Chicago Marathon Course Map 2025. Use chicago’s convenient and affordable cta rail system to cheer on your runner from start to finish at the 2025 bank of america chicago marathon. Course map for the bank of america chicago marathon, abbott world marathon majors road race.

Use chicago’s convenient and affordable cta rail system to cheer on your runner from start to finish at 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.