Mezue ahịrịokwu na-esonụ: Heinz Grobat bụ onye Switzerland lara ezumike nká slalom canoeist onye mpi site na mmalite afọ 1960 ruo mmalite afọ 1970. O ritere ọla nchara n'asọmpi otu C-1 n'asọmpi
1963 ICF Canoe Slalom World Championships na Spittal.