Blue Course

Race strategy

Hold a steady pace and save energy for every section.

• Start easy and control your HR up to the Luk pass.
• Hold your race pace up to 26.3km, but stay in control.
• Final 962m descent. Save your legs to go all out on it.
• Control your HR on the first mountain, then run your race pace, and start the final descent from 26.3km under control, then go all out near the bottom.
• Start · 0.0km–1.4km · Race-day nerves push your heart rate up: don't follow the crowd, find your own rhythm.
• Settle in · 1.4km–18.4km · Climb of 716m, climb of 549m. Plus 1 more climb and 2 descents. Ease in: hold back more than feels necessary. The race is still ahead. Climb by heart rate or breathing, not pace.
• Work · 18.4km–26.3km · 6.4km of runnable trail, high point 1026m. Plus 1 more descent. This is where the race is built: steady, solid effort. Running pays off here: run wherever you can.
• Home · 26.3km–33.3km · Descent of 962m averaging 14%. 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

The course climbs 2040m+ and descends 2040m−. With 62m/km of climbing, this is a true mountain course with sustained climbs and descents. By gradient, 38% of the distance is uphill, 45% downhill and 17% flat. The longest climb runs 5.0km at an average 11.0% grade (549m of vertical). The longest descent runs 7.0km at an average 13.8% grade (962m of vertical). The steepest climb averages 27.1% over 0.2km. The steepest descent drops at 38.9% over 0.2km. Surface: 84% trail, 8% smooth, and 7% road. Flat-equivalent effort: 55.9 FlatKM.

Summits

The highest summit on the course is Vranovo Brdo (743m), 4.8km from the start.

Poles

Trekking poles are worth taking: about 6.1km of the course favours them.

Quad damage

Quad damage risk is moderate (index 28 of 100), with 30% of the load in the first half: 0 descents deserve a plan and a couple of downhill sessions before race day.

• Control your HR on the first mountain, then run your race pace, and start the final descent from 26.3km under control, then go all out near the bottom.
• 12.1–17.1 km · 287 m D−, -5.7% · 16.2 km ahead → your pace
• 26.3–33.2 km · 962 m D−, -13.8% · 0.0 km ahead → even, first half under control, let go at the end

Results

115 finishers completed the 2025 edition. Men's winner: Josip Raičević (Montenegro) in 4:24:28. Women's winner: Sabina Bigger (Switzerland) in 4:13:29.