Crockett's two free throws with 25 seconds left staved off a late TCU rally, and Hannahs hit 4 of 5 3-pointers.
Jordan Tolbert had 11 points and nine rebounds for the Red Raiders (8-4), who have won three in a row and were playing their first road game of the season. With the win, Chris Walker became the first Texas Tech head coach to win a conference opener on the road in his first season since Dell Morgan in 1933.
Devonta Abron, starting for the first time since Dec. 4, led the Horned Frogs (9-5, 0-1) with 16 points and seven rebounds. TCU had a three-game win streak snapped in its first conference game of its inaugural Big 12 season.
Mike Brey is looking at former Notre Dame players to fill two assistant jobs that have opened up with the departures of Martin Ingelsby and Anthony Solomon.
Purdue's 2016-17 prospects got a jolt Wednesday when forward Caleb Swanigan announced he will return for his sophomore season.
Clemson's Jaron Blossomgame says he is withdrawing from the NBA draft and returning to school for a final season.