Great Wall 20K is the 31.0km trail race at Ultra-Trail Great Wall by UTMB 2026 (Dajingmen, China). The race starts on September 13, 2026 at 07:30 AM. It starts and finishes in Dajingmen. The time limit is 9 h.
Run the climb at race pace, build your speed on the downhill, and go all out at the finish.
The course climbs 1455m+. With 47m/km of climbing, this is a true mountain course with sustained climbs and descents. By gradient, 48% of the distance is uphill, 36% downhill and 16% flat. The longest climb runs 5.8km at an average 4.7% grade (273m of vertical). The longest descent runs 3.8km at an average 6.3% grade (236m of vertical). The steepest climb averages 17.8% over 0.5km. The steepest descent drops at 21.2% over 0.5km. Surface: 44% trail, 35% road, and 5% smooth. Flat-equivalent effort: 42.5 FlatKM.
Poles bring little benefit here: only about 1.8km of pole-friendly terrain.
Quad damage risk is low (index 19 of 100): a few descents worth noting, none of them decisive.
On race day, start temperatures have historically ranged from 12°C to 19°C, with around 21°C at the highest point; the chance of precipitation is about 30%. Heavy rain of 10.0mm or more falls on about 4% of days around this date.
1,657 finishers completed the 2026 edition. Men's winner: Shiqing Fan (China) in 2:30:20. Women's winner: Qinghua Le (China) in 3:11:48.
This page has the full results and splits, a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for Great Wall 20K.
Other distances of Ultra-Trail Great Wall by UTMB 2026Great Wall 100K (100km)·Great Wall 50K (52.0km)
Other editions of Great Wall 20K2025
Official websitedajingmen.utmb.world
