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This week’s ultrarunning race results include Broken Arrow Skyrace, Bighorn Trail Runs, Highlands Sky 40, and San Juan Solstice 50.

My friend might as well be a cyborg. He measures his sleep and energy via wrist metrics, manages recovery with a Whoop armband and for all I know, wears a …

This week’s ultrarunning race calendar features Bighorn 100, Six Days in the Dome, Night Train Ultramarathon, Rachel Carson Trail Challenge, and Ultra Trail Gaspesia 100.

If you’ve ever struggled with finding the confidence and knowledge to embrace the nocturnal world, guided by nothing but the glow of your headlamp (and, hopefully, a well-planned GPS route), …

We were told to check in with Greg before starting the Old Dominion 100 in Virginia. I found that funny, as if we were all supposed to know who Greg …

This week’s ultramarathon race results includes Kettle Moraine 100, Laurel Highlands, McKenzie River Trail 50K, and Tahoe 200.

This week’s ultramarathon race calendar includes Tahoe 200, Kettle Moraine, OSS/CIA, Laurel Highlands, and North Sun Ultra.

This year at 3 Days at the Fair, all the runners in the field took turns running a lap for Pablo. A picture of Pablo was taped to a pickleball …

At 8 a.m. on April 18, 2026, 125 runners gathered in the shadow of the Sunsphere for the inaugural World’s Fair Ultras. The 1982 World’s Fair is long past, but …

Heat acclimation prepares your physiology for heat stress. Cooling strategies manage it in real time. Both matter of these matter, and they’re not interchangeable. This piece is about the third …

This weekend’s ultramarathon race results include Scout Mountain Ultras, Old Dominion, Dam Yeti, and Trail La Clinique Du Coureur.

The June 6, 2026 ultramarathon race calendar includes Scout Mountain Ultras, Eagle Up Ultra, Old Dominion, Connecticut Ultra Traverse #CUT112, and Trail La Clinique Du Coureur.

Waist-mounted fluid carrying systems have been around for decades, but the standard design has been revolutionized over the past couple of years. Runners no longer hassle with hard-sided bottles that …

Scotty sits down with veteran ultrarunner Ian Sharman to talk about his new book, The Art of Ultrarunning. They discuss  highlights of the book including how to best pace yourself in …

Twisted Fork is a community event, highlighted by two factors: the top-end talent that lives in the Wasatch and the strong contingent of everyday runners that are the lifeblood of …

This week’s ultramarathon race results include Mohican Trail 100, Worlds End Ultramarathon, North Fork 50, and Smith Rock Classic.

I had arrived at 5:15 that morning with a plan I’d reasoned my way into over several weeks. The John Wayne Grit Series 50k had 5,000 feet of elevation gain, …

We sat down with David Laney and Topher Gaylord to find out what they thought key differences were between the US and Europe when it comes to athletes running UTMB …

On Saturday, May 16, 2026, the 18th annual Keys 100 in Florida brought more than 1,000 individual and team runners across 42 bridges along the Overseas Highway to Key West, …

This week’s ultramarathon race calendar includes Smith Rock Classic, Mohican Trail Run, Lake to Ocean 100K, Worlds End, and Blackfoot Ultra.

This week’s ultramarathon race results include Sulphur Springs Trail Race, Stumptown Trail Runs, Adrenaline Trail Runs, and Sugar Badger Trail Races.

The silver edition of the San Diego 100 was run on May 1-2, and the new date, being a month earlier than when the race was traditionally run, brought cooler …

If you entered the Cocodona 250 lottery, you already know what the entry fee looks like. You saw the number, sat with it for a minute and then, signed up …

The May 23, 2026 ultramarathon race calendar includes Stumptown Trail Runs, Sugar Badger 50/50, West Virginia Trail Fest, Trail Festival at Pineland Palms, and Sulphur Springs Trail Race.

The original TNF (The North Face) Altamesa 500 was released in 2023 as the brand sought to combine the most innovative design element of its time (supercritical foam midsole compounds) …

This week’s ultramarathon race results include Cruel Jewel, Tillamook Burn, Massanutten, and Superior Spring Trail Race.

From Gary Cantrell’s humble backyard in Tennessee, the Backyard format has exploded into one of the most influential movements in modern ultrarunning. Backyard Ultras now appear in small towns and …

The logic goes like this: if heat acclimation improves performance in the heat, I should do as much heat training as possible before heading into a race. This way of …

This week’s ultramarathon race calendar features Born to Run Ultramarathons, Superior Spring Trail Race, Cruel Jewel, South Mountain Reservation Mayapple Trail Runs, and Reesor 50.

The ACG Ultrafly Trail is the successor to the original shoe with the same namesake and serves as the high-performance model in the ACG lineup.