A trail runner on a grassy ridge above a sea of clouds

Ultra Trail Whistler by UTMB

It is the first UTMB World Series event staged in Canada, replacing the former Whistler Alpine Meadows.

Prepare for Ultra Trail Whistler by UTMB

A plan built from your answers and your race date.

trail training plan

Ultra Trail Whistler by UTMB is run around Whistler, the mountain resort on the Sea to Sky corridor in British Columbia. Courses use the alpine and forest trails on the surrounding slopes: technical singletrack, rocky sections, long sustained climbs and high ground with views over glacier-carved valleys.

The event is the first UTMB World Series race held in Canada and replaces the former Whistler Alpine Meadows.

The formats

4 formats on the program.

Format	Distance	Vertical gain
100K	62 mi	5,100 m
50K	31 mi	2,942 m
25K	16 mi	1,500 m
10K	7 mi	550 m

Organizer information, checked on September 21, 2026 · whistler.utmb.world

When to start

A build for this distance usually runs 12 to 24 weeks. Counted back from race day, that puts the start somewhere between January 4, 2027 and March 29, 2027.

These ranges are working conventions, not a research finding — no trial has compared plan lengths against each other. What matters more is that the plan was built for the weeks you actually have, rather than shrunk down from a longer one.

How to choose your start date

When to start

January 4, 2027

→ March 29, 2027

Worth reading before you enter

Races and distances Trail distances: what changes off the road Distance stops being the useful number. What decides a trail race is how long you are out, how much you climb, and how much the descents have wrecked your legs by the end. Read Training Eating and drinking: what’s proven, what isn’t This is where confident advice most often runs ahead of the evidence. Some of it is well tested. Some is opinion wearing a number. And one common habit can kill you. Read Races and distances When to start preparing your race Most plans fail before the first session, because the block started too late and everything had to be squeezed. Counting back from the date is the dullest and most useful thing you will do. Read

Questions

What is the date of Ultra Trail Whistler by UTMB in 2027?

Ultra Trail Whistler by UTMB is run on Friday, June 25, 2027 in Whistler. Date published by the organizer, checked on September 21, 2026.

How hard is the Ultra Trail Whistler course?

It is a serious mountain race. The 100K has 5,100 m of climbing over 100 km, and the 50K has 2,942 m. Even the 25K packs 1,500 m into 26 km, so alpine trail experience helps.

Other races

This list keeps growing; it draws no line. A race that is missing is prepared for in exactly the same way.

Crowsnest Pass · CanadaUltra Sinister 7 Ultra Jul 10 Its headline 100 mile course can be run solo or split across a relay team of up to seven runners. Grande Cache · CanadaUltra Canadian Death Race Jul 31 Its flagship course covers 118 km with 5,181 m of climbing, run solo or as a relay. Squamish · CanadaUltra Squamish 50 Aug 14 It offers a 50 mile, a 50 km, a 23 km and the 50/50 double that combines both long distances. Your race is not here? Tell us about your race You can prepare for it all the same. Any race, anywhere, and even a goal without a race.

Your race is on the calendar. Your plan should be too.

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