UMY 100M

Race strategy

Hold a steady pace and save energy for every section.

• Big early climb with 1110m gain. Hold your pace, save your legs for later.
• 899m descent. Go easy, save your quads.
• Final 783m 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 climb, save your quads on the descents until 89.8km, then run your race pace, and start the final descent from 154km under control, then go all out near the bottom.
• Start · 0.0km–2.3km · Race-day nerves push your heart rate up: don't follow the crowd, find your own rhythm.
• Settle in · 2.3km–19.3km · Climb of 1113m, high point 1652m. 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. Hike the steepest pitches.
• Work · 19.3km–83.9km · Descent of 447m averaging 15%, descent of 504m averaging 7%, descent of 899m averaging 8%. Plus 3 more climbs and 1 descent. 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.
• Fade · 83.9km–154km · Descent of 421m averaging 7%, climb of 521m. Plus 3 more climbs and 4 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. 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. Your heart rate drifts down on its own: don't chase your early-race numbers, go by feel.
• Home · 154km–163km · Descent of 783m averaging 8%. 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. Hike the steepest pitches.

Course

The course climbs 7416m+ and descends 7409m−. With 45m/km of climbing, this is a rolling, mostly runnable course. By gradient, 37% of the distance is uphill, 36% downhill and 27% flat. The longest climb runs 14.4km at an average 5.4% grade (777m of vertical). The longest descent runs 11.7km at an average 7.7% grade (899m of vertical). The steepest climb averages 38.2% over 0.5km. The steepest descent drops at 40.9% over 0.4km. Surface: 66% trail and 7% road. Flat-equivalent effort: 227.2 FlatKM.

Poles

Trekking poles are strongly recommended: about 8.2km of the course is steep enough for them to pay off.

Quad damage

Quad damage risk is high (index 65 of 100), with 47% of the load in the first half: 5 critical descents, the last of them run on already damaged legs. Downhill-specific preparation and a controlled early pace pay off here.

• Control your HR on the first climb, save your quads on the descents until 89.8km, then run your race pace, and start the final descent from 154km under control, then go all out near the bottom.
• #3 · 19.3–22.3 km · 447 m D−, -14.9% · 141.1 km ahead → control
• #2 · 36.6–44.2 km · 504 m D−, -6.7% · 119.3 km ahead → control
• #1 · 52.8–64.5 km · 899 m D−, -7.7% · 99.0 km ahead → control
• #5 · 66.7–69.4 km · 264 m D−, -9.6% · 94.0 km ahead → control
• #4 · 83.9–89.8 km · 421 m D−, -7.2% · 73.6 km ahead → control
• 154.0–163.4 km · 783 m D−, -8.3% · 0.0 km ahead → even, first half under control, let go at the end
• Plus 4 more notable descents not listed: your pace.

Weather

On race day, start temperatures have historically ranged from 15°C to 25°C, with around 7°C at the highest point; the chance of precipitation is about 25%. Heavy rain of 10.0mm or more falls on about 5% of days around this date.

Results

4 finishers completed the 2026 edition. Men's winner: Xingzhi Bai (China) in 21:10:07.