<prompt> Qedela umusho olandelayo: Christian Poswiat owazalwa ngo-26 Juni 1968 ungumbhukudi waseJalimane owawina izindondo ezimbili zethusi emidlalweni ye-medley emidlalweni ye-  <response>: 1987 European Imidlalo yasemanzini Championships futhi 1991 Imidlalo yasemanzini World Championships. Ubuye waqhudelana kuma-Olympics asehlobo ka-1988 nango-1992 emjahweni we-100 m kanye ne-200 breaststroke; impumelelo yakhe enhle kakhulu kwaba yindawo yesishiyagalombili emncintiswaneni we-100 m ngo-1988. 