Oak Forest
Triathlon Calendar near Oak Forest 2026-2027
Monthly updates for Oak Forest
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Oak Forest for 2026-2027! We've gathered 8 exciting races in the area. Check out our detailed list below to find your next local race.
November 2026
Indoor triathlon at Oak Brook Park District for ages 12 and up combining 2000 m rowing, 2.5 miles cycling and a 1.25 mile run/walk with tiered registration fees.
January 2027
An indoor, one hour swim bike run event at the ET Training Center in Lisle with timed distance scoring across swim, spin and treadmill segments.
February 2027
An indoor, one hour swim bike run event at the ET Training Center in Lisle with timed distance scoring across swim, spin and treadmill segments.
March 2027
An indoor sprint triathlon with a 10 minute swim, 15 minute bike on Keiser spin bikes, and 15 minute run on Precor treadmills, held at the CORE in Lemont IL.
An indoor, one hour swim bike run event at the ET Training Center in Lisle with timed distance scoring across swim, spin and treadmill segments.
Monthly updates for Oak Forest
Get new running races (and updates) in your inbox every month.
June 2027
A multi-distance triathlon weekend in Hammond, Indiana featuring Sprint and Olympic races, a Paratriathlon national qualifier, youth and canine events, and programming that honors Military, Veterans, and First Responders.
August 2027
Sprint triathlon, duathlon, aquabike and kids triathlon on August 1, 2027 at Centennial Beach Park in Naperville with a pool swim, two loop 22K bike and 5K run.
A multi-distance triathlon along Lake Michigan in Chicago on August 21-22, 2027 with sprint, Olympic, SuperSprint and kids races plus city bike and run routes.