Chiney Ogwumike scored 26 points to help No. 4 Stanford beat 15th-ranked UCLA 68-57 on Sunday for the Cardinal's 15th straight win over the Bruins.
Ogwumike has played well against ranked teams this season averaging 21.3 points.
Joslyn Tinkle added 10 points and nine rebounds and Mikaela Ruef had a double-double with 10 points and 10 rebounds for the Cardinal (24-2, 13-1 Pac-12).
Stanford held UCLA 13 points below the Bruins' season average and also outrebounded the Bruins 38-31. Stanford, which leads the Pac-12 in scoring defense, has held opponents under 70 points for 44 straight games.
Atonye Nyingifa led UCLA (19-6, 10-4) with 12 points and five rebounds and Alyssia Brewer and Markel Walker both scored 10 points.
Stanford's offense was not at its best in the game as the Cardinal shot just 39.7 percent from the floor and 21.1 percent from beyond the arc.
UCLA actually shot a higher percentage than Stanford (44.4 percent) but that never translated to getting the lead.
The Cardinal didn't pull away until late. They held a 30-25 lead at halftime and were up five with 15 minutes remaining. Then Stanford used a 16-5 run, highlighted by Bonnie Samuelson's 3-pointer, to take its first double-digit lead of the game at 43-32. Stanford led by at least eight points the rest of the way.
UCLA's only conference losses this year have come against the Cardinal and No. 6 California. The Bruins are in third place behind those two teams in the conference standings with four games to play.