<prompt> Pedzisa mutsara unotevera: Wichmann akabudirirazve paICF Canoe Sprint World Championships, achikunda menduru dzinokwana 18. Izvi zvaisanganisira ndarama pfumbamwe C-1 1000 m: 1979, C-1 10000 m: 1970, 1971, 1974, 1977, 1979, 1981, 1982; C-2 1000 m: 1971, sirivha ina C-1 500: 1971, C-1 1000 m: 1966, 1978; C-2 1000 m: 1970, uye ndarira shanu C-1 1000 m: 1973,  <response>: 1975; C-1 10000 m: 1973, 1983; C-2 1000 m: 1973. 