<prompt> Qedela lo musho olandelayo: Emidlalweni yama-Olympic asehlobo ka-2004 e-Athens, uTregubova waphinde wafanelekela  <response>: 50 m freestyle ngokufiphaza FINA B-cut ka 26.90 kusukela Russian Open Championships 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. 