Half Marathons in Montana 2026 | Upcoming Races & Dates

There are 7 half marathons in Montana scheduled for 2026. The next is the Bozeman Half Marathon & 10K in Bozeman on September 13. Montana half marathons run primarily September through July.

Disco PBR

Sat, Sep 12 · Anaconda, MT Anaconda

Disco PBR

From $75 Open Closing Soon

Bozeman Half Marathon & 10K

Sun, Sep 13 · Bozeman, MT Bozeman

10KHalf Marathon

From $50 Open Closing Soon

Back Roads Half & 10k

Sun, Oct 4 · Red Lodge, MT Red Lodge

10kHalf Marathon

From $30 Open Closing Soon

Just for the Helena of It

Sun, Oct 18 · Helena, MT Helena

Kids Mini MileVirtual 5K5K +4

From $35 Open 50 spots left

Sorry 'Bout That Half Marathon and Team Relay

Sat, Jan 16 · Polson, MT Polson

1/2 Marathon3 Person Team Relay

From $35 Open Closing Soon

Seeley Lake Biathlon

Sat, Feb 6 · Seeley Lake, MT Seeley Lake

3K Biathlon - Adult3 K Biathlon - Youth7.5K Biathlon - Youth +2

From $25 Closed 25 spots left

Montana Women's Triathlon

Sun, Jul 18 · Helena, MT Helena

TeamU19 TeamMontana Women's Triathlon +5

From $45 Closed 6 spots left

Half Marathons in Montana — 2026

Disco PBR

Bozeman Half Marathon & 10K

Back Roads Half & 10k

Just for the Helena of It

Sorry 'Bout That Half Marathon and Team Relay

Seeley Lake Biathlon

Montana Women's Triathlon

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