Idaho Trail Running Calendar 2025-2026

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Explore the best trail runs in Idaho for 2025-2026! Our updated list features 95 exciting races across the region. Find your next race in Idaho below and join the running community at these great events!

September 2025
Sep
27
Saturday

Top of Tamarack

15 mi
Sep
27
Saturday

Bogus 50/50

Trail Run 27 km 50 km 50 mi
October 2025
Oct
4
Saturday

Legends Never Die

Trail Run 13 mi 55 km
Oct
4
Saturday

Idaho High Mountain Triathlon

Triathlon
Oct
4
Saturday

Jackass Half Marathon

5 km 13 mi
Oct
5
Sunday

Moscow Mountain Madness

Trail Run 5 mi 13 mi 50 km
Oct
11
Saturday

City of Trees Marathon

5 km 10 km 13 mi 26 mi
Oct
11-12
Sa - Su

Sasquatch Shuffle

Trail Run 20 km 30 km 50 km
Oct
11
Saturday

Blackfoot Tater Trot

5 km 10 km
Oct
11
Saturday

Hayden Lake Marathon

5 km 6 mi 13 mi 26 mi
Oct
18
Saturday

Idaho Running Day

5 km 10 km 13 mi 26 mi
November 2025
Nov
1
Saturday

Fall Flash of the Palouse

5 km 10 km
Nov
27
Thursday

North Idaho Turkey Trot

5 km 10 km
December 2025
Dec
12
Friday

Dizzy Horse Backyard Ultra

Backyard Ultra 4 mi
January 2026
Jan
24
Saturday

Wilson Creek Frozen 50K

Trail Run 10 mi 20 mi 50 km
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