Trail Running Calendar Wyoming 2026-2027

A 5 Km out and back run/walk on Casper Mountain Road Trail near Casper College on February 14, 2026. Prizes include first overall, oldest and youngest runners, and cutest couple; registration and waivers are available at the YMCA.

A multi distance trail event at the Cody Archery Range featuring 1 mile, 6 mile, 16 mile and a 50K ultramarathon. Courses are marked with cupless aid stations, volunteers on course, and finish line beer and burgers for registrants.

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.

Trail races near Laramie, WY, on rugged single- and two-track terrain with **10K** and **25K** options. The event is cupless, offers aid stations and awards, and donates proceeds to Pilot Hill Inc.

Trail races in Sinks Canyon near Lander, WY offering 50 km, 18 km, 6 km and a Kids' 1 km with river corridors, ridge traverses, singletrack, aid stations, and finisher awards.

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..

Grand Targhee Wildflower Run takes place July 4 and 5, 2026 with trail races from a 1K kids loop to a 50K mountain course. The event features marked aid stations, a cupless policy, finisher awards and cash prizes for top 50K finishers.

Two days of mountain trail races in Teton Village on July 11 and 12, 2026, featuring 50K, 30K and 15K courses with alpine views, abundant wildflowers, and waffles provided for 50K and 30K runners.

Explore Wyoming's Bear River trails in Evanston. Choose from 10k, half marathon, or 17-mile courses along the river and through state park scenery. All finishers receive a T-shirt and award.

Trail event on Casper Mountain with an 8-mile two-lap race and a Backyard Ultra running a 4.17-mile loop hourly; the loop is about 4.15–4.20 miles with 450 feet gain on forested single-track at 7,800–8,100 ft.

A pair of trail races in Afton, Wyoming on August 1, 2026, run on rugged Wilderness terrain. The event features 50k and 31k courses, starts and finishes at Cottonwood Lake and supports Star Valley High School track and cross country teams.

A 108 miles point to point trail race in the Wyoming Range with about 24,000 feet of climbing and a 48 hour cutoff. The route follows high mountain trails with long gaps between aid stations and variable high elevation conditions.

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.

A marathon and half marathon on the gravel Medicine Bow Rail Trail near Lake Owen, Wyoming, held at high elevation. The timed races are staffed with aid stations and support trail upkeep.

A 7.1 mile mountain trail race at Grand Targhee on August 29, 2026, with 2,212 feet of vertical gain, technical alpine sections and aid stations. The event is capped at 500 runners and awards cash and gear in Sport, Expert and Pro divisions..

Trail races across Wyoming’s Red Desert with **50K** and **30K** point-to-point courses from Whitehorse Creek Overlook into the historic South Pass City, featuring river crossings, granite domes, and views of Oregon Buttes.