WACO, Texas (Ticker) -- Stephen and Joey Graham made sure that Oklahoma State rolled over Big 12 Conference foe Baylor once again.
Stephen Graham scored 10 of his 13 points in the first half and his twin brother, Joey, added 12 as No. 11 Oklahoma State beat Baylor for the 15th time in their last 16 meetings, 81-63.
Back on January 22, the Cowboys (17-3, 7-2 Big 12) were coming off a tough loss to Texas when they rolled to an 82-53 victory over the Bears behind 24 points by Joey Graham.
In this one, Stephen Graham provided the early spark with seven points in the first nine minutes of the contest. Joey Graham added six over the burst as Oklahoma State took an 18-12 lead.
Ivan McFarlin, who led the Cowboys with 18 points, added a layup, two free throws and a follow shot to push the lead to 27-12 with 7:42 remaining. John Lucas added two 3-pointers in the final 2:02 of the first half for a 47-26 lead at the break.
"It is disappointing to have moments when we stand still and let them make a run," Baylor guard Aaron Bruce said. "In the Big 12, being such a great conference, you can't afford to do that.
"They were really good on defense in the first half," Bears forward Tim Bush said. "Every time I tried to penetrate, someone was up. They took away all the things we tried to go to in the first half but we did better in the second half."
Oklahoma State pushed the lead to 31 points in the second half before Baylor outscored the Cowboys, 21-13, down the stretch. Bruce, who finished with a season-high 33 points, had 18 points over the final 6:25.
"In the second half, I was really proud of our team's effort and of outscoring OSU," Baylor coach Scott Drew said. "I want to thank the crowd for coming out and staying and cheering us on. We need to play a nearly perfect game and have leading teams have a less than perfect game to win."
Stephen Graham shot 5-of-6 in 26 minutes off the bench and Lucas and JamesOn Curry scored 14 points apiece for Oklahoma State, which shot 57 percent (28-of-49), including 12-of-21 from the 3-point arc.
"I'm happy we got the win but we can't discredit Baylor," Stephen Graham said. "They played a great game."
Bruce, who shot 11-of-18 from the field with five 3-pointers, was the only player in double figures for the second straight game for Baylor (9-10, 1-7), which absorbed its fifth straight loss, and 15th straight to a ranked opponent.
Bush scored seven points and grabbed eight rebounds for the Bears, who shot 29 percent (7-of-24) in the first half.