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 15 exciting races across the region. Find your next race in Missouri below and join the running community at these great events!
May 2026
A short-distance triathlon in Kirksville combining a 150 yard swim, 9 mile bike and 2.4 mile run. Individual and relay entries are available, with relay teams using a single timing chip passed between teammates.
A multi day adventure race in Warsaw, Missouri on May 2–3, 2026, serving as a USARA regional championship and an ARWS points race. Options include 2 hour, 6 hour and 24 hour courses with biking, trekking and paddling.
Experience a flat and fast duathlon featuring a 12 mile bike circuit and runs along the Mississippi River. Participants cross the historic Chain of Rocks Bridge in this scenic Illinois multisport event.
A timed 5K Run and Walk at Bluebird Park in Ellisville, MO supporting Asher's Playground, with packet pickup the day before and on race morning and awards by age group.
Kansas City Triathlon on 05/17/2026 at 11101 Raytown Rd features Olympic and sprint triathlons, a sprint duathlon, and an Olympic relay. Swim starts vary by category and registration windows and fees apply.
June 2026
Triathlon at Innsbrook Resort in Wright City, Missouri on June 6, 2026. Sprint and Olympic distances plus aquabike and relay options include a lake swim, rolling bike terrain, and a run on gravel and pavement.
A multi event weekend in Jefferson City on June 13 and 14, 2026 featuring triathlon, relay and duathlon races plus youth options. Courses use the Ellis Porter Riverside Park pool and run and bike routes near the historic penitentiaries.
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.
A USAT sanctioned state championship triathlon at Creve Coeur Park on June 28, 2026 offering sprint and Olympic races, relays, paratriathlon divisions and a 6K run walk with race day festival and awards.
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.
A memorial triathlon at Smithville Lake on July 26, 2026, the Matt Mason Memorial "Cowboy UP!" Triathlon honors those who made the ultimate sacrifice and directs proceeds to scholarships and local military-focused organizations through donations, spo..
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.