Missouri
Missouri Triathlon Calendar 2026-2027
Monthly updates for Missouri
Get new running races (and updates) in your inbox every month.
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!
December 2026
An 8 hour off road navigation race around St. Louis combining canoeing, mountain biking and trekking with solo and team divisions.
May 2027
Multi-distance triathlon and duathlon event in Kansas City offering Olympic, sprint, relay and duathlon formats, scheduled for May 16, 2027.
June 2027
Experience Missouri’s premier multi-sport showdown at Creve Coeur Park with triathlon, duathlon, and aquathlon races for all athletes including a USAT State Championship.
A USAT-sanctioned triathlon at Innsbrook Resort with a lake swim, rolling-bike loops, and mixed-surface run. Multiple sprint and Olympic distances are offered along with aquabike and relay options, plus packet pickup and on-course support.
July 2027
A USAT sanctioned pool triathlon in Ballwin on July 19, 2026 with 300 yard swim, 9 mile bike and 3.4 mile run plus single, relay and double options.
Monthly updates for Missouri
Get new running races (and updates) in your inbox every month.
Multisport event in Ozark MO offering super-sprint, sprint, relay and duathlon races with a river swim, low-traffic bike roads, and a country run.
August 2027
Multi discipline event at Smithville Lake offering short and long triathlon and duathlon distances, relay and virtual options, with proceeds donated to support military families.
September 2027
Experience a USAT sanctioned triathlon at 370 Lakeside Park featuring a beach start, scenic rural bike course, and flat trail run with distances from 5K to Half Triathlon.