Chicago Half Marathon 2025 Registration Deadline. Plan your participation in the half marathon chicago 2025! The fourth annual half marathon which takes place june 1, 2025, is a unique race, giving runners the opportunity to traverse through chicago's west side neighborhoods,.
In its 47th year, the marathon will take place on sunday, october 12, 2025. Believe it or not, the application period has begun for entry into the 2025 chicago marathon.