CORVALLIS — Oregon State has faced three teams ranked in the top 10 this season. None made the Beavers defense look as foolish as the Oregon offense did Saturday en route to a dominating 65-38 victory at Reser Stadium.

CORVALLIS — Oregon State has faced three teams ranked in the top 10 this season. None made the Beavers defense look as foolish as the Oregon offense did Saturday en route to a dominating 65-38 victory at Reser Stadium.

The numbers were just plain silly.

The Beavers allowed 694 yards of total offense, the most they've surrendered this season, and gave up 385 yards rushing — the most since allowing 460 against Arizona in 1991.

The Ducks had three touchdowns of at least 45 yards.

"I think they (the Ducks) are as good as anybody we've played," Oregon State coach Mike Riley said.

Oregon scored on six straight possessions in the first half and its 65 points are the most ever scored against the Beavers — the previous high being 63 on three separate occasions.

All this came against an Oregon State defense that ranked second in the conference entering the contest.

"Coming in we had a good game plan," Oregon State's senior defensive end Slade Norris said. "Our coaches did a good job preparing us. The responsibility goes to us as players. We didn't make the plays we needed to make, and we didn't tackle.

"That offense is hard in itself. There are so many options."

Oregon established its spread-option running game early and averaged 7.5 yards per carry. When the Ducks weren't gashing the Beavers up front, Oregon quarterback Jeremiah Masoli was making big plays in the passing game.

It was the first time the Beavers had faced a mobile quarterback in Oregon's spread attack. Oregon started Brady Leaf in the 2006 Civil War and Cody Kempt and Justin Roper played last season in the wake of Dennis Dixon's injury.

"He brings that other dimension where he can make things happen in space," Oregon State's senior strong safety Greg Laybourn said of Masoli.

Most importantly for Masoli and the Ducks, they played error free and caused three Oregon State turnovers.

It seemed Oregon State's best hope of stopping the Oregon offense was penalties. The Ducks had 15 for 129 yards.

"I give a lot of credit to the Ducks," Riley said. "I thought they came out and played fast and confidently."

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MOEVAO STRONG: Oregon State's offense kept the Beavers within striking distance, despite a nonexistent running game.

The Beavers gained just 89 yards on the ground with the Pac-10's leading rusher, freshman Jacquizz Rodgers, sidelined with a left shoulder strain.

Carrying the load in his absence was junior quarterback Lyle Moevao. He completed 27 of 51 passes for 374 yards and a career-best five touchdowns.

"I thought he was really good," Riley said of Moevao. "I thought he made a ton of plays, battled like crazy, and basically kept giving us a chance to maybe make a move to get back into the game. I thought it was pretty phenomenal."

Moevao did throw two interceptions and both were returned for touchdowns, including one right before the half that gave the Ducks a 37-10 lead.

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BIG LOSS: Moevao said the loss of Rodgers made a major difference. Rodgers, a candidate for Pac-10 player of the year, rushed for 1,253 yards and 11 touchdowns this season. He injured his shoulder early last week.

"It would have been a lot different (with Jacquizz)," Moevao said.

Oregon State's leading rusher was Rodgers' older brother, James. He gained 56 yards on seven carries. Starting running back Ryan McCants was not a factor most of the afternoon, gaining just 32 yards on 10 carries.

Despite Oregon State averaging only 2.9 yards per carry, Riley refused to comment on the impact of Jacquizz Rodgers' absence.

"I thought Oregon did a good job of stopping us," Riley said. "I think you saw Ryan and Jeremy (Francis) make some runs. They are very capable."

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QUICK HITS: Saturday's attendance of 46,319 was a Reser Stadium record "¦ The 103 combined points is the most ever in a Civil War game "¦ The loss snaps an eight-game winning streak at home for Oregon State "¦ Oregon's 91-yard drive in the third quarter was the longest drive allowed by the Beavers all season "¦ The 3-yard touchdown reception by freshman tight end Joe Halahuni was his first career reception "¦ It was the final home game for 20 Oregon State seniors, including wide receiver Sammie Stroughter, who moved to No. 3 on the Beavers' all-time career receptions list with 157.

Reach reporter Luke Andrews at 776-4469, or e-mail landrews@mailtribune.com