The Badgers outscored Purdue 17-6 to begin the game and 9-2 to start the second half on their way to a 72-58 victory on Saturday in Mackey Arena, where Wisconsin triumphs have been few and far between.
After beginning the season with 16 consecutive victories, Wisconsin lost at Indiana, to Michigan in the Kohl Center and then at Minnesota, giving up 75, 77 and then 81 points, respectively, in those conference defeats.
That was the first time Wisconsin had lost three in a row since the 2011-2012 season when it lost consecutive games to Iowa, Michigan State and Michigan before ending that drought by winning 67-62 at Purdue.
Wisconsin laid the foundation for this streak-ending victory with a solid beginning that included 3-pointers from forward Sam Dekker, center Frank Kaminsky and guard Ben Brust. With 15:18 remaining in the first half, Wisconsin had a 17-6 advantage, and cold-shooting Purdue was forced to play from behind the rest of the way.
The Boilermakers' chances were damaged when 7-foot sophomore center A.J. Hammons was saddled with two fouls in the first 90 seconds, then picked up his third with 9:52 remaining in the first half.
Hammons, who had attempted 31 free throws in Purdue's previous two games, struggled to become part of the action when he returned to the game with just more than 13 minutes remaining, and the Boilermakers were forced to settle for 3-point attempts, which is not their forte.
Purdue fell to 13-7 overall and 3-4 in the Big Ten, losing for the second consecutive time. The Boilermakers were coming off a 63-60 double-overtime loss on Wednesday night at Northwestern, a game they led by seven points late in regulation.
This was Purdue's second conference home defeat in four games, after falling to Ohio State in the Big Ten opener.
All five Wisconsin starters reached double figures, led by Kaminsky's 16 points, Dekker's 15 and 15 from point guard Traevon Jackson.
NOTES: With a driving layup in the first half, Purdue senior G Terone Johnson became the 30th player in school history to reach 1,200 points in his career. ... The 58 points allowed was Wisconsin's best defensive effort since allowing 49 in a Jan. 2 victory at Northwestern. ... Dekker's 15-point effort for the Badgers was close to the Wisconsin forward's team-leading average of 14.1. He is one of five Bo Ryan players to average at least 9.1 points a game.