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Montana Half Marathon Calendar 2025-2026

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Explore the best half marathons in Montana for 2025-2026! Our updated list features 23 exciting races across the region. Find your next race in Montana below and join the running community at these great events!

September 2026
Sep
6
Su

Aidspirit USA Marathon

Trail Run 5 km 10 km Half Marathon Marathon
Sep
11-13
Fr - Su

The Rut Mountain Runs

Trail Run 3 mi 11 km ... 31 mi 53 mi
Sep
13
Su

Bozeman Half Marathon

10 km Half Marathon
Sep
20
Su

Montana Marathon

3 mi 6 mi 13 mi 26 mi