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 13 exciting races across the region. Find your next race in Missouri below and join the running community at these great events!
December 2026
An off road multi sport navigation race at Klondike Park combining paddling, mountain biking and trail travel with solo and team entry options.
February 2027
April 2027
Off-road triathlon at Table Rock State Park in Branson, Missouri on Apr 24, 2027 featuring full and sprint distances, with the sprint serving as a youth qualifier.
May 2027
Four trail and paddle races at Lake of the Ozarks State Park on May 1, 2027, from a long run-and-paddle traverse to a 25K and a 5.5-mile trail race.
Multi-distance triathlon and duathlon event in Kansas City offering Olympic, sprint, relay and duathlon formats, scheduled for May 16, 2027.
Monthly updates for Missouri
Get new running races (and updates) in your inbox every month.
June 2027
Innsbrook Triathlon on June 12, 2027 at Lionshead Beach offers lake swims, rolling bike routes and mixed-surface runs with USAT-sanctioned race formats.
A two-day triathlon in Rogersville, Missouri offering youth and adult distances including supersprint, sprint and Olympic(ish) formats, marking the 40th annual ConcreteMan.
St. Louis Triathlon at Creve Coeur Park on June 27, 2027 is a USAT sanctioned state championship offering sprint and Olympic formats, relays, a 6K run, and a finish festival.
July 2027
USAT sanctioned Ballwin Triathlon on July 18 2027 features a 300 yard pool swim, 9 mile bike and 3.4 mile run with single, relay and double options.
Multi-format race in Ozark MO on July 24, 2027 with triathlon, relay triathlon, and duathlon options plus river swim and country bike roads.
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.
An hourly elimination triathlon in Springfield, MO where athletes repeat a 100 m swim, 5 mi bike and 1.25 mi run each hour until one athlete remains.
September 2027
A USAT‑sanctioned triathlon at 370 Lakeside Park offering distances from a 5K and sprints up to a half triathlon, with a beach swim, country‑road bike courses, and a finish festival.