When Is The Chicago Marathon 2025 Dates. The bank of america chicago marathon is a world class running event returning to the streets of chicago on sunday, october 8, 2023. View results for the 2025 bank of america chicago marathon.

The bank of america chicago marathon is a world class running event returning to the streets of chicago on sunday, october 8, 2023. It will be a special race with organisers planning activities to honour the late kelvin kiptum.