Naperville
Triathlon Calendar near Naperville 2026-2027
Monthly updates for Naperville
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Explore the top triathlons near Naperville for 2026-2027! We've gathered 7 exciting races in the area. Check out our detailed list below to find your next local race.
February 2026
Join the St. Charles Indoor Triathlon on Feb 1, 2026 at Norris Recreation Center, featuring adult and youth waves with pool lane swims, stationary bikes, and a tracked run. Proceeds benefit St. Charles Aquatics and youth tri programs.
Indoor triathlon at Lifetime Fitness in Burr Ridge on Feb 22, 2026, featuring timed swim, studio cycling and treadmill runs for a fast, competitive workout. Small waves, finisher shirt and medal, plus awards for top performers.
March 2026
Grab a partner for the Dream Team Dri Tri at Oak Brook Park District on March 8, 2026, a two person relay mixing indoor rowing, air assault biking and laps on the track. Open to ages 12 and up, registration closes March 5.
Join an indoor triathlon in New Lenox on March 8, 2026 to support the Crisis Center for South Suburbia. Swim, bike, and run on timed machines for fun and fitness while raising funds for a great cause.
Test your speed at the CORE Indoor Sprint Triathlon in Lemont with timed swim, spin bike and treadmill segments in small 20 minute heats. Awards, participant shirt and limited spots make early registration smart.
August 2026
A one-day multisport event in Naperville on August 2, 2026 featuring sprint triathlon, kid's triathlon, duathlon and aquabike formats at 500 Jackson Ave with several entry categories and published fees.
November 2026
Join the Turkey Dri Tri in Oak Brook for an indoor triathlon of rowing, cycling and a short track run. Friendly heats and prizes culminate with the Golden Turkey for top male and female.