Probility Ann Arbor Marathon

The Probility Ann Arbor Marathon brings a marathon (26.2 miles / 42.2 km), a half marathon (13.1 miles / 21.1 km), a 10K and a 5K to Ann Arbor, Michigan, on October 2–3, 2027, with options for every age and ability. The marathon, the marathon relay (women, men, mixed and 50+ teams), the half marathon and the half marathon walk all start at 8:00 a.m. on October 3, followed by the 10K at 9:00 a.m. and the 5K at 9:15 a.m. The Kids Run Half Mile is held on October 2 at 11:00 a.m.

Starting downtown, the course winds through lively streets, the University of Michigan campus and local parks, contrasting city bustle with green space. Beyond the racing, the event raises awareness and funds for mental health initiatives in partnership with the Rotary Club of Ann Arbor, encouraging mutual support and working to reduce the stigma around mental illness. Every stride supports a cause championed by the local community.