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Idaho Half Marathon Calendar 2026-2027

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Monthly updates for Idaho

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Explore the best half marathons in Idaho for 2026-2027! Our updated list features 31 exciting races across the region. Find your next race in Idaho below and join the running community at these great events!

April 2026
Apr
18
Sa

Race to Robie Creek

13 mi
Apr-May
25-16
Sa

Boise River Marathon

3 mi 6 mi 13 mi 26 mi
Apr
25
Sa

Spring Dash

5 km 10 km 13 mi
Apr
25
Sa

Falls2Falls

5 km 5 mi 13 mi
May 2026
May
9
Sa

Long Bridge Half-Marathon

5 km 6 mi 13 mi
May
9
Sa

Over The Top Trail Race - Pocatello, ID

Trail Run 5 km 10 km Half Marathon 30 km
May
16
Sa

YMCA Famous Idaho Potato Marathon

5 km 10 km 13 mi 26 mi
May
23-24
Sa - Su

CDA Marathon

5 km 10 km 13 mi 26 mi
May
23
Sa

Redfish Lake Lodge Memorial Weekend Run

5 km 10 km 13 mi
May
30
Sa

Post Falls Half Marathon

5 km 10 km 13 mi
June 2026
Jun
6
Sa

Teton Dam Marathon

5 km 10 km 13 mi 26 mi
Jun
6
Sa

Spirit of Magic Valley Half Marathon

5 km 10 km 13 mi
Jun
13
Sa

Dirty Dog Trail Marathon and Half Marathon

Trail Run Half Marathon Marathon
Jun
20-21
Sa - Su

Race The Wolf

Trail Run 5 mi 13 mi 26 mi
Jun
20
Sa

Boise Marathon

5 km 10 km Half Marathon Marathon
Jun
20
Sa

Duck Donuthon

3 mi 6 mi 13 mi
July 2026
Jul
11
Sa

Christmas Half Marathon in July - Boise

5 km 10 km 13 mi
Jul
18
Sa

Mesa Falls Marathon

5 km 10 km 13 mi 26 mi
Jul
25
Sa

Idaho Falls Marathon

5 km 13 mi 26 mi
September 2026
Sep
5
Sa

Pocatello Marathon

3 mi 6 mi 13 mi 26 mi
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