Chicago Marathon 2024 Map Route. A big part of the. When does the chicago marathon start?.

Here’s a rundown of the marathon—including registration information, facts and figures about field size, past winners, and weather—plus a review of the 2023 race. On this page is shown the 42.195 km (26.2 mi) course map of the event bank of america chicago marathon in chicago, illinois (sunday, october 13, 2024).