MIUT 115

Race strategy

Hold a steady pace and save energy for every section.

• Big early climb with 1.8km gain. Hold your pace, save your legs for later.
• 1681m descent. Go easy, save your quads.
• The finish is runnable. Save your legs to run it all the way.
• 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 85.1km, then run your race pace.
• Start · 0.0km–1.3km · Race-day nerves push your heart rate up: don't follow the crowd, find your own rhythm.
• Settle in · 1.3km–26.3km · Descent of 354m averaging 13%, climb of 1771m. Plus 1 more climb. 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 · 26.3km–64.1km · Descent of 1681m averaging 11%, climb of 682m, descent of 727m averaging 9%. 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 · 64.1km–106km · Climb of 1618m, descent of 1528m averaging 12%, high point 1713m, climb of 1083m. Plus 1 more 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. This descent is hard on the legs: short steps, stay in control, poles if you have them. Hike the steepest pitches. Your heart rate drifts down on its own: don't chase your early-race numbers, go by feel.
• Home · 106km–118km · 11.4km of runnable trail. No heroics: settle back into your own effort and hold it to the line. Running pays off here: run wherever you can.

Course

The course climbs 6640m+ and descends 6640m−. With 56m/km of climbing, this is a true mountain course with sustained climbs and descents. By gradient, 35% of the distance is uphill, 36% downhill and 29% flat. The longest climb runs 21.4km at an average 8.3% grade (1771m of vertical). The longest descent runs 15.2km at an average 11.1% grade (1681m of vertical). The steepest climb averages 46.7% over 0.3km. The steepest descent drops at 53.7% over 0.3km. Surface: 62% trail, 23% road, and 9% smooth. Flat-equivalent effort: 172.7 FlatKM.

Poles

Trekking poles are strongly recommended: about 18.4km of the course is steep enough for them to pay off.

Quad damage

Quad damage risk is high (index 64 of 100), with 44% of the load in the first half: 4 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 mountain, save your quads on the descents until 85.1km, then run your race pace.
• #3 · 2.2–4.9 km · 354 m D−, -13.3% · 112.8 km ahead → control
• #1 · 26.3–41.4 km · 1681 m D−, -11.1% · 76.2 km ahead → control
• #4 · 56.4–64.1 km · 727 m D−, -9.5% · 53.6 km ahead → control
• #2 · 72.5–85.1 km · 1528 m D−, -12.2% · 32.6 km ahead → control
• 93.8–106.3 km · 1095 m D−, -8.8% · 11.4 km ahead → your pace

Results

434 finishers completed the 2025 edition. Men's winner: Paul Cornut-Chauvinc (France) in 12:54:52. Women's winner: Katie Schide (United States) in 14:20:56.