<prompt> Qedela umusho olandelayo: Schmidt, owawina zonke ezintathu ICF Canoe Sprint World Championships abesifazane kayaking imicimbi ngo-1981, 1982, 1983,  <response>: ngo-1985, nango-1987, yayithandwa kakhulu kulo mqhudelwano kodwa yaphazanyiswa uGesheva owaqeda ngokushesha. 