5K races in Montana, United States — 2026 running calendar

Rock the Run 5k and 1Mile/Walk Fun Run

Billings, Montana, United States

13 Sep, 2026 (Sun)

$25.00 - $35.00

Running

5K 1.6K

Run For Jimmy 5k / 1 Mile Walk

Billings, Montana, United States

19 Sep, 2026 (Sat)

Free

Running, Walking

5K 1.6K

Montana Marathon

Billings, Montana, United States

20 Sep, 2026 (Sun)

$45.00 - $115.00

Running

Marathon Half-Marathon 10K 5K

Whitefish Trail Blazer

Whitefish, Montana, United States

03 Oct, 2026 (Sat) – 04 Oct, 2026

$10.00 - $125.00

Running

Ultra 49.9K Half-Marathon 10.5K +6

Helena Sun Run

Helena, Montana, United States

03 Oct, 2026 (Sat)

$30.00

Running

5K 1.6K

Le Grizz Ultramarathon & Relay

Polebridge, Montana, United States

10 Oct, 2026 (Sat)

$35.00 - $150.00

Trail running, Running

Ultra 15K 5K

5K Brew Run at Après Brewing

Bozeman, Montana, United States

14 Oct, 2026 (Wed)

$10.00

Running

5K

Harvestfest 5k

Hungry Horse, Montana, United States

17 Oct, 2026 (Sat)

$25.00

Running

5K

Just for the Helena of It

Helena, Montana, United States

18 Oct, 2026 (Sun)

$35.00 - $95.00

Running

Half-Marathon 10K 5K 1.6K +3

Montana Cup

Billings, Montana, United States

31 Oct, 2026 (Sat)

$30.00

Running

5K

Patriot Run

Billings, Montana, United States

08 Nov, 2026 (Sun)

$15.00 - $35.00

Running

5K 2K

Turkey Dash

Libby, Montana, United States

21 Nov, 2026 (Sat)

$25.00 - $30.00

Running

5K 2.4K