Running Race Calendar in Montana, United States

Kickin Assphault Half Marathon, 10k, 1 Mile run/walk, 1/2 mile Kid's Dash

Great Falls, Montana, United States

31 May, 2026 (Sun)

Running

Half-Marathon 10K 5K 1.6K

Trail Running + Pollinator Science: MTC x The Xerces Society

Missoula, Montana, United States

30 May, 2026 (Sat)

Running

6.4K

Additional May Clinics

Missoula, Montana, United States

25 May, 2026 (Mon) – 28 May, 2026

Running

Fix a Flat Clinic (@ VRTX Rooftop) Women+'s Saddle Clinic (@ VRTX Rooftop) Train your Brain (For The Dusty Bandita) @ Headwaters Foundation/Confluence Center

Beaverhead Marathon Full & Half

Dillon, Montana, United States

23 May, 2026 (Sat)

Running

Marathon Half-Marathon

Memorial Day 5K Virtual Run - Billings

Billings, Montana, United States

23 May, 2026 (Sat) – 25 May, 2026

Running

5K

The Petra Classic 5K

Bozeman, Montana, United States

22 May, 2026 (Fri)

Running

5K 1.6K +1

Missoula Rut Community Night

Missoula, Montana, United States

20 May, 2026 (Wed)

Running

15th Annual Run for Heaven's Sake 2026

Billings, Montana, United States

17 May, 2026 (Sun)

Running

5K

Stillwater Run and Ride (previously Scavenger Hunt & 5K/10K)

Columbus, Montana, United States

16 May, 2026 (Sat)

Running, Cycling

10K 5K 11.3K

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

Whitefish, Montana, United States

16 May, 2026 (Sat)

Running

Marathon Half-Marathon 5K

VSAP - Veteran Suicide Awareness and Prevention 3 Mile Walk/12 Mile Run/6 Mile 20kg Ruck

Missoula, Montana, United States

16 May, 2026 (Sat)

Running, Walking

19.3K 4.8K 9.7K

The Last Best Beer Run and 5k

Billings, Montana, United States

16 May, 2026 (Sat)

Running

5K 4K