Trail Running calendar near Bozeman 2026-2027

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.

Trail out and back races near Kading Campground with 15 km and 30 km options, creek crossings and mountain views. Post-race food, beverages and prizes are available.

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.

A 100 mile trail race through the Crazy Mountain Range from Wilsall to Lennep, Montana on July 24-25, 2026, passing Apsaalooke lands, jagged cliffs, scree fields, and high alpine lakes with live tracking and family ranch host sites.

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.

Mountain trail races in the Elkhorn Mountains near Helena, Montana, offering 50 Mile, 50K and 13.1 Mile courses on remote single track with significant elevation gain and multiple aid stations.

ROO Last One Standing is a backyard ultra near Clancy, Montana where runners run repeated 4.2 mile loops each hour until one runner remains. The last runner standing wins a $10,000 prize.

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.

The Augúst, Montana's second oldest footrace, holds its 58th running in Helena on August 20, 2026. A 5K trail race presented as a minimalist fundraiser for local high school cross-country teams.

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.

Experience a fast downhill race through the scenic Little Belt Mountains to historic Harlowton. This charity event features a smooth gravel course with multiple distances and a finish line celebration at a local brewery.

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.

A free trial trail event in Helena, MT offering 14K, 25K and 50K options on McMaster Hills trails with river and mountain views. Minimal course markings and a main aid station at McMaster Hills East Trailhead.

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.

A timed running event at Gallatin Valley Regional Park in Bozeman offering 24 hour, 12 hour and 4 hour races on a 1.5 mile loop. The event includes crew access, an aid station with dietary options, limited parking and awards.