 Kọkọ parí gbólóhùn yìí: Wichmann tún ṣe àṣeyọrí sí i níbi ìdíje ICF Canoe Sprint World Championships, ó gba mẹdàlì méjìdínlógún. Eyi pẹlu wura mẹsan C-1 1000 m: 1979, C-1 10000 m: 1970, 1971, 1974, 1977, 1979, : 1981, 1982; C-2 1000 m: 1971, mẹrin fadaka C-1 500: 1971, C-1 1000 m: 1966, 1978; C-2 1000 m: 1970, ati awọn idẹ marun C-1 1000 m: 1973, 1975; C-1 10000 m: 1973, 1983; C-2 1000 m: 1973. 