<prompt> Rátkai akawanawo menduru sere paICF Canoe Sprint World Championships nendarama mbiri K-2 1000 m uye K-4 1000 m: zvose 1973, sirivha nhatu K-2 500 m: 1973, 1974; K-4 10000 m: 1977, uye ndarira nhatu K-2 1000 m: 1975  <response>: , K-4 1000 m: 1974, 1975. 