Trail Running calendar near Island Park 2026-2027

We have found 19 Trailruns within 80 miles of Island Park. See below where and when you can find the races.

Experience high elevation trail running at Grand Targhee with distances ranging from a kids loop to a 50K ultramarathon. Run through wildflower meadows and aspen glades with views of the Teton Range.

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.

Experience the Montana wilderness through a series of certified trail races in 2026. Choose from distances ranging from 5K to 50K with events held in West Yellowstone, Seeley Lake, and Butte.

A trail running event in West Yellowstone, MT on July 11, 2026, organized by Wolf Pack Adventures. Multiple distances from 5K to 50K are offered with published entry fees and online registration ending July 11, 2026.

A multi-distance trail race in Big Sky, Montana on July 12, 2026 centered at Big Sky Events Arena. Courses range from about 15 mile with roughly 2100 feet of climbing to 6.2 mile and 3.1 mile options through Uplands and Hummocks.

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 uphill race in Jackson, Wyoming that climbs 1,535 vertical feet from Phil Baux Park to the Gondola summit. Entry includes drop bag support, summit awards when weather allows, and a gondola ride down.

August 2026

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.

The Farm Life 5k Trail Run will take place in Idaho Falls on Saturday 1 August 2026. You can run 5 kilometers.

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 trail race at Harriman State Park, Island Park ID on August 15, 2026 with 1k, 10k, 25k and 50k options, scenic forest and meadow courses, a cupless policy and included post-race meal.

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..

September 2026

A three-day mountain running event at Big Sky Resort in Big Sky, Montana on September 11 to 13, 2026, featuring distances from a 1 km kids run to a 50.6-mile Trifecta; registration opens January 6, 2026.

Trail races and a kids run at Eagle Creek Campground near Yellowstone on 12 September 2026. Courses include a 9k with 1000 feet of climb, a 5k with 400 feet of climb, and an untimed 5k walk.

An off-road 18.2 mile trail race with 2,609 ft of climbing through Paradise Valley and Emigrant Gulch, featuring creek crossings, three aid stations, marked technical terrain, and a finish at Chico Hot Springs.

October 2026

A playful 5 km loop through Nature Park and Eagle Park where volunteers acting as zombies try to steal runners' flags. A separate 1 mile costume run has no zombies and suits participants who prefer a gentler experience.

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.

January 2027

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.

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