Liz Donohoe scored 21 points, Roshunda Johnson added 17 more and No. 19 Oklahoma State rallied in the second half to beat Southern California 66-62 on Sunday.
Oklahoma State (9-1) improved to 76-1 against nonconference opponents over the last eight seasons with the comeback victory. USC (8-3) led the entire way until the 11:58 mark of the second half, when Donohoe and Johnson keyed a 13-0 Cowgirls run that put them in front for good.
Donohoe shot 7 of 9 from the floor and had eight rebounds while Johnson shot 8 of 16 and had five assists for OSU, which won its seventh straight.
Alexyz Vaioletama scored 20 to lead the Trojans, who saw their three-game win streak snapped in their final nonconference game. Brianna Barrett added 11 points but missed two free throws with a chance to tie with 16.8 seconds left.