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| Event | Distance | When | Entry fee | Cap |
|---|---|---|---|---|
| Saturday, Oct 3, 2026 | ||||
| Kids Run .262 - 8 and under only | Kids | Oct 3, 202611:00 AM | $30 | – |
| Kids Run .262 (8 and under only, free with paid adult) - must enter race confirmation number | Kids | Oct 3, 202611:00 AM | Free | – |
| Kids Run Half Mile - 10 and under only | Kids | Oct 3, 202611:00 AM | $30 | – |
| Kids Run Half Mile (10 and under only, free with paid adult) - must enter race confirmation number | Kids | Oct 3, 202611:00 AM | Free | – |
| Sunday, Oct 4, 2026 | ||||
| Early Start Option: Marathon (26.2) | Marathon | Oct 4, 20266:00 AM | $160 | – |
| Epic Pace Team - 10K - BY INVITATION ONLY | 10K | Oct 4, 20268:00 AM | Free | – |
| Epic Pace Team - 5K - BY INVITATION ONLY | 5K | Oct 4, 20268:00 AM | Free | – |
| Epic Pace Team - Half-Marathon BY INVITATION ONLY | Half Marathon | Oct 4, 20268:00 AM | Free | – |
| Epic Pace Team - Marathon BY INVITATION ONLY | Marathon | Oct 4, 20268:00 AM | Free | – |
| Half Marathon (13.1) | Half Marathon | Oct 4, 20268:00 AM | $140 | – |
| Half-Marathon (13.1) Walk | Half Marathon | Oct 4, 20268:00 AM | $140 | – |
| Marathon (26.2) | Marathon | Oct 4, 20268:00 AM | $160 | – |
| Marathon Relay (Women, Men, Mixed, 50+) | Relay | Oct 4, 20268:00 AM | $320 | – |
| Climate Week 10K presented by the City of Ann Arbor | 10K | Oct 4, 20269:00 AM | $80 | – |
| Climate Week 5K presented by the University of Michigan | 5K | Oct 4, 20269:15 AM | $62 | – |
| Virtual 10KVirtual | 10K | Oct 4, 20268:00 AM | $40 | – |
| Virtual 5KVirtual | 5K | Oct 4, 20268:00 AM | $40 | – |
| Virtual Half MarathonVirtual | Half Marathon | Oct 4, 20268:00 AM | $60 | – |
| Virtual MarathonVirtual | Marathon | Oct 4, 20268:00 AM | $60 | – |
Entry fees exclude processing fees. Prices and dates come from the race's registration page and refresh nightly.
Online registration closes Oct 4, 2026, unless the race fills first.
At $160, entry is about 52 percent above a typical marathon in Michigan, which costs $105 right now.
A typical finisher at a marathon in Michigan runs 4:13:25, about 9:40 a mile, based on 13 races with published results. Women typically finish in 4:30:23 and men in 4:03:21.
Sunrise on race morning is at about 7:32 AM, and the Kids Run .262 - 8 and under only starts at 11:00 AM. The start sits about 940 feet above sea level.
Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.
209 S Ashley St, Ann Arbor, MI 48104
The pin marks the address the race lists, which is usually the start. Course maps are the organizers' own.
Aggregated from official results for Trinity Health Probility Ann Arbor Marathon. Individual finisher names are not stored here.
In 2025, the fastest tenth finished in 1:41:09 or better, the top quarter in 1:53:44, and half the field in 2:07:11; the last tenth came in after 2:42:11.
| Age | Women | Men |
|---|---|---|
| Under 20 | 1:46:04 | 1:45:28 |
| 20-29 | 1:34:32 | 1:14:34 |
| 30-39 | 1:41:37 | 1:27:11 |
| 40-49 | 1:45:30 | 1:32:54 |
| 50-59 | 1:59:24 | 1:34:37 |
| 60-69 | 2:18:56 | 1:54:25 |
Groups with fewer than five finishers are left out. Awards vary by race; check the race's rules.
Where a finish time would have placed in 2025.
Down 26 percent since 2021.
All events combined, from official results.
From 2021 to 2025, the field went from 522 to 810 finishers, and the median time rose from 2:03:27 to 2:07:11.
| Year | Finishers | Median | Fastest tenth | Winner |
|---|---|---|---|---|
| 2025 | 810 (+8%) | 2:07:11 | under 1:41:09 | 1:12:01 |
| 2024 | 751 (-5%) | 2:06:53 | under 1:42:53 | 1:15:32 |
| 2023 | 791 (+40%) | 2:06:23 | under 1:40:33 | 1:08:54 |
| 2022 | 567 (+9%) | 2:02:18 | under 1:40:43 | 1:17:27 |
| 2021 | 522 | 2:03:27 | under 1:38:34 | 1:11:58 |
From each year's official results for the Half Marathon; virtual options are left out.
About average for Michigan half marathons
The fastest quarter of the 2025 half marathon field finished under 1:53:44, against 1:52:52 in a typical Michigan half marathon, so times here are about average.
Compares the fastest quarter of each field, so walkers and first-timers do not skew it. It reflects the course and the field together: a flat course, cool weather, or a competitive crowd all make times faster.
Around October 3 the day usually runs from 52°F at dawn to 70°F in the afternoon, with measurable rain on about 17% of days. Cold snaps dip to 41°F and hot years reach 80°F.
Based on 75 days within a week of the date over the last 5 years, from historical weather for the start area. Not a forecast.
What the organizers of Trinity Health Probility Ann Arbor Marathon cover on their registration page, in brief.
Schedule and packet pickup
Saturday, October 3rd. Time Event. 11:00 a.m. Kids’ Run presented by Ann Arbor Sports Commission (all kids 10 and under race free compliments of Ann Arbor Sports Commission). 12:00 p.m. Trinity Health Probility Ann Arbor Marathon Expo. All…
Schedule and packet pickup
Plan on taking more than 5.5 hours to finish? Choose our early start option when you register! Please note that packet pickup opens at 7 a.m. and the start time for the early start option is 6am. This means that you will need to pick up…
Schedule and packet pickup
The excitement starts Saturday! October 3, 2026 • 12 – 4 p.m. 2|42 Community Center. 648 S Wagner Rd. in Ann Arbor. Your race weekend kicks off on Saturday with the Trinity Health Probility Ann Arbor Marathon expo. This free event is open…
Course
In 2024 we launched the half-marathon walking division. Walkers have 6.5 hours to complete the course and awards are given to the top 3 overall finishers in the male/female/non-binary divisions. Follow this simple 12-week training plan to…
Course
The Race Director reserves the right to modify the course at any time as necessary to ensure the safety of participants and volunteers or in response to construction, weather, or other conditions beyond our control. 2025 Trinity Health…
Course
Maps below are certified course maps for this event. The Race Director reserves the right to modify the course at any time as necessary to ensure the safety of participants and volunteers or in response to construction, weather, or other…
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Trinity Health Probility Marathon and Half Marathon
Climate Week 5K & 10K presented by the University of Michigan and City of Ann Arbor
Running toward a sustainable future
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.