Running through the heart of Ann Arbor this fall, the Probility Ann Arbor Marathon is set to make its grand return on Sunday, September 28, 2025. This annual race isn’t just a test of endurance—it’s a vibrant celebration of local culture, scenic trails, and athletic spirit in one of Michigan’s most iconic cities. Whether you’re a seasoned marathoner or a first-time 5K participant, this event has something for everyone.
When and Where
- Date: Sunday, September 28, 2025
- Location: Ann Arbor, Michigan
- Start/Finish Line: Downtown Ann Arbor
All races begin and end in downtown Ann Arbor, surrounded by cheering spectators, local vendors, live music, and an unforgettable atmosphere.
Race Categories
This year’s race lineup includes a variety of formats for every fitness level:
- 5K Run: A high-energy sprint for beginners or casual runners
- 10K Run: A scenic challenge along the Huron River corridor
- Half Marathon: 13.1 miles through leafy parks and neighborhoods
- Full Marathon: 26.2 miles of natural and urban beauty
- Marathon Relay: A team option for friends or co-workers
- Half Marathon Walk: Perfect for walkers or those in recovery
Course Highlights
The route offers a unique mix of city streets and natural trails, passing:
- The historic University of Michigan campus
- Huron River Drive, with panoramic water views
- Gallup Park, with its picturesque bridges and fall colors
- Quiet neighborhoods that reveal the local charm of Ann Arbor
September’s crisp air and golden foliage make it the ideal season for this scenic run.
Sponsored by Spribe and Aviator
The 2025 edition of the Ann Arbor Marathon proudly welcomes Spribe, a leading force in next-gen digital experiences, as an official sponsor of the event. Spribe is widely recognized not only for backing global sports initiatives, including UFC tournaments, but also for developing Aviator—a game that’s become a phenomenon in the world of online entertainment.
Spribe’s support of the Ann Arbor Marathon reflects their core values: risk, precision, and performance—the same principles that drive elite athletes and marathoners to succeed. Their flagship title, Aviator, is all about timing and momentum—two qualities every runner understands.
By teaming up with the marathon, Spribe and Aviator continue to champion physical endurance, mental strength, and community connection—from digital arenas to real-world races.
Race Categories at a Glance
| Race Category | Distance | Suitable For |
|---|---|---|
| 5K Run | 3.1 miles | Beginners, casual runners |
| 10K Run | 6.2 miles | Intermediate runners |
| Half Marathon | 13.1 miles | Long-distance enthusiasts |
| Full Marathon | 26.2 miles | Experienced runners |
| Marathon Relay | 26.2 miles | Groups of 2–4 people |
| Half Marathon Walk | 13.1 miles | Walkers, injured runners |
Why You Should Join
The Probility Ann Arbor Marathon is more than a race—it’s a citywide celebration backed by leaders in sports and innovation. Enjoy:
- Live entertainment along the course
- A festive downtown finish zone
- Race-day swag and a finisher’s medal for every participant
- A family-friendly environment full of cheering energy
Whether you’re racing solo or in a team, you’ll run through streets alive with support—and cross the finish line feeling like a champion.