<prompt> Ngwala tšwetšopele ya serapa se - Igor Anatolievich Potyakin ; o belegwe ka 14 Setemere 1955 ke mosatedi wa go rutha wa Russia yo a rotšego modiro yo a thopilego sefoka sa bronze ka 4×100 m medley relay ka 1974 European Aquatics Championships  <response>: .. le Nakong ya mošomo wa gagwe o thopile difoka tše tshela tša bosetšhaba ka 100 m 19731976 le 200 m backstroke 1974 le 4×100 m medley relay 1974. 