NORMAN, Oklahoma — Somehow, Oklahoma State wasn't ready for a showdown with its in-state rival.
Buddy Hield scored 27 points on 10-for-10 shooting to help No. 18 Oklahoma defeat the 24th-ranked Cowboys 82-65 on Saturday night.
Oklahoma State fell behind by 23 points in the first half.
"We didn't come out ready to fight," Oklahoma State guard Anthony Hickey said. "We started out and were down 20 fast. We just have to come out and be more aggressive."
Oklahoma State's Le'Bryan Nash and Phil Forte, the top two scorers in the Big 12, were held in check. Nash scored 15 points, but he made just 6 of 15 shots. Forte scored 11 points on 3-for-11 shooting.
Oklahoma was especially good at neutralizing Forte.
"They were triple-teaming him," Oklahoma State coach Travis Ford said. "When he comes off screens, they were sending everybody after him."
Leyton Hammonds scored 15 points and Hickey added 14 for the Cowboys, who lost their second straight.
Jordan Woodard scored 13 points, Ryan Spangler had 11 points and 11 rebounds and TaShawn Thomas added 10 points for the Sooners (12-5, 3-2 Big 12), who snapped a two-game skid and got their third win over a ranked team in conference play.
Oklahoma State missed its first 15 3-pointers before finally making one with just over 11 minutes remaining. The Cowboys (12-5, 2-3) shot 37 percent overall.
Oklahoma State hung around early, but Oklahoma extended its lead late in the first half. Hield caught a long pass from Jordan Woodard and converted a layup, then Hield made a 3-pointer on the next trip down the floor to put the Sooners up 33-16 with just over 4 minutes left before the break. Another 3 by Hield extended the lead to 20.
Hield scored 18 points on 6-for-6 shooting in the first half to give the Sooners a 41-20 lead at the break. The Sooners shot 61 percent in the first half, and the game was never close after the break.
The Sooners finished the game in style. Hield threw down a powerful putback jam, then Spangler dunked on Oklahoma State's Michael Cobbins, the No. 2 shot blocker in the Big 12. Spangler made the free throw after Cobbins' foul to put Oklahoma up 78-59, prompting Oklahoma's fans to chant "Little Brother."
Oklahoma State was looking to bounce back to a loss at Kansas on Tuesday, but left with its second-worst loss of the season. Hickey already is looking forward to the rematch with Oklahoma on Jan. 31 in Stillwater.
"It's all about when you get knocked down, we have to get back up and keep fighting," Hickey said. "It's a long season. We aren't going to get over this, and we're going to meet them again."
Oklahoma St.: The Cowboys went 0 for 13 from 3-point range in the first half and 7 for 13 after the break. ... Cobbins, who entered the game with a block in all but one game this season, finished with one.
Oklahoma: Thomas, Oklahoma's No. 2 scorer for the season, did not take a shot in the first half and did not score. He played just seven minutes because he picked up two quick fouls. ... Oklahoma outscored Oklahoma State 16-8 from the free-throw line.
Oklahoma St.: hosts Texas Tech on Wednesday.
Oklahoma: at Kansas on Monday.
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