Montana Half Marathon Calendar 2025-2026

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Explore the best half marathons in Montana for 2025-2026! Our updated list features 22 exciting races across the region. Find your next race in Montana below and join the running community at these great events!

October 2025
Oct
5
Sunday

Back Roads Half

10 km 13 mi
Oct
19
Sunday

Just for the Helena of It

5 km 10 km 13 mi
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