<prompt> Qedela umusho olandelayo: UKurt Poletti owazalwa ngo-23 Ephreli 1960 ungumshayeli we-bob waseSwitzerland owaqhudelana ekuqaleni kwawo-1980. Wathola izindondo ezimbili emdlalweni wabesilisa abane kuma-FIBT World Championships ngegolide ngo-1983 nesiliva ngo-1984.  <response>: Ngo-1981, ngaqala ukuhlanganyela enkonzweni. 