Trail Running Calendar Wyoming 2026-2027

Test your endurance at this free backyard ultra on the gravel paths of Laramie. Complete the 4.17 mile loop every hour until only one runner remains to be crowned the Pronghorn King or Queen.

A playful community mud run in Jackson, WY on April 18, featuring a 3 mile informal course with no timers, suggested donations for adults, families and businesses, and a hot tub and snacks at the finish.

Run through the night at Glendo State Park. This event challenges you to complete as many loops as you can on the scenic trails before sunrise. Choose from four timed options, from 3 to 24 hours, and tackle loops ranging from 1 to over 13 m..

Hit the trails in Casper on May 16 for Trail Mix Run Wyoming at Mike Sedar Park, with creeks, hills and muddy singletrack. Pick a 3 mile accessible route, a tougher 10 mile course, or run virtually from anywhere.

A classic trail race near Laramie, WY offering a rugged 25K and a new 10K option with summit views, two aid stations, cupless aid, and proceeds supporting Pilot Hill conservation.

Sinks Canyon Trail Races in Sinks Canyon, Wyoming offer 50 km, 18 km, 6 km and a Kids 1 km. Routes run through meadows and forest singletrack and follow the Middle Fork of the Popo Agie River with views of the Wind River Mountains.

The Bighorn Trail Run offers a rugged, remote challenge in the Bighorn Mountains on June 19-20, 2026. Choose from four distances on technical trails with potential wildlife encounters. This classic ultra-running event tests endurance with s..

Experience world class ridgeline running at the Wildflower Run with four trail distances ranging from a kids 1K to a 50K ultra through fields of mountain wildflowers.

Experience trail running in the Bridger Teton National Forest with races ranging from 15K to 50K. Runners enjoy views of the Grand Teton and mountain wildflowers while spectators utilize local gondolas to follow the action.

Test your endurance on the rugged trails of the Medicine Bow National Forest with 24 hour, 12 hour, and single summit challenges. Experience a technical mountain course while supporting a meaningful cause for veterans.

Trail race in Evanston, Wyoming along the Bear River greenway and state park, offering three distances from 10K to 17 miles. Courses combine river-bottom trails and bluffs with Uinta range views, with aid stations and finisher awards includ..

On July 18, 2026 in Casper, WY, the Skunk Hollow Sneaker Chase offers an 8 mile trail option and a Backyard Ultra on a 4.17 mile loop, with parking and festivities at Casper Mountain Trails Center.

Experience the rugged beauty of the Wyoming wilderness at El Vaquero Loco. Run through the western landscape on technical trails to support local high school athletic programs.

A 105.7 mile point-to-point trail run in Bridger-Teton National Forest from Middle Piney Lake to Box Y Ranch, featuring about 24,000 feet of ascent, aid stations roughly every 10 miles, and a 48 hour cutoff.

The Tails and Trails 5K is a community event supporting animal therapy, featuring a flat course through Cody along the Shoshone River. Participants can run or walk with their dogs on August 8, 2026.

Run moonlit singletrack on Casper Mountain at the Night Crawler Endurance Challenge, an overnight time based event with 4 and 12 hour solo and 12 hour relay options. Finish with volunteer made hot breakfast and awards in central Wyoming.

Run the scenic Medicine Bow Rail Trail and Lake Owen at high elevation in Wyoming's national forest. This event offers both marathon and half marathon distances, all on a historic pathway. The 2026 edition is scheduled for August 15.

Antelope Dash on August 22, 2026 in Curt Gowdy State Park near Cheyenne, WY features 4- and 8-mile trail routes climbing from about 7,300 to 7,700 feet through aspens, pines, reservoirs and granite formations.

Experience high alpine mountain running at Grand Targhee with a 7.1 mile course featuring over 2,200 feet of vertical gain and summits reaching nearly 10,000 feet.

Run the Red Desert is a trail race on September 26, 2026 in Wyoming’s Northern Red Desert offering 30K and 50K courses from Whitehorse Creek to South Pass City. It coincides with Wyoming Public Lands Day and highlights conservation of the l..