Marathon races in Montana, United States — 2026 running calendar

Bear Paw Marathon

Havre, Montana, United States

06 Jun, 2026 (Sat)

$45.00 - $145.00

Running

Marathon Half-Marathon 5K

Queen City Crown

Helena, Montana, United States

13 Jun, 2026 (Sat) – 18 Oct, 2026

Free

Running

Marathon

Missoula Marathon Half Marathon 5K Kids Marathon

Missoula, Montana, United States

27 Jun, 2026 (Sat) – 28 Jun, 2026

$10.00 - $385.00

Running, Wheelchair

5K 1.9K Marathon Half-Marathon +6

The Yellowstone Trail Marathon and Trail Races

West Yellowstone, Montana, United States

11 Jul, 2026 (Sat) – 01 Aug, 2026

$45.00 - $80.00

Running, Trail running

Marathon Half-Marathon 10K Ultra +5

Bob Marshall Trail Races

Seeley Lake, Montana, United States

18 Jul, 2026 (Sat)

$55.00 - $80.00

Trail running

Ultra 25K Marathon Half-Marathon +1

WICKED FAST MARATHON & HALF MARATHON MONTANA

Livingston, Montana, United States

15 Aug, 2026 (Sat)

$129.00 - $149.00

Running

Marathon Half-Marathon

AIDSPIRIT USA Marathon

Harlowton, Montana, United States

06 Sep, 2026 (Sun)

$35.00 - $120.00

Running

Marathon Half-Marathon 10K 5K

Montana Marathon

Billings, Montana, United States

20 Sep, 2026 (Sun)

$45.00 - $115.00

Running

Marathon Half-Marathon 10K 5K

Beaverhead Marathon Full & Half

Dillon, Montana, United States

23 May, 2026 (Sat)

Running

Marathon Half-Marathon

Whitefish Marathon, Half Marathon & 5K Presented by Hammer Nutrition

Whitefish, Montana, United States

16 May, 2026 (Sat)

Running

Marathon Half-Marathon 5K

Race Through Montana 1M, 5K, 10K, 13.1, 26.2 - Now Only $20!

Billings, Montana, United States

01 Feb, 2026 (Sun) – 31 Dec, 2026

$20.00

Running

1.6K 5K 10K Half-Marathon +1