LUBBOCK, Texas (AP) -- Markel Brown scored a career-high 30 points to lead Oklahoma State over Texas Tech 80-63 on Tuesday night.
The sophomore went 7 of 12 from the field, including 3 of 6 from beyond the arc, and didn't miss any of his 13 free-throw attempts.
Le'Bryan Nash scored 16 points for the Cowboys (11-11, 4-5 Big 12).
Keiton Page and Cezar Guerrero missed the only free throws in the game for the Cowboys, who made 33 of 35 overall.
Jaye Crockett scored 16 points and Robert Lewandowski added 14 for the Red Raiders (7-14, 0-9), who tied their worst start in conference play since 2000.