Marchelus Avery scored 23 points on 8-of-12 shooting, while Pat Suemnick and Bryce Thompson added 11 points apiece to lead Oklahoma State over St. Thomas 80-71 on Sunday in Stillwater, Okla.The upset-minded Tommies were down 40-33 with 15 minutes remaining until a 7-0 Cowboys run in a 47-second span gave them a 14-point cushion they ultimately wouldn’t relinquish. Consecutive 3-pointers brought St. Thomas back within eight points with 6:30 remaining, but Oklahoma State was able to keep it at bay for the remainder of the game.Avery, Suemnick and Thompson were the only Oklahoma State players to score more than eight points. Suemnick shot 5-of-6 from the field. Arturo Dean led Oklahoma State with nine rebounds and five assists.St. Thomas’ leading scorer Miles Barnstable was held to just six points in the contest and didn’t make his first field goal until there was 6:49 remaining. St. Thomas was led in scoring by Kendall Blue with 18 points, followed by Drake Dobbs, who had 14.St. Thomas went up 6-2 in the first three minutes of the game but went scoreless over the next 5:19, allowing Oklahoma State to take a 12-6 lead with 12:28 remaining in the first half. Oklahoma State made it a 17-2 run to take a 19-8 lead just past the 10-minute mark.