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Triathlon Calendar near Cottleville 2026-2027

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Monthly updates for Cottleville

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Explore the top triathlons near Cottleville for 2026-2027! We've gathered 5 exciting races in the area. Check out our detailed list below to find your next local race.

July 2026
Jul
19
Su

Ballwin Triathlon

Triathlon
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.
Jul
26
Su

Tour de Kirkwood Triathlon

Triathlon
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
Aug
23
Su

370 Lakeside Triathlon

Road Race Walk Triathlon Duathlon Aquathlon 2 mi 5 km 10 km 13 mi
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
Jun
1
Tu

Innsbrook Triathlon

Triathlon
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.
Jun
1
Tu

St. Louis Triathlon

Road Race Walk Triathlon Duathlon Aquathlon 6 km
A USAT sanctioned state championship triathlon at Creve Coeur Park on June 28, 2026 featuring sprint and Olympic formats, relays, a 6K run, pre race expo and post race festival with awards and athlete amenities.
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