The Longhorns (3-0) regrouped at the intermission, however, and smothered their foe. Texas handed Iowa its first loss of the season, 71-57, in the semifinals of the 2K Classic in New York City's Madison Square Garden.
The Hawkeyes (2-1) return to the arena Friday (4 p.m. CT, ESPN2) for a consolation game match-up against Syracuse. Texas faces California in the title game.
Iowa led Thursday's game 30-24 at halftime. The game was deadlocked at 43-43 with 13:58 left. Then, the Longhorns locked down on defense.
Texas exploded on a 13-0 run in the next six minutes to gain control. The lead grew to 66-50 with 3:54 on the clock.
The Hawkeyes shot just 16 of 54 (29.6 percent) from the floor, which included 4 of 14 (28.6) from behind the arc. Texas won the points in the paint battle, 36-16.
Reserve Center Gabe Olaseni was whistled for a Flagrant 2 foul in the second half which carried an ejection. He did not face suspension after that rule was changed several years ago.
An Iowa defense that held the Longhorns to 10 of 31 (32.3) shooting in the first half let it down after the break. Texas sank 17 of 28 (60.7) in the final 20 minutes.
White sank 14 of 16 free throws in the game, both career highs. Overall, the Hawkeyes were 21 of 28 from the foul line.