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Mantario Marathon

calendar_today 26 Sep, 2026 – 27 Sep, 2026

directions_run Running

Mantario Marathon

About the Event

The Mantario Trail Run is an iconic and challenging adventure for trail enthusiasts, blending rugged terrain with a spirit of self-reliance. Spanning 64 kilometers over two days, this non-competitive journey invites participants to explore the heart of Manitoba’s wilderness without fees or formal organization.
Starting on Saturday at Caddy Lake South Mantario Trailhead, runners set off in a mass start and cover 32 kilometers to Moosehead Lake, where they camp overnight. The following day begins with individual starts based on previous day's times, concluding another 32-kilometer stretch back to the Big Whiteshell North Mantario Trailhead.
This event is steeped in tradition since its inception in 1980 and embodies a unique ethos—no fees, no aid stations, no swag. Participants are expected to be entirely self-sufficient, carrying all necessary provisions for both days including food, water, shelter, navigation tools, first-aid supplies, and more.
The Mantario Trail winds through boreal forest and Canadian Shield landscapes, featuring numerous water crossings and challenging elevation changes totaling over 1500 meters of ascent and descent. The trail is often wet and slippery, requiring careful route-finding skills to stay on course amid dense foliage and rocky terrain.
Participants are encouraged to run, walk, hike, or fastpack according to their comfort level, as long as they can complete the required distances each day while carrying all necessary gear for both days of travel. Wilderness camping is rugged with no services available; participants must be prepared for an authentic backcountry experience.
The event’s rules emphasize self-reliance and environmental stewardship. Competitors are responsible for their safety and well-being, from navigation to emergency assistance. There's a strong emphasis on Leave No Trace principles—pack out all waste, including personal items that may need disposal along the way.
For those looking to join this extraordinary adventure, it’s essential to be an experienced trail runner or hiker with proven skills in route finding and wilderness survival. Previous experience on trails like Hunt Lake is beneficial but not mandatory; however, training with a loaded backpack over long distances should take precedence over mere mileage alone.
The Mantario Trail Run offers a rare opportunity for runners of all genders to immerse themselves in nature’s splendor while testing their limits against the elements and terrain. For more information and detailed trail maps, visit the event website: Mantario Marathon.

Races Offered

2-Day Stage Event

Sep 26, 2026

straighten

Distance — 64K

terrain

Type — Running

timer

41 days remaining

sell

$0.00

Weather History

These values represent the 3-year monthly averages for September in Whiteshell.

thermostat Temperature
12.9° / 21.2°
wb_sunny Feels like
11.1° / 19.6°
light_mode Avg sunshine hours
9h 25m
water_drop Avg rainfall
2.4 mm
ac_unit Avg snowfall
air Avg wind speed
12.2 km/h (Gentle breeze)
opacity Sweat loss rate
Moderate
terrain Course conditions
Firm and slightly soft
sunny Max UV Index
Moderate (3.5)
humidity_mid Humidity
75.9%
wb_twilight Sunrise
06:59
nightlight Sunset
19:33

Hotels & Places to Stay

Race Results

All-time top performances and historical records for Mantario Marathon.

Place Name Year Time
🥇 Brian Johnston '25 15:13:36

Runner Reviews

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