<prompt> Ngwala tšwetšopele ya serapa se - Brett Petersen yo a belegwego ka la 9 Setemere 1976 ke moapedi wa peleng wa Afrika Borwa, yo a bego a ithutetše dipapadi tša go rutha ka matswele. O thopile sefoka sa gauta ka 100 m breaststroke ka Dipapading tša Afrika ka moka tša 1999  <response>: , gomme ka morago a ba yo mongwe wa ba 8 ba mafelelo bokgoleng bjo bo swanago dipapading tša Olimpiki tša Selemo tša 2000. Ge a be a ithuta kua United States, Petersen e be e le karolo ya sehlopha sa 200-yard medley relay seo se ilego sa thopa maemo a godimo ka 1998 Atlantic Coast Conference Swimming Championships. Petersen gape o bapetše Florida State Seminoles ya go rutha le go thuma sehlopha sa go rutha ka tlase ga molaodi Neil Harper, gomme ka morago a ba moithuti wa tshepedišo ya tshedimošo ya taolo ka Yunibesithing ya Florida State ka Tallahassee, Florida. 