Ann Arbor Marathon

Trinity Health Probility Ann Arbor Marathon, Ann Arbor MI, October 3 and 4, 2026

The Trinity Health Probility Ann Arbor Marathon is a multi-event weekend held in Ann Arbor, Michigan, supporting local mental health charities through the "E-Race the Stigma" campaign. The event offers both in-person and virtual race options for adults and children and includes competitive and noncompetitive divisions.

Distances and event formats:

• Marathon (26.2 miles) and Early Start option
• Marathon Relay (Women, Men, Mixed, 50+)
• Half Marathon (13.1 miles) and Half Marathon Walk
• 10K
• 5K
• Kids Run Half Mile (10 and under) and Kids Run .262 (8 and under)
• Virtual Marathon, Virtual Half Marathon, Virtual 10K, Virtual 5K
• Epic Pace Team entries by invitation only

All distance events start in downtown Ann Arbor at 209 S Ashley St. Course routing passes through downtown streets and the University of Michigan campus, with stretches along the Huron River, Gallup Park, and through Nichols Arboretum before returning to campus and a downtown finish. The Ann Arbor Marathon course is USATF certified and serves as a qualifier.

The event includes specific race provisions such as relay categories, a half-marathon walking division, age rules for kids runs, and free child entries when paired with a paid adult under stated conditions. Visit the organization's website for the most recent information.

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