June 2026 Missouri Triathlon Races
3 upcoming Triathlons in Missouri in June.
Races happening soon in Missouri.
These endurance races in Missouri are happening in the next 7 days. Check them out and sign up soon if you’re looking for something fun to do.
ConcreteMan & ConcreteKids Triathlon
6176 State Hwy VV, Rogersville, MO
Sprint · Olympic
Avg 85° / 64°·1,424 ft city elevation Avg 85° / 64°1,424 ft city elevation Chesterfield Youth Triathlon
Chesterfield Aquatic Center, Chesterfield, MO
Avg 86° / 67°·536 ft city elevation Avg 86° / 67°536 ft city elevation St. Louis Triathlon
13725 Marine Avenue, Saint Louis, MO
Sprint · Olympic
Avg 89° / 70°·471 ft city elevation Avg 89° / 70°471 ft city elevation July 2026 Missouri Triathlon Races
4 upcoming Triathlons in Missouri in July.
St. Luke's New Town Triathlon
3510 New Town Lake Dr., Saint Charles, MO
Sprint
Avg 88° / 68°·570 ft city elevation Avg 88° / 68°570 ft city elevation Ballwin Triathlon
335 Holloway Road, Ballwin, MO
Sprint
Avg 89° / 70°·640 ft city elevation Avg 89° / 70°640 ft city elevation 2026 Matt Mason "Cowboy UP" Triathlon/Duathlon
Smithville Lake Crow's Creek Park, Smithville, MO
Sprint · Olympic
Avg 87° / 68°·850 ft city elevation Avg 87° / 68°850 ft city elevation Tour de Kirkwood Triathlon
111 S Geyer Rd, Saint Louis, MO
Avg 90° / 72°·471 ft city elevation Avg 90° / 72°471 ft city elevation August 2026 Missouri Triathlon Races
4 upcoming Triathlons in Missouri in August.
Thousand Oaks Kids Triathlon
6630 N Nevada Ave., Parkville, MO
The Inkwell Clayton Kids Triathlon
27 S Brentwood Blvd, Saint Louis, MO
Avg 89° / 70°·471 ft city elevation Avg 89° / 70°471 ft city elevation Pat Jones YMCA Tri at the Y
1901 E Republic Rd, Springfield, MO
Sprint
Avg 87° / 66°·1,294 ft city elevation Avg 87° / 66°1,294 ft city elevation 370 Lakeside Triathlon
1000 Lakeside Park Drive, Saint Peters, MO
5K · Sprint · Olympic
Avg 87° / 65°·493 ft city elevation Avg 87° / 65°493 ft city elevation September 2026 Missouri Triathlon Races
1 upcoming Triathlon in Missouri in September.
Ballwin Kids Triathlon
1 Ballwin Commons Circle, Ballwin, MO
Sprint
Avg 77° / 54°·640 ft city elevation Avg 77° / 54°640 ft city elevation