For more than 30 years, triathletes have gathered on the shores of Lake Michigan for one of the largest triathlons in the world. The Transamerica Chicago Triathlon is an action-packed tour through one of America’s signature metropolises. When it comes to triathlon in Chicago, this event has got it covered. For professionals, amateurs and kids alike, there's nothing better than racing along Lake Michigan and throughout downtown Chicago. Competitors can race as individuals, as part of a relay or by teaming up with one of our official charity partners.

Race weekend consists of five stand-alone triathlons, including the Life Time Kids Tri Chicago, SuperSprint and the Transamerica Chicago Triathlon sprint, international and pro races.