Iowa
Iowa Triathlon Calendar 2026-2027
Monthly updates for Iowa
Get new running races (and updates) in your inbox every month.
Explore the best triathlons in Iowa for 2026-2027! Our updated list features 9 exciting races across the region. Find your next race in Iowa below and join the running community at these great events!
May 2027
Triathlon in Sioux Center with a 300 yard indoor swim, a 25K bike on paved roads and a 5K run on paved trails; individual or 2 to 3 person relay entries.
Multi-discipline event at Lake Manawa Beach on 23 May 2027 featuring sprint and relay triathlons, aquabike, aquathon, open-water swim and a duathlon, with swim, bike and run courses around the lake.
June 2027
A multisport day at Pleasant Creek State Park featuring sprint and Olympic triathlons, aquabike, a sprint duathlon and a 1500 m open water swim, with relay teams welcome and chip timing for all races.
Annual community race on the High Trestle Trail with 5K, 10K, duathlon and virtual options; 208 athletes participated in 2026 to support the Boone County Hospital Foundation.
A multi-discipline event at Ada Hayden Lake on June 27, 2027 featuring triathlon, relay, paratriathlon, aquabike, duathlon and a swim-only race; the event is chip timed and part of the Heart of America Triathlon Series.
Monthly updates for Iowa
Get new running races (and updates) in your inbox every month.
August 2027
Triathlon at the Washington YMCA on August 14, 2027 with a 300 yard indoor swim, 13 mile bike on the Kewash Trail and a 5K run through Sunset Park.
Sprint distance triathlon and duathlon in Manchester, IA with a 400 yd swim or 1 mile run, a 16 mile bike and a 5K run; proceeds benefit local emergency services.
October 2027
A team or solo adventure race in Decorah, Iowa offering trekking, biking and paddling options with USARA sanctioning and separate 9-hour and 5-hour formats.