Trail Running Calendar Montana 2026-2027

A community fun run at MAP Brewing that supports local Gallatin Valley running clubs; $20 registration proceeds are split evenly among participating organizations. The loop course circles the pond and connects to Glen Lake Rotary Park trail..

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.

This Helena trail run on May 9, 2026, features races from 5K to 50K, plus hikes and a dog walk. It's a community event supporting the Prickly Pear Land Trust's conservation work. Enjoy trail running followed by a beer garden and live music.

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.

Explore the new trails of Marshall Mountain in Missoula with this spring trail running event. Choose from a challenging solo 25K, a fun team relay, or a shorter 5-mile race. The day features a community atmosphere with a post-race brunch an..

Swift Foot Trail Runs is a self supported 50K trail event on May 23, 2026 in the Scratchgravel Hills near Helena, MT. The course has minimal markings, aid station water, coordinated drop bags, and phone service at aid stations.

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.

Experience the scenic Montana Idaho border with a half marathon or 10k starting at Lolo Pass. Enjoy gravel road courses through forests and meadows followed by a celebratory post race BBQ.

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.

Join the Weir Warrior Memorial Ruck in Neihart, Montana on June 20, 2026 for timed ruck and hike options that test endurance and honor a lasting legacy. Enjoy post event food and drinks while supporting scholarships for Montana students.

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.