DMY 100K is the 97.0km ultra trail at Ultra-Trail Mount Yun by UTMB 2026 (Zhonghe Square, Mount Yun, Linfen, Shanxi, China). The race starts on October 16, 2026 at 09:00 PM. It starts and finishes in Zhonghe Square, Mount Yun, Linfen, Shanxi. The time limit is 28 h.
Race strategy
Hold a steady pace and save energy for every section.
- Big early climb with 1110m gain. Hold your pace, save your legs for later.
- 448m descent. Go easy, save your quads.
- Final 783m descent. Save your legs to go all out on it.
- Long race. Control your HR and effort. Early mistakes cost the most.
- Control your HR on the first climb, save your quads on the descents until 58.0km, then run your race pace, and start the final descent from 85.8km under control, then go all out near the bottom.
- Start · 0.0km–1.7km · Race-day nerves push your heart rate up: don't follow the crowd, find your own rhythm.
- Settle in · 1.7km–12.6km · Climb of 1113m, high point 1652m. Ease in: hold back more than feels necessary. The race is still ahead. Climb by heart rate or breathing, not pace. Hike the steepest pitches.
- Work · 12.6km–47.6km · Descent of 448m averaging 14%, descent of 498m averaging 8%, descent of 444m averaging 8%. Plus 3 more climbs. This is where the race is built: steady, solid effort. Climb by heart rate or breathing, not pace. This descent is hard on the legs: short steps, stay in control, poles if you have them. Running pays off here: run wherever you can. Hike the steepest pitches.
- Fade · 47.6km–85.8km · Descent of 334m averaging 21%, descent of 409m averaging 11%, climb of 513m. Plus 2 more climbs and 1 descent. Your energy fades, and that's normal: hold a steady effort and stop counting the miles. Climb by heart rate or breathing, not pace. This descent is hard on the legs: short steps, stay in control, poles if you have them. Running pays off here: run wherever you can. Hike the steepest pitches. Your heart rate drifts down on its own: don't chase your early-race numbers, go by feel.
- Home · 85.8km–95.2km · Descent of 783m averaging 8%. No heroics: settle back into your own effort and hold it to the line. Very long descent: first half under control, then even, let go only near the end. Hike the steepest pitches.
Course
The course climbs 4356m+ and descends 4349m−. With 45m/km of climbing, this is a rolling, mostly runnable course. By gradient, 40% of the distance is uphill, 35% downhill and 26% flat. The longest climb runs 12.6km at an average 8.8% grade (1113m of vertical). The longest descent runs 9.4km at an average 8.3% grade (783m of vertical). The steepest climb averages 38.2% over 0.5km. The steepest descent drops at 43.0% over 0.4km. Surface: 75% trail and 9% road. Flat-equivalent effort: 132.8 FlatKM.
Poles
Trekking poles are strongly recommended: about 7.3km of the course is steep enough for them to pay off.
Quad damage
Quad damage risk is moderate (index 47 of 100), with 44% of the load in the first half: 5 descents deserve a plan and a couple of downhill sessions before race day.
- Control your HR on the first climb, save your quads on the descents until 58.0km, then run your race pace, and start the final descent from 85.8km under control, then go all out near the bottom.
- #1 · 19.3–22.4 km · 448 m D−, -14.3% · 72.8 km ahead → control
- #2 · 25.3–31.8 km · 498 m D−, -7.7% · 63.5 km ahead → control
- #3 · 34.5–40.1 km · 444 m D−, -8.0% · 55.1 km ahead → control
- #4 · 47.6–49.1 km · 334 m D−, -21.4% · 46.1 km ahead → control
- #5 · 54.2–58.0 km · 409 m D−, -10.7% · 37.2 km ahead → control
- 85.8–95.2 km · 783 m D−, -8.3% · 0.0 km ahead → even, first half under control, let go at the end
- Plus 1 more notable descent not listed: your pace.
Weather
On race day, start temperatures have historically ranged from 7°C to 16°C, with around 4°C at the highest point; the chance of precipitation is about 25%. Heavy rain of 10.0mm or more falls on about 5% of days around this date.
Results
60 finishers completed the 2026 edition. Men's winner: Hu Zhao (China) in 10:06:20. Women's winner: Anna Li (China) in 12:43:05.
This page has the full results and splits, a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for DMY 100K.
Other distances of Ultra-Trail Mount Yun by UTMB 2026UMY 100M (166km)·MMY 50K (48.0km)
Other editions of DMY 100K2025
Official websitemount-yun.utmb.world