RT 100K

Race strategy

Hold a steady pace and save energy for every section.

• Big early climb with 1.4km gain. Hold your pace, save your legs for later.
• 680m descent. Go easy, save your quads.
• Final 1268m 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 way down from it until 15.8km, then run your race pace, and start the final descent from 43.7km under control, then go all out near the bottom.
• Start · 0.0km–1.6km · Race-day nerves push your heart rate up: don't follow the crowd, find your own rhythm.
• Settle in · 1.6km–8.0km · Climb of 1421m, high point 1813m. Ease in: hold back more than feels necessary. The race is still ahead. Climb by heart rate or breathing, not pace. Hike the steepest pitches.
• Work · 8.0km–24.6km · Descent of 680m averaging 9%, climb of 612m. 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 · 24.6km–43.7km · 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 · 43.7km–55.7km · Descent of 1268m averaging 11%. 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.

Course

By gradient, 30% of the distance is uphill, 38% downhill and 32% flat. The longest climb runs 8.8km at an average 7.0% grade (612m of vertical). The longest descent runs 12.0km at an average 10.6% grade (1268m of vertical). The steepest climb averages 40.0% over 0.3km. The steepest descent drops at 32.3% over 0.3km. Surface: 73% trail and 22% technical. Flat-equivalent effort: 91.9 FlatKM.

Poles

Trekking poles are worth taking: about 8.7km of the course favours them.

Quad damage

Quad damage risk is moderate (index 35 of 100), with 29% 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 mountain, save your quads on the way down from it until 15.8km, then run your race pace, and start the final descent from 43.7km under control, then go all out near the bottom.
• #1 · 8.0–15.8 km · 680 m D−, -8.7% · 39.9 km ahead → control
• 37.0–41.2 km · 304 m D−, -7.3% · 14.5 km ahead → your pace
• 43.7–55.7 km · 1268 m D−, -10.6% · 0.0 km ahead → even, first half under control, let go at the end

Weather

On race day, start temperatures have historically ranged from 22°C to 28°C, with around 18°C at the highest point; the chance of precipitation is about 10%.

Results

751 finishers completed the 2025 edition. Men's winner: Bart Przedwojewski (Poland) in 6:25:26. Women's winner: Giuditta Turini (Italy) in 7:44:32.