bank of america chicago marathon August 20, 2024 5:57 pm Preview the 2024 Bank of America Chicago Marathon Course Preview the 2024 Bank of America Chicago Marathon course. Local 1:31 Special Ventra card available for Chicago Marathon runners, fans 0:52 Chicago Marathon expects another record-breaking year 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 1:05 Abbott Chicago 5K Kicks off the Bank of America Chicago Marathon weekend.