SAN DIEGO — Canada’s Bennedict Mathurin has been through a lot of tough situations for Arizona. It’s no surprise he made his biggest game of the season when the Wildcats needed him most.

The second-class shooting guard from Montreal hit a three-pointer to force extra time and then scored another six points in extra time as top seed Arizona beat ninth seed TCU 85-80 on Sunday night in the second round of the NCAA Tournament.

Mathurin, Pac-12 Player of the Year and second-team AP All-American, finished with 30 points. After Kerr Kriisa missed 3, Mathurin was able to snatch the ball from TCU’s Emanuel Miller in the paint and put it in to give the Wildcats an 83-80 lead with 1:11 remaining.

After getting the rebound and making the basket, Mathurin hit a few punching punches near the baseline.

”My coach blamed me for not getting enough rebounds. I’m quite happy to get the offensive rebound,” said Mathurin, who is the sixth Arizona player to score at least 30 points in an NCAA Tournament game. “So I just went out there and got the rebound, it worked. And I’m emotional.”

Christian Koloko added 28 points and 12 rebounds, including a putback dunk that hit the Horned Frogs with 9 seconds remaining in the OT.

Koloko was 12 of 13 from the field, including five dunks, but the rest of the Wildcats were 19 of 55, including 5 of 27 on 3-pointers.

Mathurin even started slowly. He was 2 of 9 before making six of his last 10.

“Ben is not scared at the moment. He was a special player who had the ability to go to another level when needed. He has that clutch gene,” Arizona coach Tommy Lloyd said. “Honestly I feel really good when he has the ball there. I knew he was going to shoot a 3. Just when he released a 3 to tie it up, it was pretty impressive.”

DUKE 85, MICHIGAN COUNTRY 76

PITTSBURGH — Duke survived a tense finish against Michigan State and extended Mike Krzyzewski’s recent NCAA Tournament record, beating Tom Izzo’s Spartans in a bitter Hall of Fame coach’s final bout.

New star Paolo Banchero scored 19 points and made a green light drive through contact with 2:05 remaining, putting the Blue Devils (30-6) ahead to stay on to Krzyzewski’s career record 1,200 win. Duke reached Sweet 16 for the 26th time under Coach K, who announced last summer that his 42nd season with the Blue Devils would be his last.

That coaching milestone came against his old friend and frequent rival. 75-year-old Krzyzewski _ who has five NCAA titles and a record-tying 12 Final Four appearances _ improved to 13-3 against 67 year old Izzo, who won the 2000 national championship and has reached eight Final Fours.

Krzyzewski will continue his quest for a career title when the second seed Blue Devils travel to San Francisco to play Texas Tech next week in the Western Conference semifinals.

The Blue Devils shot 61% after halftime and 57% for the game, and they needed every part of that production to hold on against seventh-seeded Spartans (23-13) in a stunning showdown to the last minute. Gabe Brown scores 18 points to lead Michigan State.

TEXAS TECH 59, NOTRE DAME 53

SAN DIEGO — Kevin McCullar dunked a decisive dunk with 15 seconds remaining to seal a 10-1 record for third seed Texas Tech, who beat Notre Dame to advance to Sweet 16.

Kevin Obanor scored 15 points and 15 rebounds, and McCullar and Bryson Williams each scored 14 points for Texas Tech (27-9), who reached the third round of 16 in the last four tournaments and was fifth in the school’s history.

Dane Goodwin scores 14 points for 11th seed Notre Dame (24-11), who leads 52-49 with two minutes remaining. But the Fighting Irish scored no field goals in the final three minutes and Texas Tech made eight straight free throws in the final 1:56, including two by Obanor that put the Red Raiders 53-52 with 1:10 remaining.

HOUSTON 68, ILLINOIS 53

PITTSBURGH — Taze Moore scored 21 points, Jamal Shead added 18 and Houston, last season’s Final Four team, advanced to Sweet 16 by beating Illinois, who crashed out on the opening weekend for the second year in a row.

The fifth-seeded Cougars (31-5), who lost two of their best players to injury at the end of the season, will return to Texas for the Southern Conference semifinals, to be held in San Antonio, about three hours’ drive from Houston. They will face Arizona or TCU.

Kyler Edwards added 15 points for Houston.

For Illinois, this was a year of deep disappointment. Fourth seed Fighting Illini (23-10) is determined to go further after being knocked out by Loyola Chicago last year. All-American center Kofi Cockburn did his part, scoring 19 points in 38 minutes.

VILLANOVA 71, OHIO COUNTRY 61

PITTSBURGH — Collin Gillespie scored 20 points, Eric Dixon hit a three-pointer and second seed Villanova parried seventh seed Ohio State.

The Wildcats (28-7) earned their eighth trip to Sweet 16 under Jay Wright after surviving second-half pressure from the Buckeyes (20-12), who cut a 15-point deficit in half before Villanova regained her footing.

The Wildcats will continue their search for a third national title in seven seasons when they face 11th seed Michigan in the Southern Conference semifinals on Thursday night in San Antonio.

Malechi Branham scored 15 of his 23 points in the second half. EJ Liddell added 17 chances in his last game with the Buckeyes before heading to the NBA.

COUNTRY OF IOWA 54, WISCONSIN 49

MILWAUKEE — Gabe Kalscheur scores 22 points and 11th seed Iowa State stunned Wisconsin in the Badgers’ backyard to advance to Sweet 16.

Izaiah Brockington added 10 points as the Cyclones used their formidable defense to hold off Johnny Davis and co in front of a boisterous pro-Wisconsin crowd about 80 miles from Madison’s school campus.

After winning just two games last season, Iowa State (22-12) advanced to Sweet 16 for the first time since 2016 and the sixth time in the school’s history. It will play Miami on Friday in Chicago, a staggering 11-vs-10-seed fight.

Kalscheur hit 10 for 19 from the field. The remainder of the Typhoon combined for 10 field goals.

Davis, Top Ten Player of the Year, led third-seeded Wisconsin (25-8) with 17 points, but Badgers shot a season-low 29.8% from court and turned it around to a season high of 17.

MIAMI 79, AUBURN 61

GREENVILLE, SC — Isaiah Wong scores 21 points, Kameron McGusty scores 20 and 10th seed Miami neutralized second seed Jabari Smith and Walker Kessler of Auburn to reach his first Sweet 16 in six years.

Charlie Moore added 15 points and eight assists as Miami (25-10) advanced to the last 16 for the fourth time overall and the third time in coach Jim Larranaga’s 10 seasons. And the Hurricanes did it against the Auburn front court of the future NBA greats.

Smith’s 6-foot-10 and 7-1 Kessler were projected NBA first-round draft picks if they left the Tigers (28-6), but they were largely ineffective against Miami’s experienced lineup. Smith scores 10 points on 3-of-16 shooting and 15 rebounds. Kessler made no field goals and had two points.

Jaylin Williams and KD Johnson each scored 12 points for Auburn, who lost in the second round for the second time in three tournament appearances under coach Bruce Pearl.

PURDUE 81, TEXAS 71

MILWAUKEE — Jaden Ivey hit a critical three-pointer with 1:01 remaining to finish with 18 points, and Purdue finally got past Texas coach Chris Beard in March.

Trevion Williams scored 22 points to lead the Boilermakers, who capitalized on a big difference on the free-throw line to reach Sweet 16. Purdue made 46 attempts, made 33, while the Longhorns had 7 of 12 free throws.

Toronto center Zach Edey had 11 points and 10 rebounds for Purdue.

The third-seeded Boilermakers (29-7) advance to Friday’s Eastern Conference semifinals in Philadelphia against this year’s seed, 15th seed Saint Peter’s.

Beard had won each of his two previous NCAA Tournament games with Boilermakers coach Matt Painter, who had the better seed each time. He coached Little Rock and Texas Tech through Purdue.

Marcus Carr of Toronto leads sixth-seeded Texas (22-12) with 23 points and Andrew Jones scores 17.