Set for October 12, 2025, the Probility Ann Arbor Marathon returns to downtown Ann Arbor along the Huron River, Gallup Park, and through the iconic University of Michigan campus—including Nichols Arboretum—looping back to finish on Main Street. The event includes a full marathon (26.2 miles), half marathon (13.1), 10 km, 5 km, as well as relay and half-marathon walking divisions, welcoming runners of all levels. Certified by USATF and a qualifier for the Boston and New York Marathons, the race is also recognized as Michigan’s state championship event. Organized by Epic Races in partnership with the Rotary Club, it supports the “E‑Race the Stigma” mental-health initiative and features chip timing, aid stations every 1.5 miles, early-start options, and a festive race village near the University of Michigan Stadium.
Races
Marathon
Marathon
Marathon
Half Marathon
Half Marathon
10 km
10 km
5 km
5 km
Race Date:
12 October, 2025
The Probility Ann Arbor Marathon is a USATF‑certified, Boston-qualifying full marathon featuring a two-loop road course launched from downtown Ann Arbor (near the Michigan Stadium) through the University of Michigan campus, Nichols Arboretum, Gallup Park, and along the Huron River. Organized by Epic Races, LLC / Probility Marathon, it takes place on Sunday, 12 October 2025, with start and finish at 209 S Ashley St (near Michigan Stadium), Ann Arbor, Michigan.
Weather based on historical averages.
FAQs
What is the Probility Ann Arbor Marathon?
How long is the Probility Ann Arbor Marathon?
Where does the Probility Ann Arbor Marathon take place?
What is the elevation gain of the Probility Ann Arbor Marathon?
How can I prepare for the Probility Ann Arbor Marathon?
How do I choose the right training plan for the Probility Ann Arbor Marathon?
The Probility Ann Arbor Marathon is a USATF‑certified, Boston-qualifying full marathon featuring a two-loop road course launched from downtown Ann Arbor (near the Michigan Stadium) through the University of Michigan campus, Nichols Arboretum, Gallup Park, and along the Huron River. Organized by Epic Races, LLC / Probility Marathon, it takes place on Sunday, 12 October 2025, with start and finish at 209 S Ashley St (near Michigan Stadium), Ann Arbor, Michigan.
The Probility Ann Arbor Marathon is 42km long.
The Probility Ann Arbor Marathon takes place in Ann Arbor, MI, USA.
Runna classifies the Probility Ann Arbor Marathon elevation profile as Rolling.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Probility Ann Arbor Marathon?
The Probility Ann Arbor Marathon is a USATF‑certified, Boston-qualifying full marathon featuring a two-loop road course launched from downtown Ann Arbor (near the Michigan Stadium) through the University of Michigan campus, Nichols Arboretum, Gallup Park, and along the Huron River. Organized by Epic Races, LLC / Probility Marathon, it takes place on Sunday, 12 October 2025, with start and finish at 209 S Ashley St (near Michigan Stadium), Ann Arbor, Michigan.
How long is the Probility Ann Arbor Marathon?
The Probility Ann Arbor Marathon is 42km long.
Where does the Probility Ann Arbor Marathon take place?
The Probility Ann Arbor Marathon takes place in Ann Arbor, MI, USA.
What is the elevation gain of the Probility Ann Arbor Marathon?
Runna classifies the Probility Ann Arbor Marathon elevation profile as Rolling.
How can I prepare for the Probility Ann Arbor Marathon?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Probility Ann Arbor Marathon?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
More
Sport:
Running
Tags:
Kid friendly
Virtual
Relay
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Probility Ann Arbor Marathon 2025 or Epic Races, LLC. All event details are based on publicly available information and are provided solely to help users discover running events. Runna does not use any official logos, images, or proprietary content from this event or its organiser. Any trademarks or names mentioned are used descriptively to identify the event in a factual manner. For the most accurate and up to date information (including to register or purchase an entry to the event), please visit the Probility Ann Arbor Marathon 2025 website.
