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MMY 50K is a 48.0 km trail race of Ultra-Trail Mount Yun by UTMB 2026 in Zhangjiajie, China. The race starts on October 16, 2026.
By gradient, 44% of the distance is uphill, 35% downhill and 22% flat. The longest climb runs 5.3 km at an average 6.1% grade (319 m of vertical). The longest descent runs 5.7 km at 11.1% (638 m of vertical). The steepest climb averages 42.5% over 0.4 km. The steepest descent drops at 37.5% over 0.3 km. Surface: 69% trail and 7% road.
Poles bring little benefit here — only about 8.5 km of pole-friendly terrain.
Quad damage risk is moderate (index 30 of 100), with 46% of the load in the first half: 2 descents deserve a plan and a couple of downhill sessions before race day.
This page has the interactive elevation profile, gradient matrix, pacing and nutrition planner and weather climatology for MMY 50K.
Other distances of Ultra-Trail Mount Yun by UTMB 2026UMY 100M (161 km)·DMY 100K (100 km)
Other editions of MMY 50K2025
Official websitemountyun.utmb.world