-based endurance nutritionist and elite mountain athlete Alex Hasenohr fields common questions about fueling and running.

The best way to find your next pair of running shoes is to shop locally

In the second installment of The Backyard Stories, we travel to California’s Central Valley to talk with Kimo Laughlin about this family’s small orchard, sinking aquifers, and how to live a life of agriculture and adventure.

Step aside, sports gels. These foods have been fueling endurance athletes for centuries.

This weekend, on October 15th, watch 37 national teams compete to win the race with no finish line.

Every fall, the prevalence of hunting where I live in Vermont forces me to shift from running trails to dirt roads. I’ve learned to love the change of pace – and to stay safe.

Moderate alcohol consumption can bring joy to people who are able to enjoy it responsibly. And what’s the point of trail running – or anything else – if we aren’t experiencing joy?

For World Mental Health Day, this short film follows one runner’s journey of accomplishments and setbacks in feeling comfortable in his own body.

A last-minute change of plans left one Colorado elite athlete seeking a partner for the grueling 8-day TransAlpine Run. She found her on a mountain. Wearing heels.

This trail running bird lover shares a unique perspective on autumnal raptor migration.

On October 10th, Trail Runner and Rising Hearts are celebrating Indigenous excellence in running with a panel of leading Indigenous athletes, scientists, and artists.

New data outlines how much they run, how long it takes to resume training after giving birth, and how well they return to competition

For carrying weight while moving quickly in the mountains, the Slope Runner Exploration 18L is our new favorite vest-pack hybrid

The two adventurers that fell in love with each other, then the legendary line linking 14 of Colorado’s highest peaks.

Here's how to keep your running clothes lasting longer and out of the landfills.

This blood marker is a warning sign that your body may be dangerously low in iron.

In this week’s Performance Corner, learn an effective way to think about why hard workout and heavy weight training sessions matter in making you a faster, stronger runner.

Team USA will be sending a strong team to the first combined championships in Thailand

We’re asking thirty-one elite runners and visionaries thirty-one rapid fire questions. What makes them tick? Up next, Faith Briggs.

Mood swings? Fatigue? Hungry all the time? Here’s how to know if you need to switch things up with your food decisions.

This quick workout will help build strength and a range of motion in your ankles, knees, hips, spine, and shoulders

Coach Vanessa Foerster offers five steps to regulate your emotions

Alpacka Raft’s featherweight Ghost is changing the game for multisport adventures.

Though COVID isn’t going anywhere soon, the newer variants may have fewer long-term effects for something all athletes care deeply about: our hearts.

Learning to adapt training and mindset through Alaskan winters

Our running goes through seasons. Embracing general fitness over peak performance takes an attitude adjustment.

Episode Three brings two of the greatest mountain athletes of all-time together for the very first time. Despite their different activities, Kilian and Tommy find connection in their passion for the mountains.

With record-shattering descents and a deep love for the mountain, Colorado-based Mascarenas overcame unhealthy habits and injury to become the Queen of Pikes Peak.

Working towards better balance might actually be what is keeping you from finding passion in life and potential in running. Instead of seeking balance, practice integrating who you already are with what matters most to you.

Trails don’t maintain themselves. Here’s what trail work is and why you should consider volunteering, even if it isn’t required.

Elite ultrarunner Tim Tollefson created a local event that invites everyone to enjoy running mountain trails through races, panel discussions, and films.

Women tend to play down their accomplishments. Here’s why ultrarunner Sally McRae wants that to change.

The supplement Athletic Greens/AG1 seems to be everywhere in the endurance market these days. Registered Dietitian Matthew Kadey takes a look at "greens powders" for athletes and whether they deliver on their mighty claims.

Eating for activity is not as complicated as you think.

One month before toeing the line at this weekend’s Run Rabbit Run 100, a backcountry skier finds inspiration and mentorship to push the pace across one of Colorado’s toughest running routes.

Andrea Sansone spent the summer scouting Nolan’s 14 before setting the FKT over Labor Day weekend

Team USA hauled in a lot of medals at World Snowshoe Championships in Argentina

With the help of a supporting community, Courtney Dauwalter continues to push the envelope while playing in the mountains.

With the biggest purse in ultrarunning and a new team challenge, this Colorado race attracts some of the fastest in the world.

Three days: That's how long it took endurance athlete Jeff Garmire to finish the John Muir Trail. But from health scares to falling asleep while hiking, it was anything but a casual stroll.

But what does it take to keep this mysterious connector primed for sport?

Ultrarunning, why? The Diversity of Motivations and Experiences in Ultrarunners

A perfect partnership and years of mountain travel made an improbable traverse possible

There’s a new trend in trail running eyewear and it’s large, fluorescent, and retro. But how? But why?

Fall races are looming on the horizon and in many places we’re at the peak of summer heat, so here’s what our editors have been running in, listening to, and reading.

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

The watch-maker Coros published a fascinating snapshot of Kilian Jornet’s training data in the weeks leading up to his course record performance at UTMB. Let’s break it down.

360 YOU ultra athlete Sally McRae shares how she has approached the first three races (335 miles over 6 weeks) in her #ChooseStrong project.

Runners make common mistakes when it comes to keeping their feet healthy for the long run.

Reebok’s Floatride Energy 4 Adventure delivers a road-shoe ride with just enough toughness for dirt

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

Spoiler alert: Research shows fasting might not be the answer for female athletes looking to maintain good metabolic and cardiovascular health

With integrated carbon plate technology and balances propulsion and cush, this shoe is fun and fast as heck.

We caught up with Jim Walmsley after his 4th place finish at UTMB

Two improvising trail runners on making it up as you go

2022's Edition of the Ultra Tour de Mont Blanc is in the books. Here are the stories and changes we're tracking, and what they mean for the trail community.

HRV can help you decide when to push—and when to hold back—for optimal fitness and recovery.

In episode one of Peaks Project from Black Diamond, Richardson and Boulder community members share why this mountain is so special to them.

Wild and crazy running adventures on the Colorado pack-burro racing circuit

The biggest climate change legislation ever has just cleared the senate. Here’s why trail runners should care.

The essential ingredients in Hannah Allgood’s mountain adventures are curiosity and self-belief.

With Midwest roots and South American training, Schmitz is ready to push her limits.

Check out Brian Metzler's author page.

Anchored by relentless positivity, Sabrina Stanley’s career continues on an upward trajectory.

With a deep men's field at ultrarunning's biggest event, can Jim Walmsley become the first American man to claim the title at UTMB?

A wonderful 2022 study has novel insight into the training of 3 top finishers at the Giro d’Italia, one of the biggest cycling stage races of the year. The case studies show that what we expect athletes to do in theory and what they actually do in practice can diverge. And that leads to some fascinating lessons about training theory.

Joe McConaughy sets a new Fastest Known Time on the 223-mile John Muir Trail.

With the first-ever Golden Ticket race in Asia, there are more opportunities than ever for international runners to gain entry. How will this change reshape the startline at the U.S’s most competitive 100-miler?