About the Trinity Health Probility Ann Arbor Marathon
The course starts in downtown Ann Arbor and moves through the University of Michigan campus before reaching the Huron River corridor, Gallup Park, and Nichols Arboretum. Longer distances get the most of the route; shorter ones stay closer to downtown. All distances finish in the same downtown area, so there is a crowd there regardless of when you come through.
Marathon, half-marathon, and relay runners must pick up packets at the expo the day before, held at a community center on the south side of the city. The expo is open to the public and includes vendors, speakers, and a walkthrough of the route led by race staff. Shorter-distance runners have the option of picking up on race morning instead.
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Trinity Health Probility Ann Arbor Marathon 2025 Results
Going by the 2025 results, this is a decent-sized field, with a competitive front end and a big recreational middle.
Half Marathon Results · 2025
810finishers
1:12:01winner
2:07:11median
4:13:28cutoff
The Trinity Health Probility Ann Arbor Marathon has been held every year since at least 2013. That is as far back as RunSignup's records for this race go, so it may well be older.
How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Oct 25, 2026.
Distances & Start Times
26.2 Miles10/3/2027 08:00$87
26.2 Miles10/3/2027 06:00$87
26.2 Miles10/3/2027 08:00$173
13.1 Miles10/3/2027 08:00$76
13.1 Miles10/3/2027 08:00$76
10K10/3/2027 09:00$40
5K10/3/2027 09:15$30
Kids Run Half Mile (10 and under only, free with adult's paid race confirmation number)10/2/2027 11:00Free
0.5 Miles10/2/2027 11:00$15
Kids Run .262 (8 and under only, free with adult's paid race confirmation number)10/2/2027 11:00Free
0.26 Miles10/2/2027 11:00$15
26.2 Miles10/3/2027 08:00$62
13.1 Miles10/3/2027 08:00$62
6.2 Miles10/3/2027 08:00$42
3.1 Miles10/3/2027 08:00$42
26.2 Miles10/3/2027 08:00Free
13.1 Miles10/3/2027 08:00Free
10K10/3/2027 08:00Free
Epic Pace Team - 5K BY INVITATION ONLY10/3/2027 08:00Free
Going for a Time?
Set a goal and get a pace band: every mile split on a card sized for your phone lock screen, so race morning needs no math.
Not sure what to aim for? The marathon pace chart lists the pace for every finish time.
Where to Stay
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