Missouri
Missouri Triathlon Calendar 2026-2027
Monthly updates for Missouri
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Explore the best triathlons in Missouri for 2026-2027! Our updated list features 8 exciting races across the region. Find your next race in Missouri below and join the running community at these great events!
June 2026
A two day triathlon in Rogersville Missouri featuring youth races and multiple adult distances including a new supersprint option. The event dates to 1982 and is presented as the 39th annual ConcreteMan Triathlon.
State championship triathlon at Creve Coeur Park on June 28, 2026, with sprint and Olympic formats plus relays, paratriathlon and a 6K. USAT sanctioned; packet pickup and bike drop occur the day before.
July 2026
A two day triathlon event in New Town, Saint Charles with youth races and multiple adult distances including a 0.62 mile swim, 20 mile bike and 4 mile run for the long course. An open water swim series precedes the event.
The 27th annual Ballwin Triathlon in Ballwin, Missouri is a USAT sanctioned sprint with a 300 yard pool swim, 9 mile bike, and 3.4 mile run. Options include single, double, relay, and buddy entries with packet pickup requiring photo ID.
Honor military sacrifice at this patriotic multi-sport event featuring triathlon and duathlon distances at Smithville Lake Missouri. Choose between short and long courses with all proceeds donated to charity.
A short-course triathlon in Saint Louis with individual and relay options, timed results, and a post race lunch provided by the title sponsor.
August 2026
A sprint triathlon at the YMCA in Springfield on August 22, 2026, featuring a 300 m swim, 8 m bike and 5 km run. Adult participants receive a t shirt and medal, with awards for top male and top female finishers.
A USAT sanctioned multisport event in Saint Peters on August 23, 2026 offering distances from a 300 meter super sprint to a half distance, plus duathlon, aquabike, aquathlon and a 5K run.