Khalil Iverson had a career-high 22 points and 14 rebounds as No. 21 Wisconsin survived Ohio State's second-half rally and won 73-67 in overtime.
Wisconsin (22-9, 14-6) led by as many as 23 points early in the second half. But Ohio State (18-13, 8-12) outscored the Badgers 27-5 over the last seven minutes of regulation to force overtime.
Wisconsin's defense held tough as the Badgers outscored the Buckeyes 10-4 in the extra period to win it.
Iverson was 10 of 14 from the floor. Ethan Happ, despite being routinely double-teamed, added 16 points, 14 boards and eight assists for the Badgers, who secured the No. 4 seed in the Big Ten Tournament later this week at the United Center in Chicago.
Rutgers will face Nebraska Wedensday at 5:30 P.M. (Big Ten Network). The winner plays #5 seed Maryland on Thursday at approximately 2 P.M. The winner of that game faces the Badgers Friday at approximately 2 P.M.