COLLEGE PARK, Maryland (Ticker) -- After waiting a decade, Maryland coach Gary Williams had to endure five more minutes before completing a coveted sweep.
John Gilchrist scored 19 points and grabbed 10 rebounds, while Travis Garrison added 17 and 11 to give Maryland a 99-92 overtime victory over No. 8 Duke in an Atlantic Coast Conference battle.
The Terrapins (15-7, 6-5 ACC) won both regular-season meetings against the Blue Devils for the first time since 1994-1995 and knocked Duke out of a first-place tie with Wake Forest in the conference standings.
"The competitive level for both teams was just incredible," Williams said. "That's college basketball. It's not perfect. It's not supposed to be. At both ends of the court, nobody gives you an inch. We were fortunate to win."
Garrison scored the only basket of overtime when he hit a layup with 2:45 remaining to give Maryland a 93-90 lead. The Terrapins made 9-of-12 free throws, six by Chris McCray, in the extra period.
"It was a tough loss for us," Duke coach Mike Krzyzewski said. "I thought our kids played their hearts out, especially in the second half and overtime. Maryland played really hard and well. It was a disruptive game for us."
Daniel Ewing scored 23 points, including four during an 11-2 run that gave Duke a 73-64 lead midway through the second half. Ewing was one of five Duke players to foul out.
Maryland responded with a 14-2 burst, highlighted by eight straight points by Mike Jones and a three-point play by Nik Caner-Medley, to go on top, 78-75, with 5:42 left.
"We stayed confident that we could do it," Jones said. "With the team we had, nine points doesn't seem too difficult to overcome. I didn't really realize what was going on and that I scored all eight points. I just knew whenever I had a smaller guy on me to take advantage of it."
Gilchrist and Ekene Ibekwe had consecutive three-point plays to give the Terrapins an 88-86 advantage with 39 seconds remaining in regulation.
DeMarcus Nelson scored on a layup from the right baseline for Duke and Maryland missed a pair of jumpers just prior to the buzzer in regulation.
Six Maryland players scored in double figures. McCray made all 10 of his free throws and finished with 17 points, while Jones scored 15 and Ibekwe and Caner-Medley each had 11 for the Terrapins, who improved to 12-1 at home.
"That's one of the things I can do to help my team," McCray said. "I'm a good free-throw shooter. Whether it's a pressure situation or not, I have to step up and make my free throws."
Shelden Williams scored 23 points and grabbed 16 rebounds before he fouled out and J.J. Redick added 21 points for Duke (18-3, 8-3), which has lost three straight to the Terrapins for the first time since 1982.
In all, Duke finished with 31 personal fouls while Maryland had 22. The Terrapins went 29-of-39 from the line and the Blue Devils shot 23-of-30 from the stripe.
Besides Williams and Ewing, Shavlik Randolph, Sean Dockery and Lee Melchionni also fouled out. Duke was outrebounded, 50-41, and failed to record its 100th victory over Maryland.
"We were definitely at a disadvantage missing five of our main players," Redick said. "They just had more overall athleticism than we did in the overtime because they still had their main guys."
"It was a tough game," Ewing said. "I thought our guys fought very hard and gave a winning effort to win this game. Unfortunately for us, we were in a lot more foul trouble than they were."