Collinsville
Triathlon Calendar near Collinsville 2026-2027
Monthly updates for Collinsville
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Collinsville 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 short-course triathlon on August 15, 2026 in O'Fallon, IL featuring a 150 m pool swim, 10 mile bike through rolling hills, and a 2 mile flat run. Post-race breakfast is available and proceeds support a memorial foundation.
September 2026
A biathlon with a 5 mile run and 22 mile bike plus a separate 5K run in Millstadt on Sept 13, 2026 with post race food and yoga; proceeds support the Park Fund.
June 2027
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.
Monthly updates for Collinsville
Get new running races (and updates) in your inbox every month.