This year the race is on July 31. Next year, we’re back to April 23, 2022.

If you received a deferment credit code from 2020 (i.e., paid for an entry but did not do the virtual event), you can use it at any Hurt the Dirt or Dirty Duel race in 2021 or 2022. You are not automatically registered. Enter the code on the final registration screen. You received an email with the code on 9/8/20. If you cannot find it or forgot to use it and already paid, contact us or RunReg.

Not sure if you registered or what distance you signed up for? Find out here.


2021 Entry Fee (same price as 2019)
Quarter Marathon $47
Half Marathon       $57
Full Marathon        $72 (includes $5 parking pass)
Kids Run (2/3 mi.) free (no registration; just sign a waiver at the start)

Registration deadline: Thursday, July 29, 5:00 pm

Entry fee includes lunch (pig roast, deli veggie sides, fresh fruit, sweets) and a camp-style pint. Your charge will appear as MI Adventure Racing on your credit card statement.

The long-sleeve race shirt is $15 more and optional to keep costs down for those who don’t need it. Scroll down on registration page to purchase.

Military service (past or present): use code military10p (thanks for your service!)
Kids 17 and under $15 off: use code youth15d

(Deadline for online changes: Tuesday, July 27, 8:00 am. Will allow changes after that if critical; contact us)

Distance Changes
We cannot give money back if you choose to move down to a shorter distance but you can make the change right in your RunReg account. Just select Change Category and your preferred distance. If you are moving up in distance, you’ll be asked for the difference in cost. Stuck? Contact RunReg or us.

If you cannot race, you can transfer your entry to another runner and up until registration closes within your RunReg account. The transfer itself is free. You must arrange to receive full or partial payment from that person for your entry. See below for instructions on transferring.

Cancellation Policy

60 days out or more: 100% cash back with $10 per person administrative fee OR 100% credit

30-60 days out: 50% cash back OR 100% credit

15-30 days out: 25% cash back OR 100% credit

6-14 days out: 75% credit (ends Sunday at midnight of race week)

Week of race: no credit except for special circumstances

Race credits are good until the end of the following calendar year.

We can do a 100% cash refund your shirt or other merchandise ordered if you cannot race as long as you contact us before the Monday of race week, preferably earlier.

If you purchased race insurance (e.g., Allianz Registration Protection via RunReg), contact them to inquire about possible reimbursement.

Transfer/Edit Process
Detailed instructions and screenshots.

If you have an account. Find the link in your email confirmation or sign in to your registration (if you registered last year under our old Snap system, contact us). Click on Transfer to the right of My Upcoming Events. Enter in the email address of the person receiving the transfer and click the button again. Once the email has been sent, the person receiving the transfer will need to go through the checkout process to receive the transferred registration, even though there is no charge. Once the transfer is successful the original participant will receive a confirmation email.

If you signed up but did not created an account. Go to the registration page and click “Contact Event” under the event name. Click on the Trying to Edit or Transfer Your Entry green box. On the next page, enter the email address that was used to register. An email will be sent to that address with a link to the page where edits and transfers can be made.

Full refunds are available in the case of a death in the family or military duty.

Race Cancellation
In the case of severe weather or any other cancellation, the deferment credit amount will be at the race’s discretion based on incurred expenses. We will do everything possible to get the event in including rescheduling, but full credits/refunds are not available if it is cancelled (or rescheduled) due to significant costs we must pay in advance of the race (e.g., insurance, permits, vendor deposits, advertising, graphic design, etc.) along with hundreds of hours of planning. In the event of a thunderstorm, we will postpone the race until conditions improve. Extended severe weather may result in cancellation of the event.