Half marathon (21.1 km) races in Boise, ID

Every race we list in Boise, ID where distances include half marathon (21.1 km). Add more limits, then compare the survivors.

1 of 374 shown

YMCA Famous Idaho Potato Marathon & Fun Runs Presented by Idaho Potato Commission

Sat 15 May 2027, Lucky Peak State Park

Country United States Distances Half marathon (21.1 km), Marathon (42.2 km) Surface Road Typical high on race day 21.8 °C

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Recently run, next date not announced yet

These ran in the last year and usually come back around the same time. We list the new date as soon as the organiser publishes it.

City of Trees Marathon & Half Marathon

Last held Sun 11 Oct 2026. Next date to come.

Country United States Distances Half marathon (21.1 km), Marathon (42.2 km) Surface Road Typical high on race day 19.6 °C

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