DALLAS (Ticker) -- Two straight double-digit comebacks proved too much for No. 3 Texas.
Andre Emmett had 30 points and a season-high 11 rebounds and Nathan Doudney recorded career highs with 28 points and seven 3-pointers as Texas Tech snapped its 13-game skid against Texas with a 92-81 quarterfinal triumph in the Big 12 Conference tournament.
"Texas has beaten us twice during the year and now they've got to come back and play us a third time," Texas Tech coach Bob Knight said. "I think the fact they had beaten us twice worked a little bit in our favor and not quite in theirs. Maybe it detracts a little bit from their preparedness for the game."
Kasib Powell registered a triple-double with 12 points, a career-high 12 rebounds and 10 assists for the Red Raiders (18-11), who will meet Oklahoma in Saturday's semifinals and likely need to win the title here to earn a spot in the NCAA Tournament.
"I think they (Texas) thought they were going to be able to pressure us a lot," Powell said. "We just moved the ball around and just got it to the open person. Will (Chavis) and Nathan hit a lot of open shots and that just opened up everything to us."
Chavis hit 3-of-5 from beyond the arc.
Texas rallied from a 15-point deficit last Saturday to earn the second seed in the conference tournament with an important 76-71 victory at Oklahoma.
On Friday, Emmett converted a pair of free throws with 2:19 left in the first half as Texas Tech outscored Texas, 31-17, during a 12-minute span and opened a 48-28 cushion. That marked the first time Texas had trailed by 20 in an opening half this season.
"I'm not sure you can call them upsets," Texas coach Rick Barnes said. "I think tournament play - especially conference tournament play - it can happen. That's why you have these tournaments. Texas Tech played as well as any team we've played all year."
Emmett hit 12-of-21 from the floor (57 percent) in the contest, matching a Big 12 tournament record for field goals made.
Doudney already had established career highs at halftime with 17 points, six field goals and five 3-pointers.
"Doudney has been really disappointing over the course of the year, right from the beginning," Knight said. "He played well last night and that's why when we went today to decide on a starting lineup really Doudney would not have gotten the vote. And I ended up casting the deciding ballot on the thing because he had played well last night."
After contributing just six points on 2-of-8 shooting in the first half, T.J. Ford finished with 23 points and eight assists as Texas pulled within 80-74 with 3:37 to play.
"We didn't come out with the intensity," the Texas point guard said. "They came out and set the tempo and usually, when you establish tempo early, the game will go your way."
The Longhorns (22-6) lost for just the third time in 42 games against intrastate rivals during coach Rick Barnes' five seasons and may have cost themselves a No. 1 seed in the NCAA Tournament.