Iowa
Iowa Triathlon Calendar 2025-2026
Monthly updates for Iowa
Get new running races (and updates) in your inbox every month.
Explore the best triathlons in Iowa for 2025-2026! Our updated list features 8 exciting races across the region. Find your next race in Iowa below and join the running community at these great events!
May 2026
Join the Waddling Warriors Adventure Race on May 2, 2026 at Wyalusing State Park, Wisconsin. Pick a 13 hour or 5 hour course mixing trekking, canoe paddling with gear provided, biking and orienteering for teams or solos, plus lodging and a post race..
Join the TriByKnight Triathlon in Waverly on May 2, 2026 at Wartburg College for a fast, friendly race in its 15th year. Swim 300 yards, ride 15 miles and run 3.1 miles with solo and relay options in a USAT sanctioned event.
June 2026
Experience the Trestle Hustle at High Trestle Trail in Madrid, a community favorite featuring 5K, 10K and a run, bike, run duathlon. The event kicks off High Trestle Fest with medals, refreshments and lively race day energy.
July 2026
Celebrate first responders at the Bring in the Backup Triathlon in Northwood, Iowa where first responders lead the field and others race in as backup. Choose solo or relay tri, aquabike, or duathlon and support local responder causes.
August 2026
Challenge yourself with a Sprint or Super Sprint triathlon at Twin Lakes Bible Camp in Manson on August 8, 2026. Chip timed races, on site breakfast, camping and awards make for a fun filled race day.
TRI Clear Lake is a scenic state championship triathlon in Clear Lake, Iowa featuring sprint and Olympic distances plus a Pro Elite Olympic race. Flat bike loops and a lakeside run make for fast race day action.
October 2026
Explore the Driftless Region around Elkader, Iowa in Wild Driftless, an adventure race blending trekking, mountain biking and paddling through limestone bluffs, trout streams and scenic gravel roads. Pick a 9 hour full course or a 5 hour lite version..