Montana Triathlon Calendar 2025-2026

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Explore the best triathlons in Montana for 2025-2026! Our updated list features 57 exciting races across the region. Find your next race in Montana below and join the running community at these great events!

October 2025
Oct
4
Saturday

Zootown Challenge Obstacle Course Race

Obstacle Run
Oct
4-5
Sa - Su

X-RATED Ultra Running Festival

Backyard Ultra 24 hr
Oct
5
Sunday

Back Roads Half

10 km 13 mi
Oct
5
Sunday

11 Miles to Paradise

Trail Run 11 mi
Oct
5
Sunday

Wolf Creek Canyon Relay

28 mi
Oct
11
Saturday

Le Grizz Ultramarathon

Trail Run 5 km 10 km 50 mi
Oct
19
Sunday

Just for the Helena of It

5 km 10 km 13 mi
November 2025
Nov
1
Saturday

Montana Cup

Trail Run 5 km
Nov
9
Sunday

Patriot Run - Billings

5 km
Nov
22
Saturday

Turkey Dash

5 km
Nov
27
Thursday

Crossroads Fitness Turkey Trot

5 km 10 km
Nov
27
Thursday

Burn The Bird 10k

5 km 10 km
Nov
27
Thursday

Red Lodge Turkey Trot

3 mi
February 2026
Feb
21
Saturday

Snow Joke Half Marathon

13 mi
March 2026
Mar
14
Saturday

Run to the Pub

10 km 13 mi
May 2026
May
16
Saturday

Whitefish Marathon

5 km 13 mi 26 mi
June 2026
Jun
6
Saturday

Pronghorn Pursuit Trail Run

Trail Run 5 km 15 km
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