The ultra where forest, devil, and spirits come together

About the race

Boréalys Mont-Tremblant by UTMB invites you to tread the relentless trails of Québec’s folklore and face the trembling mountain.

More than just an ultra-trail, Boréalys Mont-Tremblant by UTMB is a true journey between darkness and light, from the depths of the forest to the redemptive return to Tremblant's village steeple.

Runners seal a pact with the spirits for the right to tread the trembling mountain and thus reach the Devil’s River, said to by a source of precious stones.

Boréalys Mont-Tremblant by UTMB invites you into a universe where culture and nature unite to offer an extraordinary sporting challenge.

Opening soon

15th August 2026

Odyssée 100K

Race Category

ws100KM

Running Stones

Distance

78.9 KM

Elevation Gain

3636 M+

Race details

Opening soon

16th August 2026

Tremblante 50K

Race Category

ws50KM

Running Stones

Distance

46 KM

Elevation Gain

2437 M+

Race details

Opening soon

15th August 2026

Diable 20K

Race Category

ws20KM

Running Stones

Distance

26.7 KM

Elevation Gain

1561 M+

Race details

Opening soon

16th August 2026

Chutes-Croches 20K

Race Category

ws20KM

Running Stones

Distance

14 KM

Elevation Gain

858 M+

Race details

Opening soon

15th August 2026

Relais 80K

Distance

78.9 KM

Elevation Gain

3636 M+

Race details

Opening soon

15th August 2026

P'tite 5K

Distance

5.7 KM

Elevation Gain

362 M+

Race details

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