CORVALLIS, Oregon (Ticker) -- DeShaun Foster held onto the ball this week, and Oregon State may have fumbled away its season.
Foster carried 31 times for 147 yards and three touchdowns and Cory Paus completed a pair of scoring strikes to Brian Poli-Dixon as 10th-ranked UCLA coasted to a 38-7 win over No. 19 Oregon State in the Pac-10 Conference opener for both schools.
UCLA improved to 4-0 for the first time since 1998, completely dominating a team that handed it a 55-7 loss on its last trip to Corvallis two years ago and followed that with a 44-38 win last season in California.
"They're supposed to be a pretty good football team. They were picked to win it, they were No. 1 in Sports Illustrated, so they've got some players," UCLA coach Bob Toledo said. "But at this point, in this game, I think we were the better football team."
After fumbling four times and losing two of them in last week's win over Ohio State, Foster put himself back in the Heisman Trophy race with a big effort Saturday. He scored on a three-yard run in the first quarter and had TD runs of 17 and one yard in the third.
Defense long has been an Achilles' heel for UCLA, but the Bruins turned in another solid effort behind defensive coordinator Phil Snow. Ken Simonton, a preseason Heisman Trophy hopeful, was held to 26 yards on 13 carries.
The Bruins (4-0, 1-0 Pac-10) have allowed a mere 47 points in four games and will have a week off before hosting Washington. It is the fewest points UCLA has allowed in the first four games of the year since 1980, when it surrendered 28.
"I thought we were going to have a real good defensive team, and I told all of our media back home that this is the best group we've had and that if we stayed healthy we would play very well defensively," Toledo said.
Oregon State (1-2, 0-1) squandered a chance to turn around its season. The Beavers lost to Fresno State to open the season and barely defeated New Mexico State the following week.
Jonathan Smith completed just 11-of-32 passes for 106 yards for the Beavers.
"I think we were on different pages a couple of times," Smith said of his receivers. "I think the pressure got to us a little bit. We were definitelty out of sync. I don't have an exact answer why."
Paus lofted a 38-yard scoring strike up the left sideline to Poli-Dixon on the final play of the first half for a 17-0 cushion.
Defensive fortunes also have changed in Oregon State, where a once sitingy unit now has plenty of holes. The Beavers allowed 21 points in the third quarter and have yielded 104 points in three games.
The Beavers played without strong safety Calvin Carlyle, who will miss the rest of the season with a shoulder injury.
Foster's third-quarter TDs were sandwiched around a 39-yard TD pass from Paus to Poli-Dixon.
Paus completed 12-of-24 passes for 216 yards while Poli-Dixon caught six passes for 107 yards.
The Beavers avoided a shutout on a 63-yad TD run by Steven Jackson in the fourth quarter. Jackson carried seven times for 95 yards.
The Bruins have won 13 of their last 17 games against ranked opponents.