<prompt> Bhala ukuqhubeka kwalesi sigaba - Emidlalweni yama-Olimpiki yasehlobo ka-2004 e-Athene, uTregubova waphinde wafanelekela umjaho wamamitha angu-50 wesitayela samahhala  <response>: ngokudlula isilinganiso se-FINA B-cut sika-26.90 esivela eMqhudelwaneni WaseRussia Ovulekile eMoscow. Ebhukuda ekushiseni okufanayo neSydney, wathatha indawo yesibili ngaphezu kukaRoshendra Vrolijk wase-Aruba ngo-0.03 womzuzwana, ngaphandle kwesikhathi sakhe sokungena esingu-28.40. UTregubova wehlulekile ukudlulela kuma-semifinals, njengoba wabekwa endaweni engamashumi amane nesishiyagalombili jikelele kwabadlali abangama-75 ngosuku lokugcina lokulungiselela. 