Trinity Health Probility Ann Arbor Marathon: 5K • 10K • Half-Marathon • Full Marathon • Marathon Relay • Half-Marathon Walk logo

Trinity Health Probility Ann Arbor Marathon: 5K • 10K • Half-Marathon • Full Marathon • Marathon Relay • Half-Marathon Walk

Trinity Health Probility Ann Arbor Marathon: 5K • 10K • Half-Marathon • Full Marathon • Marathon Relay • Half-Marathon Walk is a running race on October 3–4, 2026 in Ann Arbor, MI, with entry fees from $30 to $270.

Date
October 3–4, 2026 (72 days to go)
Price
$30–$270
Sport
Running
Register →

From the Organizer

                                               THE PROBILITY ANN ARBOR MARATHON

Take to the scenic streets of Ann Arbor to help E-Race the Stigma with the 16th running of the Trinity Health Probility Ann Arbor Marathon. With a variety of running events that appeal to all ages and abilities, you’ll find that the Ann Arbor Marathon is your ideal fall race event, whether you’re walking your first 5K or running your 50th marathon.  

RUN TREE TOWN.

All distance events — marathon, marathon relay, half marathon, 10K, and 5K — start in downtown Ann Arbor at 209 S Ashley St, Ann Arbor, MI 48104. Run through the vibrant streets of downtown Ann Arbor, then wind your way through the panoramic University of Michigan campus. The marathon, half-marathon, and 10K courses also encompass stretches along the Huron River and Gallup Park and through Nichols Arboretum before returning to campus and downtown. All races end with a spectacular downtown finish. The Ann Arbor Marathon course is USATF certified and serves as a qualifier for both the Boston and New York Marathons.

If you’re coming in from out of town, out of state, or out of the country — or even if you live in the Ann Arbor Area — you’ll enjoy discovering Tree Town USA! Ann Arbor features locally owned and operated restaurants and cafes, independent bookstores, theaters, art galleries, and museums (including the University of Michigan Museum of Art), all within reach of the Ann Arbor Marathon. Learn more at VisitAnnArbor.org!

E-RACE THE STIGMA

We are continuing our charity takeover!
In partnership with the Rotary Club of Ann Arbor we are committing all our fundraising efforts to organizations that help and support mental health and/or issues associated with mental health and play an active role in reducing the stigma surrounding mental illness.  You will learn about them during registration, and we hope you will choose to support one or many to help E-Race the Stigma!

Events

Kids Run Half Mile (10 and under only, free with paid adult) - must enter race confirmation number
Kids Run .262 (8 and under only, free with paid adult) - must enter race confirmation number
Kids Run .262 - 8 and under only$30
Kids Run Half Mile - 10 and under only$30
Epic Pace Team - 10K - BY INVITATION ONLY
Epic Pace Team - Half-Marathon BY INVITATION ONLY
Epic Pace Team - 5K - BY INVITATION ONLY
Epic Pace Team - Marathon BY INVITATION ONLY
Half Marathon (13.1)$120
Half-Marathon (13.1) Walk$120

Weather

Typical Conditions

It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.

Typical High

68°

Typical Low

43°

Chance of Rain

40%

Based on US Climate Normals data from Ann Arbor Se, 4 mi from the venue.

Sunrise 7:34 AMSunset 7:12 PMDaylight 11h 39m

Host City

About Ann Arbor, MI

Population

121,179

as of 2023

City Elevation

962 ft

Nearest Airport

DTW

Detroit Metropolitan Wayne County Airport · 22 mi

Time Zone

Eastern Time

From Endurance Grid

A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.

Race Location

Your Next Start Line

What Are You
Waiting For?

Every finish line starts with a single decision. Claim your spot at Trinity Health Probility Ann Arbor Marathon: 5K • 10K • Half-Marathon • Full Marathon • Marathon Relay • Half-Marathon Walk, put it on the calendar, and turn “someday” into a start date.

72

Days to train

Race
Trinity Health Probility Ann Arbor Marathon: 5K • 10K • Half-Marathon • Full Marathon • Marathon Relay • Half-Marathon Walk
Date
October 3–4, 2026

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From Endurance Grid

About This Sport

Endurance Grid is here to help you understand the sport, decide if it’s the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.

With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.

Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.

Read the Guide

Running

From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.

Plan your trip

Make it a Racecation

Coming from out of town? There's more to Ann Arbor than race day. We'll help you line up nearby lodging, flights, a rental car, and things to do so you can make the most of your racecation.

Plan your trip to Ann Arbor
Lodging
Flights
Rental Car
Activities

Frequently Asked Questions (FAQs)

What is the Trinity Health Probility Ann Arbor Marathon: 5K • 10K • Half-Marathon • Full Marathon • Marathon Relay • Half-Marathon Walk?+
Trinity Health Probility Ann Arbor Marathon: 5K • 10K • Half-Marathon • Full Marathon • Marathon Relay • Half-Marathon Walk is a running race held in Ann Arbor, Michigan on October 3, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
When and where is the Trinity Health Probility Ann Arbor Marathon: 5K • 10K • Half-Marathon • Full Marathon • Marathon Relay • Half-Marathon Walk?+
Saturday, October 3, 2026 in Ann Arbor, Michigan at 209 S Ashley St. Check the event page for exact start times and wave schedules.
How do I register for the Trinity Health Probility Ann Arbor Marathon: 5K • 10K • Half-Marathon • Full Marathon • Marathon Relay • Half-Marathon Walk?+
Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.

Trinity Health Probility Ann Arbor Marathon: 5K • 10K • Half-Marathon • Full Marathon • Marathon Relay • Half-Marathon Walk

Oct 3, 2026

Register →