This week’s ultramarathon results include the Québec Mega Trail, Afton Trail Run, Limberlost Challenge, and Grand Targhee Wildflower Run.

This week’s ultramarathon race calendar includes Badwater 135, Afton Trail Run, Big Butt 50k, Finger Lakes 50s Trail Races, and Quebec Mega Trail.

This week’s ultramarathon race results includes the 2025 Western States 100, Wy’East Wonder, Tackle the Toad, and Black Hills 100.

This week’s ultramarathon race calendar includes the Western States Endurance Run, Buckeye Trail 50k, Toxic Trail 37, Many on the Genny, and Tackle the Toad.

June 22, 2025 ultramarathon race results include Broken Arrow Skyrace, Bighorn 100, Catamount Ultramarathon, and New River Gorge Trail Fest.

This week’s ultramarathon calendar includes Bighorn Trail Runs, Six Days in the Dome, Catoctin, Rachel Carson Trail Challenge, and Slay the Dragon.

This week’s ultramarathon race results include Kettle Moraine Endurance Runs, Laurel Highlands, Highlands Sky, and Twisted Fork Trail Festival.

This week’s ultramarathon race calendar features River of No Returns, Kettle Moraine, Highlands Sky, Laurel Highlands, and Ultra Trail Gaspesie 100.

This week’s ultramarathon results include McKenzie River Trail Run, Trail La Clinique Du Coureur, San Diego 100, and Old Dominion.

This weekend’s ultramarathon race calendar includes San Diego 100, Eagle Up Ultra, Dam Yeti, Sri Chinmoy, and The Klondike Ultra.

This week’s ultramarathon results include Worlds End Ultramarathon, Mohican Trail 100, The Full Mo, and Smith Rock Classic.

This weekend’s ultramarathon running calendar includes Smith Rock Classic, Mohican 100, Hotfoot Hamster, Cuyuga Trails, and Run Comfy Numb Trail Race.

This weekend’s ultramarathon results include Sugar Badger 50/50, Sulphur Springs Trail Race, Bubbletown What The Duck, and May Madness 50k.

This week’s ultramarathon race calendar includes Stumptown Trail Runs, the Sugar Badger 50/50, Capital Backyard Ultra, Trail Festival at Pineland Palms, and Sulphur Springs Trail Race.

This weekend’s ultramarathon race results include the Cruel Jewel 100, Keys Ultras, Ram Party, and Born to Run Ultras.

This week’s ultramarathon race calendar includes Sun Mountain, Superior Spring Trail Race, Massanutten 100, Infinitus, and Reesor 50.

This weekend’s ultramarathon race results include Cocodona 250, Quicksilver, Ice Age Trail 50, and Hellbender 100.

This weekend’s ultramarathon race calendar includes Quicksilver, Ice Age Trail, Hellbender 100, Dirty German, and Suffer on Centenial.

This week’s ultramarathon race results include Strolling Jim, Miwok, McDonald Forest, and Outrun 24.

This week’s ultramarathon race calendar features Cocodona 250, Outrun 24, Strolling Jim, Rock the Ridge, and Wildhorse Traverse.

This week’s ultramarathon race results include The Canyons Endurance Runs by UTMB®, Thumb Coast Ultra, and C&O Canal 100.

This week’s ultramarathon race calendar features the Canyons Endurance Runs, C&O Canal 100, Chippewa Trail Races, TARC Spring Classic, and BC Backyard Ultra.

This weekend’s ultramarathon results include Knobstone 50 results, Weymouth Woods results, Capitan Mountain 34 Hour results, and Rattler Trail Race results.

This week’s ultramarathon race calendar includes the Mendocino Coast 50k, Knobstone 50, Capitan Mountain 34-Hour Endurance Run, Hyner Trail Challenge, and the Foxtail Rail Trail Race.

This week’s ultramarathon results include MadCity Ultras 50k road championships, Gorge Waterfalls, Lake Sonoma 50, and Forget the PR Mohican 50k.

This week’s ultrarunning calendar includes Gorge Waterfalls, Mohican Forget the PR 50k, Ouachita Trail 50, English’s Ridge Rumble, and Diez Vista.

This weekend’s ultramarathon race results include Umstead 100, American River 50, Brazos Bend 50, and Diablo Trails Challenge.

This weekend’s ultramarathon race calendar includes the American River 50, Ozark Foothills Endurance Runs, Umstead 100, and Eagleton Trail Challenge.

This weekend’s ultramarathon race results include the Georgia Death Race, Rattlesnake Dick, Oak Mountain, and Hone Quarry Ultra.

This week’s ultramarathon race calendar includes Antelope Island Buffalo Run, the Georgia Death Race, Sleeping Giant Trail Runs, and Clinton Lake Ultra.

Author Drew Dinan runs near the Aletsch Glacier. Sportograf The climb up Breithorn seemed like it would never end. I tried hard to stick with the two runners in front of me, not because I was racing them...

Congratulations on your win at Big’s and for setting the Backyard record running an incredible 354 miles in 85 hours. We know this has been a dream of yours. First off, how is your recovery going? Right now, it's ki...

There is a sense of freedom in going for a run and just letting your legs take you wherever they wish to go. Unfortunately, my legs love to get me lost. After one particularly harrowing experience when I was lost on a ma...

The first time I heard about CBD (cannabidiol) was on the 2013 CNN special, WEED. Dr. Sanjay Gupta reported on a young girl named Charlotte Figi who was stricken with a rare form of epilepsy called Dravet Syndrome. Charl...

My mom wasn’t my top choice to crew for me at Pinhoti, my first 100-miler. Okay, I’ll be honest; she was my very last resort. It’s not that I didn’t want her as part of the team; it’s just that the closest she had ever b...