<prompt> Qedela umusho olandelayo: UPietzsch uphinde wathola impumelelo enkulu kuma-FIL World Luge Championships ngezindondo eziyisithupha, kufaka phakathi ezine zegolide Izibili zamadoda: 1983, 1985, 1987; Ithimba elihlanganisiwe: 1990 nezethusi ezimbili Izibili zamadoda:  <response>: Ngo-1989, ngo-1990. Wabuye wathola izindondo ezintathu kuma-FIL European Luge Championships ngezindondo ezimbili zegolide Amadoda amabili kanye neqembu elixubile: bobabili ngo-1990 kanye nesiliva elilodwa Amadoda amabili: 1986. 