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Half Marathons in Montana

  1. Races by State
  2. Montana
  3. Half Marathon

Browse Half Marathon races in Montana, including upcoming races and races up to one year past their event date. Sort by highest rating or number of reviews to elevate the most popular races.

For each Half Marathon race, you’ll find key details, finisher ratings and reviews, photos, videos, related articles, race-day weather data and a link to register.

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Showing Half Marathons in Montana

Bob Marshall Trail 50K, 25K & 10K
Seeley Lake, MT | Jun 21, 2025

OVERALL

(0 ratings)

0
Ranch Run Half Marathon & 5K
Geraldine, MT | Jun 21, 2025

OVERALL

(0 ratings)

0
Spartan Trifecta Montana
Bozeman, MT | Jun 21–22, 2025

OVERALL

(1 rating)

5
Trail Rail Run
St. Regis, MT | Jun 21, 2025

OVERALL

(5 ratings)

4.2
Glacier Half Marathon 🏆
Kiowa, MT | Jun 28, 2025

OVERALL

(121 ratings)

4.8
Missoula Marathon 🏆
Missoula, MT | Jun 28–29, 2025

OVERALL

(361 ratings)

4.8
Herron Half Marathon, 10K & 5K
Kalispell, MT | Jul 12, 2025

OVERALL

(1 rating)

4
Madison Marathon (MT)
Madison, MT | Jul 12, 2025

OVERALL

(16 ratings)

4.5
Big Sky Marathon
Ennis, MT | Jul 13, 2025

OVERALL

(10 ratings)

4.2
Big Sky State Games Road Races
Laurel, MT | Jul 19, 2025

OVERALL

(0 ratings)

0
Yellowstone Trail 50K, 25K & 10K
West Yellowstone, MT | Jul 26, 2025

OVERALL

(0 ratings)

0
HURL Elkhorn Endurance Runs
Clancy, MT | Aug 2, 2025

OVERALL

(0 ratings)

0
Prospector’s 50K & 30K
Silver Gate, MT | Aug 9–10, 2025

OVERALL

(0 ratings)

0
Nitty Gritty Off Road Race
Red Lodge, MT | Aug 17, 2025

OVERALL

(1 rating)

3
Canine Classic at The Resort at Paws Up
Greenough, MT | Aug 24, 2025

OVERALL

(0 ratings)

0
Jack & Jill’s Downhill Marathon & Half Marathon Montana
Livingston, MT | Aug 30, 2025

OVERALL

(0 ratings)

0
AIDSPIRIT USA Marathon
Harlowton, MT | Aug 31, 2025

OVERALL

(0 ratings)

0
Mntwi l Nłʔay Half Marathon (virtual)
Missoula, MT | Sep 1, 2025

OVERALL

(0 ratings)

0
Bozeman Half Marathon & 10K
Bozeman, MT | Sep 7, 2025

OVERALL

(14 ratings)

4.2
The Rut Mountain Runs
Big Sky, MT | Sep 12–14, 2025

OVERALL

(1 rating)

5

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