In 23 years as a head coach, Tubby Smith has never had a losing season. Barring a miracle, that’s exactly where Texas Tech is headed. After falling to No. 8 Kansas 82-57 on Wednesday night, the Red Raiders must knock off Texas on Saturday and then win the Big 12 tournament — four games in four days — to finish the season at least .500. “Basketball is a game of runs, during the game and even with games,” forward Jaye Crockett said. “We know it’s going to be tough. We know what we’re getting ourselves into.” If Texas Tech is going to start any sort of run, it must shake off a lousy performance on senior night at Allen Fieldhouse, where Texas Tech still has never won in 14 tries. Tarik Black scored 19 points on 9-for-9 shooting for the Jayhawks (23-7, 14-3 Big 12), matching the school record for field goal attempts without a miss held by C.J. Giles (2005) and Mark Randall (1990). Naadir Tharpe added 16 points and freshman forward Andrew Wiggins had nine in what was likely his final game at the Phog. Toddrick Gotcher scored 10 points to lead the Red Raiders (13-17, 5-12), who trailed by 20 points at halftime and never threatened down the stretch in losing their sixth straight game. “We just weren’t thinking and throwing the ball away,” Gotcher said. “We didn’t do a good job of executing.” The lopsided victory allowed Kansas to celebrate its latest conference title in style. The Jayhawks backed into the outright championship despite a loss last weekend at Oklahoma State, and Self was so disheartened by the performance that he ordered the title T-shirts and hats waiting in the locker room to remain in their boxes. His decision was criticized in some circles, but Self defended it in a news conference Tuesday. They were finally brought out moments after the final buzzer Wednesday, along with a series of tables at midcourt that held up the Jayhawks’ 10 straight Big 12 title trophies.