STANFORD, Calif. (AP) -- After seeing limited duty the first three games, Cameron Colvin stepped in for one of Oregon's leading receivers and had a career day.
Dennis Dixon threw a career-high four touchdowns and rushed for another score, and the No. 13 Ducks scored 34 straight points and shut out Stanford in the second half of a 55-31 victory Saturday night.
With Brian Paysinger out with a leg injury, Colvin became Dixon's favorite target. The senior receiver caught a career-high eight passes for 136 yards and a touchdown.
"It felt good," Colvin said. "We already miss Brian but I had to be prepared to make plays."
Jeremiah Johnson scored the go-ahead touchdown midway through the third quarter and Jonathan Stewart, who rushed for 160 yards on 19 carries, also scored as the Ducks (4-0, 1-0 Pac-10) started with four wins for the second straight season.
Dixon, who was 27-for-36 for 367 yards, hit tight end Ed Dickson along the sideline for a 33-yard scoring toss early in the second half that made it 31-31. He also threw a pair of TD passes to Jaison Williams, who caught seven passes for 113 yards.
"It started opening up in the second half," Dixon said. "We started to stretch it out and find the open guy. I knew someone would step up and (Colvin) did that."
Oregon, the Pac-10 leader in scoring and total offense, was held to 48 yards during the second quarter, when they allowed 28 points to Stanford. The Ducks recovered nicely in the second half and finished with 589 yards.
"Coach said it was up to each of us," Colvin said. "We made the adjustments and executed them. We calmed ourselves down and played the way we can."
Anthony Kimble rushed for 115 of his career-high 119 yards in the first half, as Stanford (1-2, 0-2) lost for the 15th time in the last 18 games. T.C. Ostrander threw for 262 yards and a pair of touchdowns.
"We gave a lot in that second quarter," Kimble said. "But the big thing was getting behind early like that. We had a response in the first half. We didn't do it in the second half."
The Ducks, who entered the game third nationally in turnover margin, turned the ball over more in one quarter than their previous three games combined. The three fumbles in the second quarter resulted in three Stanford touchdowns.
"We had a lot of turnovers and that's what hurt us last year," Dixon said. "We kept reminding ourselves we couldn't let that happen again."
Dixon's errant pitch was recovered by Pannel Egboh, which led to Kimble's 60-yard TD romp down the middle of the field. Stanford linebacker Clinton Snyder, who was questionable before the game, caused and recovered a fumble that led to Kimble's 3-yard scoring run.
Chike Amajoyi recovered another fumble, that one leading to Ostrander's 12-yard touchdown pass to Mark Bradford for the go-ahead score.
"We showed what we could do," Ostrander said. "We played hard but great teams make plays in the end. We need to develop that killer instinct and learn to execute better in the second half."
Matt Everson hit a short field goal just before halftime, bringing Oregon within 31-24 heading into intermission. Everson later kicked a field goal of 33 yards in the fourth quarter.
"We had to get a gut check at halftime," Oregon coach Mike Bellotti said. "We turned the ball over and Stanford took advantage. They moved the ball. In the second half we played inspired. I'm pleased with the way we came back and maintained our poise."
The Ducks scored on their first play from scrimmage, and then scored again three minutes later. Oregon has scored first in all four of its games.
Colvin's touchdown catch was his first in nearly two years. Running a post pattern, he was wide open as Dixon faked a handoff out of the shotgun and hit him in stride for a 71-yard scoring strike 15 seconds into the game.
Oregon needed six plays to score on its next possession. Penalties hurt Stanford, and the Ducks took over on the Cardinal 36. Stewart went the final 10 yards to make it 14-0 with 11:26 remaining in the opening period.
Andiel Brown's 64-yard punt return set up Dixon's 4-yard jaunt into the end zone late in the first quarter to make it 21-3.
Derek Belch had put the Cardinal on the board with a 39-yard field goal.