Endurance Grid lists 8 swimming races in Iowa, from August 2026 to June 2027 across 8 cities.
The lay of the land
The swimming race calendar in Iowa is busiest in August, June, and May, with races most often in Ames, Council Bluffs, and Des Moines.
Open water swim races take place in lakes, rivers, bays, and oceans. The course is marked by big buoys, with kayaks and lifeguards shadowing it the whole way. The water is the variable: currents, chop, temperature, and the need to sight and navigate for yourself.
There’s a distance for every level. A 500 to 750m swim is a good starting point to learn the sport, and most events stack several distances — a mile, 5K, 10K — on the same day, so you can start on the same course as the veterans.
Frequently Asked Questions (FAQs)
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Endurance races in Iowa happening in the next 7 days, in date order. Browse what’s coming up and sign up soon.