Slovenia · Carinthia (Koroška)
K24 Ultra-Trail
Distance
50 km
Date
August 8, 2026
Entry fee
80 EUR
€ / km
€1.60
Slovenia’s cult ultra: steep climbs, rocky ridges, and the iconic 24-hour mountain challenge vibe.
Elevation and Terrain
Total Meters
2550m
D+/KM
51m/km
For context, the Tor des Géants 330 loop has 73 D+/km.
Avg Uphill Gradient
14.3%
Avg Downhill Gradient
-12.6%
Uphill gradient distribution
Route Profile
Analysed 2026-05-02Terrain breakdown
Terrain
Climbs
Top climbs
3.6 km · 645 m gain
starts km 29 · avg 17.9% · max 48.0%
3.9 km · 591 m gain
starts km 0 · avg 15.0% · max 52.2%
5.8 km · 504 m gain
starts km 6 · avg 8.8% · max 33.3%
Top descents
9.2 km · 1111 m drop
starts km 33 · avg -12.1% · max -70.1%
4.7 km · 409 m drop
starts km 14 · avg -8.7% · max -43.1%
2.9 km · 361 m drop
starts km 44 · avg -12.0% · max -48.2%
Race files
Logistics
Nearest airport
Ljubljana (LJU) / Klagenfurt (KLU) / Trieste (TRS)
Notes
Start: ~1.0–2.5 hrs to Črna na Koroškem area / Public transport: limited; buses to Slovenj Gradec/Ravne + taxi last-mile; car recommended / Accommodation: limited in Črna; book early; alternative base in Slovenj Gradec
