Montana
Montana Trail Running Calendar 2026-2027
Explore the best trail runs in Montana for 2026-2027! Our updated list features 42 exciting trail runs across the region. Find your next trail run in Montana below and join the trail community at these great events!
October 2026
Missoula trail races on October 18 2026 featuring a 50K with about 8,000 feet elevation gain and a 25K on the House of Sky ridgeline, shuttle start for the 25K and chip timing.
A Halloween evening 5K and 1-mile run at Arrowstone Park in Deer Lodge, MT, with costumes encouraged and leashed dogs welcome.
A Halloween-themed untimed run/walk at Deaconess Park with 5K and 1-mile courses, flag-stealing zombies, participant medals, and proceeds for Bullhook CHC programs.
A cross country team meet in Billings featuring separate men’s and women’s 5K races across age categories and a traveling trophy for the winning team.
Community fundraiser at Thompson Falls Power Park with a 5K and 1 mile fun run, race and costume prizes, and proceeds benefiting local trail maintenance.
November 2026
A 15K trail race on Mount Jumbo with on-course aid, participant swag including a collectible dog tag, a limited virtual option, and proceeds benefiting Five Valleys Land Trust.
December 2026
A Billings winter race series with staggered predicted-time starts, four distances from 4K to 10K, points scoring, and cash prizes for top finishers.
A capped 10K classic ski race on December 19, 2026 at the Chief Joseph Trails near Lost Trail Pass with limited parking and a 70-participant cap.
January 2027
Nordic ski event on January 9, 2027 offering classic and skate races from 1 km to 20 km, including a Viking Challenge and youth cookie scramble.
A Billings winter race series with staggered predicted-time starts, four distances from 4K to 10K, points scoring, and cash prizes for top finishers.
Classic cross-country races at Lubrecht Experimental Forest with 1 km, 4 km and 10 km events, a group dance competition, free on-site waxing, and a post-race chili potluck.
February 2027
A winter lap-based endurance event on Mt Sentinel offering 3, 6, 12 and 24 hour formats to raise funds for Climate Smart Missoula and local air quality projects.
Weekend cross-country ski races at Pattee Canyon in Missoula featuring 1 km, 5 km and 10 km events plus a 10 km skiathlon, on-site waxing and a post-race chili potluck.
Timed mountain lap event on Drinking Horse Mountain with 3, 6, and 12 hour options that raises funds for the Wildland Firefighter Foundation.
A Billings winter race series with staggered predicted-time starts, four distances from 4K to 10K, points scoring, and cash prizes for top finishers.
March 2027
Half marathon and 9K along the Great Northern Trail between Kila and downtown Kalispell with a mandatory shuttle, timed bibs, and post-race St. Patrick's festivities.
April 2027
A Billings winter race series with staggered predicted-time starts, four distances from 4K to 10K, points scoring, and cash prizes for top finishers.
June 2027
Trail races on the Beaverhead Trails High Trails near Dillon, MT, featuring a 15K, 5K, kids 5K and a 1-mile fundraiser. Courses are off-pavement with extensive single-track, significant climbing and valley views.
Trail race day near the Clark Fork River featuring the Pengelly Double Dip with 3,400 ft climb and the Bob Hayes Single Dip 10K with a steep opening mile; virtual options offered.