Kammala jumla mai zuwa: An haife shi a Belišće, Osijek-Baranja, Ljubek ya yi gasa a wasannin Olympics na bazara guda hudu inda ya lashe lambobin yabo hudu. Wannan ya haɗa da zinare biyu (C-1 1000 m: 1976, C-2 500 m: 1984 tare da Mirko Nišović), azurfa ɗaya (C-2 1000 m: 1984 tare da Mirko Nišović), da tagulla ɗaya (C-1 500 m: 1976). Mai koyar da shi shi ne Laszlo Hingl. Ya kuma lashe lambobin yabo goma a Gasar Cin Kofin Duniya ta ICF Canoe Sprint tare da zinare huɗu (C-1 1000 m: 1978, C-2 500 m: 1982, 1983; C-2 10000 m:
1985), azurfa uku (C-1 10000 m: 1981, C-2 1000 m: 1982, 1985), da tagulla uku (C-1 10000 m: 1975, 1978; C-2 1000 m: 1983).