Trail Running Calendar Montana 2026-2027

A steep 1.6 mile trail race up Mount Sentinel in Missoula with 1,970 feet of climbing, a free kids M Run, chip timing and postrace ice cream. The event is limited to 250 runners.

A multi-race Spartan obstacle weekend in Bigfork, Montana, held in May 2026 with Sprint, Super, Beast, Ultra and kids courses. Courses use high-altitude terrain and offer team registration and service member discounts.

Trail races and walks in Helena, Montana across South Hills and Mount Helena trails, with distances from 5K to 50K. The event began in 2000 and raises funds for Prickly Pear Land Trust.

Prairie Goat Ultra at Acton Recreation Area on May 9-10, 2026 features timed bike events on an approximate 8 mile loop and running events on 4 mile single track loops. Races are self timed and primitive camping is available.

A Missoula trail weekend on June 7 with a 13.1-mile mountain half and a 6.2-mile 10K, cupless aid stations, capped fields, and virtual options running May 14 to June 23.

Trail races at Marshall Mountain in Missoula in May include team and solo 25K formats plus a 5 mile option. Courses use new looped trails and include notable climbing, with a post-race brunch and vendor village.

A self-supported **50K** trail race in the Scratchgravel Hills near Helena, MT on May 23, 2026, featuring technical rocky trails, single track and jeep roads; water at aid stations and drop-bag coordination are provided.

A community trail run on Mount Dean Stone paired with hands on bumble bee field training for the Montana Bumble Bee Atlas. Equipment is provided and youth must attend with an accompanying adult.

Experience Montana landscapes at the Billings Skyline Races. Run along the sandstone Rimrocks and through the shaded Alkali Creek Trail in a half marathon or 30K event ending at Two Moon Park.

Experience the sagebrush hills of Montana at the Pronghorn Pursuit Trail Run. Choose from 15k, 5k, or 1 mile distances featuring technical single-track trails and scenic views of the Beaverhead River Valley.

Trail races along the Route of the Hiawatha near Taft, Montana on June 7, 2026, featuring an out-and-back course through forests and historic train tunnels. Distances range from 10K to 50K and a virtual option is available.

Mountain to Meadow is a half marathon and 10k at Lolo Pass featuring gravel and trail terrain, scenic mountain and meadow views, aid stations, chip timing, and a post-race BBQ with Big Sky Brewery beverage.

A 12 hour night trail run on singletrack in Helena’s South Hills, limited to 75 runners. Participants aim to complete as many full figure 8 loops as possible on the Mount Ascension and Rodney Ridge trails.

Experience a scenic 14k trail race along the Continental Divide National Scenic Trail in Montana. This single track event features rock formations and mountain vistas with proceeds supporting local trail maintenance and youth running.

Experience the scenic trails of Herron Park in Kalispell with a half marathon or shorter trail run. Support local trail maintenance while participating in one of the region's established annual racing events.

Timed ruck and hike events in Neihart, Montana, on June 20, 2026, include six hour and three hour rucks for adults and a one hour kids ruck; proceeds support a scholarship for Montana graduates pursuing technical or trade training.

Follow historic railroad grades from Mullan to St. Regis on a course featuring train trestles and river views. Choose from distances ranging from 5k to 50 miles with post race festivities at the park.

A mountain trail ultramarathon held from Middle Cottonwood Trailhead with 30K and 55K options on 100% trails, large vertical gain, minimal aid, drop bag support, and a 130-runner cap; finishers receive an Old Gabe hat.

Experience a point to point mountain marathon on the Foy's to Blacktail Trail system in Montana. This limited entry event supports local trail maintenance and features a scenic course through wildlife habitat.

A 100 mile loop in and around Butte, Montana on June 26-27, 2026, featuring about 63 miles on the Continental Divide Trail and nearly 14,000 feet of vertical gain and loss. The field is capped at 150 runners and includes a nonbinary divisio..