Trail Running Calendar Montana 2026-2027

We have found 53 Trailruns in Montana. Check below where and when you can find the races.

Take on Mt Sentinel in Missoula with timed 3, 6, 12 and 24 hour laps to summit as many times as you can. Fundraising supports Climate Smart Missoula and local air quality while winter safety rules may change or cancel the event.

Catch Me If You Can! is a winter race series in Billings with four races from a brisk 4K to a 10K at local parks. Staggered starts mean faster runners chase others to the finish and hot drinks await every finisher.

Join the Red Lodge Randonnee Races Feb 27 and 28 at Red Lodge Mountain for ski mountaineering excitement in uphill and backcountry touring formats. Choose a night Vertical, a Short intro or the full Long course and race for prizes and gifts..

March 2026

Six cross-country ski races run concurrently on groomed Rendezvous Ski Trails in West Yellowstone on March 7, 2026, with distances from 2K to 50K and entry limited to 1,000 participants.

Run the scenic Great Northern Trail from Kila to downtown Kalispell in the Lucky Hare Half Marathon, or tackle the Lucky 9K. Celebrate at Brannigan's post race beer garden with music, raffles, and finisher awards.

A morning fun run in Bozeman tied to the American Indian Council powwow on March 28, 2026, offering a 5k and a 1 mile Fun Run/Walk at Brick Breeden south entrance.

April 2026

Catch Me If You Can! is a winter race series in Billings with four races from a brisk 4K to a 10K at local parks. Staggered starts mean faster runners chase others to the finish and hot drinks await every finisher.

Run scenic singletrack at the Bitterroot Runoff Trail Runs on April 18, 2026 at Rossignol Ranch near Lolo, Montana with 5k, 5 mile and 10 mile options climbing up to 2,025 feet. Finish with postrace brunch, beer, massage and trail festival.

Join the Montana Brewery Running Series for a festive 5k at Blackfoot River Brewing in Helena where runners, walkers, and joggers celebrate at the finish with craft beer and community. Proceeds support local nonprofits and ticket options in..

A 12 km single-track trail race at Lewis and Clark Caverns State Park featuring significant elevation change, two cupless aid stations, chip timing and post-race brunch. Runners receive a custom shirt and must follow Leave No Trace rules.

May 2026

A short, steep Missoula trail race finishing on Mount Sentinel's summit, limited to 250 runners and timed with chips; includes a kids climb, age-group prizes, cash awards, and finish-line refreshments.

Don't Fence Me In Trail Run on May 9, 2026 in Helena, Montana invites runners and walkers to tackle distances from a 50K to a 5K dog walk across scenic South Hills ridgelines including Mt Helena and Mt Ascension. Proceeds support Prickly Pe..

UTMB Index

Run scenic Marshall Mountain in Missoula with a team relay, solo 25K, 5 mile race and kids run. Expect rugged climbs, chip timing and a festive finish with pancake brunch, vendors and fundraising for Friends of Marshall Mountain.

Run the Billings Skyline Races for a scenic challenge along the Rimrocks and Skyline Trail. Choose a rolling 13.1 mile loop or a longer 30K that adds elevation, with panoramic views of the Yellowstone Valley and Beartooth Mountains.

June 2026

Trail races in Dillon, Montana on June 6, 2026 include a 15k, 5k, kid's 5k and one mile fun run. Courses are off pavement through sagebrush hills with extensive single track and significant climbing.

A trail running event on the Route of the Hiawatha in Taft, MT on June 7, 2026, offering distances from 10K to 50K plus a virtual run and support for Wallace High School.

Run from mountain to meadow at Lolo Pass, Montana, choosing a half marathon or scenic 10K across gravel roads and forest trails with sweeping Bitterroot views. Finishers get a tank top and a post race BBQ to celebrate.

Night time, 12 hour trail event on Helena's South Hills where runners repeat a 100% singletrack figure 8 loop of 11.57 miles with 2,645 feet of elevation gain. Field is limited to 75 runners and trails may have wildlife and rocky sections.

A 14 km trail race along the Continental Divide near Butte on June 20, 2026, offering scenic mountain views and supporting trail work, local youth running programs, and emergency search and rescue funding.

Trail races at Herron Park in Kalispell on June 20 2026 include a half marathon, 10K and 5K, with proceeds supporting the Foys to Blacktail Trails and a kids race and post‑race community activities.