Lake Saint Louis
Triathlon Calendar near Lake Saint Louis 2026-2027
Monthly updates for Lake Saint Louis
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Lake Saint Louis for 2026-2027! We've gathered 3 exciting races in the area. Check out our detailed list below to find your next local race.
August 2026
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.
June 2027
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.