Mezue ahịrịokwu na-esonụ: Pierre Dufour bụ onye Switzerland lara ezumike nká slalom canoeist onye mpi na n'oge-na-n'etiti 1950s. O ritere ihe nrite abụọ n'asọmpi C-2 n'asọmpi ICF Canoe Slalom World Championships na ọlaọcha na
1953 na ọla nchara na 1951.