Celebrate the 19th annual Naperville Sprint Triathlon on Sunday, August 1, 2027, at the iconic Centennial Beach. Whether you’re chasing a personal best, tackling your first multisport event, or racing alongside family, there’s a distance for every athlete with Sprint Triathlon, Duathlon, Aquabike, and Kids Triathlon options. Enjoy a unique race experience featuring a swim in historic Centennial Beach, a scenic bike course through Naperville, and a fast, spectator-friendly run to the finish. Join hundreds of athletes for one of the Chicago area’s favorite summer triathlons.  

Event details and schedule