Chicago Marathon 2025 Application Requirements. Believe it or not, the application period has begun for entry into the 2025 chicago marathon. Do you have a question about the 2025 bank of america chicago marathon event or application process?

Limited entries remain through the charity program and international tour program. These team places are often in high demand and as the charity has secured the entries ‘upfront’, there is an application process so they can vet and choose their team.