5.75K
Individual Full Loop
Sat, Jun 21 · 6:00 AM
$125
- Past race
- Ultra
Mad Trapper Backyard Ultra 2025
- Denholm, Quebec
Hosted byMad Trapper Racing
About Mad Trapper Backyard Ultra 2025
The Mad Trapper Backyard Ultra is an endurance trail race held at The Ark, approximately 40 minutes north of Ottawa, in Denholm, Quebec. Participants run a looped trail course every hour, on the hour, until only one runner remains. The race offers several formats including the classic individual "Last Person Standing" on a full loop of roughly 5.5 to 6.0 km, the slightly shorter Kristi Loop (~5.2 km), and a unique 2-person team format.
Known for its technical and hilly terrain with alternating loop directions each hour, this race tests mental grit and physical endurance. The event includes a post-race celebration, with a buffet provided and space for crews and camping nearby.
Distances and events
5.2K
Individual Kristi Loop
Sat, Jun 21 · 6:00 AM
$125
5.2K
2 Person Team
Time BasedSat, Jun 21 · 6:00 AM
$150
Prices from the organizer. Please check the official website for up-to-date times and pricing.
Highlights
Held at The Ark, 285 ch. de Farrellton, Denholm, QC, about 40 minutes north of Ottawa
Choose between Full Loop (~5.5-6.0 km) and Kristi Loop (~5.2 km)
Unique 2-Person Team Backyard Ultra format
Technical, hilly trail terrain with alternating loop directions
Post-race buffet celebration
Space for crews, lawn chairs, coolers, and tent camping nearby
Participant cap of 60 racers with early notifications to past participants
Course
- Location
- Denholm, Quebec
Course details
* Classic Individual Last Person Standing event on Full Loop (~5.5 to 6.0 km per loop) * Individual Kristi Loop Last Person Standing option (~5.2 km per loop) * 2-Person Team event uses Kristi Loop (~5.2 km per loop) * All races start at 8:00 AM on June 21, 2025 * Trail surface with technical and hilly terrain * Loops alternate direction each hour * Personal aid required; water and food provided * Strollers not allowed
About the organizer
Organizer
Mad Trapper Racing
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Listing freshness
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
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