Mantario Marathon

McDougalls Landing, Canada • 27-28 Sep 2025

Mantario Marathon is a 2-day, self-supported stage run on the Mantario Trail in Whiteshell, Manitoba. 64 km in two 32 km days, with an overnight camp at Moosehead Lake. It follows a Fat Ass ethos: no fee, no aid, total self-reliance.

Participants must carry gear and navigate terrain through boreal forest and Canadian Shield, with water crossings and elevation. Day 1 goes from Caddy Lake South Trailhead to Moosehead Lake; Day 2 finishes at Big Whiteshell North Trailhead with staggered starts based on Day 1 results. Route maps and GPX are essential.

Open to run, walk, hike, or fastpack; inclusive of all genders. Visit the organization's website for the most recent information.

Race information

64 km
1500 m+
32 km
32 Km Day 1
32 km
32 Km Day 2
Visit the organization's website for the most recent information.
Trail runs nearby

Test your limits on technical trails around West Hawk Lake in Manitoba's scenic Whiteshell at Suffer on Centennial. Distances from 8 km to a point to point 100 km with relay options make this a must for adventurous trail runners.