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Montana Race Guide: 5K, 10K, Half-Marathons, Marathons, Gravel Races, Trail Races, and More

Apr 20
9 min read

Updated: Sep 24

Runners and cyclists on a sunny forest road. Participants wear bright athletic gear. The mood is energetic, with tall trees lining the path.

Whether you're training for your first 5K or chasing a Boston qualifier, Montana's race calendar offers stunning courses, welcoming communities, and events that celebrate everything from winter's deep freeze to summer's long days. This comprehensive guide covers races across the state organized by season.


SPRING RACES (March - May)


MARCH

Run to the Pub - Bozeman

Mid-March | Half Marathon, 10K

Voted #2 half marathon in the U.S. by Runner's World.


Mid-March | 7 miles, 5K

Run Wild Missoula's St. Patrick's Day race through town.


Cloverfest - Columbia Falls

Mid-March | 5K

St. Patrick's themed run in the Flathead Valley.


Mid-March | 5K

Mining City St. Patrick's celebration run.


Multiple locations throughout spring | 5K

Fun runs starting and ending at breweries statewide. Includes:

- Frenchtown (Late March)

- Helena (Late March)


APRIL

Buttercup Run - Arlee

Early April | Half Marathon, 10K, 5K, 1 Mile

Annual spring fundraiser for Arlee Schools benefiting scholarships and mini-grants for teachers. 


Early April | 5K

Brewery run at Mountains Walking Brewery.


Run for the Trees - Missoula

Mid-April | 10K, 5K

Run Wild Missoula partners with Parks & Recreation for this community race.


Mid-April | 10K, 5K

Warrior-themed run in Montana's capital.


Mid-April | 10 miles, 5 miles

Spring trail running in the Bitterroot Mountains.


Late April | 5K

Community 5K in the Flathead Valley benefiting local causes.


Ice Breaker Road Race - Great Falls

Late April | 5 miles, 3 miles, 1 mile

Spring kickoff race in the Electric City.


YMCA Riverbank Run - Missoula

Late April | Distance varies

Missoula YMCA fundraiser along the Clark Fork River.


- Bonner-West Riverside (Early April)

- Stevensville (Mid-April)

- Helena (Mid-April)

- Missoula (Late April)


MAY

Early May | Gravel race


Early May | Trail race

Helena trail running event.


Early May | Women's race

Women-focused running event in Billings.


Mid-May | Half Marathon

Great Falls' spring half marathon.


Mid-May | Marathon, Half Marathon, 5K

One of Montana's three largest marathons with views of Glacier National Park.


Late May | Marathon, Half Marathon, Relay

Montana's most affordable marathon at just $5.


Montana Brewery Running Series - Kalispell (Early May)


SUMMER RACES (June - August)


JUNE

Buzzard Day Run - Glendive

Mid-June | Half Marathon

Eastern Montana half marathon.


Early June | Trail race

Iconic Missoula summer trail race with serious mountain scenery and "serious shenanigans." 


Governor's Cup - Helena

Mid-June | Half Marathon, 10K, 5K, Mile Fun Run, Kids Marathon

Established in 1974, this nearly 50-year Helena institution.


Early June | Marathon, Half Marathon, 5K

Northern Montana's marathon in the Hi-Line region.


Mid-June


Late June | Marathon, Half Marathon, 5K, Kids Marathon, 3-Mile Shakeout

Montana's premier running event with 2,100+ half marathon finishers. 


Late June | Marathon (trail)

Flathead Valley trail marathon.


JULY

Mid-July | Marathon

Marathon in the scenic Madison Valley.


Mid-July | Half Marathon, 5K

Multi-sport festival including running events.


Yellowstone Half Marathon & 5K - West Yellowstone

Mid-July | Half Marathon, 5K

Technical trail race through Custer Gallatin National Forest.


Headwaters Bank Run - Three Forks

Late July | Half Marathon

Where three rivers meet - Missouri Headwaters race.


- Missoula (Mid-July)

- Anaconda (Late July)


AUGUST

Early-August | 50K, Marathon, Half Marathon, 25K, 10K, 5K

Mixed-terrain races on the Rendezvous Ski Trails with rolling terrain through the forest.


Robert's Run - Hamilton

Early August | 10K, 5K, 1 Mile

A community run in memory of Robert Leonardi, benefiting the Play Like Robert Foundation and its work on pedestrian safety projects in Hamilton.


Early August | Triathlon, Duathlon

Beginner-friendly open water triathlon and duathlon on Seeley Lake, with swim, bike, and run legs on trail and dirt road.


Early August | 5K

Race through the streets of Ronan during Pioneer Days, with a straight-on view of the Mission Mountains.


Early August | Backyard Ultra

Last-runner-standing format: a 4.167-mile loop every hour until only one person is left.


Judith Mountain 10K - Lewistown

Early August | 10K

Central Montana trail race through the Judith Mountains.


Early August | 5K

Family-friendly color run raising funds in memory of Lexy.


Get Lost Gravel - Hamilton

Early August | 32, 47, and 82-mile routes (bike)

Gravel race through the Bitterroot Valley benefiting the Play Like Robert Foundation.


Early August | 5K, 10K

Longtime Bozeman race tied to the annual Sweet Pea Festival.


Early August | 5 Mile, 2 Mile

Established Billings race benefiting Off The Streets.


Snowbowl 15K - Missoula

Early August | 15K (trail)

Climbing trail race up and around Montana Snowbowl ski resort.


Early August | Half Marathon, 10K, 5K

Community race through Anaconda supporting food access and community health, held during Smeltermen's Day.


Early August | 5, 10, 20 miles

An off-trail, choose-your-own-adventure footrace up and around Blacktail Mountain.


Mid-August | Half Marathon (trail)

Trail half marathon in the Beartooths.


The Augúst - Helena

Mid-August | 5K

Montana's second-oldest footrace, a fundraiser for local high school cross-country teams.


Big Sky Biggie - Big Sky

Late August | 50, 30, and 15-mile courses (mountain bike)

Cross-country mountain bike race through Big Sky's singletrack and gravel roads.


Late August | Triathlon, Duathlon

18th annual sprint triathlon and duathlon at the Electric City Water Park.


Late August | 4 mile run

Long-running Missoula community race tied to the River City Roots Festival.


Late August | Half Marathon (trail)

Run with your dog at The Resort at Paws Up.


Yellowstone Hustle - Billings

Late August | 10K, 5K, 1 Mile

A race dedicated to movement, community, and making a difference. 


Late August | 5K

Bozeman 5K supporting Operation Juliet, a program that serves female veterans.


Big Sky Gravel - Red Lodge

Late August | 22, 50, and 100-mile routes (bike)

Gravel race and tour through the foothills of the Beartooth Mountains.


FALL RACES (September - November)


SEPTEMBER

September 1-30 | Half Marathon (virtual)

Run Wild Missoula virtual half marathon, with 100% of proceeds going to the Indigenous Ascent Coalition.


Early September | 10K, 5K, 2 Mile

Community run/walk promoting health and wellness among American Indian and Alaska Native communities in Billings.


Early September | 10K, 5K, 2 Mile

23rd annual Red Lodge race benefiting 67 local charities, free to enter, with over $4.9 million raised since it started.


Early September | 5K

Fun run starting and ending at Philipsburg Brewing.


Mid-September | 50K, 28K, 21K, 11K, VK

A 3-day mountain running celebration in Big Sky climbing Lone Peak.


Night Owl Run - Livingston

Mid-September | 4 miles

Gateway to Yellowstone evening race, with a free post-race BBQ at Miles Park Band Shell.


Mid-September | 10K, 5K, 1 Mile Fun Run

Breast cancer awareness run/walk through Lewistown, starting and ending at Frank Day Park.


Big Bear Stampede - Gardiner

Mid-September | 9K, 5K, Kids Run (trail)

Trail race outside Gardiner raising funds and awareness for mental health support in Park County.


Run For Her 5K/10K - Billings

Mid-September | 10K, 5K (also virtual)

Billings race along the Yellowstone River benefiting the HER Campaign, which supports survivors of human trafficking.


Mid-September | 5K

Fun run starting and ending at Bitter Root Brewing.


Mid-September | Half Marathon, 10K

Fall colors hit the Bridger Mountains for this Gallatin Valley race, benefiting the Bozeman Distance Project and local youth cross country.


Mid-September | 5K, 1 Mile

Small-town run at the historic Pompeys Pillar National Monument along the Yellowstone River.


Mid-September | 4.06K

First annual fun run through the Playfair Park trail system behind the YMCA, with a tailgate-themed finish line (fried chicken and beer).


Montana Marathon - Billings

Late September | Marathon, Half Marathon, 10K, 5K

Boston qualifier course with 1,000-foot net drop from Molt to downtown Billings.


Late September | 9K / 5.6 miles (trail)

50th anniversary of this Helena classic, climbing 1,300 feet up Mount Helena and back down to Last Chance Gulch.


Late September | 10K, 5K, 3K (obstacle course)

Obstacle race through Washington-Grizzly Stadium and the UM campus, with kids and all-abilities races too, benefiting Opportunity Resources Inc.


Late September | 5K

Fun run starting and ending at Tamarack Brewing.


Late September | 1-mile laps (2-hour window)

Women-only run/walk festival at Historical Fort Missoula, with glitter, a mimosa bar, and awards for best outfit, benefiting the SilverLining Foundation.


OCTOBER

Early October | 50K (Sat), Half Marathon, 10K, 5K, Family Fun Run (Sun) (also virtual)

A weekend of trail running at Whitefish Mountain Resort: Saturday's 50K summits Big Mountain, Sunday's shorter races explore the Whitefish Trail's Beaver Lakes area.


Early October | Marathon, Half Marathon, 50K, Ultra

Final Montana stop of a six-state touring race series through eastern Montana's Fallon County.


Helena Sun Run - Helena

Early October | 5K, 1 Mile

Clean-energy fundraiser run/walk benefiting a solar panel installation at Smith Elementary School this year.


Early October | Half Marathon, 10K

Fall scenic half marathon on rolling rural roads with Beartooth Mountain views.


Early October | 10.6 Mile (trail)

Point-to-point trail race through Lolo National Forest along the Clark Fork River, finishing with a shuttle to Quinn's Hot Springs Resort for a post-race soak.


Mid-October | 50 Mile, 50 Mile Relay, 15K, 5K

One of the oldest 50-mile foot races in the country (started 1982), run along the North Fork of the Flathead River just outside Glacier National Park.


Mid-October | 5K

Fun run starting and ending at MT Ascension Brewing.


Mid-October | 5K, Family Hero Mile

Evening glow run with bubbles and costumes, benefiting the Flathead School Snack Program.


Mid-October | 10K, 5K (also virtual)

Montana Farm Bureau's Young Farmers & Ranchers host this run through Dillon ranch country, benefiting local food pantries via the Montana Food Bank Network.


Mid-October | 5K, Kid's Run (also virtual)

Halloween-themed run benefiting Help Center, Inc.'s crisis support services.


Mid-October | 3 Mile, 2 Mile, 1 Mile

Costume race where you pick up a pumpkin at the turnaround and carry it to the finish, benefiting Bike Walk Montana.


Harvestfest 5K - Hungry Horse

Mid-October | 5K

Scenic out-and-back along the South Fork of the Flathead River, with a chili cook-off and pie-eating contest after.


Mid-October | 5K

Boos and Brews fun run starting and ending at Lolo Peak Brewing.


Mid-October | Half Marathon, 10K, 5K, Kids Mini Mile (also virtual)

Helena's fall race hosted by Treasure State Runners, benefiting The Friendship Center and Girls Thrive.


Mid-October | 50K, 25K

Unique trail races finishing in Missoula's University District, circling the Pattee Creek watershed with 8,000+ feet of elevation gain. 


Late October | 5K, Kids Run

A costume-friendly fall morning hosted by Run Wild Missoula and UM's Physical Therapy Student Association.


Montana Cup - Billings

Late October | 5K (Women's, Men's)

Team cross-country meet pitting Montana's seven largest towns against each other for a traveling trophy. Hosted this year by Yellowstone Rim Runners.


Late October | 5K, Kids Race

Halloween-themed race through Dillon, benefiting the Montana Events Foundation Scholarship for University of Montana Western students.


NOVEMBER

Early November | Trail race

The only organized trail race on Mt. Jumbo. 


Columbia Falls Brewery Run - Columbia Falls

Early November | 5K

Late-season brewery run in Flathead Valley.


Turkey Dash - Libby

Late November | Turkey Trot

Northwest Montana Thanksgiving tradition.


THANKSGIVING TURKEY TROTS


Thanksgiving morning | 8K, FREE Family 3K

Run Wild Missoula's annual tradition. The 3K is completely free and family-friendly.


Thanksgiving morning | 10K, 5K, 1.33 miles

Work off the turkey before you eat it in the Electric City.


Thanksgiving morning | 10K, 5K, 1K

Helena's Thanksgiving tradition with multiple distance options for the whole family.


WINTER RACES (December - February)

Mid-January | Half Marathon, Team Relay

Flathead Lake area half marathon with relay option.


February | Half Marathon (13.1 miles)

One of America's coldest outdoor races and a 47-year Montana tradition. 


Have a favorite Montana race we should add? We'd love to hear from you! Send us a note here or comment on Facebook or Instagram.

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