Selby, who had a quiet night until midway through the second half, made a three-point play with 9:48 to go to keep her team close. But Duke missed three key scoring opportunities the next time down.
The Blue Devils switched to a zone in the second half after that same move worked so well in a 74-47 rout of St. John's, but Orrange and Kokenis successfully drove and dished — and they also handled Duke's trap press. Kokenis had eight of Stanford's 21 assists.
"First, we allowed them to get 81 points. We're not going to beat a team if it doesn't start on defense," Gray said. "They're a very strong group. If one doesn't have the shot the other one is looking for them."
Elizabeth Williams, Duke's star 6-foot-3 freshman playing with a stress fracture in her lower right leg, quickly scored to make it 48-39. She scored 12 points while playing much of the game in foul trouble.
Stanford got a scare with 6:51 left in the first half when Nneka Ogwumike scored on a drive to make it 30-16 and then turned into Kathleen Scheer's right elbow. She briefly went down and took a seat for all of 1:23.
Stanford began the game 7 for 11 and had assists on each of those baskets, and the Cardinal limited Duke to one attempt thanks to Chiney Ogwumike's six rebounds in the opening 8½ minutes. Stanford held a 9-3 rebounding advantage after getting outboarded 38-36 against South Carolina two nights earlier. That became a focus for both teams in this game.
Duke was held to just 39.7 percent from the field, going 3 for 14 from 3-point range. That was a big change for a Blue Devils team that had shot above 50 percent in the first half of its previous six games, and went 53.7 percent overall Saturday night to follow up its season-best 65.6-percent performance from the field in a 96-80 second-round win over Vanderbilt in which they dished out 28 assists.
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