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Ultra Trail Whistler by UTMB Whistler, British Columbia, Canada

Name: Ultra Trail Whistler by UTMB
Start: 2027-06-26
End: 2027-06-27

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Ultra Trail Whistler by UTMB

Course maps

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HelloDrifter does not warrant the accuracy of this course data; it is provided for informational use only. Verify the course against the event organizer's published materials before relying on it for navigation or safety-critical activities.

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10K
25K
50K
100K

Foot race | 26 Jun 2027

63.5 mi

Distance

Elevation gain

7,083 ft

Elevation high

3,586 ft

Elevation avg

Mixed

Elevation loss

1,949 ft

Elevation low

30%

Climb factor

What is climb factor?

The climb factor for a course is the percentage of your energy used in hill-climbing compared to the energy expended running the flats.

This course has a climb factor of 30% over 63.5 mi, which means that the energy expenditure for the run is equivalent to running a flat 82.3 mi.

Climb factor is provided courtesy of Ben Crowell, who both authored climb factor's scientific paper and wrote the open source software for it. You can read more about it here .

Course last updated 9 Oct 2026

All values approximate

Distance & elevation data

The distance or elevation data not precisely what you expect for this route?

Data from a GPS device can be rough, especially in areas where the terrain (trees, canyons) interfere with GPS signals. And routes drawn on our maps are reliant on people marking trails from satellite images -- the details of which can be hidden by trees.

Elevation can be tricky too. Elevation data is stored on spaced topographical lines, and determining the elevation of a point requires computers to estimate based on how close the point is to the topographical line.

We mitigate this by calculating distance in 3-D (think Pythagorean theorem) and using mathematical techiniques to smooth the elevation data. We come close, but no one can be perfect with imperfect data, even in 2026.

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Ultra Trail Whistler by UTMB - 100K course map

Stats summary

Race distance	Distance	Ele gain	Ele loss	Ele avg	Paved	Gravel	Dirt	Narrow
10K	7.9 mi	1,857 ft	1,860 ft	2,566 ft	11%	46%	43%	39%
25K	16.4 mi	4,915 ft	4,915 ft	3,858 ft	5%	54%	41%	44%
50K	31.8 mi	10,682 ft	10,722 ft	4,606 ft	14%	66%	19%	38%
100K	63.5 mi	16,995 ft	17,034 ft	3,586 ft	22%	65%	13%	59%