Cade Cunningham scored five of his 19 points in the second overtime, including a contested 3-pointer with 1:33 left, to help No. 24 Oklahoma State beat sixth-ranked Texas 75-67 on Saturday.
Kalib Boone led OSU with 22 points, 15 rebounds and five blocks, including two in the second overtime after Cunningham had staked the Cowboys to a 74-67 lead with the 3-pointer and two free throws.
Avery Anderson III added 16 points and 10 rebounds for the Cowboys (12-5, 5-5 Big 12).
Andrew Jones had 17 points and Courtney Ramey 13 for the Longhorns (11-5, 5-4), who shot just 25% from the field (20-for-79) and had 21 turnovers. They hung around by forcing Oklahoma State into 35% shooting, grabbing 22 offensive rebounds and coming up with 18 steals and six blocks.
Cunningham scored the final basket in regulation, a 3-pointer with 52 seconds left to tie the score at 59. He missed another 3-pointer with four seconds left. He had two turnovers in the final minute of the first overtime, but also swiped a Texas inbounds pass with four seconds left. But he missed a short floater in the lane and the game went to a second extra period.
Cunningham made just 5 of 22 shots from the field and committed six turnovers in the physical contest.
Texas trailed 35-29 at the half, but held OSU to just 24 points in the second half and led most of the final 10 minutes, including a 51-46 advantage after a put back by Greg Brown with 6:42 to play. The Cowboys knotted the score just over a minute later.