Registration is now open!

Here is how it works:

  • Only 125 runners will be admitted to the race.
  • Submit your pre-registration form.
  • 50 runners will be chosen based on their previous accomplishments. They will be announced as soon as they are chosen.
  • 75 others will be picked from the remaining registrants. They will have 48 hours to confirm their registration or their spot will be offered to another runner.
  • Pre-registration fee is CAD$20 and the official registration will be CAD$150 (non refundable).


Runners are entirely responsible for their food: snacks, energy drinks, meals, etc. Water and some snacks will be provided on site (details to come).

Runners will have space to install a tent (max 10×20) and their belongings.

A toilet will be available.

They can be accompanied by a team that can offer them comfort and support.

When they abandon, participants will receive a DNF (Did Not Finish) sweater and a beer.

The winner will be able to register automatically and at no charge at Big’s Backyard Ultra in Tennessee.

Suggested equipment

  • Tent for shelter
  • Chair
  • Cooler
  • Blanket
  • Food and hydration drinks
  • Headlamp with spare battery

Pre-registration for the 2021 Big Wolf’s Backyard Ultra