Registration opens Jan 2, 2020 on UltraSignup. No race day registration. When an event is filled, it will be indicated on the UltraSignup Register pop-up menu. There is a waitlist.  

Registration Site

  • Register on UltraSignup online Jan 2, 2020. Deadline August 2 at midnight.
  • See Requirements before registering.
  • Add trail work donation at this link at any time.

Fees in Canadian Dollars

120 mile: $385 by March 31/$440 on April 1.
70 mile: $285 by March 31/$325 on April 1.
50 mile: $175 by March 31/$220 on April 1.
40 mile: $150 by March 31/$185 on April 1.
Relay Team: $675 per team by March 31/$720 on April 1.

Transfer Distance

You can transfer to a different distance in Fat Dog. You cannot transfer an entry to another person.

Refund Policy

If you cannot attend, contact us by March 31 to get a partial refund. No refunds after that date.  If you cannot race but can volunteer on race weekend, you can get a deferral for the following year. If we need to cancel the race (weather issues), and you are still on the active racer list, you get a deferral for the following year.


Included if you register by Mar 31. After that, size is not guaranteed. Note: you will want the shirt.

Make Purchases after Registration

To buy a product or trail work fund after registration, go back to the UltraSignup registration page and click the STORE button.