LOS ANGELES (AP) -- Chelsea Gray led five players in double figures with 18 points and No. 4 Duke remained undefeated with a 75-60 victory over Southern California in the Women of Troy Classic on Saturday.
Tricia Liston added 14 points, Elizabeth Williams had 13 and Haley Peters 12 for the Blue Devils (10-0), who went 2-0 on their West Coast visit. They beat Cal State Bakersfield 97-63 Friday night for coach Joanne P. McCallie's 150th victory at the school in their opening game of the four-team event.
Gray had 10 rebounds, although Duke got beat on the boards, 44-36. Liston had four of the team's eight 3-pointers.
Cassie Harberts scored 17 points and Kate Oliver had 15 points and 10 rebounds for USC (3-7), which has lost five in a row. The Trojans committed 20 turnovers, leading to 21 points by Duke.
The Blue Devils returned to the court less than 15 hours after that win to play the slumping Trojans.
Duke built a 15-point lead early in the second half only to see the Trojans cut it to nine points with 12 1/2 minutes remaining. Alexyz Vaioletama hit a 3-pointer, Harberts made one of two free throws and Brianna Barrett scored over Williams to pull USC to 54-45.
But Oliver committed three turnovers, including throwing the ball directly into the hands of a Duke player, and the Trojans missed 5 of 7 free throws after getting within single digits.
The Blue Devils pulled away over the final 7 minutes, when Liston hit two 3-pointers.
The Trojans had coach Michael Cooper back on the bench after he missed Friday night's loss to UC Davis because of a one-game suspension issued by the school for using an ineligible player at practice, which is a NCAA secondary violation.
Duke led 39-30 at the break after the teams played a nearly even first half. The difference came at the 3-point line, where the Blue Devils were 4 of 8 while the Trojans missed seven of their eight attempts. Both teams were even in the paint (16-16) and on second-chance baskets (13-13), while USC's bench outscored the Duke reserves 9-0.
The Blue Devils' largest lead of 10 points came after they outscored USC 10-2 during a stretch late in the half. USC's only lead of the game came on the opening basket of the game.