Fat Ass Trail Run

NOV
15
2026
Trail running at Batawa Ski Hill on November 15, 2026 with multiple distances from a 1 km kids race to a 50 km course, aid stations and handmade medals.
Sun 15 Nov 2026
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.

Fat Ass Trail Run

The Fat Ass Trail Run takes place at Batawa Ski Hill in Batawa, Ontario on November 15, 2026. The event began in 2003 with 23 participants and has grown over the years; the organizer maintains an inclusive atmosphere for participants of varying ages and paces.

Distances offered include:

  • 50 km five laps of the north loop, approximately 10 km each
  • Bad Ass 6 Hour timed event on a roughly 7.5 km loop
  • 24.5 km combination of south and north loops
  • 16.5 km south loop then north loop
  • 10 km north loop only
  • 7.5 km south loop
  • 5 km south loop
  • Big Bum Kids 1 km kids race

The course mixes rocks, roots, wide trails, single track, wooden bridges, creek crossings, hills and meadows and can present variable conditions including snow or mud. Participants are asked to avoid headphones or keep volume low to allow safe passing.

There are three aid stations stocked with water, Tailwind, and snacks. The event is cupless; participants should bring a flask, speed cup, or hydration bladder. First aid is provided by a professional medical service. Porta potties are located at the start and finish area. Parking is available at Batawa Ski Hill with overflow at the Batawa Community Centre; participants are asked not to block residential driveways.

All participants receive a sustainable handmade medal. Medals are also awarded to first, second and third place male and female in each distance. Fat Ass shirts require pre-order by October 20, 2026. No refunds are offered; transfers between individuals are allowed until October 31, 2026 at the registrants' expense. Visit the organization's website for the most recent information.

Events nearby

A 6.5 km snowshoe race at Goodrich Loomis Conservation Area with snowshoe rentals, merchandise awards, series points, and event souvenirs for preregistered participants.
A timed loop trail run in Goodrich Loomis Conservation Area where runners complete as many roughly 7 km loops as possible in 2, 4, or 6 hours.
Trail race of about 6-8 km at Goodrich Loomis Conservation Area near Brighton, ON; manual timing, cupless, organized by Dirty Soles as part of a Happy Hour series.
Night trail race in Batawa offering 7K, 14K and 21K on rocky marked trails with mandatory headlamps and cupless aid stations.
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