<prompt> Ngwala go tšwela pele ga serapa se - Henry Gerlach ke motshameki wa bob ya Jeremane Bohlabela yo a ilego a phenkgišana mathomong a bo-1980. O thopile dimetale tše pedi ka go ditiragalo tša banna ba bane go FIBT World Championships ka gauta ka 1981  <response>: le ya boronse ka 1983. 