Trail Running Calendar Montana 2026-2027

We have found 54 Trailruns in Montana. Check below where and when you can find the races.

The Aidspirit USA Marathon features a fast, scenic route from the mountains to historic Harlowton on compacted gravel. All proceeds support children's care and education in Uganda, and finishers enjoy a local craft beer. Distances range fro..

A three-day mountain running event at Big Sky Resort, Montana, offering trail distances from a kids 1K to a 50K and a Lone Peak Vertical Kilometer, with several events open to ages 16 and older.

The Rock the Run event features a 5k and a 1-mile fun run/walk at Pompey's Pillar National Monument. The 5k is RRCA-qualified, and registration supports the monument's preservation. It's a community event set for a September morning in Bill..

A roughly seven mile trail run at Missouri Headwaters State Park on September 19 2026 featuring rugged trails, two railroad crossings, and two final water crossings. Prizes and finish awards are offered plus a post race barbecue and live mu..

Event Details The Yellowstone Gateway 30K is a trail running event. The Course The course is just over 18 miles (approximately 30K) long. It features a total climb of 2,609 feet and a descent of 2,366 feet. The route is entirely off-road, u..

A 9 kilometer out and back in Helena that climbs about 1,300 feet to the top of Mount Helena and returns to Last Chance Gulch, combining road sections and single track trails with panoramic views of the surrounding valleys and mountains.

Trail races on the Route of the Hiawatha in Taft, Montana, offering marathon, half marathon, 10K and a virtual option amid forests and historic train tunnels. The event supports Wallace High School club and sports teams.

October 2026

A weekend of Montana trail running benefiting the Whitefish Trail. Saturday features a challenging 50k ultramarathon with big mountain views, while Sunday offers shorter family-friendly distances. All participants get race swag and enjoy a..

A 10.6 mile point to point trail race through Lolo National Forest along the Clark Fork River, held October 4, 2026. Participants receive timing, a shirt and drop bag and are shuttled to Quinn's Hot Springs for post race food and a soak.

The Le Grizz Ultramarathon will take place in Olney on Saturday 10 October 2026. You can run between 5 and 50 miles.

Join the Montana Brewery Running Series for a festive 5k at Mt Ascension Gastropub in Helena on October 10, 2026, open to runners, joggers, and walkers of all paces. Celebrate at the finish with a brewpub party and great local vibes.

Montana Cup is a team based cross country meet in Billings, Montana featuring men's and women's age divisions, residency based teams, and a 5k to 8k course over rough terrain. Teams compete for a traveling trophy and individual awards.