<prompt> Feleletša polelo ye e latelago: Dipapading tša Olimpiki tša selemo tša 2000 kua Sydney, Muller o ile a phadišana mabakeng a mane a go rutha. O fihleletše FINA A-standard ya 25.94 50 m freestyle, 55.82 100 m freestyle, le 2:00.35 200 m freestyle go tšwa go Afrika Borwa ka Johannesburg. Mo go tiragalo ya gagwe ya mathomo, 200 m freestyle, Muller o feditše lebelo la gagwe la seripa sa makgaolakgang ka nako ya 2:00.04. Pejana nakong ya dikgetho tša pele, o ile a bega nako ya bobedi e lebelo kudu le rekoto ya Afrika Borwa ya 1:59.89. Matšatši a mararo ka morago, ka 100 m freestyle, Muller o ile a fetša a le maemong a botshelela ka makgaolakgannyeng ka rekoto e botse ya Afrika ya 55.19. Ka go  <response>: 50 m freestyle, Muller o ile a ngwala nako ya 26.07 go tšwa go heat ya senyane, eupša o ile a palelwa ke go fihla semi-finals ka 11 ya lekgolo la bobedi. Letšatšing la mafelelo la lenaneo, Muller o ile a kopana gape le Loots, Sarah Poewe le Charlene Wittstock lebelong la go kitima dimithara tše 4×100. Ge a be a rutha ka mokgwa wa go rutha ka go itlhama, Muller o ile a fenya lebelo ka lebelo la 54.77, e lego rekoto e mpsha ya setšhaba, eupša ma-Afrika Borwa a ile a kgotsofalela feela go ba maemong a bohlano ka nako ya mafelelo ya 4:05.15. 