Miami led 36-21 late in the first half and 38-24 early in the second but sorely missed Jack McClinton. The senior guard was ejected for a flagrant foul midway through the first half after hitting 4-of-4 three-point shots for 12 points in eight minutes.
The Hurricanes were already without reserve guard Eddie Rios, suspended indefinitely Tuesday for a violation of team rules. With their backcourt depleted, Ohio State's full-court pressure began to take a toll in the second half.
Miami committed turnovers on five consecutive possessions, allowing the Buckeyes to run off 13 straight points--six by Evan Turner--to cut the deficit to 38-37.
The Hurricanes rebuilt the margin to eight points before Ohio State made another charge. Turner's layup with 7:28 left tied the game at 54, and the Buckeyes took their first lead on their next possession when Jeremie Simmons hit a 3-pointer, his first points of the night.
The Buckeyes stayed ahead the rest of the way. Diebler's sixth and final 3-pointer made it 66-61, and the Hurricanes committed their 18th and final turnover in their backcourt trailing 70-67 with 25 seconds left.
Simmons made both ends of a 1-and-1 with six seconds left to seal the victory.