Fat Ass Trail Run
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About the race
The Fat Ass Trail Run takes place at Batawa Ski Hill in Batawa, Ontario. The event began in 2003 with 23 participants and has grown into a large Ontario trail race while keeping an inclusive atmosphere for runners and walkers of all speeds and ages.
The course combines varied terrain: rocks, roots, wide trails, single track, wooden bridges, creek crossings, hills and meadows. Conditions can vary from snow to mud to sun. Participants are asked not to use headphones or to keep volume low so they can hear others who need to pass.
Distances and events:
- 50 km
- Bad Ass 6 Hour timed event on a loop
- 24.5 km
- 16.5 km
- 10 km
- 7.5 km
- 5 km
- Big Bum Kids 1 km
Logistics and services include three aid stations stocked with water, Tailwind and snacks, on-site first aid, and porta potties at the start and finish area. The event is cupless; participants must bring their own flask, speed cup or bladder for refills. Parking is available at Batawa Ski Hill with overflow at the Batawa Community Centre; participants are asked not to block residential driveways.
Entry policies note there are no refunds; transfers between individuals are allowed until October 31 at the registrants' expense. New for 2026 the kids 1 km schedule was adjusted to reduce trail congestion. Awards include a sustainable handmade medal for all participants and podium medals by sex for each distance. Visit the organization's website for the most recent information.
