Chicago Marathon Application 2025. Please view the frequently asked questions below to find the answers to your questions. The application period is open for 4 weeks and there are no exceptions for late entry, so you need to act on this now if you’d like to claim a.

In its 47th year, the marathon will take place on sunday, october 12, 2025. Apply below to become a play champion and run the 2025 bank of american chicago marathon!