Event: Marathon (26.2)
Open to ages 12 - 100.
Event Date: Sunday October 1, 2023
Start Time: 8:00am EDT
End Time: 2:00pm EDT
Price: $120.00 Race Fee + $8.96 SignUp Fee
Registration: Price increases to $130.00 after March 31, 2023 at 11:59pm EDT
+ Show− Hide Registration Details
Registration Starting Registration Ending Price
January 1, 2023, 12:00am EST March 31, 2023, 11:59pm EDT $120.00 Race Fee + $8.96 SignUp Fee
April 1, 2023, 12:00am EDT June 30, 2023, 11:59pm EDT $130.00 Race Fee + $9.54 SignUp Fee
July 1, 2023, 12:00am EDT August 31, 2023, 11:59pm EDT $135.00 Race Fee + $9.83 SignUp Fee
September 1, 2023, 12:00am EDT September 23, 2023, 11:59pm EDT $140.00 Race Fee + $10.12 SignUp Fee
September 24, 2023, 12:00am EDT October 1, 2023, 11:59pm EDT $150.00 Race Fee + $10.70 SignUp Fee
Event: U of M Student Marathon (students only, 26.2)
This division is for University of Michigan students only! Participants in this division will be awarded top 3 overall male/female/nonbinary, but will not be excluded from the general overall and age-group awards.
Event Date: Sunday October 1, 2023
Start Time: 8:00am EDT
End Time: 2:00pm EDT
Price: $90.00 Race Fee + $7.22 SignUp Fee
Registration: Price increases to $97.50 after March 31, 2023 at 11:59pm EDT
+ Show− Hide Registration Details
Registration Starting Registration Ending Price
January 1, 2023, 12:00am EST March 31, 2023, 11:59pm EDT $90.00 Race Fee + $7.22 SignUp Fee
April 1, 2023, 12:00am EDT June 30, 2023, 11:59pm EDT $97.50 Race Fee + $7.66 SignUp Fee
July 1, 2023, 12:00am EDT August 31, 2023, 11:59pm EDT $101.25 Race Fee + $7.87 SignUp Fee
September 1, 2023, 12:00am EDT September 23, 2023, 11:59pm EDT $105.00 Race Fee + $8.09 SignUp Fee
September 24, 2023, 12:00am EDT October 1, 2023, 11:59pm EDT $112.50 Race Fee + $8.53 SignUp Fee
Event: Early Start Option: Marathon (26.2)
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 6 a.m. which is the same time as the early start option.  This means that you will need to pick up your packet at the expo the day before the race.

We will record your start time as 6 a.m.

You will need to have a headlamp and any hydration that you will need before 8:00 a.m when the course officially opens.

Remember that the course will be marked, but there will not be any police or volunteers on the course until 8:00 a.m. so you will need to follow traffic laws and it will be good to be familiar with the course.

The course will close promptly at 2 p.m.  At that time, if you are still on the course, you will need to move to the sidewalks.  You, of course, may finish the race, but the finish area will begin cleaning up.
Event Date: Sunday October 1, 2023
Start Time: 6:00am EDT
End Time: 2:00pm EDT
Price: $120.00 Race Fee + $8.96 SignUp Fee
Registration: Price increases to $130.00 after March 31, 2023 at 11:59pm EDT
+ Show− Hide Registration Details
Registration Starting Registration Ending Price
January 1, 2023, 12:00am EST March 31, 2023, 11:59pm EDT $120.00 Race Fee + $8.96 SignUp Fee
April 1, 2023, 12:00am EDT June 30, 2023, 11:59pm EDT $130.00 Race Fee + $9.54 SignUp Fee
July 1, 2023, 12:00am EDT August 31, 2023, 11:59pm EDT $135.00 Race Fee + $9.83 SignUp Fee
September 1, 2023, 12:00am EDT September 23, 2023, 11:59pm EDT $140.00 Race Fee + $10.12 SignUp Fee
September 24, 2023, 12:00am EDT October 1, 2023, 11:59pm EDT $150.00 Race Fee + $10.70 SignUp Fee
Event: Marathon Relay (Mixed, Male, Female Categories)
Event Date: Sunday October 1, 2023
Start Time: 8:00am EDT
End Time: 2:00pm EDT
Price: $220.00 Race Fee + $14.76 SignUp Fee
Registration: Price increases to $240.00 after March 31, 2023 at 11:59pm EDT
+ Show− Hide Registration Details
Registration Starting Registration Ending Price
January 1, 2023, 12:00am EST March 31, 2023, 11:59pm EDT $220.00 Race Fee + $14.76 SignUp Fee
April 1, 2023, 12:00am EDT June 30, 2023, 11:59pm EDT $240.00 Race Fee + $15.92 SignUp Fee
July 1, 2023, 12:00am EDT August 31, 2023, 11:59pm EDT $270.00 Race Fee + $15.50 SignUp Fee
September 1, 2023, 12:00am EDT September 23, 2023, 11:59pm EDT $290.00 Race Fee + $16.50 SignUp Fee
September 24, 2023, 12:00am EDT October 1, 2023, 11:59pm EDT $310.00 Race Fee + $17.50 SignUp Fee
Event: Half Marathon (13.1)
Open to ages 10 - 100.
Event Date: Sunday October 1, 2023
Start Time: 8:00am EDT
End Time: 2:00pm EDT
Price: $95.00 Race Fee + $7.51 SignUp Fee
Registration: Price increases to $110.00 after March 31, 2023 at 11:59pm EDT
+ Show− Hide Registration Details
Registration Starting Registration Ending Price
January 1, 2023, 12:00am EST March 31, 2023, 11:59pm EDT $95.00 Race Fee + $7.51 SignUp Fee
April 1, 2023, 12:00am EDT June 30, 2023, 11:59pm EDT $110.00 Race Fee + $8.38 SignUp Fee
July 1, 2023, 12:00am EDT August 31, 2023, 11:59pm EDT $120.00 Race Fee + $8.96 SignUp Fee
September 1, 2023, 12:00am EDT September 23, 2023, 11:59pm EDT $125.00 Race Fee + $9.25 SignUp Fee
September 24, 2023, 12:00am EDT October 1, 2023, 11:59pm EDT $130.00 Race Fee + $9.54 SignUp Fee
Event: U of M Student Half Marathon (13.1, students only)
This division is for University of Michigan students only! Participants in this division will be awarded top 3 overall male/female/nonbinary, but will not be excluded from the general overall and age-group awards.
Event Date: Sunday October 1, 2023
Start Time: 8:00am EDT
End Time: 2:00pm EDT
Price: $71.25 Race Fee + $6.13 SignUp Fee
Registration: Price increases to $82.50 after March 31, 2023 at 11:59pm EDT
+ Show− Hide Registration Details
Registration Starting Registration Ending Price
January 1, 2023, 12:00am EST March 31, 2023, 11:59pm EDT $71.25 Race Fee + $6.13 SignUp Fee
April 1, 2023, 12:00am EDT June 30, 2023, 11:59pm EDT $82.50 Race Fee + $6.79 SignUp Fee
July 1, 2023, 12:00am EDT August 31, 2023, 11:59pm EDT $90.00 Race Fee + $7.22 SignUp Fee
September 1, 2023, 12:00am EDT September 23, 2023, 11:59pm EDT $93.75 Race Fee + $7.44 SignUp Fee
September 24, 2023, 12:00am EDT October 1, 2023, 11:59pm EDT $97.50 Race Fee + $7.66 SignUp Fee
Event: 10K
Open to ages 10 - 100.
Event Date: Sunday October 1, 2023
Start Time: 8:20am EDT
End Time: 2:00pm EDT
Price: $55.00 Race Fee + $5.19 SignUp Fee
Registration: Price increases to $60.00 after March 31, 2023 at 11:59pm EDT
+ Show− Hide Registration Details
Registration Starting Registration Ending Price
January 1, 2023, 12:00am EST March 31, 2023, 11:59pm EDT $55.00 Race Fee + $5.19 SignUp Fee
April 1, 2023, 12:00am EDT June 30, 2023, 11:59pm EDT $60.00 Race Fee + $5.48 SignUp Fee
July 1, 2023, 12:00am EDT August 31, 2023, 11:59pm EDT $65.00 Race Fee + $5.77 SignUp Fee
September 1, 2023, 12:00am EDT September 23, 2023, 11:59pm EDT $70.00 Race Fee + $6.06 SignUp Fee
September 24, 2023, 12:00am EDT October 1, 2023, 11:59pm EDT $75.00 Race Fee + $6.35 SignUp Fee
Event: U of M Student 10K (students only)
This division is for University of Michigan students only! Participants in this division will be awarded top 3 overall male/female/nonbinary, but will not be excluded from the general overall and age-group awards.
Event Date: Sunday October 1, 2023
Start Time: 8:00am EDT
End Time: 2:00pm EDT
Price: $41.25 Race Fee + $4.39 SignUp Fee
Registration: Price increases to $45.00 after March 31, 2023 at 11:59pm EDT
+ Show− Hide Registration Details
Registration Starting Registration Ending Price
January 1, 2023, 12:00am EST March 31, 2023, 11:59pm EDT $41.25 Race Fee + $4.39 SignUp Fee
April 1, 2023, 12:00am EDT June 30, 2023, 11:59pm EDT $45.00 Race Fee + $4.61 SignUp Fee
July 1, 2023, 12:00am EDT August 31, 2023, 11:59pm EDT $48.75 Race Fee + $4.83 SignUp Fee
September 1, 2023, 12:00am EDT September 23, 2023, 11:59pm EDT $52.50 Race Fee + $5.05 SignUp Fee
September 24, 2023, 12:00am EDT October 1, 2023, 11:59pm EDT $56.25 Race Fee + $5.26 SignUp Fee
Event: 5K
Event Date: Sunday October 1, 2023
Start Time: 8:20am EDT
End Time: 2:00pm EDT
Price: $42.00 Race Fee + $4.44 SignUp Fee
Registration: Price increases to $45.00 after March 31, 2023 at 11:59pm EDT
+ Show− Hide Registration Details
Registration Starting Registration Ending Price
January 1, 2023, 12:00am EST March 31, 2023, 11:59pm EDT $42.00 Race Fee + $4.44 SignUp Fee
April 1, 2023, 12:00am EDT June 30, 2023, 11:59pm EDT $45.00 Race Fee + $4.61 SignUp Fee
July 1, 2023, 12:00am EDT August 31, 2023, 11:59pm EDT $50.00 Race Fee + $4.90 SignUp Fee
September 1, 2023, 12:00am EDT September 23, 2023, 11:59pm EDT $55.00 Race Fee + $5.19 SignUp Fee
September 24, 2023, 12:00am EDT October 1, 2023, 11:59pm EDT $60.00 Race Fee + $5.48 SignUp Fee
Event: U of M Student 5K (students only)
This division is for University of Michigan students only! Participants in this division will be awarded top 3 overall male/female/nonbinary, but will not be excluded from the general overall and age-group awards.
Event Date: Sunday October 1, 2023
Start Time: 8:00am EDT
End Time: 2:00pm EDT
Price: $31.50 Race Fee + $3.83 SignUp Fee
Registration: Price increases to $33.75 after March 31, 2023 at 11:59pm EDT
+ Show− Hide Registration Details
Registration Starting Registration Ending Price
January 1, 2023, 12:00am EST March 31, 2023, 11:59pm EDT $31.50 Race Fee + $3.83 SignUp Fee
April 1, 2023, 12:00am EDT June 30, 2023, 11:59pm EDT $33.75 Race Fee + $3.96 SignUp Fee
July 1, 2023, 12:00am EDT August 31, 2023, 11:59pm EDT $37.50 Race Fee + $4.18 SignUp Fee
September 1, 2023, 12:00am EDT September 23, 2023, 11:59pm EDT $41.25 Race Fee + $4.39 SignUp Fee
September 24, 2023, 12:00am EDT October 1, 2023, 11:59pm EDT $45.00 Race Fee + $4.61 SignUp Fee
Event: 19-Mile Training Run
Training for an October or November marathon? This date fits perfectly for many planned 19 or 20 mile training runs. Train with 1000 of your closest friends, with aid stations, portable toilets, and fans along the way.

This 19-mile training run is a combo of the Ann Arbor 10K and the Ann Arbor 13.1. You will earn all of the race swag, including the long-sleeved T-shirt, finisher's medal, and post-race food!  It will be the most fun you have had on a training run - ever!
Event Date: Sunday October 1, 2023
Start Time: 8:00am EDT
End Time: 2:00pm EDT
Price: $96.00 Race Fee + $7.57 SignUp Fee
Registration: Price increases to $100.00 after March 31, 2023 at 11:59pm EDT
+ Show− Hide Registration Details
Registration Starting Registration Ending Price
January 1, 2023, 12:00am EST March 31, 2023, 11:59pm EDT $96.00 Race Fee + $7.57 SignUp Fee
April 1, 2023, 12:00am EDT June 30, 2023, 11:59pm EDT $100.00 Race Fee + $7.80 SignUp Fee
July 1, 2023, 12:00am EDT August 31, 2023, 11:59pm EDT $120.00 Race Fee + $8.96 SignUp Fee
September 1, 2023, 12:00am EDT September 23, 2023, 11:59pm EDT $125.00 Race Fee + $9.25 SignUp Fee
September 24, 2023, 12:00am EDT October 1, 2023, 11:59pm EDT $130.00 Race Fee + $9.54 SignUp Fee
Event: U of M Student 19-Mile Training Run (students only)
This division is for University of Michigan students only! Participants in this division will be awarded top 3 overall male/female/nonbinary, but will not be excluded from the general overall and age-group awards.
Event Date: Sunday October 1, 2023
Start Time: 8:00am EDT
End Time: 2:00pm EDT
Price: $71.25 Race Fee + $6.13 SignUp Fee
Registration: Price increases to $82.50 after March 31, 2023 at 11:59pm EDT
+ Show− Hide Registration Details
Registration Starting Registration Ending Price
January 1, 2023, 12:00am EST March 31, 2023, 11:59pm EDT $71.25 Race Fee + $6.13 SignUp Fee
April 1, 2023, 12:00am EDT June 30, 2023, 11:59pm EDT $82.50 Race Fee + $6.79 SignUp Fee
July 1, 2023, 12:00am EDT August 31, 2023, 11:59pm EDT $90.00 Race Fee + $7.22 SignUp Fee
September 1, 2023, 12:00am EDT September 23, 2023, 11:59pm EDT $93.75 Race Fee + $7.44 SignUp Fee
September 24, 2023, 12:00am EDT October 1, 2023, 11:59pm EDT $97.50 Race Fee + $7.66 SignUp Fee
Event: Kids' "Marathon" (.262) and "Half-Marathon" (.131)
Kids 12 and under choose on race day to run .262 or .131. Finisher medals and post race treats for all!
Open to ages 12 and under.
Event Date: Saturday September 30, 2023
Start Time: 2:00pm EDT
End Time: 2:30pm EDT
Event: Kids Race Free 5K (10 and under)
Kids 10 and under can sign up for the 5K for FREE once a Parent/Guardian has signed up for another event. Simply provide the Parent/Guardian's registration number when completing the Kids' registration questionnaire.
Open to ages 10 and under.
Event Date: Sunday October 1, 2023
Start Time: 8:00am EDT
Event: 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!
Price: $60.00 Race Fee + $5.48 SignUp Fee
Registration: Registration ends September 10, 2023 at 5:00pm EDT
+ Show− Hide Registration Details
Registration Starting Registration Ending Price
January 1, 2023, 12:00am EST September 10, 2023, 5:00pm EDT $60.00 Race Fee + $5.48 SignUp Fee
Event: 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!
Price: $60.00 Race Fee + $5.48 SignUp Fee
Registration: Registration ends September 10, 2023 at 5:00pm EDT
+ Show− Hide Registration Details
Registration Starting Registration Ending Price
January 1, 2023, 12:00am EST September 10, 2023, 5:00pm EDT $60.00 Race Fee + $5.48 SignUp Fee
Event: 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!
Price: $40.00 Race Fee + $4.32 SignUp Fee
Registration: Registration ends September 10, 2023 at 5:00pm EDT
+ Show− Hide Registration Details
Registration Starting Registration Ending Price
January 1, 2023, 12:00am EST September 10, 2023, 5:00pm EDT $40.00 Race Fee + $4.32 SignUp Fee
Event: 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!
Price: $40.00 Race Fee + $4.32 SignUp Fee
Registration: Registration ends September 10, 2023 at 5:00pm EDT
+ Show− Hide Registration Details
Registration Starting Registration Ending Price
January 1, 2023, 12:00am EST September 10, 2023, 5:00pm EDT $40.00 Race Fee + $4.32 SignUp Fee

If you continue to use this site, you consent to use all cookies. We use cookies to offer you a better browsing experience. Read how we use cookies and how you can control them by visiting our Privacy Policy.

If you continue to use this site, you consent to use all cookies.