2025 London Marathon Route Map Pdf. Thousands of runners head north on columbus avenue in grant park to start the chicago marathon on oct. October 11, 2025 at 7:07 a.m.

More than a dozen street closures will be in effect for the 2025 chicago marathon, which travels through 29 chicago neighborhoods published october 11, 2025 • updated on. October 11, 2025 at 7:07 a.m.