The priority application window for the 2025 Chicago River Swim (tentatively scheduled for Sunday, September 21, 2025) is now closed. A second (general) application window will open in the future (exact dates TBD). All 2024 participants and deferred athletes receive guaranteed access into the 2025 event, yet will be required to complete the same application as the general public. Capacity in the 2025 event will be limited. Stay tuned for more details via this site and email.
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