Al-Farouq Aminu had 13 points and 10 rebounds for the Demon Deacons (16-5, 6-3 Atlantic Coast Conference), who improved to 4-0 in overtime games this season.
"I just thought it was a hard-fought ACC game," Wake Forest coach Dino Gaudio said. "We're very fortunate to win. I just thought Virginia's kids played really, really hard. I thought our kids played very hard. Coin toss, anyone could have won that basketball game."
Virginia (14-7, 5-3) was led by Sylven Landesberg's 28 points. Mike Scott was the only other Virginia player to score in double figures with 10 points - none in the second half.
Wake Forest, which outscored Virginia 9-6 in the overtime, moved into third place in the ACC behind Duke and Maryland.
The Demon Deacons shot 48 percent from the field, holding Virginia to 34 percent. Wake Forest out-rebounded Virginia by 12.
No. 10 Duke 66, Boston College 63: The Blue Devils didn't make as many free throws as they usually do. They just made the ones they needed most.
Jon Scheyer and Nolan Smith scored 21 points apiece, each hitting two foul shots in the last 26 seconds after Duke nearly squandered a 10-point halftime lead, and the Blue Devils held on to beat the host Eagles.
Duke (19-4, 7-2) missed five straight free throws in the middle of the game and two more in the final minute, helping BC cut the deficit to 64-63 on Reggie Jackson's long, high-arcing 3-pointer with 16 seconds left. Scheyer was fouled after he received the inbounds pass, then made both free throws to force BC (12-11, 3-6) to try another 3 for the tie.
But Jackson couldn't get a clear look at the basket and passed off to Joe Trapani, who was momentarily open. Seven-foot-1 Brian Zoubek ran out to put a hand in front of the 6-8 Trapani and made him put the ball on the ground before sending a long 3-point attempt off the front of the rim at the buzzer.
"I saw Trapani wide open. It's the last thing you want to see when you've got a three-point lead," Zoubek said. "He made one dribble, a pump fake and shot it off balance."
Virginia Tech 70, Clemson 59: Malcolm Delaney tied the Virginia Tech single-game record for free throws by scoring 20 of his 30 points from the line, and the Hokies used a huge advantage at the stripe to beat the Tigers.
Delaney, a Towson Catholic alum, the ACC's leading scorer coming into the game (19.8 points) and an 85 percent free-throw shooter, was 20-for-23 from the line to equal the mark set by Dorenzo Hudson against Seton Hall earlier this season and Terry Penn against The Citadel in 1957.
The Hokies (18-4, 5-3) made 38 of 46 foul shots, season highs in both categories. Clemson went 14-for-21 from the line.
Virginia Tech, 12-0 at home this season, trailed 37-36 with 15:40 remaining, but the Hokies went on a 15-4 run to take control of the game. Delaney and Jeff Allen scored five points each in that run, and the Tigers got no closer than six the rest of the game.
Tanner Smith, Jerai Grant and David Potter each scored 11 for the Tigers (16-7, 4-5), who shot a season-worst 30.6 percent (19-for-62) from the field.
The Yellow Jackets (17-6, 5-4) improved to 12-1 at home, and they have won four of six in the ACC. Georgia Tech struggled to hold off the last-place Wolfpack, however, despite leading by 16 points with 5:01 remaining.
Switching to a full-court press late in the game, N.C. State (14-10, 2-7) frustrated Georgia Tech into committing several turnovers and possession-arrow miscues before Julius Mays stole D'Andre Bell's backcourt pass and hit a layup to make it 70-69 with 2:09 remaining.
After Dennis Horner's two free throws cut the lead to 73-71, the Yellow Jackets again failed to make an accurate inbounds pass from the baseline, and N.C. State had a chance to tie or win the game.
But Javier Gonzalez missed a jumper, and Mays' straightaway 3-point attempt bounced off the front of the rim at the buzzer.
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