Trail Running calendar near Teton County 2026-2027

An 18 km point to point trail run from Cache Creek to Game Creek in Bridger-Teton National Forest on July 25, 2026. The course is chip timed and offers an event shirt, finisher medal and limited shuttle support back to Snow King.

A 3-mile trail race in Jackson, WY, that gains 1,535 feet from Phil Baux Park to the gondola summit; runners get a free ride down and should carry their own hydration. Entry is $40 and registration before July 19 secures a t-shirt.

Trail races at Rendezvous Ski Trails near West Yellowstone Montana include marathon, half marathon, and 10K distances on Custer Gallatin National Forest trails. The event features chip timing, aid stations, and finisher medals.

A farm themed 5k at the Bonneville County Fair with a flat course, multiple water stations, finishers awards, and a free looped kids obstacle course.

Annual nonprofit uphill race at Jackson Hole Mountain Resort that climbs about 6.1 miles and 4,100 feet to the Aerial Tram summit via the Wildflower and Cirque Trails. Proceeds support the trails division of Friends of Pathways.

A multi-distance trail event in Harriman State Park near Island Park, ID, featuring a new Kid's 1k, scenic forest and meadow courses, on-course aid stations, cupless provisions, finishers medals and limited field with a waitlist.

Trail races at Turpin Meadow Ranch in Jackson Hole on August 22, 2026 benefit the John Wayne Cancer Foundation. Distances include 30K, a half marathon and an 8K, with a shirt, finisher mug and podium prizes.

Trail races at Grand Targhee on August 29, 2026 cover 7.1 miles with 2,212 feet of vertical gain across Sport, Expert, and Pro divisions plus a volunteer category. Per race prizes and season points are awarded and the field is capped at 500..

Zombie Mania on October 10, 2026 is a 5 km loop through Nature Park and Eagle Park where volunteers dressed as zombies try to steal runners' flag belts. A separate 1 mile costume run follows the same parks without zombies.

A Halloween morning trail race in Swan Valley, Idaho offering a 50K with 6,000 ft gain and a half marathon with 2,700 ft gain. The course runs on Fall Creek Road near Rainbow Valley Ranch and is close to Idaho Falls.

Test your endurance in Idaho Falls at this winter backyard ultra. Complete 4.167 miles every hour on a varied terrain course until only one runner remains at the Bonneville County Exhibition Hall.

Trail races on North Menan Butte in Menan, Idaho featuring volcanic terrain, caldera rim views and distances from 5k to 55k each April.