About THT 55K
THT 55K is the 55.0km ultra trail at TengChong Gaoligong Ultra 2026 (Yanhu Park, Tengchong, China). The race starts on March 21, 2026 at 07:00 AM. It starts in Yanhu Park, Tengchong and finishes in Heshun Ancient Town. The time limit is 12 h 30 min.
Race strategy
Hold a steady pace and save energy for every section.
- Start easy and control your HR up to 18.5km.
- 474m descent. Go easy, save your quads.
- Hold your race pace up to 28.9km, but stay in control.
- Control your HR on the first climb, save your quads on the descents until 25.5km, then run your race pace, and go all out on the final descent from 48.3km.
- Start · 0.0km–2.2km · Race-day nerves push your heart rate up: don't follow the crowd, find your own rhythm.
- Settle in · 2.2km–18.5km · Climb of 789m, 7.3km of runnable trail, high point 2313m. Ease in: hold back more than feels necessary. The race is still ahead. Climb by heart rate or breathing, not pace. Running pays off here: run wherever you can.
- Work · 18.5km–28.9km · Descent of 474m averaging 7%. Plus 1 more climb. 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.
- Fade · 28.9km–48.3km · Plus 1 more climb and 1 descent. Your energy fades, and that's normal: hold a steady effort and stop counting the miles. Climb by heart rate or breathing, not pace. Running pays off here: run wherever you can. Your heart rate drifts down on its own: don't chase your early-race numbers, go by feel.
- Home · 48.3km–52.7km · Descent of 324m averaging 7%. No heroics: settle back into your own effort and hold it to the line. Long descent: keep it even and let go only near the end.
Course
The course climbs 2126m+. With 39m/km of climbing, this is a rolling, mostly runnable course. By gradient, 32% of the distance is uphill, 41% downhill and 27% flat. The longest climb runs 11.2km at an average 7.1% grade (789m of vertical). The longest descent runs 7.0km at an average 6.7% grade (474m of vertical). The steepest climb averages 32.7% over 0.2km. The steepest descent drops at 26.9% over 0.3km. Flat-equivalent effort: 71.8 FlatKM.
Poles
Poles bring little benefit here: only about 6.7km of pole-friendly terrain.
Quad damage
Quad damage risk is moderate (index 28 of 100), with 45% of the load in the first half: 1 descent deserves a plan and a couple of downhill sessions before race day.
- Control your HR on the first climb, save your quads on the descents until 25.5km, then run your race pace, and go all out on the final descent from 48.3km.
- #1 · 18.5–25.5 km · 474 m D−, -6.7% · 27.2 km ahead → control
- 39.3–44.4 km · 461 m D−, -9.0% · 8.3 km ahead → your pace
- 48.3–52.7 km · 324 m D−, -7.2% · 0.0 km ahead → even, let go at the end
Weather
On race day, start temperatures have historically ranged from 8°C to 13°C, with around 12°C at the highest point; the chance of precipitation is about 21%. Heavy rain of 10.0mm or more falls on about 2% of days around this date.
This page has a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for THT 55K.
Other distances of TengChong Gaoligong Ultra 2026MGU 168K (168km)·RCE 120K (120km)·TCZ 35K (35.0km)·GEP 15K (15.0km)
Other editions of THT 55K2027
Official websitemgu.saihuitong.com