EUGENE, Ore. (AP) - Kellen Clemens threw for 425 yards and four touchdowns Saturday and No. 20 Oregon beat Washington 45-21, decisively defeating the northwest rival Huskies for the second straight year.

Clemens completed 36 passes, an Autzen Stadium record, with no interceptions as the Ducks handed Washington its 11th consecutive loss against a Pac-10 conference opponent.

Washington (1-5, 0-3) was coming off a bye week after losing 21-17 to UCLA.

The Ducks (6-1, 1-1) defeated Arizona State 31-17 in Tempe last week, a victory that moved Oregon up five spots in the rankings. Oregon's lone loss this season came against top-ranked USC.

Demetrius Williams had five catches for 92 yards, including a pair of Clemens' scoring passes.

Isaiah Stanback completed 13-of-26 passes for 111 yards and a pair of touchdowns for Washington. He was intercepted once.

While the Huskies jumped out to an early lead on Stanback's 26-yard scoring pass to Anthony Russo, Oregon had the next three TDs.

Clemens hit Demetrius Williams with a 1-yard pass, then Jaison Williams from 8 yards out. Oregon made it 21-7 when Demetrius Williams pulled down another pass from Clemens, stumbling into the end zone for a 30-yard reception with two Washington defenders trying to pull him down.

Terrence Whitehead caught an 11-yard scoring pass from Clemens to open the second half, making it 28-7. That pass moved Clemens past Joey Harrington into third on Oregon's career list with 60 touchdown passes.

Matt Evenson added a 30-yard field goal before freshman Jonathan Stewart's 17-yard scoring run made it 38-7.

The Huskies showed some life in the fourth quarter.

Stanback found Robert Lewis with a 5-yard touchdown pass with 10:08 to go, and Ty Eriks ran in a 1-yard score some five minutes later to make it 38-21.

The Ducks responded with Brian Paysinger's 5-yard TD run in the final minutes, and Oregon finished with 570 yards in total offense.

Clemens' completions broke the Autzen record of 33, shared by Paul Pinegar and Ty Detmer.

Game Notes

Today’s crowd of 58,267 marked Oregon’s 40th consecutive sellout at Autzen Stadium. It was also the fourth-largest crowd at Autzen Stadium.

Kellen Clemens’ 36 pass completions today (36-of-48) set an Autzen Stadium record for completions. He bettered the previous mark of 33 by Paul Pinegar of Fresno State (2005) and Ty Detmer of Brigham Young (1990).

With four touchdown passes today, quarterback Kellen Clemens passed Joey Harrington (1998-2001/59 TD) to move to third all-time on the UO touchdown list 60.

Devan Long’s 2.5 sacks today increased his career total to 24.5 and moved to third all-time on the UO sacks list, surpassing Matt LaBounty (1998-91/23.5). Long also moved into a tie for fifth in career tackles for loss with 40.0. He matched Reggie Jordan (40.0/1993-96).

Oregon running back Terrence Whitehead’s 59 receiving yards today brought his career total to 1,022, making him the third player in school history to accumulate 1,000 career yards rushing and receiving (joining Bobby Moore and Sean Burwell).

Oregon’s 45 points represented the most the Ducks have scored against Washington since a 58-0 Oregon win in 1973.

The Ducks, now bowl-eligible, are 6-1 for the first time since the 2002 season.

Cameron Colvin’s 63 receiving yards is a career-best, surpassing his previous high of 55 yards (vs. Houston and Fresno State this season).

Demetrius Williams has a touchdown reception in seven of his last eight games dating back to last season.

Washington’s second half scoring of 9:52 was the longest in school history and tied for most plays (19).

UW sophomore tight end Robert Lewis recorded his first receiving touchdowns.