Yunding 30 is a 28.0 km trail race of Nike ACG Chongli 2026 in Chongli, China. The race starts on July 12, 2026.
The course climbs 1283 m+. With 46 m/km of climbing, this is a true mountain course with sustained climbs and descents. By gradient, 32% of the distance is uphill, 51% downhill and 16% flat. The longest climb runs 2.8 km at an average 8.9% grade (249 m of vertical). The longest descent runs 4.2 km at 12.0% (504 m of vertical). The steepest climb averages 34.0% over 0.4 km. The steepest descent drops at 32.9% over 0.4 km. Surface: 52% trail and 25% road. Flat-equivalent effort: 39.1 FlatKM.
Poles bring little benefit here — only about 2.0 km of pole-friendly terrain.
Quad damage risk is moderate (index 25 of 100), with 49% of the load in the first half: 2 descents deserve a plan and a couple of downhill sessions before race day.
Historically on race day, start temperatures range from 16°C to 24°C, around 21°C at the highest point; the chance of precipitation is about 49%.
This page has the interactive elevation profile, gradient matrix, pacing and nutrition planner and weather climatology for Yunding 30.
Other distances of Nike ACG Chongli 2026Chongli 168 (171 km)·Chongli 100 (103 km)·Snow Ruyi 70 (72.8 km)·Wanlong 50 (52.1 km)·Thaiwoo 50 (Team) (51.2 km)
Other editions of Yunding 302025
Official websitechongli168ultratrail.com/en
