WACO, Texas — Brittney Griner and the top-ranked Baylor Lady Bears are still undefeated and already have at least a share of the Big 12 conference title.

Griner had 18 points, 14 rebounds and matched a career high with five assists as Baylor overcame one of its worst extended stretches of bad play all season for a 56-51 victory over Texas Tech on Saturday night.

Destiny Williams added 16 points for the Lady Bears (27-0, 14-0), getting most of her points on layups — several coming at key times. Her layup with 7:49 left, on a play started by Griner, broke a 46-all tie and put Baylor ahead to stay.

The Lady Raiders (17-9, 5-9) are the only Big 12 team to keep the final margin against Baylor under 10 points. They lost 72-64 at home a month earlier.