DURHAM, N.C. -- Quinn Cook scored all 17 of his points in the second half, and No. 4 Duke beat Georgia Tech 72-66 on Wednesday night to give coach Mike Krzyzewski his Atlantic Coast Conference-record 423rd league win.
Justise Winslow added 15 points and fellow freshman Jahlil Okafor had 14 for the Blue Devils (19-3, 5-3).
They never trailed in the second half -- but didn't lead by more than seven points -- and held firm in the final minute to win their second straight and give their Hall of Fame coach a second milestone in 11 days.
Krzyzewski, who earned his 1,000th career victory Jan. 25 at St. John's, surpassed former North Carolina coach Dean Smith as the winningest in ACC play.
Chris Bolden scored 16 points and Marcus Georges-Hunt had 14 for the Yellow Jackets (10-12, 1-9). Eight of their ACC losses have come by single digits.
This one also wasn't decided until the final minute. Georgia Tech had the ball down 67-63 after Bolden's jumper in the lane with about 1:15 remaining and Okafor's missed jumper at the other end.
Matt Jones' steal near the sideline set up Cook's two free throws with 33.5 seconds left. Tyus Jones then stole the ball from Demarco Cox and hit Winslow, who was fouled on the break and hit a free throw to put Duke up 70-63 with 23.7 seconds to play.
Tadric Jackson pulled the Yellow Jackets within four with a 3 with 16.8 seconds left, before Cook added two free throws and Winslow blocked Josh Heath's layup with about 5 seconds left.
Jones finished with 11 points for the Blue Devils, whose only double figure lead came late in the first half when Winslow's free throw with 5:13 left made it 33-23.
Cox had 10 points for Georgia Tech, which shot 46 percent but had 14 turnovers that Duke turned into 20 points.
Georgia Tech: The Yellow Jackets fell to 5-34 at Cameron Indoor Stadium and their only victory here since 1997 came in 2004 -- the year they went on to reach the national title game.
Duke: This was Duke's second game after the dismissal of guard Rasheed Sulaimon, and the Blue Devils were left with just eight scholarship players. Six played at least 22 minutes apiece; Marshall Plumlee played eight while Grayson Allen logged just three.
Georgia Tech: Hosts Wake Forest on Saturday.
Duke: Hosts No. 10 Notre Dame on Saturday.
Duke shakes off Georgia Tech, 72-66
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