Marathon · Idaho
Marathons in Idaho
Every marathon we track across Idaho, sorted by date. Each card shows deterministic 0–100 scores for beginner-friendliness, PR potential, value, vibe, and family appeal.
Marathon
Sat, May 16, 2026
Boise, Idaho
road
Rolling
60PR40value45vibe
Marathon
Sat, Oct 10, 2026
Boise, Idaho
road
Rolling
60PR40value55vibe
scenic
Marathon
Sat, Oct 10, 2026
Hayden Lake, Idaho
road
Rolling
60PR40value50vibe
scenic
Get an alert when a new race is added
Save this search and we'll email you when a matching race opens registration or drops in price.
Explore more
Top metros in Idaho for marathons
Cities in Idaho with the most marathon races on the calendar.