Races
Whistler
Whistler singletrack. Coast Mountains. Five thousand eight hundred meters through BC alpine and forest.
100 km+21,983 ft-22,010 ft24 hours1,969 ft to 7,103 fttech 7/106 stationsCoast MountainsUTMB IndexWSER qualifierAugust
Distance100 km
Gain+21,983 ft
Loss-22,010 ft
Altitude1,969 ft to 7,103 ft
Technicality7/10
Air35°F to 75°F
- Start2,146 ft
- High7,083 ft
- Low1,975 ft
- Finish2,119 ft
- Whistler at mile 0.0
- Whistler mile 12 at mile 12, cutoff 4.800000000000001 hours
- Whistler mile 25 at mile 25, cutoff 9.600000000000001 hours
- Whistler mile 37 at mile 37, cutoff 14.399999999999999 hours
- Whistler mile 50 at mile 50, cutoff 19.200000000000003 hours
- Finish Canada at mile 62, cutoff 24 hours
Field, 2026 · 2-year sampleresults
Starters321
Finish rate71%
Median19:49
Sub-24219
Geometrycourse math
Steepest drop1,752 ft-17.8% over 1.9 mi
Night miles14 misunset near 19:00 local
Course records
Men11:27:49Alexander KING
Women12:18:40Tina MUIR
The cruxAlpine sections above Whistler in August rain with rooty descents (near mile 40)
Course DNA
The Course
Whistler runs 100 km through Whistler, Canada. +21,983 ft gain and -22,010 ft loss. Surfaces skew 75% singletrack / 20% alpine / 5% road. Alpine sections above Whistler in August rain with rooty descents. High point near 7,103 ft. Low near 1,969 ft. August temps run 35°F to 75°F. The course rewards patience early and punishes rushed descents after mile 31.
The Work
Train for 21,983 feet of climbing across 100 km. Back-to-back long runs on similar surfaces. Practice power-hiking grades above 15 percent. 24 hours total means limited margin: rehearse fueling every 45 to 60 minutes and downhill eccentric work weekly. Technicality 7/10. Build a block that simulates the crux near mile 40.
Kit
August in Whistler, Canada: plan for 35°F to 75°F. Mandatory shell if rain is in forecast. Headlamp with spare batteries if 24 hours pushes past dark. Poles help on sustained climbs above mile 16. Vest capacity for 2 liters minimum. Shoes matched to 75% singletrack: lugs for mud, rock plate if the course turns technical after mile 31.
Race Day
Hold effort through mile 16. The field often splits on the first big climb after mile 31. Alpine sections above Whistler in August rain with rooty descents near mile 40 is where time is won or lost. Walk the steep pinches. Run the flats and gentle downhills. Crew at major aids: socks, calories, ice if hot. Transitions under 5 minutes when possible. Final third is 21 miles of fatigue management. Finish with reserve for the last descent.
Results
Whistler finish lines.
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Sources (2)
- Field stats (2026): https://utmb.world/utmb-index/races/51810.whistlerbyutmb100k.2026?page=1
- Course record (M): https://utmb.world/utmb-index/races/51810.whistlerbyutmb100k.2025?page=1