Half Marathons in Montana — 2026

There are 14 half marathons in Montana scheduled for 2026. The next is the Headwaters Bank Run in Three Forks on July 25. Montana half marathons run primarily July through February.

Wolf Run Series - RUNNING WOLF 2026

Sat, Jul 18 · Stanford, MT Stanford
One Mile Family Fun Run - Begins at 9:30 a.m. at 3117 Mtn View Rd5K - Must be at 3117 Mtn View Rd at 8:00 a.m. for bus ride to startHalf Marathon Bike - Must be at 3117 Mtn View Rd at 5:30 a.m. for bus ride to start +1
From $25 Closed
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Race Montana Triathlon and Duathlon 2026

Sat, Aug 22 · Great Falls, MT Great Falls
YOUTH Triathlon Short Course (50 METER SWIM / 1 MILE BIKE / 0.5 MILE RUN)ADULT AND YOUTH Team Triathlon Long Course (100 METER SWIM / 3 MILE BIKE / 1 MILE RUN)ADULT AND YOUTH Triathlon Long Course (100 METER SWIM / 3 MILE BIKE / 1 MILE RUN) +4
From $35 Open
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Seeley Lake Biathlon

Sat, Feb 6 · Seeley Lake, MT Seeley Lake
3 K Biathlon - Youth3K Biathlon - Adult7.5K Biathlon - Youth +2
From $25 Closed 25 spots left
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Seeley Lake 2 Helena 2 Anaconda 2 Greenough 1 Lakeside 1 Laurel 1 Missoula 1 Polson 1 Red Lodge 1 Stanford 1 Three Forks 1 Bozeman 1 Great Falls 1

All Montana Races

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