50K
50K
Sat, Nov 15 · 10:00 PM
$51.26
The Fat Ass Trail Run began in 2003 with 23 participants who fell in love with running the trails of the Batawa area. Over the years, it has grown into one of Ontario's largest trail races, maintaining an inclusive atmosphere welcoming runners and walkers of all ages and abilities.
The event features a variety of trail distances and a unique timed 6-hour race, attracting over 500 runners annually to enjoy the diverse and challenging terrain in late fall.
50K
Sat, Nov 15 · 10:00 PM
$51.26
24.5K
Sat, Nov 15 · 10:00 PM
$51.26
16.5K
Sat, Nov 15 · 10:00 PM
$51.26
10K
Sat, Nov 15 · 10:00 PM
$51.26
7.5K
Sat, Nov 15 · 10:00 PM
$51.26
5K
Sat, Nov 15 · 10:00 PM
$51.26
1K
Sat, Nov 15 · 10:00 PM
Timed Ultras
Sat, Nov 15 · 10:00 PM
$83.94
Prices from the organizer. Please check the official website for up-to-date times and pricing.
Inclusive atmosphere welcoming runners and walkers of all ages and abilities
Multiple race distances including timed 6-hour event
One of Ontario's largest trail races with over 500 participants annually
Opportunity to experience fall running in the Batawa area
The Running Directory combines organizer-provided details, official race links, and ongoing listing research. Always confirm final dates, prices, times, and course details with the race organizer before registering.
Last updated: October 2, 2026
Official registration(opens in a new tab)