Jon Diebler scored 20 points and Evan Turner had 19 for the Buckeyes (4-0), who won for only the second time in seven games in the ACC-Big Ten Challenge. Miami (4-2) fell to 0-3 in the series.
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.
Lance Hurdle scored 14 points to lead Miami, which shot only 39 percent. McClinton had 12, and Cyrus McGowan added 10 points and 12 rebounds for his first double-double.