Idaho Running calendar 2025-2026

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Explore the best running races in Idaho for 2025-2026! Our updated list features 74 exciting races across the state. Find your next race in Idaho below and join the running community at these great events!

September 2025
Sep
13
Saturday

Priest Lake Marathon

26 mi
Sep
20
Saturday

Rexburg Rush Triathlon

Triathlon
Sep
20
Saturday

Race the Rocks

Trail Run 50 km
Sep
20-21
Sa - Su

Idaho Mountain Trail Ultra Festival (IMTUF 100)

Trail Run 20 mi 100 mi
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 34 mi
Oct
10-19
Fr - Su

Hayden Lake Marathon

5 km 6 mi 13 mi 26 mi
Oct
11
Saturday

City of Trees Marathon

5 km 10 km 13 mi 26 mi
Oct
11
Saturday

Blackfoot Tater Trot

5 km 10 km
Oct
11-12
Sa - Su

Sasquatch Shuffle

Trail Run 20 km 30 km 50 km
Oct
18
Saturday

Idaho Running Day

5 km 10 km 13 mi 26 mi
November 2025
Nov
27
Thursday

North Idaho Turkey Trot

5 km 10 km
December 2025
Dec
12
Friday

Dizzy Horse Backyard Ultra

Backyard Ultra 4 mi
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