There are 85 5K races in Montana scheduled for 2026. The next is the Longest Dam Race in Fort Peck on June 20. Montana 5K races run primarily June.

Koocanusa Scramble

Sat, Jul 11 · Rexford, MT Rexford
The Family Ramble - Walk or Ride 5 mileThe Sandhill Vistas 20 mile ride (E-Bike Variation available)The Electric Wings 44 - ish mile E-Bike +2

Wolf Run Series - RUNNING WOLF 2026

Sat, Jul 18 · Stanford, MT Stanford
One Mile Family Fun Run - Begins at 9:30 a.m. at 3117 Mtn View Rd5K - Must be at 3117 Mtn View Rd at 8:00 a.m. for bus ride to startHalf Marathon Bike - Must be at 3117 Mtn View Rd at 5:30 a.m. for bus ride to start +1

Boogie To The Bank

Sat, Jul 25 · Columbia Falls, MT Columbia Falls
Boogie to the Bank- 5K Run/WalkBoogie to the Bank-10K10k Hand Cycle +1

Race Montana Triathlon and Duathlon 2026

Sat, Aug 22 · Great Falls, MT Great Falls
YOUTH Triathlon Short Course (50 METER SWIM / 1 MILE BIKE / 0.5 MILE RUN)YOUTH AND ADULT Team Triathlon Long Course (100 METER SWIM / 3 MILE BIKE / 1 MILE RUN)YOUTH AND ADULT Triathlon Long Course (100 METER SWIM / 3 MILE BIKE / 1 MILE RUN) +4