Chicago Marathon July 23, 2024 5:10 pm Abbott Chicago 5K Kicks off the Bank of America Chicago Marathon weekend. The Abbott Chicago 5K is a great way to participate in the Bank of America Chicago Marathon weekend festivities. Local 1:31 Special Ventra card available for Chicago Marathon runners, fans 0:52 Chicago Marathon expects another record-breaking year 0:59 Preview the 2024 Bank of America Chicago Marathon Course 1:00 2024 Bank of America Chicago Marathon moment: Sport nutrition and hydration 1:42 Elite runner Keira D'Amato drops mic to re-enter Chicago Marathon race