Philip Jurick grabbed 10 rebounds for Oklahoma State (11-3, 1-1 Big 12), which owned a 40-17 rebounding edge. Nash, Brown and Kamari Murphy each had six rebounds. Brown also had five assists.
TCU’s Garlon Green led all scorers with 20 points. Kyan Anderson finished with 10.
Oklahoma State led 36-22 at halftime and back-to-back field goals by Brown pushed the lead to 50-30 with 12:14 remaining. TCU (9-6, 0-2) got no closer than 14 the rest of the way.
The teams combined for 45 turnovers, 24 by the Cowboys, who broke a two-game losing streak.