In 49 days · Sat, Oct 3, 2026
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Saturday, October 3rd, 2026
209 S Ashley St, Ann Arbor MI
Marathon · Half · 10K · 5K
52–69°F · some rain risk
See last 10 years
On this date: rain 2 of the last 10 years
2025
51–84°F
dry
2024
51–73°F
dry
2023
57–82°F
dry
2022
41–63°F
dry
2021
64–74°F
rain
2020
40–56°F
dry
2019
55–70°F
rain
2018
53–79°F
dry
2017
56–80°F
dry
2016
52–66°F
dry
Best months to race in Michigan →
About this race
Event Overview
Join us in downtown Ann Arbor for the 15th running of the Trinity Health Probility Ann Arbor Marathon!
Choose your challenge: marathon, half marathon, marathon relay, Climate Week 10K, Climate Week 5K, or one of our free kids races. Whether you're walking your first 5K or racing your 50th marathon, there's a place for you on the starting line.
Climate Week 5K & 10K
- Goal: Creating a healthier, more sustainable future for our community and our planet.
- Participants: Runners, walkers, the University of Michigan, and the City of Ann Arbor.
- Start Location: All distance events start in downtown Ann Arbor.
- Experience: Vibrant streets of downtown, University of Michigan campus, and beautiful natural areas.
Course Information
The USATF-certified marathon course is a qualifier for both the Boston Marathon and the TCS New York City Marathon.
Discover Ann Arbor
- Local Attractions: Enjoy locally owned restaurants, independent bookstores, theaters, galleries, and museums.
- Tree Town USA: Experience the charm of Ann Arbor whether you are a local or visiting.
- Distance: Easily accessible attractions within reach of the Ann Arbor Marathon.
- Information: Learn more at VisitAnnArbor.org !
Event Highlight
Every Body. Every Pace. Every Race.
Course map
Train with a club
Run clubs near Ann Arbor to train with before race day.
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