Swimmers race in the Chicago River for first time in nearly 100 Years PlayFor the first time in nearly a century, the Chicago River hosted an organized open swim. A swimmer competes in a race in the Chicago River. “I have [swam] in the Chicago River and it’s perfectly delightful,” said McConnell, a longtime competitive swimmer whose open-water swims have included crossing the English Channel. Water quality has rebounded since the Clean Water Act of 1972, and many Chicagoans have embraced the river as a venue for fishing, kayaking and riverside strolls. Luke Maurer was excited to be one of the first swimmers to revive the tradition of organized swim events downtown.