<prompt> Ngwala go tšwela pele ga serapa se - Katona o belegetšwe Eger, Heves, Hungary. Ge a be a na le nywaga e 17, Katona o ile a emela naga ya gagwe ka 1958 European Aquatics Championships yeo e bego e swerwe kua Budapest, Hungary. Ka 1500 metres o ile a ba wa bobedi ka morago ga Ian Black go thopa sefoka sa silibera, gomme a thopa sefoka sa bronze sa sehlopha ka 4 x 200 metres freestyle relay. Nywaga e mene ka morago kua Leipzig go Dikgaisano tša Ditšhabatšhaba tša Dipapadi tša Meetse tša 1962  <response>: , Katona o ile a boela gae a thopile sefoka sa gauta ka lebelo la go kitima la go kitima dimithara tše 1500 ka mokgwa wa go kitima o lokologile. Di-Olympic tša selemo tša 1960 kua Roma, Katona o fihlile mafelelong a lebelo la 1500 ya metara ya go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima ka go kitima. Nywaga e mene ka morago kua Dipapading tša Diolimpiki tša Selemo tša 1964 e be e le mokgwa o swanago, o ile a palelwa ke go fihlelela makgaolakgang ka 400 m freestyle goba 4 × 200 m freestyle relay, eupša ka 1500 m freestyle o ile a kgona go fetša la seswai ka makgaolakgang. 