OKLAHOMA CITY — Natalie Ventress and Zahna Medly scored 18 points each as seventh-seeded TCU defeated No. 10 seed Texas Tech 75-59 in the first round of the Big 12 tournament on Friday night.TCU (18-13) will face off against No. 7 and second-seeded West Virginia (27-3) in the quarterfinals today. The Horned Frogs dropped two contests against the Mountaineers in regular-season play. The Lady Raiders (6-24) led by one point at the half and the game remained within a four-point margin until a run by TCU 9 minutes after the break. The Horned Frogs were up by one midway through the second and exploded on a 14-0 run — holding Texas Tech scoreless for 6 minutes — to go up by 15 with just over 7 minutes to play.Amber Battle scored 23 points to lead the Lady Raiders and Ivonne Cook-Taylor added 18 points. • Kansas 87, Kansas State 84: Chelsea Gardner scored six of her 29 points in overtime as eighth-seeded Kansas defeated No. 9 seed Kansas State. Kansas (13-18) will play No. 1 seed Baylor (26-4) in the quarterfinals today.Kansas State (11-19) used an 11-5 run to open overtime, taking an 84-78 lead with 2:11 to play. Natalie Knight made two free throws, Asia Boyd converted a three-point play, and Gardner was 4 of 4 from the line to cap the scoring. Breanna Lewis had 20 points and 14 rebounds for Kansas State.