Jarrett Culver scored 19 points, and No. 15 Texas Tech defeated Oklahoma State 78-50 on Wednesday night.
Matt Mooney scored 15 points and Tariq Owens added 11 for the Red Raiders (20-5, 8-4 Big 12), who have won five of six.
Cameron McGriff scored 18 points for Oklahoma State (9-15, 2-9), which has lost seven of eight. The Cowboys scored a season-low point total.
Texas Tech shot 9 for 14 from 3-point range in the first half to take a 44-23 lead at the break. Mooney made all four of his 3s and scored 12 points in the first half.