Trail Running calendar near Big Sky 2026-2027

The Diamond City Mountain Relay will take place in Townsend from Friday 10 July 2026 to Sunday 12 July 2026. You can run 215 miles.

A mountain trail event near Bozeman, Montana, on July 11, 2026, offering 25-mile and 50-mile courses across alpine ridgelines with limited support and suggested community donations.

A multi day trail running series in Montana during summer 2026 with 5K to 50K distances plus half and full marathons at West Yellowstone, Seeley Lake and near Butte. Participants receive a custom medal, bib and aid station support.

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.

A July 18, 2026 Bozeman event offering a **10-mile** trail loop with 2,838 feet of climbing and a **5 km** rolling dirt road fun run, plus a post-race BBQ, beer, and raffle prizes.

Trail race near Butte, Montana on the Continental Divide offering 25K and 50K routes with historic railroad sections, marked and chip timed course, aid stations, finish refreshments, and participant medals and race items.

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 trail race weekend in Cooke City, Montana with 50k, 30k and an 80K option set among mountain scenery and historic mining sites on 8/8 to 8/9/2026.

A 5K running race at Bridger Brewing in Bozeman on August 12, 2026, presented by the Bozeman Distance Project 501(c)3. Registration runs July 8 to August 12 with a $10 fee.

A remote roughly 20 mile ridge trail race near Bozeman, Montana, run by volunteers with a lottery limited field. The route is technical and exposed; aid stations are volunteer staffed and participants must carry a water vessel.

A multi-distance trail event in Island Park, ID featuring forest and meadow courses with 1k, 10k, 25k and 50k options, cupless aid stations, included post-race food and limited entries with a possible waitlist.

A ranch-based running event in Harrison, Montana offering a 1K calf run, 5K, 10K, Tough Udder obstacles and a virtual option, with on-course water stations and event swag.

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.

Experience a historic re-enactment through the rugged trails of Missouri Headwaters State Park. This unique 7.5 mile run features deep mud, river crossings, and wild Montana terrain for a limited field of 300 participants.

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.

Timed running event at Gallatin Valley Regional Park in Bozeman with 24-hour, 12-hour, and 4-hour options on a 1.5-mile loop. Crew support, one aid station with dietary options, limited parking, and awards for top finishers.

Trail races of 20 km, 10 km, 5 km and a 1 km kids race take place at Crosscut Mountain Sports Center near Bozeman on September 27, 2026. The Bobcat 5 km directs proceeds to the Montana State University Nordic Ski Team.

Trail races on the Beaverhead Trails High Trails near Dillon, MT, featuring a 15K, 5K, kids 5K and a 1-mile fundraiser. Courses are off-pavement with extensive single-track, significant climbing and valley views.