Mezue ahịrịokwu na-esonụ: Rudolf Seifert bụ onye East German lara ezumike nká slalom canoeist onye mpi na 1950s na 1960s. O ritere ihe nrite anọ na ICF Canoe Slalom World Championships na ọla edo atọ (C-2 team: 1959,
1963; Mixed C-2 team: 1957) na ọla nchara (Mixed C-2: 1957).