<prompt> Pedzisa mutsara unotevera: Helm akawanawo menduru 19 paICF Canoe Sprint World Championships negoridhe gumi K-1 1000 m: 1978, 1979, 1981, 1982, 1983; K-2 500 m: 1978, K-4 500 m: 1983, K-4 1000 m: 1978, 1979, 1981, masirivha matanhatu K-1 1000 m: 1977, K-2 500 m: 1979, K-4 500 m: 1982, K-4 1000 m:  <response>: 1975, 1982, 1983, uye ndarira nhatu K-1 1000 m: 1975, K-2 1000 m: 1974, K-4 500 m: 1981. 