2021 - Trinity Health Probility Ann Arbor Marathon: 5K • 10K • Half-Marathon • Full Marathon • Marathon Relay • Half-Marathon Walk
2021 distances
Running
Marathon (26.2)
Please check the official marathon web site, http://www.annarbormarathon.com, for full details and be sure to follow us on Facebook!
Marathon Relay (4-person relay, total miles 26.2)
Half Marathon
Please check the official marathon web site, http://www.annarbormarathon.com, for full details and be sure to follow us on Facebook!
10K
Please check the official marathon web site, http://www.annarbormarathon.com, for full details and be sure to follow us on Facebook!
5K
Please check the official marathon web site, http://www.annarbormarathon.com, for full details and be sure to follow us on Facebook!
Virtual Marathon
Not able to make it to Ann Arbor on race day? Hold your own Probility Ann Arbor Marathon at the time and place of your choosing!
Virtual Half Marathon
Not able to make it to Ann Arbor on race day? Hold your own Probility Ann Arbor Half Marathon at the time and place of your choosing!
Virtual 10K
Not able to make it to Ann Arbor on race day? Hold your own Probility Ann Arbor 10K at the time and place of your choosing!
Virtual 5K
Not able to make it to Ann Arbor on race day? Hold your own Probility Ann Arbor 5K at the time and place of your choosing!
Kids Race- Please note Kids Race is 10/23 before the expo
Please check the official marathon web site, http://www.annarbormarathon.com, for full details and be sure to follow us on Facebook!
Ann Arbor Track Club Pace Team - 10K - BY INVITATION ONLY
Race-day weather
Conditions on October 24, 2021 — historical Open-Meteo data.
The sun rises at 7:58 AM and sets at 6:39 PM local time (EDT) in Ann Arbor on October 24, 2021 — 10h 40m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
Reviews
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2021 results — Trinity Health Probility Ann Arbor Marathon: 5K • 10K • Half-Marathon • Full Marathon • Marathon Relay • Half-Marathon Walk
1,088 finishers across 10 distances · leading places in the Marathon (26.2)
| Place | Name | Time | Pace |
|---|---|---|---|
| 1 | Raj Hathiramani | 3:18:02 | 7:34 /mi |
Every finisher is on the results page, filterable by distance, gender and age group.
Other races near Ann Arbor
Different organizers, within 40 miles, in the next three months
Trinity Health Probility Ann Arbor Marathon: 5K • 10K • Half-Marathon • Full Marathon • Marathon Relay • Half-Marathon Walk
Turner's Trot Annual 5K Walk/Run
The Rat Race 5k Run/Walk
UM Swe Engineered to Run Charity 5k
🏃 Plan Your Next Race in Ann Arbor
Find upcoming events by distance:
- Ann Arbor 5K Races 27 races
- 10K Run Events in Ann Arbor 11 races
- Ann Arbor Half Marathons 6 races
- Ann Arbor Running Calendar 2026 37 races
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 37 Ann Arbor events
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