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Nike ACG Chongli
170.7km170.7103km10372.8km72.852.1km52.151.2km51.228km28

Wanlong 50

52.1km·2448m+
July 11
Chongli,
China
source

Race Pace Calculator · GPX Analyzer · Trail Finder

Wanlong 50 · Race profile

Distance
52.1km
Gain
2448m+
FlatKM
76.3
Max
2089m
Min
1256m

Other races: China

  • Ultra-Trail Shudao by UTMB · MSD 50KNovember 6, 2026 · 50.0km
  • Ultra-Trail Shudao by UTMB · ESD 20KNovember 6, 2026 · 20.0km
  • Ultra-Trail Shudao by UTMB · DSD 100KNovember 6, 2026 · 100km

Read

  • Types of Runs and What Each Workout Actually Trains
  • Hill Training for Trail Runners: Train the Descents
  • Downhill Running Muscle Damage: Why Descents Wreck Quads

50K trail race calendar

About Wanlong 50

Wanlong 50 is the 52.1km ultra trail at Nike ACG Chongli 2026 (Chongli, China). The race starts on July 11, 2026.

Race strategy

Hold a steady pace and save energy for every section.

  • 340m descent. Go easy, save your quads.
  • Steep 32% wall. Control your pace and stay focused.
  • Control your HR on the first mountain, save your quads on the descents until 12.7km, then run your race pace, and go all out on the final descent from 47.1km.
  • Start · 0.0km–1.5km · Race-day nerves push your heart rate up: don't follow the crowd, find your own rhythm.
  • Settle in · 1.5km–12.7km · Descent of 340m averaging 19%, descent of 280m averaging 10%. Plus 2 more climbs. 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. Hike the steepest pitches.
  • Work · 12.7km–29.8km · Plus 1 more climb and 1 descent. This is where the race is built: steady, solid effort. Climb by heart rate or breathing, not pace. Running pays off here: run wherever you can.
  • Fade · 29.8km–47.1km · Climb of 451m, high point 2097m. Plus 1 more climb 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 · 47.1km–51.9km · Descent of 351m averaging 7%. No heroics: settle back into your own effort and hold it to the line.

Course

The course climbs 2448m+. With 47m/km of climbing, this is a true mountain course with sustained climbs and descents. By gradient, 37% of the distance is uphill, 43% downhill and 20% flat. The longest climb runs 5.5km at an average 7.8% grade (426m of vertical). The longest descent runs 10.5km at an average 8.2% grade (862m of vertical). The steepest climb averages 32.0% over 0.9km. The steepest descent drops at 33.1% over 0.4km. Surface: 41% road, 23% trail, and 8% smooth. Flat-equivalent effort: 76.3 FlatKM.

Poles

Poles bring little benefit here: only about 7.5km of pole-friendly terrain.

Quad damage

Quad damage risk is moderate (index 34 of 100), with 42% 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 12.7km, then run your race pace, and go all out on the final descent from 47.1km.
  • #1 · 5.5–7.3 km · 340 m D−, -18.9% · 44.6 km ahead → control
  • #2 · 9.8–12.7 km · 280 m D−, -9.7% · 39.2 km ahead → control
  • 21.4–24.6 km · 315 m D−, -9.8% · 27.3 km ahead → your pace
  • 29.8–33.1 km · 319 m D−, -9.8% · 18.9 km ahead → your pace
  • 47.1–51.9 km · 351 m D−, -7.3% · 0.0 km ahead → free
  • Plus 1 more notable descent not listed: your pace.

Weather

On race day, start temperatures have historically ranged from 17°C to 24°C, with around 21°C at the highest point; the chance of precipitation is about 49%. Heavy rain of 10.0mm or more falls on about 9% of days around this date.

This page has a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for Wanlong 50.

Other distances of Nike ACG Chongli 2026Chongli 168 (171km)·Chongli 100 (103km)·Snow Ruyi 70 (72.8km)·Thaiwoo 50 (Team) (51.2km)·Yunding 30 (28.0km)

Official websitechongli168ultratrail.com/en