<prompt> Pedzisa mutsara unotevera:  <response>: 50 m freestyle yevakadzi pa 2000 Summer Olympics muSydney. Akagamuchira tikiti kubva kuFINA, pasi pechirongwa cheUniversality, munguva yekupinda ye29.90. Achishambira mumakwikwi maviri, akahwina muhondo yekumhanyisa achipesana nevamwe vatambi vatanhatu kuti apfuure chipingamupinyi chemasekondi makumi matatu uye akarova madziro kekutanga munguva yakanaka uye rekodhi yeSri Lankan ye29.88. Kukunda kwaRatnasekera kwakanga kusina kukwana kwakanga kusina kukwana kuti apfuure kusvika kumasemifinal, sezvo akaisa makumi matanhatu nemana mumasekondi ekutanga. 