Races
Nike ACG Ultra-Trail Chongli
Chongli, China. One hundred kilometers of ACG trail. +16,749 ft from the official course table. 24 hours to finish.
- Start6,703 ft
- High6,901 ft
- Low6,594 ft
- Finish6,594 ft
- China at mile 0.0
- Nike ACG Ultra-Trail Chongli mile 12 at mile 12, cutoff 4.800000000000001 hours
- Nike ACG Ultra-Trail Chongli mile 25 at mile 25, cutoff 9.600000000000001 hours
- Nike ACG Ultra-Trail Chongli mile 37 at mile 37, cutoff 14.399999999999999 hours
- Nike ACG Ultra-Trail Chongli mile 50 at mile 50, cutoff 19.200000000000003 hours
- Finish China at mile 62, cutoff 24 hours
Geometrycourse math
The cruxHumid climbs, ridge exposure, and aid gaps in remote terrain (near mile 40)
Course DNA
The Course
Nike ACG Ultra-Trail Chongli runs 100 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. July temps run 50°F to 85°F. The course rewards patience early and punishes rushed descents after mile 31.
The Work
Train for the climbing across 100 km. Back-to-back long runs on trail. 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 5/10. Build a block that simulates the crux near mile 40.
Kit
July in China: plan for 50°F to 85°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% trail: 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. Humid climbs, ridge exposure, and aid gaps in remote terrain 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.
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