It's not too late to sign up to conquer Chicago at the Chicago Triathlon! If you do not register for the event, being a spectator is highly recommended as well!
From the event website: "General registration opened November 1, 2018 at 12:00 PM CT. The 2019 event is limited to 7,500 participants. This event will sell out.
For 37 years, triathletes have gathered on the shores of Lake Michigan for one of the largest triathlons in the world. The Chicago Triathlon is an action-packed tour through one of America’s signature metropolises."
Race details and registration on the event website here.