Ben Brust added 13 points, Traevon Jackson supplied 12, Frank Kaminsky scored 11 and Josh Gasser helped out with 10 for undefeated Wisconsin (10-0).
Marquette (5-4) was riding a two-game winning streak in its rivalry series with the Badgers coming into Saturday's game, but couldn't extend it despite Jamil Wilson's game-high 22 points.
Davante Gardner came off the bench to provide 16 for the Golden Eagles.
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