Koenig only had four points through the first 34 and change, but scored 10 points in a 2:05 second-half stretch for the Badgers (15-3, 4-1 Big Ten), which moved into a tie for first place in the Big Ten after their 17th straight home victory. He finished with a team-high 16 points.
Wisconsin had won all 10 of its home games by an average of 27.6 points, but the Badgers had a fight on their hands against one of the worst defensive teams in the conference.
In conference games, Michigan (12-7, 2-4) had given up 80.4 points per game (12th) and was allowing teams to shoot 53.4 percent (14th) from the field and 55.3 percent (14th), but the Badgers spent most of the game ice cold.
After shooting 37.9 percent in the first half, Wisconsin missed seven of its first eight shots and went without a field goal for 7:13, but the Badgers dug itself out of it with a 13-5 run to tie the game at 43 with 8:16 remaining.
Muhammed-Ali Abdur-Rahkman hit a 3-pointer to give Michigan the lead back and Duncan Robinson hit one on the next possession to put the Wolverines up six, but the Badgers executed a 6-0 run with Zak Showalter cleaning up an offensive rebound and Koenig driving to the basket for consecutive buckets.
He moved the production out to the perimeter from there. Koenig hit a 3-pointer from the top of the key to make it 52-49 and then – calling for the ball along the baseline – hit another in front of the Badgers’ bench.
When Nigel Hayes dropped a 3-pointer from the top of the key, the Badgers’ run was 15-0 and the Wolverines couldn’t recover.
Senior Zak Irvin scored 20 points to lead Michigan, which put four players in double figures but still lost for the 17th time in the last 19 games against Wisconsin.
Wisconsin returns to action Saturday afternoon with a road contest at Minnesota
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