Idaho Half Marathon Calendar 2025-2026

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Explore the best half marathons in Idaho for 2025-2026! Our updated list features 19 exciting races across the state. Find your next race in Idaho below and join the running community at these great events!

March 2025
Mar
15
Saturday

St. Patrick's Fun Run & Walk

3 mi 5 mi 13 mi
April 2025
Apr
19
Saturday

Race to Robie Creek

13 mi
Apr
26
Saturday

Spring Dash

5 km 10 km 13 mi
May 2025
May
3
Saturday

Boise River Marathon

5 km 10 km 13 mi 26 mi
May
10
Saturday

Long Bridge Half-Marathon

5 km 10 km 13 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
May
24
Saturday

Redfish Lake Lodge Memorial Weekend Run

5 km 10 km 13 mi
June 2025
Jun
7
Saturday

Teton Dam Marathon

5 km 10 km 13 mi 26 mi
Jun
7
Saturday

Spirit of Magic Valley Half Marathon

5 km 10 km 13 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
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
18
Saturday

Idaho Running Day

5 km 10 km 13 mi 26 mi
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