Kammala wannan jumla: Ratnasekera ya yi gasa ne kawai a cikin
'yan mata 50 m freestyle a gasar Olympics ta 2000 a Sydney. Ta sami tikiti daga FINA, a ƙarƙashin shirin Universality, a cikin lokacin shigarwa na 29.90. Ta yi iyo a zagaye na biyu, ta yi yaƙi da wasu masu iyo shida don gyara shingen na dakika 30 kuma ta fara buga bango a cikin lokaci mai kyau da kuma rikodin Sri Lanka na 29.88. Nasarar da Ratnasekera ta samu ba ta isa ta sanya ta zuwa wasan kusa da na karshe ba, yayin da ta sanya na sittin da hudu a cikin prelims.