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Julian Alps Trail Run by UTMB
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I Feel Slovenia 120K

UTMB World Series
124.0km·7200m+
September 19
Kranjska Gora,
Slovenia
utmb·source

Race Pace Calculator · GPX Analyzer · Trail Finder

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Read

  • Types of Runs and What Each Workout Actually Trains
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Full calendar: Slovenia

I Feel Slovenia 120K · Race profile

Distance
124km
Gain
7200m+
FlatKM
180.1
Max
2164m
Min
421m

About I Feel Slovenia 120K

I Feel Slovenia 120K is the 124km ultra trail at Julian Alps Trail Run by UTMB 2025 (Kranjska Gora, Slovenia). The race starts on September 19, 2025.

Race strategy

Hold a steady pace and save energy for every section.

  • 719m descent. Go easy, save your quads.
  • Steep 33% wall. Control your pace and stay focused.
  • 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.
  • Ease into the early runnable section, save your quads on the descents until 104km, then run your race pace.
  • Start · 0.0km–1.8km · Race-day nerves push your heart rate up: don't follow the crowd, find your own rhythm.
  • Settle in · 1.8km–14.5km · Climb of 665m. 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 · 14.5km–60.9km · Descent of 719m averaging 9%, climb of 770m, descent of 821m averaging 11%. 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 · 60.9km–104km · Climb of 1868m, high point 2166m, descent of 918m averaging 8%, descent of 1321m averaging 10%. Plus 1 more climb. 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 · 104km–123km · 18.5km 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 7200m+. With 58m/km of climbing, this is a true mountain course with sustained climbs and descents. By gradient, 34% of the distance is uphill, 35% downhill and 31% flat. The longest climb runs 15.0km at an average 12.5% grade (1868m of vertical). The longest descent runs 13.6km at an average 9.7% grade (1321m of vertical). The steepest climb averages 47.9% over 0.2km. The steepest descent drops at 47.0% over 0.2km. Surface: 64% trail, 19% road, and 16% smooth. Flat-equivalent effort: 180.1 FlatKM.

Summits

The highest summit on the course is Mali Stol (2187m), 75.9km from the start. Other named summits along the route: Potoški Stol (2017m). The course also passes close to Kamnitnik (1858m).

Poles

Trekking poles are strongly recommended: about 12.8km of the course is steep enough for them to pay off.

Quad damage

Quad damage risk is high (index 57 of 100), with 43% 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.

  • Ease into the early runnable section, save your quads on the descents until 104km, then run your race pace.
  • #1 · 14.5–22.6 km · 719 m D−, -8.8% · 100.3 km ahead → control
  • #2 · 36.9–44.5 km · 821 m D−, -10.8% · 78.4 km ahead → control
  • #3 · 75.9–87.9 km · 918 m D−, -7.7% · 35.0 km ahead → control
  • #4 · 90.8–104.4 km · 1321 m D−, -9.7% · 18.5 km ahead → control

Weather

On race day, start temperatures have historically ranged from 10°C to 20°C, with around 3°C at the highest point; the chance of precipitation is about 39%.

Results

426 finishers completed the 2025 edition. Men's winner: Robert Hajnal (Romania) in 13:57:48. Women's winner: Miria Meinheit (Germany) in 17:16:45.

This page has the full results and splits, a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for I Feel Slovenia 120K.

Other distances of Julian Alps Trail Run by UTMB 2025Lake Bled 80K (80.0km)·Sky Trail 50K (50.0km)·Kranjska Gora 25K (25.0km)·INTERSPORT SPEED 15K (15.0km)·FUNNY 10K (10.0km)

Other editions of I Feel Slovenia 120K2026

Official websitejulianalps.utmb.world