<prompt> Bhala ukuqhubeka kwalesi sigaba - Emidlalweni yama-Olimpiki yasehlobo ka-2000 eSydney, uSigurdardottir waphinde wancintisana emjahweni wokugijima ngamamitha angu-50  <response>: . futhi. Uthole isilinganiso se-FINA B-cut esingu-26.93 emhlanganweni weMare Nostrum eBarcelona, eSpain. Uphonsele inselelo abanye ababhukudi abayisikhombisa ebangeni lesihlanu, kufaka phakathi intsha uChiang Tzu-ying waseChinese Taipei, uMarijana Šurković waseCroatia, noJūratė Ladavičiūtė waseLithuania. Njengoba ayesehluleke ngemizuzwana engu-0.79, uSigurdardottir wehla kancane emgqeni wokugcina wamamitha angu-15 wafika endaweni yokugcina ngo-27.58, cishe isekhondi eligcwele ngemuva komholi uChiang. USigurdardottir wehlulekile ukuqhubekela kuma-semifinals, njengoba wabeka isigaba samashumi ayisihlanu nanye esigabeni esiphelele sabashayeli abangama-74 kuma-prelims. 