Trinity Health Probility Ann Arbor Marathon
Ann Arbor's fall marathon links downtown, the University of Michigan, Huron River paths, and rolling park miles on a certified Boston qualifier.
Quick facts
- Certified Boston-qualifying marathon.
- University of Michigan, Huron River, and arboretum scenery.
- Full marathon, relay, half marathon, 10K, and 5K weekend.
Is registration open for the 2026 Trinity Health Probility Ann Arbor Marathon?
Registration for the 2026 Trinity Health Probility Ann Arbor Marathon is open.
About the Trinity Health Probility Ann Arbor Marathon
The Ann Arbor Marathon is a multi-distance fall weekend centered on downtown Ann Arbor and the University of Michigan. The full marathon pairs a city race atmosphere with river and park sections.
Course
The certified road course moves through campus, beside the Huron River, and through Gallup Park and Nichols Arboretum. Rolling terrain and late climbs make even pacing more important than the urban setting might suggest.
Race-day weather
Early October in Ann Arbor usually starts cool and can turn mild by late morning. Rain and autumn wind are possible, so layers that can be shed are useful.
Past Trinity Health Probility Ann Arbor Marathon dates and results
| Year | Date | Status | Results |
|---|---|---|---|
| 2026 | Sunday, October 4, 2026 | Upcoming | — |
| 2025 | Sunday, October 12, 2025 | Completed | Open results |
| 2024 | — | Completed | Open results |
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Trinity Health Probility Ann Arbor Marathon FAQ
When is the Trinity Health Probility Ann Arbor Marathon?
The 2026 Trinity Health Probility Ann Arbor Marathon is on Sunday, October 4, 2026.
Is registration open for the 2026 Trinity Health Probility Ann Arbor Marathon?
Registration for the 2026 Trinity Health Probility Ann Arbor Marathon is open. View the official registration details at runsignup.com.
Is Trinity Health Probility Ann Arbor Marathon a Boston qualifier?
Yes. Trinity Health Probility Ann Arbor Marathon is a Boston Marathon qualifier. To use the result, you must run the certified full-marathon course within the qualifying window and meet the current standard for your age and gender. Meeting the standard lets you apply but does not guarantee entry, and net-downhill courses can receive a time adjustment under current B.A.A. rules. Review the Boston qualifying times and downhill-course rules, or browse upcoming Boston qualifier marathons.
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