Week 5 of the 2010 college football season is in the books and full-on conference play is up and running in the Pac-10.
The now-No. 3 Oregon Ducks took down the Stanford Cardinal, USC accrued its second consecutive upset loss to Washington, Oregon State improved with a win over Arizona State, and the Washington State Cougars continue to head down the losing path.
Overall, it was a good week for Pac-10 quarterbacks as they face off for conference supremacy.
The following is the fifth installment of a weekly feature power ranking the Pac-10 quarterbacks based soley on their performance in Week 5, minus the bye week teams Arizona and California.
The Arizona State Sun Devils have shown promise in 2010, but mistakes continue to riddle the team with losses, including their 31-28 loss to Oregon State in Week 5.
Steven Threet had his worst game of the season, completing 14 of 29 passes for a 48 percent completion rate, 203 yards, and one touchdown.
Threet also single-handedly lost the second consecutive game for the Sun Devils with his three interceptions against the Beavers, coming off a four-interception game while playing host to the Oregon Ducks.
The UCLA Bruins picked up their third straight win against the Washington State Cougars after starting the season 0-2.
With starting quarterback Kevin Prince out with an injury, backup Richard Brehaut took the reins in Week 5.
Brehaut completed 12 of 23 passes for a 52 percent completion rate, 128 yards, and zero passing touchdowns in the Bruins' 42-28 win.
The backup quarterback also had eight yards on the ground, and one rushing touchdown.
The Trojans ended their 2010 undefeated streak in Week 5 with an upset loss against the Washington Huskies at home.
Matt Barkley hit 14 of his 20 passes for a 70 percent completion rate, and had a season-low 186 passing yards and zero touchdowns.
His lackluster performance aside, Barkley managed to not throw any interceptions, after having two against each Washington State and Minnesota.
The Oregon State Beavers took down the struggling Arizona State Sun Devils with 31-28 win in Week 5 for their conference opener.
Ryan Katz had been struggling through the Beavers' first three games, but came out of his shell against the tough Arizona State defense to put up his best numbers thus far.
Katz completed 19 of 29 passes for a 66 percent completion rate, 260 yards, and two touchdowns. The Beaver quarterback has also yet to throw an interception on the season.
The Washington State Cougars fell short to the UCLA Bruins with a 42-28 loss at the Rose Bowl for their second consecutive conference loss.
While the Cougars are continuing their struggling past, starting quarterback Jeff Tuel has not been getting the recognition he deserves.
Tuel completed 20 of 37 passes for 311 yards against the Bruin defense, while pulling in two passing touchdowns and zero interceptions.
The Cougars seem to have their answer at quarterback, but just can't seem to get over the hump that is their continuing losing seasons.
The Stanford Cardinal fell prey to the then No. 4 Oregon Ducks in Week 5 with a heartbreaking 52-31 loss in Eugene.
Andrew Luck completed 29 of 46 passes for two touchdowns, and a season-high 341 passing yards at Oregon. The Heisman hopeful also added 39 yards on the ground for one rushing touchdown.
The only downside to Luck's performance was pulling in his second consecutive game throwing two interceptions.
The Oregon Ducks took down the mighty No. 9 Stanford Cardinal in Week 5 to vault the team over Boise State to claim the No. 3 spot in the country.
Darron Thomas put up his best performance of the season, completing 20 of 29 passes for a 69 percent completion rate, 238 passing yards, and three touchdowns.
While he threw a season high two interceptions, Thomas also rushed for 117 yards and one touchdown in an impressive win in Autzen Stadium.
The Washington Huskies were able to take down USC in Week 5, for their second consecutive upset over the Trojans.
Star quarterback Jake Locker was coming off a Week 3 loss to Nebraska, in which he was held to a measly 71 passing yards, but things took a turn for the better against the Trojans.
Locker completed 24 of 40 passes for 310 yards and one touchdown, also adding 112 rushing yards on 12 carries in the Huskies' win.