The Relentless Trail Race Weekend
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About the race
The Relentless Trail Race Weekend is held Oct 3–4, 2026 at The Ark in Denholm, QC, Canada. The event offers multiple distances over two days on marked trail and road courses.
Available distances include:
- 50 Mile Ultra
- 50K Ultra
- 30K Hybrid
- 21K Insanity
- 10K Crazed Course
- 5K Mad Course
- 3K Try a Trail
Courses use a mix of single-track, gravel roads, and sections of the Trans Canada Trail. Routes include technical single-track with roots and rocks, sustained climbs and descents, and clifftop lake viewpoints. The 50 Mile route includes a shuttle section to Kazabazua and a return along the Trans Canada Trail before multiple trail loops. Specific races list elevation totals: the 50K includes an 18 km gravel prologue with 1,523 m total elevation gain; the 30K lists about 819 m gain; the 21K lists about 720 m gain.
The 21K, 30K, 50K and 50 Mile distances are recognized by ITRA and included in the UTMB Index. The event notes there are no cutoff times and recommends a headlamp for the longer distances. Included items and on-site features listed for entries include aid stations, course markers, finisher medals, meals and post-race food, hot beverages, free parking, a campfire hangout, awards and prize giveaways. Visit the organization's website for the most recent information.
