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Half Marathon Races in Montana

28 upcoming Half Marathon races across Montana. Run This events are listed first — pick a city below to narrow it down.

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Cities in MontanaBozemanWest Yellowstone

28 races

Fri, Aug 7, 2026

Smelter City Scamper

Anaconda, MT

OutsideMarathon10K5K

Fri, Aug 14, 2026

WICKED FAST MARATHON & HALF MARATHON MONTANA

Livingston, MT

OutsideMarathon

Sat, Aug 15, 2026

Nitty Gritty Off Road Race

Red Lodge, MT

OutsideMarathon4.3 mi

Fri, Aug 21, 2026

18th Annual Canine Classic at Paws Up

Greenough, MT

OutsideMarathon5.0 mi2.0 mi

Fri, Aug 28, 2026

Bike for Better Tomorrows

Bozeman, MT

Outside37.0 mi22.0 mi12.5 mi5.5 mi

Mon, Aug 31, 2026

Mntwi l Nłʔay Virtual Half Marathon

Missoula, MT

OutsideMarathon

Sat, Sep 5, 2026

AIDSPIRIT USA Marathon

Harlowton, MT

OutsideMarathon10K5K

Thu, Sep 10, 2026

The Rut Mountain Runs

Big Sky, MT

Outside50.6 mi30.3 mi17.8 mi13.3 mi

Sat, Sep 12, 2026

Bozeman Half Marathon & 10K

Bozeman, MT

OutsideMarathon10K

Sat, Sep 19, 2026

Montana Marathon

Billings, MT

OutsideMarathon10K5K

Fri, Sep 25, 2026

Hiawatha Fall Trail Run

Taft, MT

OutsideMarathon10K

Fri, Sep 25, 2026

Golden Gravel Grinder

Virginia City, MT

Outside85.0 mi40.0 miMarathon

Sat, Sep 26, 2026

Timberline Trail Run

Bozeman, MT

Outside12.4 mi10K5K1000 m

Fri, Oct 2, 2026

Whitefish Trail Blazer

Whitefish, MT

Outside31.1 miMarathon6.8 mi3.4 mi

Fri, Oct 2, 2026

Blacktail Climb

Lakeside, MT

Outside13.5 mi7.0 mi

Sat, Oct 3, 2026

Back Roads Half & 10k

Red Lodge, MT

OutsideMarathon10K

Sat, Oct 17, 2026

Just for the Helena of It

Helena, MT

OutsideMarathon10K5K1 mile

Fri, Jan 15, 2027

Sorry 'Bout That Half Marathon and Team Relay

Polson, MT

OutsideMarathon

Fri, Feb 26, 2027

Snow Joke Half Marathon

Seeley Lake, MT

OutsideMarathon

Fri, May 21, 2027

Whitefish Marathon, Half Marathon & 5K Presented by Hammer Nutrition

Whitefish, MT

OutsideMarathon5K

Fri, Jun 25, 2027

Missoula Marathon Weekend of Events

Missoula, MT

Outside5K1.2 miMarathon

Fri, Jul 9, 2027

Yellowstone Park Trail Races

West Yellowstone, MT

OutsideMarathon31.1 mi15.5 mi10K

Fri, Jul 9, 2027

Montana Trail Series

West Yellowstone, MT

OutsideMarathon31.1 mi15.5 mi10K

Fri, Jul 9, 2027

Madison Marathon

Ennis, MT

OutsideMarathon

Sat, Jul 10, 2027

Big Sky Marathon

Ennis, MT

OutsideMarathon

Fri, Jul 16, 2027

Bob Marshall Trail Races

Seeley Lake, MT

Outside31.1 mi15.5 miMarathon10K

Fri, Jul 30, 2027

Yellowstone Park Trail Races

West Yellowstone, MT

OutsideMarathon10K5K31.1 mi

Fri, Sep 24, 2027

The Divide Trail Race

Butte, MT

Outside31.1 mi15.5 miMarathon

Half Marathon races by city in Montana

Bozeman3West Yellowstone3