Mont-Blanc 90K

Race strategy

Hold a steady pace and save energy for every section.

• Big early climb with 1450m gain. Hold your pace, save your legs for later.
• 697m descent. Go easy, save your quads.
• Final 1347m 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 60.8km, then run your race pace, and start the final descent from 74.2km under control, then go all out near the bottom.
• Start · 0.0km–1.7km · Race-day nerves push your heart rate up: don't follow the crowd, find your own rhythm.
• Settle in · 1.7km–9.6km · Climb of 1447m, high point 2473m. Ease in: hold back more than feels necessary. The race is still ahead. Climb by heart rate or breathing, not pace.
• Work · 9.6km–43.4km · Descent of 697m averaging 13%, descent of 841m averaging 13%, descent of 895m averaging 22%. 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. Hike the steepest pitches.
• Fade · 43.4km–74.2km · Climb of 1188m, descent of 1133m averaging 11%, climb of 1111m. 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 · 74.2km–85.7km · Descent of 1347m averaging 12%. 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 6200m+. With 70m/km of climbing, the course is exceptionally steep, with long hiking-grade sections. By gradient, 49% of the distance is uphill, 43% downhill and 8% flat. The longest climb runs 9.6km at an average 15.0% grade (1447m of vertical). The longest descent runs 11.5km at an average 11.7% grade (1347m of vertical). The steepest climb averages 51.4% over 0.2km. The steepest descent drops at 46.9% over 0.3km. Surface: 87% trail and 6% road. Flat-equivalent effort: 142.3 FlatKM.