<prompt> Ngwala tšwetšopele ya serapa se - Ralph Pichler yo a belegwego ka la 20 Aprele 1954 kua Thun, Bern ke motshameki wa bob wa Switzerland yo a phenkgišanego ka bo-1980. O thopile dimetale tše hlano go FIBT World Championships ka gauta tše pedi Two-man: 1983, 1987  <response>: , e tee ya silifera Banna ba babedi: 1986, le tše pedi tša boronse Banna ba bane: 1986, 1987. 