Chicago Marathon 2025 Participants. The bank of america chicago marathon is a world class running event returning to the streets of chicago on sunday, october 8, 2023. Those who have completed five or more chicago marathons within the last 10 years may register for the 2025 chicago marathon with a.

Will past bank of america chicago marathon finishers be given preference to register for the 2025 chicago marathon? In 2024, more than 81,000 participants finished the race.