Florida, Wichita State and Arizona are the top three teams in The Associated Press college basketball poll for the second straight week.
Ryan Evans scored 18 points and Jordan Taylor added 17 points and six assists for Wisconsin, which ended Montana's school-record 14-game winning streak with a 73-49 win on Thursday.
Wisconsin 67, Purdue 62
Freshman reserve Aaron White scored 16 of his 18 points in the second half and Iowa stunned No. 11 Wisconsin 72-65 on Saturday, snapping the Badgers' six-game winning streak.
Darius Johnson-Odom scored 17 points and No. 16 Marquette knocked off in-state rival Wisconsin 61-54 on Saturday.
Wisconsin 69, Iowa 52
Wisconsin 65, Penn St. 61
Freshman Robbie Hummel scored a career-best 21 points on 8-of-12 shooting and Purdue upset No. 8 Wisconsin 72-67 on Saturday night to extend the Boilermakers' winning streak to nine.
E'Twaun Moore scored 16 points and Purdue beat No. 11 Wisconsin 60-56 on Saturday, snapping the Badgers' 10-game winning streak.
Michael Flowers scored 23 points and No. 17 Wisconsin's man-to-man defense stifled Penn State as the Badgers extended their winning streak to eight games with an 80-55 victory Tuesday night.
A.J. Ratliff scored 18 of his season-high 20 points in the second half and Indiana held off a late comeback to beat No. 2 Wisconsin 71-66, ending the Badgers' 17-game winning streak.
Brian Butch and Alando Tucker scored 16 points each and Wisconsin beat Michigan 71-58 on Wednesday night to extend the nation's longest winning streak to 16 games, breaking a 56-year school record.
Alando Tucker had 32 points and 10 rebounds and Brian Butch added a career-high 27 points and had 11 rebounds as No. 7 Wisconsin beat No. 2 Pittsburgh 89-75 on Saturday, snapping the Panthers' 21-game nonconference winning streak.
Ben Woodside scored 24 points and North Dakota State upset No. 13 Wisconsin 62-55 Saturday, snapping the Badgers' 27-game winning streak at home against nonconference opponents.
Illinois 75, Wisconsin 65