International and Sprint Individual distances officially SOLD OUT. International & Sprint Relay registration still open.
August 27, 2017
2017 Registration Nearly Full
One Weekend, Six Races
August 26, 2017
Life Time Kids Tri Chicago
The ultimate triathlon launchpad!
August 26, 2017
Chicago SuperSprint Triathlon
Are you ready for the Divvy Wave?
August 27, 2017
You Can Do This
Take the first steps toward becoming a triathlete

Where the World Comes to Race™
August 26-27, 2017

For 35 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.


Get in the loop


Interested in becoming a sponsor?
For information on sponsorship opportunities, please contact our sponsorship team.