<prompt> Tlatša polelo ye e latelago: Ratnasekera o ile a phadišana fela ka  <response>: 50 m freestyle ya basadi dipapading tša Olimpiki tša Selemo tša 2000 kua Sydney. O ile a amogela thekethe go tšwa go FINA, ka tlase ga lenaneo la Universality, ka nako ya go tsena ya 29.90. Ge a be a rutha ka lebelo la bobedi, o ile a lwa ntwa ya lebelo le legolo le ba bangwe ba tshelelago ba go rutha go tloša lepheko la metsotswana e 30 gomme a betha leboto la pele ka nako e botse le rekoto ya Sri Lanka ya 29.88. Phenyo ya Ratnasekera ya go se dire boiteko e be e sa lekane go mo iša go makgaolakgang, ka ge a ile a bewa maemong a masometshela-nne ka kakaretšo go makgaolakgang a pele. 