Freshman Tristan Thompson scored 20 points to lift No. 12 Texas over Texas Tech 83-52 on Tuesday night.

Jordan Hamilton added 16 points and Cory Joseph had 15 for the Longhorns (13-3, 1-0 Big 12).

Texas got the ball inside with ease, scoring 50 points in the paint. The Longhorns were all over Texas Tech's basket as well, pulling down rebounds off the Red Raiders' many misses.

Texas pulled away midway through the first half and Texas Tech (8-9, 0-2) was unable to counter the Longhorns offense.

The Longhorns came into the game ranked fifth in the nation in field goal defense and easily continued that trend. They held the Red Raiders to 23 field goals on 59 attempts. It was the third-worst shooting performance — 39 percent — by Texas Tech this season.

The Longhorns outscored Texas Tech 24-9 in the first 10 minutes of the second half for a 62-31 lead.

Robert Lewandowski scored 13 points and Javarez Willis added 10 for Texas Tech.

For a third straight year, the Red Raiders have lost their first two Big 12 games. They have lost nine straight in Big 12 regular season play dating to last season.

As the Longhorns continued to drive the basket through the second half, the Red Raider seniors continued to crumble. The five players hit only 4 of 17 shots in the second half for 11 points. The group went 10 of 35 for the game and scored 25 points.

Texas used a 20-6 run over about 9 minutes to pull away to a 38-22 halftime lead. The Longhorns pounded the ball inside consistently, giving Hamilton and Gary Johnson easy baskets. Texas got 22 points in the paint in the first half and the team hit 14 of 27 shots (52 percent).

Texas Tech shot poorly again, and there were always more Longhorns under the basket to pull down rebounds. Texas Tech hit 10 of 28 shots, or about 36 percent, for the half. Mike Singletary (13.7 points per game) took just three shots; he hit only one. He spent about 8 minutes on the bench after picking up two quick fouls.

In the Red Raiders' 71-59 loss to Baylor on Saturday, they shot 36 percent, their second-worst shooting performance of the season.