Races
Mount Yun by UTMB - UMY
Mount Yun. Shanxi mountain trails. One hundred sixty kilometers through temple paths and high ridges.
99 mi+32,100 ft-33,219 ft48 hours2,110 ft to 5,390 fttech 5/106 stationsMount YunShanxiWSER qualifierOctober
Distance99 mi
Gain+32,100 ft
Loss-33,219 ft
Altitude2,110 ft to 5,390 ft
Technicality5/10
Air40°F to 70°F
- Start3,232 ft
- High5,253 ft
- Low2,113 ft
- Finish2,113 ft
- Yuncheng at mile 0.0
- Mount Yun by UTMB - UMY mile 20 at mile 20, cutoff 9.600000000000001 hours
- Mount Yun by UTMB - UMY mile 40 at mile 40, cutoff 19.200000000000003 hours
- Mount Yun by UTMB - UMY mile 59 at mile 59, cutoff 28.799999999999997 hours
- Mount Yun by UTMB - UMY mile 79 at mile 79, cutoff 38.400000000000006 hours
- Finish China at mile 99, cutoff 48 hours
Geometrycourse math
Steepest drop1,490 ft-14.3% over 1.9 mi
Night miles51 misunset near 17:00 local
The cruxMount Yun summit ridges in October cold with two nights of sleep debt (near mile 64)
Course DNA
The Course
Mount Yun by UTMB - UMY runs 159.6 km through Yuncheng, China. +32,100 ft gain and -33,219 ft loss. Surfaces skew 70% mountain trail / 25% dirt road / 5% paved. Mount Yun summit ridges in October cold with two nights of sleep debt. High point near 5,390 ft. Low near 2,110 ft. October temps run 40°F to 70°F. The course rewards patience early and punishes rushed descents after mile 50.
The Work
Train for 32,100 feet of climbing across 159.6 km. Back-to-back long runs on trail. Practice power-hiking grades above 15 percent. 48 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 64.
Kit
October in Yuncheng, China: plan for 40°F to 70°F. Mandatory shell if rain is in forecast. Headlamp with spare batteries if 48 hours pushes past dark. Poles help on sustained climbs above mile 25. Vest capacity for 2 liters minimum. Shoes matched to 70% mountain trail: lugs for mud, rock plate if the course turns technical after mile 50.
Race Day
Hold effort through mile 25. The field often splits on the first big climb after mile 50. Mount Yun summit ridges in October cold with two nights of sleep debt near mile 64 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 33 miles of fatigue management. Finish with reserve for the last descent.
Results
Mount Yun by UTMB - UMY finish lines.
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