Probility Ann Arbor Marathon: 5k • 10k • Half-marathon • Full Marathon • marathon Relay • Half-marathon Walk

Experience the vibrant Probility Ann Arbor Marathon weekend from October 11 to 12, 2025, in Ann Arbor, Michigan, offering a variety of races including a 5K, 10K, half-marathon, full marathon, and marathon relay through scenic routes like the University of Michigan campus, Huron River, Gallup Park, and Nichols Arboretum. This 14th annual USATF certified marathon serves as a qualifier for prestigious races like the Boston and New York Marathons while supporting mental health awareness with the theme of E-Racing the Stigma. Whether you're a seasoned runner or beginner, join this uplifting event for a chance to enjoy fall scenery and contribute to a great cause in Tree Town USA.