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Triathlon Calendar near Grafton 2026-2027

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Monthly updates for Grafton

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Explore the top triathlons near Grafton 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
Aug
23
Su

370 Lakeside Triathlon

Road Race Walk Triathlon Duathlon Aquathlon Sprint 750 m 5 km Olympic 1.5 10 km Middle distance 1.2 13.1 mi Sprint 750 m 23 km
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

St. Louis Triathlon

Road Race Walk Triathlon Duathlon Aquathlon Sprint 750 m 5 km Olympic 1 mi 10 km Sprint 750 m 20 km Sprint 750 m 20 5 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.
July 2027
Jul
1
Th

Ballwin Triathlon

Triathlon Ballwin Single 300 m 9 3.4 mi Ballwin Single Relay 300 m 9 3.4 mi Ballwin Double 300 m 9 3.4 mi 1 m 9 3.4 mi
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.
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