Chicago River Swim

The Chicago River Swim is a historic open water endurance event on Sunday, September 20, 2026, from 6:30 AM to 10:00 AM. It features one-mile and two-mile courses through the downtown main stem, starting at the Dearborn Street Bridge and ending at the Clark Street Bridge. The swim raises funds for ALS research and youth swim education, with spectators welcome along the Riverwalk. Applications open March 31 and close April 27 for up to 500 swimmers.