Missouri
Missouri Triathlon Calendar 2025-2026
Explore the best triathlons in Missouri for 2025-2026! Our updated list features 6 exciting races across the region. Find your next race in Missouri below and join the running community at these great events!
November 2025
Join the Tiger Tri Relays at Mizzou Rec on November 2, 2025 for a fast indoor relay triathlon featuring a 500 yard pool swim, 10 mile stationary bike leg and a 5k outdoor track run. Team up, race hard, and chase podium glory.
May 2026
Register for the Kansas City Triathlon on May 17, 2026 and race on flat, closed bike and run courses. With sprint, Olympic, elite and relay options plus variable swim starts, it offers a great early season test for all levels.
June 2026
Take on swim, bike and run at the Lou Fusz St. Louis Triathlon on June 28, 2026 at Creve Coeur Park with distances from sprint to Olympic, plus relays and para divisions. Enjoy a lively post race festival with music, food and medals.
July 2026
Honor Matt Mason and support those who made the ultimate sacrifice at the Cowboy UP Triathlon and Duathlon at Smithville Lake. Choose triathlon, duathlon, relay or virtual entry and enjoy scenic swim bike and run courses with age group and overall aw..
August 2026
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