Which Iowa cities have the most races?
Des Moines (26), Bettendorf (7), Iowa City (6), Waterloo (4) have the most upcoming races in Iowa. If you are willing to travel an hour or two, those give you the widest choice of dates and distances.
Iowa · Race calendar
Every upcoming running race in Iowa, all 142 of them. 5Ks, 10Ks, half marathons and marathons with dates, pricing, finish-time stats from past results, and start-line maps.
142 upcoming races · 21 with finish-time stats
By the numbers
The Iowa 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.
Des Moines (26), Bettendorf (7), Iowa City (6), Waterloo (4) have the most upcoming races in Iowa. If you are willing to travel an hour or two, those give you the widest choice of dates and distances.
Iowa has 5K (117), 10K (43), Half Marathon (39), Marathon (12), Ultra (1). Pick a distance to narrow the list to races you would actually enter.
September is the busiest month for races in Iowa, with 37 of the 142, followed by August with 33. 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 Iowa with published results, the typical median finish is around 35:38, 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, 7 races around Iowa get you off the pavement: 5 are trail races, and 2 mix road and trail. Surfaces are not always published, so it is worth checking a specific race before you register.