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By DAVID DROSCHAK
AP Sports Writer
GREENSBORO, N.C. – Daniel Ewing played a brilliant first half and J.J. Redick keyed an early second-half run as No. 4 Duke beat Ohio State 91-76 in the ACC-Big Ten Challenge on Tuesday night.
The Blue Devils have now started at least 4-0 for the 14th time in 23 seasons under Mike Krzyzewski.
Redick, a freshman, followed up his 20-point game over the weekend against UCLA with 20 more, nailing three 3-pointers in the opening 8:40 of the second half, while Ewing had 18 points.
Brent Darby, with a 8.7 career scoring average, led the Buckeyes with a career-high 35 points. His previous best was 26 against Northwestern last season.
Darby had 10 straight points late as Ohio State closed to 75-67 with 4:32 left after trailing by 27. But Redick hit a 3-pointer and Ewing made two free throws two minutes later as the Blue Devils went back up by 14 and sealed the game at the foul line.
Ohio State (1-2) had held its first two opponents to an average of 53 points, but Duke had 55 by the first media timeout of the second half and led by 19.
Ewing, who came off the bench for the first time this season, made all four of his field goal attempts and had 13 points in 13 minutes as Duke took an eight-point halftime lead.
The Blue Devils then put away the Buckeyes in the early stages of the second half.
Redick had two 3-pointers and Chris Duhon one during an 11-0 spurt to start the period as Duke went up 52-33, forcing Ohio State coach Jim O’Brien to call a timeout.
The Buckeyes needed two more in the next two minutes in an attempt to slow down Duke, but the stoppages just prolonged the inevitable.
Redick added a three-point play and three free throws, Duhon scored on a driving layup and Shelden Williams had a fastbreak dunk as part of a 21-3 run for a 62-36 lead.
The only thing that stopped Redick’s hot hand was a bloody nose midway through the second half.
As usual, Duhon was Duke’s motor, adding 10 points and 13 assists.
Duke opened with three new lineup changes as Casey Sanders and Nick Horvath replaced freshmen Shavlik Randolph and Williams in the frontcourt, while Redick began in place of Ewing at one guard spot.
But the Blue Devils started slowly and trailed for much of the opening 20 minutes as they had trouble containing Ohio State on the boards and the driving ability of Darby, who had 15 in the first half.
Duke trailed by three before closing the half with a 16-5 run over the final 4:23.
Ewing began the spurt with a 3-pointer and three free throws in a span of 28 seconds. He also added a layup a minute later as Ohio State fell behind 41-33 at halftime as three of its starters logged 20 minutes each while Duke rotated in 10 players.