Montana
Montana Trail Running Calendar 2026-2027
Explore the best trail runs in Montana for 2026-2027! Our updated list features 35 exciting trail runs across the region. Find your next trail run in Montana below and join the trail community at these great events!
August 2026
The Augúst, Montana's second oldest footrace, holds its 58th running in Helena on August 20, 2026. A 5K trail race presented as a minimalist fundraiser for local high school cross-country teams.
A timed ultrarunning event in Missoula with 24 hour solo and relay plus 12, 6 and 3 hour solo races on August 22 to 23, 2026.
September 2026
Experience a fast downhill race through the scenic Little Belt Mountains to historic Harlowton. This charity event features a smooth gravel course with multiple distances and a finish line celebration at a local brewery.
A roughly 5K trail race at Dover Park in Billings, Montana, serving as the final race of the Free 3 series. The course runs on dirt trails, includes park views, and a potluck follows; the event is free for Yellowstone Rim Runners.
Mountain running event in Big Sky, Montana each September, with races from a 1K Runt Run to a 52.5 miles Trifecta and significant vertical gain.
Trail races and a kids run at Eagle Creek Campground near Yellowstone on 12 September 2026. Courses include a 9k with 1000 feet of climb, a 5k with 400 feet of climb, and an untimed 5k walk.
A community running event at Pompeys Pillar on September 13, 2026 featuring a 5K trail race and a 1 mile run or walk for ages 5 to 14, with entry items, snacks, and prizes included.
A rugged trail race at Missouri Headwaters State Park on September 19, 2026 covering about 7 to 7.5 miles with water crossings, a 300 runner limit, and a postrace barbecue.
A first annual 4.06K fun run through Playfair Park and midtown Missoula with a tailgate themed finish featuring fried chicken and beer. Registration opens June 16, 2026 and the fee is $35.
Trail races of 14K, 25K and 50K around the McMaster Hills near Helena MT on Sept 19 2026; a free trial event with limited course markings and basic aid.
An off-road 18.2 mile trail race with 2,609 ft of climbing through Paradise Valley and Emigrant Gulch, featuring creek crossings, three aid stations, marked technical terrain, and a finish at Chico Hot Springs.
Timed running events at Gallatin Valley Regional Park in Bozeman offer 4 hour, 12 hour and 24 hour options on a flat 1.5 mile loop with a stocked aid station and free race photos.
A 9 km (5.6 miles) trail race in Helena, Montana, with roughly 1,300 feet of elevation change and more than 4 miles of single-track. The 50th edition climbs Mount Helena and returns to Last Chance Gulch with mountain and city views.
Multiple obstacle course categories at Washington-Grizzly Stadium in Missoula, including a double 10k, 5k options, a 3k, kids and All Abilities races with food trucks and teams.
Trail races on the Route of the Hiawatha in Taft, MT, with marathon, half, 10K and a virtual option on September 26, 2026.
Trail running in Bridger Canyon near Bozeman on September 27, 2026 with 20 km, 10 km, 5 km and a kids run; 5 km proceeds benefit the MSU Nordic team.
October 2026
Experience the beauty of Northwest Montana with a variety of trail races ranging from a family fun run to a technical 50k ultramarathon. Run through scenic forests and lakes while supporting the local trail system.
A point to point trail race of about 10.5 miles through Lolo National Forest along the Clark Fork River on 10 April 2026. The finish is at Quinn's Hot Springs Resort with post-race food, drinks and hot pool access; dogs are not allowed.
Experience an out and back ultramarathon along the North Fork of the Flathead River near Glacier National Park. This event features gravel roads with 2300 feet of elevation gain and stunning views of the Northern Rockies.