Fans swarmed the court to celebrate the win, the Lady Raiders' second over a Top 25 team in the past week. The win avenged a loss in Lubbock last year when Brittney Griner was ejected for punching a Texas Tech player.
Griner finished with 15 points and six rebounds to lead Baylor (24-2, 11-1).
Texas Tech led most of the game, going ahead 52-37 with 5:23 left when Kierra Mallard hit a jumper in the lane. Baylor used a 6-0 run that included a 3-pointer by Melissa Jones and a bucket by Odyssey Sims -- her first of the game -- to whittle the deficit to 52-43.
Christine Hyde got a layup to put the Lady Raiders up 54-43 before Griner hit two free throws to pull within 54-45. But the Lady Bears were too far behind down the stretch.