Whistler, BC, Canada · Saturday, June 26, 2027
Fixed Distance 100K
Ultra Trail Whistler by UTMB - 100K
231 days away
100 km Distance
5,400 m Climbing
10.0 Grit · Elite / extreme
What the course asks
Climbing rate 54 m / km
Mountain. Significant climbing. Steep sections will require power hiking.
Time limit 24 hours
14:24 min/km average. Generous. Walkable throughout for most of the field. More forgiving than 84% of 100K races. Measured against 233 races of the same distance. Cut-off calculator →
Field size ~138 Mid-sized. Company early, well spread out by halfway.
DUV results for the 2025 edition (100km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, September
Daytime high 13°C
Night low 4°C
Rainfall Showers likely
Daylight 16 h 23 m of light
Regional 2001-2020 average for September — NASA POWER, grid elevation 1279 m. Not a forecast.
The Aid Station
Course-specific beta from the community
This is a mountain course. Poles are highly recommended for the sustained climbs.
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
For 100km+ efforts, prioritize real food at aid stations to prevent palate fatigue.
Gear for this race
Chosen for 100 km of trail with 5,400 m of ascent.
- Trail Running Shoes54 m of climb per kilometre — grip and rock protection before cushioning.
- Race NutritionPast 100 km the palate quits before the legs do — carry more than one flavour.
- Hydration VestsPole attachment and chest-strap stability on steep ground.
- Trekking Poles5,400 m of ascent to walk up.
- HeadlampsA 24 h limit puts you out there after dark.
Similar races
Other 100K trail ultras, closest in distance first.