Trail Running calendar near Big Sky 2025-2026

We have found 9 Trailruns within 80 miles of Big Sky. See below where and when you can find the races.

Big Bear Stampede is a trail-running event at Eagle Creek Campground in Gardiner, Montana, near Yellowstone National Park. It offers a 5k and 9k trail race, a 5k walk (untimed), and a 1k Kids Run with obstacles. The courses provide spectacular views of Electric Peak and other Yellowstone peaks, with..

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 challenging races including a 50K, 28K, 21K, 11K, and the Lone Peak Vertical Kilometer, as well as a Trifecta challenge combining the 50K, 28K,..

UTMB Index

John Colter Run is a classic Bozeman-area trail race at Missouri Headwaters State Park, near Three Forks, Montana. The 7.5-mile course begins with 1.5 miles on a paved/gravel road, then 5.5 miles of rugged trails echoing Lewis and Clark. The route includes two railroad crossings—one under the tracks..

Yellowstone Gateway 30K is a challenging off-road race in Pray, Montana, covering just over 18 miles from Sage Lodge to Chico Hot Springs. The course features a 10-mile climb into Emigrant Gulch followed by an 8-mile downhill, with upper elevations an out-and-back segment and the rest point-to-point..

Montana Meltdown is a fixed-time ultramarathon held at Gallatin Valley Regional Park in Bozeman, Montana. Runners tackle a 1.5-mile loop for 24-, 12-, or 4-hour races, testing endurance and speed in a supportive, competitive atmosphere. The course features a single aid station roughly every 1.5 mile..

The Bobcat Trail Challenge at Crosscut is a trail running event held at the Crosscut Mountain Sports Center in Bozeman, Montana. The race features a challenging 5km cross-country ski loop course, with options to compete in 5k, 10k, or 20k distances. Participants can also join as part of a 2 or 4-per..

November 2025

The Montana Cup is a team-based cross-country running event held at Gallatin County Regional Park in Bozeman, Montana. It unites runners from across Montana’s regions to compete for a traveling trophy. The race features separate categories for men and women, divided by age groups (under and over 40)..

June 2026

The Pronghorn Pursuit Trail Run, held annually near Dillon, Montana, offers a scenic and challenging off-pavement experience through the sagebrush hills of the High Trails System. Participants can choose from a 15K trail run featuring 90% single-track with 2,400 feet of climbing, a 5K trail run with..

Copper Kings 100 is a 100-mile ultramarathon in and around Butte, Montana, on June 26-27, 2026. The loop starts and ends at the Belmont Mine and runs through Beaverhead-Deerlodge National Forest in Butte-Silver Bow and Jefferson counties, including about 63 miles on the Continental Divide Trail. The..