Ann Arbor Marathon
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Trinity Health Probility Ann Arbor Marathon : October 3–4, 2026
The Trinity Health Probility Ann Arbor Marathon is a two-day running event held in Ann Arbor, Michigan. It features a range of distance options and race formats and supports local mental health charities through the E-Race the Stigma initiative. All distance events start in downtown Ann Arbor at 209 S Ashley St.
Course routes pass through downtown and the University of Michigan campus, and the marathon, half-marathon, and 10K include sections along the Huron River, Gallup Park, and through Nichols Arboretum before returning to campus and downtown. The marathon course is USATF certified.
Distances and event formats include:
- Marathon (26.2 miles)
- Marathon Relay (women, men, mixed, 50+)
- Half Marathon (13.1 miles)
- Half-Marathon Walk (13.1 miles)
- 10K (6.2 miles)
- 5K (3.1 miles)
- Kids runs for ages 10 and under and 8 and under
- Virtual marathon, half, 10K, and 5K
- Pace teams and invitation-only Epic Pace Team entries
The event lists in-person and virtual participation options and organizes youth races at the expo or packet pickup. Some relay and pace-team categories have specific eligibility or invitation requirements. Visit the organization's website for the most recent information.
