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On the final weekend of September, with the aspens exploding in peak color, nearly 700 runners gathered in Colorado’s Arkansas Valley to take on two days of high-altitude trail races: …

This week’s ultramarathon race calendar includes Run the Rock, Tunnel Hill 100, Stone Mill 50, Veterans Trail Festival, and CSB Backyard Ultra.

As the race director, I’m totally biased, but I truly believe we have something unique and special. And by “we” I mean the volunteers, the runners and the community that …

Backyards are now in over 80 countries around the globe, with team championships, golden tickets and at-large lists all leading to a biannual showdown in Bell Buckle, Tennessee: last runner …

This week’s ultramarathon race results include Rio Del Lago, Pinhoti 100, Conquer the Castle, and Silver Falls 50k.

We began our grassroots campaign in late 2020, and the Broken Anvil Backyard Ultra was born. The name is a nod to those who go beyond the limits of what …

Historically, the Barkley Fall Classic has had a 50k finisher rate around 25–33%, but this year the figure was just under 5%. Imagine that – the BFC is harder than …

This week’s ultramarathon race calendar features Rio Del Lago, Chicago Lakefront: Fall Version, Pinhoti, TARC Stone Cat Trail Festival, and The Dark: 24 Hours Underground.

As doctors and scientists, we aim to distinguish between science and pseudoscience, and we hope to persuade you to reject wellness spas and clinics offering IV therapies and adopt a …

This week’s ultramarathon race results include Big’s Backyard Ultra, Javelina Jundred, No Business 100, and Door County Fall 50.

Muscular endurance, what many in the endurance community now more accurately refer to as durability, is a cornerstone of ultrarunning performance. It reflects the ability to sustain movement, resist breakdown …

This weekend’s ultramarathon race calendar features the Canyonlands Ultra, Door Count Fall 50, Javelina Jundred, Womp Romp, and The Bad Thing.

Our romantic partners, those who we’re in a personal, intimate relationship with, often contribute significantly to the ultramarathon events we participate in. However, there’s an argument to be made that …

This year, I had the opportunity to be a part of Ryan Sandes’ Cocodona 250-mile pilgrimage from Phoenix to Flagstaff, Arizona. What I witnessed during my 62 hours pacing, crewing …

This week’s ultramarathon race results include Mines of Spain, Uwharrie, California Fall Classic, Bromont Ultra, and Big Dog’s Backyard Ultra.

The Leaky Hourglass Ultra in Halfway, Missouri, features the standard 4.167-mile loop used by most last person standing events, but this one has a daunting twist: one minute is subtracted …

A quad and lung-searing challenge offering breathtaking views of the Yampa Valley, the Continental Divide Trail Run (CDTR) in Steamboat Springs, Colorado, is one of 11 races in the non-profit …

This week’s ultramarathon race calendar includes the California Fall Classic, Wild Duluth Races, Big’s Backyard Ultra, Ghost Train Trail Races, and Bromont Ultra.

Norda recently released the 001A, which is essentially a mash-up of the workhorse 001 model and the race-ready 005.

This week’s race results include Le Grizz, Kodiak Ultramarathons, Grizzly Ultra, and Moab 240.

Host Scotty Sandow sits down with UltraRunning Magazine columnist Jared Beasley, an author and journalist who never expected to find himself embedded in the sport of ultrarunning and just wrote …

This article explores how these athletes—and their coaches—navigated the critical stretch between those summer “A” races and the World Championships using smart recovery, strategic training and data-informed decisions to peak …

This week’s ultramarathon race calendar includes Le Grizz, Indiana Trail 100, West Virginia Trilogy, Midstate Massive Ultra Trail, and Grizzly Ultra.

The new Mafate 5 represents a significant departure from its predecessor, dropping the “Speed” designation and embracing an even more cushioned, comfort-focused philosophy that prioritizes long-distance protection over technical agility.

This weekend’s ultramarathon results include Saddles 100, DC Peaks 50, Hennepin Hundred, and Arkansas Traveler 100.

Few trail races begin with compulsory mountaineering helmets, but the unusual start of the Kailas FUGA Gongga 100 Extreme Glacier Challenge was different from most races.

This weekend’s ultramarathon race calendar includes Cuyamaca 100k, The Hennepin Hundred, Arkansas Traveler, Oil Creek 100 Trail Runs, and Iron Horse Ultra.

Although Twisted Branch is just one Saturday in August, its impact on the people in the community, the runners that train for it and perhaps, most importantly, the longevity of …

This weekend’s ultramarathon race results include the Bear 100, Yeti 100 Mile Endurance Run, theMAMMOTH 200, and the Vermont 50.

This year’s race was difficult to pull off due to the aftermath of two major fires that affected the race at both the start in Wrightwood (WW) and the finish …