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.

Charity bibs available

15th August 2026

Odyssée 100K

Race Category

ws100KM

Running Stones

Distance

78.9 KM

Elevation Gain

3636 M+

Race details

Charity bibs available

16th August 2026

Tremblante 50K

Race Category

ws50KM

Running Stones

Distance

46 KM

Elevation Gain

2437 M+

Race details

Charity bibs available

15th August 2026

Diable 20K

Race Category

ws20KM

Running Stones

Distance

26.7 KM

Elevation Gain

1561 M+

Race details

Charity bibs available

16th August 2026

Chutes-Croches 20K

Race Category

ws20KM

Running Stones

Distance

14 KM

Elevation Gain

858 M+

Race details

Registrations open

15th August 2026

P'tite 5K

Distance

5.7 KM

Elevation Gain

362 M+

Race details

Opening soon

15th August 2026

Relais 80K

Distance

78.9 KM

Elevation Gain

3636 M+

Race details

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