After a tough start, the Wolverines led at halftime 41-40 and came out charging in the second half thanks to Derrick Walton's hot hand.
"I thought the better point guard won the game," Walton said when speaking on Oklahoma State point guard Jawun Evans. "I shook his hand at the end of the game, said he was a hell of a player, but I think I'm a hell of a player, too."
At one point, Michigan was 11-14 from 3-point range in the second half with buckets from Zak Irvin, Walton, Duncan Robinson and Muhammad Ali Abdur-Rahkman.
Walton led the team in points with 26, including going 3-6 from 3-point range 7-13 for field goals and 6-7 for free throws.
"We went to halftime, said we needed to calm down and attack them, we were able to figure it out down the stretch," Walton said after the game.
Michigan finished the game 16-29 from 3-point range and 29-56 for field goals, but got out-rebounded 34-16 by Oklahoma State.
DJ Wilson, Rahkman and Irvin also helped the Wolverines with 19 points for Wilson and 16 each for Rahkman and Irvin.
Next up, Michigan will take on the winner of No. 2 Louisville in a rematch of the 2013 NCAA Championship.
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