Courtney Paris had 15 points with 14 rebounds for her 111th consecutive double-double and scored the tiebreaking basket with 34 seconds left to help No. 2 Oklahoma beat fourth-ranked Baylor 56-51 on Wednesday night.
The game was tied 11 times, the last at 51-all before Paris scored on an inside shot.
Melissa Jones had 16 points for Baylor (17-2, 5-1), which had its 11-game winning streak snapped and lost at home for the first time this season.
Former President George W. Bush and wife Laura were sitting in the first row behind the Baylor bench for the highest-ranked conference matchup ever in the Big 12, which has a nation-best six teams ranked in the women's Top 25.