Ryan Spangler had 20 points and 14 rebounds to help No. 7 Oklahoma defeat Wisconsin 65-48 on Sunday afternoon.
Spangler made 7 of 9 shots, including 2 of 3 3-pointers, and fell just short of his career high of 21 points.
Isaiah Cousins added 14 points for the Sooners (4-0), who led for all but 30 seconds against last year's national runner-up. Buddy Hield, who averaged 25.3 points in his first three games, was held to 12 points on 5-for-16 shooting.
Nigel Hayes had 20 points and 11 rebounds for the Badgers (4-3), who had won their previous two games. Wisconsin made 7 of 33 3-pointers but hit just 9 of 35 shots inside the arc.
The Sooners held the Badgers to 23.5 percent shooting, Wisconsin's worst shooting performance in a game since a 22.2-percent effort against North Dakota State in 2006.