GREENSBORO, North Carolina (Ticker) -- Freshman J.J. Redick helped stave off Brent Darby and Ohio State.
Redick pumped in all 20 of his points in the second half to withstand a huge effort from Darby as No. 3 Duke remained unbeaten with a 91-76 victory over Ohio State in the ACC-Big Ten Challenge.
Duke (4-0) never trailed in the second half, although Darby's career-high 35 points almost brought back the Buckeyes from a 26-point deficit. But Ohio State (1-2) saw three players foul out, thwarting its comeback.
"I'm really proud of our kids," Duke coach Mike Krzyzewski said. "Ohio State's a really good team. Darby, of course, had one of those fantastic performances."
Duke held a 75-57 lead before Darby scored 10 straight points to cut the deficit to eight. That merely set the stage for Redick.
The shooting guard drained a contested jumper to restore a 10-point lead and added another long 3-pointer for an 82-70 advantage with 2 1/2 minutes left. Redick nailed five 3-pointers in Saturday's win over UCLA.
"Down the stretch, the last four minutes, I thought we played sensational basketball," Krzyzewski said. "J.J. hits a 3 and we made just about all our free throws."
"I wanted to get hot in the second half," Redick said. "Chris found me and it was all good."
Daniel Ewing scored eight points in an 11-0 run that gave Duke the lead for good at 36-28 with 2:57 left in the first half. Ewing capped the spurt with a layup off a perfect feed from Chris Duhon.
Freshman Shelden Williams dunked for a 41-33 advantage at halftime and Redick had a pair of 3-pointers in a 9-0 spurt that opened the second half. The Blue Devils used a 20-3 run in just over six minutes for a commanding 62-36 bulge.
"These guys are a high-octane offense," Ohio State coach Jim O'Brien said. "They can go on blitzes. They are very good at stretching the defense and going by you on the dribble."
Ewing finished with 18 points and Duhon added 10 and 13 assists for Duke, which is 4-0 in the four-year history of the event. The Blue Devils are the only team that has played four games at neutral sites.
"I thought Ewing was great, he played offense and defense," Krzyzewski said. "I think that was his best game overall, just playing the way he did."
The Blue Devils also received a pair of inspired efforts by freshmen other than Redick. Sean Dockery scored 10 points and Williams added nine.
Redick and Ewing led a parade to the foul line for Duke as the duo combined to make 12-of-14 attempts. The Blue Devils shot 77 percent (27-of-35) at the free-throw line.
Darby made 9-of-16 shots and scored 15 points in the first half for Ohio State. His 3-pointer with just under seven minutes to go gave the Buckeyes a 24-20 lead.
Darby and Sean Connolly each nailed four 3-pointers, but Connolly fouled out with 16 points. Zach Williams and Velimir Radinovic were also disqualified.
The Buckeyes played their third straight game without injured players Shun Jenkins and Brandon Fuss-Cheatham. Jenkins has a broken finger and Fuss-Cheatham is still recovering from knee surgery.
The game pitted the winners of last season's ACC tournament and Big Ten tournament.