The Kings, who entered the game with the NBA's worst record, got 20 points each from DeMar DeRozan and Daeqwon Plowden, who scored 10 in the decisive fourth quarter. Memphis, with eight players on the injured list, was led by Javon Smalls with 21 points.
Sacramento built a double-digit lead midway through the third quarter with an 18-6 rally and extended it with a 15-4 run in the fourth capped by a 3-pointer from Westbrook. The Kings led 63-61 at halftime as both teams shot better than 54%.