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Ultra-Trail Mount Yun by UTMB
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DMY 100K

UTMB World Series
100.0km
October 16
Zhangjiajie,
China
utmb·source

· ·

Other races in China

  • November 6, 2026 · 100 km
  • November 6, 2026 · 50.0 km
  • November 6, 2026 · 20.0 km

Read

  • Hill Training for Trail Runners: Train the Descents
  • Downhill Running Muscle Damage: Why Descents Wreck Quads
  • How to Stop Muscle Cramps While Running

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DMY 100K — Race Profile

Distance
100 km
Max
1652 m
Min
657 m

About DMY 100K

DMY 100K is a 100 km ultra trail of Ultra-Trail Mount Yun by UTMB 2026 in Zhangjiajie, China. The race starts on October 16, 2026.

Course

By gradient, 42% of the distance is uphill, 32% downhill and 26% flat. The longest climb runs 6.2 km at an average 10.4% grade (644 m of vertical). The longest descent runs 2.9 km at 15.1% (445 m of vertical). The steepest climb averages 36.7% over 0.5 km. The steepest descent drops at 43.0% over 0.4 km. Surface: 69% trail.

Poles

Trekking poles are strongly recommended: about 7.4 km 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 on the marked descents until km 48, target pace until km 76, free after that. Short descents not listed: target pace.
  • #1 · 19.3–22.2 km · 445 m D−, -15.1% · 77% of the race ahead → control
  • #2 · 26.5–29.5 km · 383 m D−, -12.8% · 69% of the race ahead → control
  • #3 · 37.1–40.1 km · 422 m D−, -14.3% · 58% of the race ahead → control
  • #4 · 45.5–49.1 km · 442 m D−, -12.2% · 49% of the race ahead → target pace
  • #5 · 54.2–58.0 km · 411 m D−, -10.7% · 39% of the race ahead → target pace
  • 86.2–92.3 km · 713 m D−, -11.7% · 3% of the race ahead → even, first half under control, let go at the end
  • Plus 1 more notable descents not listed: target pace.

This page has the interactive elevation profile, gradient matrix, pacing and nutrition planner and weather climatology for DMY 100K.

Other distances of Ultra-Trail Mount Yun by UTMB 2026·

Other editions of DMY 100K

Official websitemountyun.utmb.world

UMY 100M (161 km)
MMY 50K (48.0 km)
2025