Chicago Marathon 2024 Sign Up Free. The 2024 bank of america chicago marathon is just weeks away, and preparations are already in motion ahead of one of the world’s largest races. 13, 2024, applicants can sign up on the marathon’s site by 2 p.m.
Here’s a rundown of the marathon—including registration information, facts and figures about field size, past winners, and weather—plus a review of the 2023 race. When is the 2025 bank of america chicago marathon?