Thursday in Washington, D.C., North Carolina State defeated second-seeded Duke 74-69 in the quarterfinals to obstruct Duke's hopes of winning back-to-back ACC tournament titles.
Due to a double-bye because of their top conference seed, the No. 11 Blue Devils played in their first round game.
It will not be good for the team's ranking in the NCAA tournament as they lost their conference tournament opener, which they had not lost since 2013.
The Blue Devils' early offensive difficulties were foreshadowed by their nine straight field goal misses throughout the contest.
Kyle Filipowski, a sophomore at Duke, finished the game with 28 points and 14 rebounds. In the first half, he spearheaded a 9-0 run, but in the second half, NC State center D.J. Burns Jr.'s defense affected him.
The Wolfpack started off strong, carrying over their winning streak from Tuesday's victory over Louisville into Wednesday's thrilling upset victory over No. 7 seed Syracuse.
They have completely turned around from their previous four-game losing streak, winning three games in a row over the past three days.
NC State went into halftime with a 35-32 advantage thanks to their 5-of-11 3-point shooting performance.
Coming off the bench, NC State's starting guard DJ Horne, who is recovering from an injury, scored 12 points in the opening half.