XRun - Tajemnicze Kopce in 2025, a running event organized in Kornatka (Poland) on 9 March. During the 3 races were held event. Marathon (⨦ 32 km / + 1 250 m) in class RMT2 with average terrain slope 4% (G4). Classic (⨦ 22 km / + 800 m) in class RMT2 with average terrain slope 4% (G4). Mini (⨦ 14.5 km / + 550 m) in class RMT1 with average terrain slope 4% (G4).