Chicago Half Marathon 2025 Registration Dates. Here are some of our other events you could participate in: Registration for the chicago half marathon 2025 will likely open in [insert month, e.g., spring] of 2024 through the official race website.

Registration for the chicago half marathon 2025 will likely open in [insert month, e.g., spring] of 2024 through the official race website. Registration for the 2025 bank of america chicago marathon opens tuesday.