Which Idaho cities have the most races?
Boise (23), Idaho Falls (4), Coeur d'Alene (4), Coeur D Alene (3) have the most upcoming races in Idaho. If you are willing to travel an hour or two, those give you the widest choice of dates and distances.
Idaho · Race calendar
Every upcoming running race in Idaho, all 60 of them. 5Ks, 10Ks, half marathons and marathons with dates, pricing, finish-time stats from past results, and start-line maps.
60 upcoming races · 21 with finish-time stats
By the numbers
The Idaho races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.
How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Jul 27, 2026.
Boise (23), Idaho Falls (4), Coeur d'Alene (4), Coeur D Alene (3) have the most upcoming races in Idaho. If you are willing to travel an hour or two, those give you the widest choice of dates and distances.
Idaho has 5K (43), 10K (18), Half Marathon (17), Marathon (7), Ultra (1). Pick a distance to narrow the list to races you would actually enter.
August is the busiest month for races in Idaho, with 14 of the 60, followed by October with 14. If you are flexible on the date, that is the quickest way to narrow things down.
Yes, for the most part. Across the 21 races in Idaho with published results, the typical median finish is around 43:54, which means half of every one of those fields came in slower than that. Recreational runners and walk-runners are the bulk of these fields, not the exception.
Yes, 9 races around Idaho get you off the pavement: 6 are trail races, and 3 mix road and trail. Surfaces are not always published, so it is worth checking a specific race before you register.