About Xueruyi 70
Xueruyi 70 is the 72.0km ultra trail at Nike ACG 2025 Ultra-Trail Chongli 2025 (Chongli, China). The race starts on July 11, 2025.
Race strategy
Hold a steady pace and save energy for every section.
- 500m descent. Go easy, save your quads.
- Steep 29% wall. Control your pace and stay focused.
- Final 603m descent. Save your legs to go all out on it.
- Long race. Control your HR and effort. Early mistakes cost the most.
- Control your HR on the first mountain, save your quads on the descents until 34.4km, then run your race pace, and start the final descent from 59.5km under control, then go all out near the bottom.
- Start · 0.0km–1.6km · Race-day nerves push your heart rate up: don't follow the crowd, find your own rhythm.
- Settle in · 1.6km–13.2km · Climb of 546m, high point 2134m, descent of 500m averaging 7%. Ease in: hold back more than feels necessary. The race is still ahead. Climb by heart rate or breathing, not pace. This descent is hard on the legs: short steps, stay in control, poles if you have them.
- Work · 13.2km–37.1km · Descent of 426m averaging 10%. Plus 2 more climbs. This is where the race is built: steady, solid effort. Climb by heart rate or breathing, not pace. This descent is hard on the legs: short steps, stay in control, poles if you have them. Running pays off here: run wherever you can. Hike the steepest pitches.
- Fade · 37.1km–59.5km · Plus 2 more climbs and 2 descents. Your energy fades, and that's normal: hold a steady effort and stop counting the miles. Climb by heart rate or breathing, not pace. Hike the steepest pitches. Your heart rate drifts down on its own: don't chase your early-race numbers, go by feel.
- Home · 59.5km–69.9km · Descent of 603m averaging 6%. No heroics: settle back into your own effort and hold it to the line. Very long descent: first half under control, then even, let go only near the end.
Course
The course climbs 3193m+. With 44m/km of climbing, this is a rolling, mostly runnable course. By gradient, 37% of the distance is uphill, 51% downhill and 12% flat. The longest climb runs 5.9km at an average 9.3% grade (546m of vertical). The longest descent runs 11.8km at an average 6.3% grade (746m of vertical). The steepest climb averages 28.9% over 0.7km. The steepest descent drops at 25.8% over 0.5km. Surface: 31% road, 21% smooth, and 16% trail. Flat-equivalent effort: 89.3 FlatKM.
Poles
Poles bring little benefit here: only about 9.9km of pole-friendly terrain.
Quad damage
Quad damage risk is moderate (index 40 of 100), with 43% of the load in the first half: 2 descents deserve a plan and a couple of downhill sessions before race day.
- Control your HR on the first mountain, save your quads on the descents until 34.4km, then run your race pace, and start the final descent from 59.5km under control, then go all out near the bottom.
- #1 · 5.9–13.2 km · 500 m D−, -6.8% · 56.7 km ahead → control
- #2 · 30.1–34.4 km · 426 m D−, -9.9% · 35.5 km ahead → control
- 37.1–40.2 km · 310 m D−, -10.1% · 29.7 km ahead → your pace
- 43.4–55.2 km · 746 m D−, -6.3% · 14.7 km ahead → your pace
- 59.5–69.9 km · 603 m D−, -5.8% · 0.0 km ahead → even, first half under control, let go at the end
Weather
On race day, start temperatures have historically ranged from 17°C to 25°C, with around 19°C at the highest point; the chance of precipitation is about 49%.
Results
1,172 finishers completed the 2025 edition. Men's winner: Xutao Yu (China) in 6:02:03. Women's winner: Xuemei Huang (China) in 7:06:53.
This page has the full results and splits, a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for Xueruyi 70.
