Great Wall 20K is a 33.0 km trail race of Ultra-Trail Great Wall by UTMB 2025 in Zhangjiakou, China. The race starts on May 16, 2025. The course climbs 1225 m+ and descends 1222 m−, between a low point of 794 m and a high point of 1152 m. By gradient, 35% of the distance is uphill, 37% downhill and 28% flat. The longest climb runs 2.4 km at an average 7.2% grade (171 m of vertical). The longest descent runs 2.2 km at 8.5% (191 m of vertical). Surface: 44% trail, 36% road, and 5% smooth. Flat-equivalent effort: 41.1 FlatKM.
2,183 finishers completed the 2025 edition. Men's winner: Hu Zhao (China) in 2:29:02. Women's winner: Kaili Fan (China) in 3:03:40.
This page has the full results and splits, interactive elevation profile, gradient matrix, pacing and nutrition planner and weather climatology for Great Wall 20K.
Other distances of Ultra-Trail Great Wall by UTMB 2025Great Wall 100K (105 km)·Great Wall 50K (54.0 km)
Other editions of Great Wall 20K2026
Official websitedajingmen.utmb.world
