Trail Running Calendar Montana 2025-2026

The Jim Bridger Trail Run & Roller Ski Races take place in Bozeman, Montana, featuring a 10-mile trail run and a 5K run, along with roller ski sprint races at Crosscut Mountain Sports Center. The 10-mile course offers a scenic, challenging loop with significant elevation gain (2,838 ft), including c..

The Little Blackfoot is a trail running event near Elliston, Montana, offering 30K and 15K distances. Both races start at the Little Blackfoot Meadows trailhead near Kading Campground and follow an out-and-back course. Runners begin together, crossing two wooden bridges over a creek before reaching..

The Jim Bridger Trail Run, held annually in Bozeman, Montana, offers a classic trail running experience with two main events: a challenging 10-mile trail run and a 5k fun run. The 10-mile race features 2,838 feet of elevation gain through the scenic foothills of the Bridger Mountains, including clim..

The Crazy Mountain 100 is a challenging 100-mile ultramarathon held in Montana's rugged Crazy Mountain Range. Starting at Westling Ranch in Wilsall and finishing at Berg Ranch near the ghost town of Lennep, the point-to-point course features approximately 23,000 feet of vertical gain, reaching eleva..

The Yellowstone Trail Race, held near West Yellowstone, Montana, offers a scenic trail running experience just outside Yellowstone National Park. Participants can choose from three distances: 50K, 25K, and 10K, all starting and finishing at the Rendezvous Ski Trails within the Custer Gallatin Nation..

HURL Elkhorn is a challenging trail running event held in the rugged Elkhorn Mountains near Helena, Montana. It offers three race distances: a 50-mile ultra, a 50K, and a 13.1-mile half marathon, all featuring technical single-track trails, primitive jeep roads, and forest service roads with no pave..

The Copper City 24 Hour Race, held in Three Forks, Montana, is an endurance running event featuring 12- and 24-hour options. Participants run on a scenic, relatively flat one-mile double-track loop that offers views of multiple mountain ranges, city lights, and a farm setting with animals. The cours..

The 3rd Annual Swift Bear Trail Run takes place in Hays, Montana, featuring challenging trail races in the scenic Mission Canyon area. The event offers three distances: a 10 Mile run, a 20 Mile loop through mountainous terrain with track roads, gravel, and some pavement, and a newly added 50K ultram..

The Prospector's 50k | 30k is a trail running event held in Cooke City, Montana, typically in early August. Named after the rugged prospectors of the 1860s, the race offers two distances: a 50-kilometer and a 30-kilometer course. Participants experience stunning mountain views and pass historic mini..

The Divide Mountain Run, held in Babb, Montana near Glacier National Park, offers an exhilarating trail running experience with three race distances: 5k, 10k, and a challenging 21k that culminates in a summit scramble to the peak of Divide Mountain. Participants traverse rugged alpine terrain featur..

The Nitty Gritty Off Road Race is an annual trail running event held at Red Lodge Mountain Resort in Red Lodge, Montana. Featuring a challenging course with significant elevation gain, the race includes solo half marathon, full marathon, a hot lap of about 4.3 miles, and relay options for teams of 2..

The Augúst is Montana's second oldest footrace, held annually in Helena at the Spring Meadow Resources Pavilion. Celebrating its 57th running, this minimalist 5k trail race is known for its flat and fast course, attracting both youth (0-19) and adult (20+) runners. The event emphasizes tradition and..

The Dark Knight Trail Run, also known as the "Goats in the Dark 5k," is a unique night trail race held on Helena’s west side trails in Montana. This family-friendly event takes place in late August, offering runners pleasant nighttime temperatures and scenic sunset views before darkness sets in. The..

Goats In The Dark is a nighttime 5k trail race held in Helena, Montana, starting at LeGrande Cannon Blvd and Silverette St. The course features a scenic route along LeGrande Cannon Blvd to Tubbs Trailhead, then ascends switchbacks onto Mount Helena's western trails, including Swaney, Diretissima, an..

The AIDSPIRIT USA Marathon, held in Harlowton, Montana, is a scenic race starting in the Little Belt Mountains within Lewis & Clark National Forest and finishing in historic Harlowton. The event features a full marathon, half marathon, 10K run, and 5K fun run, all on compacted, calcium chloride-trea..

The Quitcherbitchen' Trail Run, held at Phipps Diamond X Park west of Billings, Montana, offers trail running and walking events for all skill levels. Participants can choose from 2, 4, 6, or 8-mile courses, each well-marked and supported by volunteers. The 2-mile course suits beginners, while longe..

The Big Bear Stampede is a trail running event held at Eagle Creek Campground in Gardiner, Montana, near Yellowstone National Park. Scheduled for September 6, 2025, it features 5k and 9k trail races with scenic views of Electric Peak and other Yellowstone peaks. The 9k course includes 1,000 feet of..

The Rut Mountain Runs is a three-day mountain running event held at Big Sky Resort in Montana, scheduled for September 12-14, 2025. It features a variety of race distances including a 50K, 28K, 21K, 11K, and the Lone Peak Vertical Kilometer, as well as a Kids 1K Runt Run. A special Trifecta challeng..

Rock the Run! 5K at Pompey's Pillar is a scenic running event held in Pompeys Pillar, Montana. The race offers a 5K course that caters to runners of all levels, from competitive athletes to those enjoying a casual jog. Participants experience the natural beauty of the area while running through pict..

The Mount Helena Run is an annual 9-kilometer (5.6-mile) trail race held in Helena, Montana, featuring a challenging course with 1,300 feet of elevation gain and loss. Starting on historic Last Chance Gulch in downtown Helena, the race transitions from urban streets to mountain trails within Mt. Hel..