Chicago Marathon 2025 Application Deadline
Chicago Marathon 2025 Application Deadline. In its 47th year, the marathon will take place on sunday, october 12, 2025. The application period is open for 4 weeks and there are no exceptions for late entry, so you need.
The application window for next year’s race is now open and will remain so until thursday, november 21 at 2pm. Applications are reviewed on a rolling basis, so we recommend applying as soon as possible.