EUGENE, Ore. (AP) - A barrage of 3-pointers late in the second half Saturday helped Oregon end its losing streak and keep alive its NCAA tournament hopes.

Led by Tajuan Porter, the Ducks (13-8, 4-5) drained seven 3-pointers in the second half and five in the final seven minutes to pull away from Oregon State for the 79-63 win on Saturday.

Porter scored 23 points, was 8-for-13 from the field overall and 5 of 8 three-pointers. He scored 10 points during a late 19-4 run by Oregon that turned a 57-56 lead into a comfortable 76-60 margin with 2:27 to play.

Bryce Taylor added 17 points for the Ducks, who snapped a four-game losing streak. Maarty Leunen also scored 12 for Oregon, which won the 328th game between the two in-state rivals.

The Civil War series has been contested more times than any other rivalry in Division I.

"Yeah, it was a rivalry game," Porter said. "But we just had to come out and get our rhythm back. (Now we) get out on the road and try to win more games so we can back in the upper half of the Pac-10 Conference."

The Ducks, who returned four starters from last season's NCAA regional quarterfinal team, have struggled to close out games this season. In their last three losses, they have either given up the lead in the final minutes, or gone into overtime.

Taylor said he hopes Saturday's strong finish was a sign of things to come.

"This is a step in the right direction, but it gets even tougher," Taylor said. "We need to continue to get better. We expected to be doing better, but at the same time there's still enough games left for us to turn it around. Teams are losing. Anything can happen."

Freshman guard Calvin Haynes had a career-high 17 points for the Beavers (6-15, 0-9), who lost their 11th straight game overall and 15th straight at McArthur Court.

Calvin Hampton added 10 points.

"We felt we could win all the time," Haynes said. "We came into the game, knowing in our minds that we could win this game. There was no doubt that we (could). It was just mistakes."

Oregon State, which never led after losing a 6-3 advantage, kept it close until a 7-1 run that began midway through the second half nearly tied the game.

With 8:16 to play, Roeland Schaftenaar went to the foul line for the Beavers with his team trailing 57-55.

The sophomore forward made one and missed the other and Leunen recorded a three-point play at the other end to spark the Ducks' game-changing run. Porter made two of his 3-pointers during that stretch, both coming amid a run of four-straight 3-pointers by Oregon.

"Tajuan stepped up and hit those tough shots that were those backbreaker shots that he's known for at this point," Taylor said. "That was pretty much the turning point for us."

The Ducks, who lead the Pac-10 in scoring at 80.4 points per game, shot 53 percent from the field and made half of their 20 3-point attempts.

Oregon State, last in the conference in scoring average, made 44 percent from the field. They missed five of their last six shots.

(Copyright 2008 by The Associated Press. All Rights Reserved.)