STANFORD, Calif. — The Cardinal rule has been broken.

No. 3 Oregon ended the program’s 29-game losing streak here with an authoritative 88-48 victory over No. 11 Stanford on Sunday at Maples Pavilion.

The Ducks (23-1, 12-0) picked up where they left off from Friday’s 105-82 mauling of California to extend the nation’s longest active winning streak to 16 and end the Cardinal’s 22-game home winning streak.

Sabrina Ionescu finished with 27 points, nine rebounds and eight assists to lead Oregon to its first win at Maples Pavilion since March 5, 1987.

“No, I did not,” Ionescu said when asked if she expected such a dominant performance. “I know that we’re capable of it, and if we were able to stop them defensively and get them out of their rhythm we’d be able to score however we wanted offensively. We have so many threats on the offensive end, inside and outside.

“But I never thought we’d win by 40.”

  

This was the most lopsided loss legendary coach Tara VanDerveer has suffered in her 33 seasons at Stanford.

“We’re used to looking up at the scoreboard with the numbers reversed,” VanDerveer said. “We’ve had a lot of great games in this building and this was one of our worst.”

Ruthy Hebard, who had a quiet night in Berkeley due to foul trouble, added 18 points and eight rebounds. The junior forward also helped keep Stanford star Alanna Smith (six points, four rebounds) in check on the other end.

Stanford was held to 31.7 percent shooting from the field, including 5-for-22 (22.7 percent) on 3-pointers.

“There was a business-like attitude about them today,” Oregon coach Kelly Graves said of his team. “In our shoot-around (on Saturday) we did absolutely nothing. I was actually playing center on the scout team, that’s how slow we were moving. But we were mentally challenging them on today’s game plan, and they just locked in and did it.

“I think they’re starting to believe that we can be a good defensive team as well.”

Oregon went 12-for-16 (75 percent) behind the arc and limited Stanford to five made 3-pointers.

Erin Boley, who was 4-for-4 on 3-pointers, opened the third quarter with a deep ball to make the score 47-20. DiJonai Carrington finally scored for Stanford to end Oregon’s 18-0 run.

Ionescu buried a 3-pointer and made two more baskets to extend the lead to 30 points (64-34).

The defending Pac-12 champions continued to pour it on as true freshman Taylor Chavez and Boley opened the fourth quarter with 3-pointers to double up Stanford on the scoreboard, 72-36, with 8:41 remaining.

Chavez hit another 3-pointer and Lydia Giomi scored to in the final minutes to put the visitors ahead by 40 points.

“Threes are always better than twos or ones,” said Ionescu, who finished 3-for-4 from distance. “I think we’re moving the ball really well and getting shooters open in spots where they need to be. I think we’re playing exactly how we want to play.”

There was an audible gasp from the crowd of 5,250 as Ionescu put the ball through the net at the buzzer to cap a 15-0 run by the Ducks to end the first half.

Oregon led 44-20 at the intermission after shooting 57.1 percent from the field, 66.7 percent from 3-point distance and out-rebounded Stanford 22-9.

Chavez began the decisive spurt with a basket. Ionescu hit a 3-pointer and made two more shots in the final minute to finish the first half with 17 points.

“I’m not super shocked,” Chavez said of blowing out Stanford. “Of course it’s exciting to know you just beat a really good team by 40 points. I think we prepared well and we did a good job executing."

After giving up the first four points of the game, Oregon went on a 14-0 run capped with a floater in the lane by Ionsecu.

The rout was on and the Ducks’ reign as the new bully on the Pac-12 block continues with a three-game lead on the Cardinal (19-4, 9-3) in the standings after the lone meeting between the teams during the regular season.

“This was a must-win for them in terms of maybe competing for the regular-season championship,” Graves said. “We knew we were going to get their absolute best. We also knew that if we could win it really puts some separation between us and some other teams.

“Yeah, we’ll take 12-0, it’s nice.”