By OWEN CANFIELD
AP Sports Writer
NORMAN, Okla. - Plenette Pierson led five players in double figures with 18 points, and No. 7 Texas Tech ran its winning streak to 14 with an 80-71 victory over No. 23 Oklahoma on Wednesday night.
The Lady Raiders (14-1, 3-0 Big 12) were too deep and too quick for the Sooners (10-5, 1-1), who had won 15 straight at home in the conference.
Freshman Erin Grant scored 16, Natalie Ritchie and Jia Perkins had 13 and Cisti Greenwalt 11 for Texas Tech.
Maria Villarroel scored 20 and Theresa Schuknecht 15 for Oklahoma, which hadn't lost a league game at home since falling to Iowa State 81-79 on Jan. 6, 2001.
The Sooners had won five in a row against Tech, but they committed 17 turnovers and shot just 37.5 percent in falling to 0-4 against top-10 teams this season.
The Lady Raiders scored the game's first eight points, six coming on consecutive baskets inside by the 6-foot-5 Greenwalt. Oklahoma got on the board when Schuknecht scored 2:28 in, starting a 6-0 run.
But the Lady Raiders pushed the lead to 17-11 on a 3-pointer by Ritchie, and after Oklahoma got to 19-17 with 8:39 left, Tech scored seven straight to build a comfortable lead again.
Grant scored eight of Tech's final nine points of the half as the Lady Raiders took a 40-29 lead. The score was 49-39 when they scored five in a row to make it a 15-point cushion with 12:32 left. Oklahoma got no closer than eight after that.