Idaho Marathon Calendar 2025-2026

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Explore the best marathons in Idaho for 2025-2026! Our updated list features 13 exciting races across the state. Find your next race in Idaho below and join the running community at these great events!

May 2025
May
3
Saturday

Boise River Marathon

5 km 10 km 13 mi 26 mi
May
17
Saturday

YMCA Famous Idaho Potato Marathon

5 km 10 km 13 mi 26 mi
May
23-31
Fr - Sa

Coeur d'Alene Marathon

5 km 10 km 13 mi 26 mi
June 2025
Jun
7
Saturday

Teton Dam Marathon

5 km 10 km 13 mi 26 mi
Jun
21
Saturday

Boise Marathon

5 km 10 km 13 mi 26 mi
Jun
21-22
Sa - Su

Race The Wolf

Trail Run 5 mi 13 mi 26 mi
July 2025
Jul
19
Saturday

Mesa Falls Marathon

5 km 10 km 13 mi 26 mi
Jul
26
Saturday

Idaho Falls Marathon

5 km 13 mi 26 mi
September 2025
Sep
6
Saturday

Salmon Marathon

13 mi 26 mi
Sep
13
Saturday

Priest Lake Marathon

26 mi
October 2025
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
18
Saturday

Idaho Running Day

5 km 10 km 13 mi 26 mi
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