2018 General Registration Is Now Open!
Chicago Triathlon
Welcome to the main event

The Transamerica Chicago Triathlon offers Sprint and International distance courses on Sunday of race weekend. These races, held in downtown Chicago, begin at Monroe Harbor, loop along Lake Shore Drive and culminate with a rousing run down Columbus Drive.


Be prepared for race day! Check out the 2017 Athlete Guide for detailed schedules, course information and more.
> View the 2017 Athlete Guide