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Priority Registration opens to current 2025 Chicago Triathlon registrants on Thursday, March 20 (watch your inbox for a private email from the Chicago Triathlon / SupertTri). Registration for the general public will open Monday, March 24 at 12:00 PM CT on this site. Availability will be limited. These sessions will sell out.
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We use cookies to offer you a better browsing experience. Read how we use cookies and how you can control them by visiting our Privacy Policy.
