Races
DL 100
China, May. 106 km on 75% trail. +28,271 ft of climbing. 26 hours cutoff.
- Start6,703 ft
- High6,905 ft
- Low6,595 ft
- Finish6,624 ft
- China at mile 0.0
- DL 100 mile 13 at mile 13, cutoff 5.2 hours
- DL 100 mile 26 at mile 26, cutoff 10.4 hours
- DL 100 mile 40 at mile 40, cutoff 15.6 hours
- DL 100 mile 53 at mile 53, cutoff 20.8 hours
- Finish China at mile 66, cutoff 26 hours
Geometrycourse math
Weather at the cruxcourse math
At hour 8 of race, feels like 21 C (72 F).Sample of 7 race days, medium confidence.At hour 8 of race, apparent temperature P90 is 21 C / 70 F.
The cruxHumid climbs, ridge exposure, and aid gaps in remote terrain (near mile 43)
Course DNA
The Course
DL 100 runs 106 km through China. Surfaces skew 75% trail / 20% dirt road / 5% paved. Humid climbs, ridge exposure, and aid gaps in remote terrain. High point near 6,906 ft. Low near 6,594 ft. May temps run 50°F to 85°F. The course rewards patience early and punishes rushed descents after mile 33.
The Work
Train for the climbing across 106 km. Back-to-back long runs on trail. Practice power-hiking grades above 15 percent. 26 hours total means limited margin: rehearse fueling every 45 to 60 minutes and downhill eccentric work weekly. Technicality 5/10. Build a block that simulates the crux near mile 43.
Kit
May in China: plan for 50°F to 85°F. Mandatory shell if rain is in forecast. Headlamp with spare batteries if 26 hours pushes past dark. Poles help on sustained climbs above mile 16. Vest capacity for 2 liters minimum. Shoes matched to 75% trail: lugs for mud, rock plate if the course turns technical after mile 33.
Race Day
Hold effort through mile 16. The field often splits on the first big climb after mile 33. Humid climbs, ridge exposure, and aid gaps in remote terrain near mile 43 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 22 miles of fatigue management. Finish with reserve for the last descent.
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