ACC: No. 1 Virginia 75, Louisville 58

Kyle Guy and No. 1 Virginia looked like healthy favorites in their postseason debut, beating Louisville 75-58 on Thursday in the quarterfinals of the Atlantic Coast Conference Tournament in New York.

They will play fourth-seeded Clemson on Friday.

Guy scored 19 points in his speedy return from a sprained left knee and the top-seeded Cavaliers (29-2) weathered a second-half charge.

Devon Hall had 14 points as Virginia methodically dismantled a Louisville team desperate for a big upset to augment its NCAA Tournament credentials. Instead, the ninth-seeded Cardinals (20-13) will sweat out Selection Sunday hoping for an at-large bid.

Virginia opened a 17-point lead late in the first half and was still ahead by 13 before the Cardinals went on an 11-2 spurt to trim the deficit to 56-52 with 8:55 left. But reserve forward Mamadi Diakite scored six consecutive Cavaliers points and Virginia regained control.

No. 5 Duke 88, Notre Dame 70

Marvin Bagley III had 33 points and 17 rebounds, Grayson Allen made his first five 3-pointers and Duke beat Notre Dame in New York.

Allen finished with 23 points and the second-seeded Blue Devils (26-6) advanced to play No. 3 seed Miami or 12th-ranked and sixth-seeded North Carolina in the second semi­final Friday night.

Duke, the defending champion after beating Notre Dame in the title game last year, earned its 100th ACC Tournament victory.

Bonzie Colson had 18 points and nine rebounds for the 10th-seeded Fighting Irish (20-14),

No. 19 Clemson 90, Boston College 82

Gabe DeVoe scored 25 points and Shelton Mitchell had 21 as Clemson beat Boston College to advance to the ACC Tournament semifinals for the first time since 2011.

The fourth-seeded Tigers (23-8) will face top-seeded Virginia on Friday night.

The Eagles’ excellent backcourt of Jerome Robinson (20 points) and Ky Bowman (23 points) combined to shoot 10 for 32 from the field, a day after the pair scored 50 points to carry BC (19-15) to an upset of North Carolina State.

BIG 12: Oklahoma State 82, No. 9 Kansas 68

Malik Newman scored a career-high 30 points, Svi Mykhailiuk added 13 and ninth-ranked Kansas beat Oklahoma State 82-68 to reach the Big 12 semifinals in Kansas City, Mo.

Devonte Graham added 10 points, four rebounds and nine assists for the top-seeded Jayhawks (25-7), who were swept by the Cowboys (19-14) in the regular season but broke through when it mattered.

They advanced to play Kansas State on Friday.

Jeffrey Carroll scored 17 points and Kendall Smith had 14 for the No. 8 seed Cowboys, who can only hope their opening win over Oklahoma solidified their spot in the NCAA Tournament.

No. 14 Texas Tech 73, Texas 69

Keenan Evans scored 25 points and Texas Tech held off Texas for a victory in the Big 12 quarterfinals.

Jarrett Culver added 13 points for the Red Raiders (24-8), who had lost four of their last five in the regular season but appeared to recapture their mojo in Kansas City.

They advanced to play No. 18 West Virginia or Baylor in Friday night’s semifinals.

Jacob Young had a career-high 29 points for the Longhorns (19-14), going 11-of-17 from the field and 6-of-7 from beyond the arc. But he missed an open layup with 36 seconds left that would have gotten the Longhorns within 70-67, and Evans made a free throw at the other end to help seal it.

Kansas State 66, TCU 64

Kansas State’s Barry Brown scored the go-ahead layup with 11.2 seconds left in overtime, and Alex Robinson missed two foul shots for TCU, allowing the Wildcats to escape.

The Horned Frogs, who forced OT on Desmond Bane’s buzzer-beating 3-pointer, had the ball with the game tied at 64 and 34.5 seconds to go. But when Robinson’s pass was deflected out of bounds, a video review showed TCU’s Vladimir Brodziansky touched it last and Kansas State was given the ball. Brown was fouled while converting a layup, but he missed the free throw.

At the other end, Robinson drove down the lane and was fouled by Makol Mawien with 1.3 seconds left. But he missed the first of two free throws, forcing him to miss the second, and the Wildcats corralled the rebound to seal the win.

Mawien finished with 16 points for the fourth-seeded Wildcats (22-10).

PAC-12: No. 15 Arizona 83, Colorado 67

Allonzo Trier scored 22 points, Dusan Ristic had 15 points and 11 rebounds, and Arizona (25-7) beat Colorado in the Pac-12 quarterfinals in Las Vegas.

Arizona will play UCLA in a semifinal Friday.

Colorado (17-15) managed to hang with the Wildcats well into the second half. The Buffaloes suffered a huge blow with about 13 minutes left, when point guard McKinley Wright IV suffered a right ankle injury. Arizona reeled off 14 straight points and the Buffaloes never recovered.

George King had 19 points for Colorado.

UCLA 88, Stanford 77

Aaron Holliday had 34 points, eight assists and seven rebounds, lifting UCLA (21-10) to a win over Stanford in the Pac-12 quarterfinals.

Holliday and Thomas Welsh carried most of the load, leading the Bruins into Friday’s semifinals against Arizona. Welsh had 18 points and 11 rebounds. Holliday made 12 of 25 shots, including 5 of 9 from the 3-point arc.

Stanford (18-15) pulled within four by halftime, but never could make up the ground.

KZ Okpala led the Cardinal with 23 points.