Fat Ass Trail Run

NOV
15
2026
The Fat Ass Trail Run, started in 2003, is a welcoming trail event for all. It offers a wide range of distances, a varied course, and a community atmosphere. The cup-less event emphasizes safety and the joy of running on natural trails.
Sun 15 Nov 2026
6 hour 50 kilometers 25 kilometers 17 kilometers 10 kilometers 8 kilometers 5 kilometers

Always double-check with the organizer's website! This page may contain affiliate links.

Event Information

The Fat Ass Trail Run began in 2003. The event offers multiple distances with staggered start times throughout the day:

  • 50 km
  • Bad Ass 6 Hour (a 6-hour timed event on a 7.5 km loop)
  • 24.5 km
  • 16.5 km
  • 10 km
  • 7.5 km
  • 5 km
  • Big Bum Kids' 1 km

The course takes place on the trails of Batawa. The route is varied, featuring rocks, roots, wide and narrow trails, wooden bridges, creek crossings, hills, and meadows.

Rules and Equipment

Participants are asked not to use headphones, or to keep the volume low to hear others. Poles are permitted. The event is cup-less: runners must bring their own container for refilling at aid stations.

For the 50 km, there is a hard cutoff time of 5:00 PM. Runners are required to have a headlamp after 3:00 PM. Those not on their final loop by 3:45 PM will not be allowed to finish it. Pacers are allowed on the final loop only.

On-Course Services

Three aid stations are located on the course, stocked with water, electrolyte drink, and snacks. Portable toilets are available at the start/finish area. First aid services are provided on-site.

There is main parking at Batawa Ski Hill and overflow parking at the Batawa Community Centre.

Awards and Swag

No participant medals are awarded. Medals are given to the top three male and female finishers in each distance. All children in the Big Bum Kids' Run receive a participant ribbon.

Event t-shirts are available for pre-order. Bad Ass 6 Hour participants receive exclusive swag included with their entry. Various Dirty Soles merchandise will be available for purchase. Visit the organization's website for the most recent information.

6 hr
Bad Ass 6 Hour
50 km
50k
25 km
24k
17 km
16.5k
10 km
10k
8 km
7.5k
5 km
Big Bum Kids' Run