STANFORD, Calif. (AP) -- The school that has produced so many great quarterbacks, from Jim Plunkett to John Elway, may have discovered another one sitting on its bench.

Joe Borchard came off the sideline to throw five touchdown passes, including a Pac-10 record 98-yarder to Troy Walters, as Stanford held off No. 18 UCLA 42-32 Saturday.

Walters, who also caught scoring passes of 30 and 18 yards, had nine receptions for 278 yards -- a Stanford record for receiving yardage in one game, and the third-highest total in Pac-10 history.

"He's probably the leading receiver in the history of our conference," said UCLA coach Bob Toledo, who coached with Walters' father at Texas A&M in the early 1990s. "He's a little guy, but it's like a dance -- you wouldn't ask him to go on the floor, but he's got the best moves."

Borchard, who was 15-of-19 for 324 yards after relieving the injured Todd Husak in the second quarter, also threw scoring passes of 13 and 8 yards to DeRonnie Pitts and scrambled 56 yards to help interrupt a late UCLA rally.

"My job as a backup is to be ready. I saw Todd on the ground and I knew it was time to get warmed up. I thought I'd go in and run the ball," said Borchard, a right fielder for the Stanford baseball team. "I'm still a backup, my job is still just to be ready when called upon, but I'm glad to get the opportunity to win."

Kerry Carter added a 5-yard scoring run for the Cardinal (3-1).

Lovell Houston returned a kickoff 95 yards for a touchdown for UCLA (2-2), the first kick returned for a score by the Bruins in 19 years. DeShaun Foster had scoring runs of 7 and 1 yards, and quarterback Drew Bennett had a 4-yard scoring run. Chris Griffith added a 32-yard field goal.

The Cardinal is 3-0 in conference play for the first time since 1971, when the league was the Pac-8 and Stanford's nickname was the Indians, a name changed in 1972.

UCLA, playing its conference opener, had its streak of 15 straight Pac-10 victories snapped. The Bruins had not lost a league game since their 1997 opener at Washington State.

Last week, UCLA overcame the loss of its starting quarterback to defeat Fresno State. Cory Paus was knocked out of that game with bruised ribs early in the second quarter, and Bennett came in to lead the Bruins to victory.

The scenario was eerily similar Saturday, but this time it was UCLA that was burned by a reserve quarterback. Husak was knocked out with bruised ribs early in the second quarter, and did not return to the game.

"I couldn't be more happy than if it was me making the plays, but it was tough to watch on the sidelines," Husak said. "Two guys sandwiched me, they pounded me pretty good. I might have been able to hand it off, but I couldn't throw."

The victory completed a weird opening month for Stanford, which began with a 69-17 loss at Texas but rebounded with conference wins over Washington State (54-17) and No. 19 Arizona (50-22) before facing the Bruins.

Bennett was 19-of-31 for 207 yards and Foster rushed 19 times for 100 yards. Wide receiver Danny Farmer returned for UCLA after missing the game against Fresno State with a sprained left ankle, but did not make a catch.

"The offense got going after a while, but you can't start that slow against a team like that," Bennett said.

Carter opened the scoring midway through the first quarter, completing a 95-yard drive. UCLA got a field goal, but Stanford responded with a two-play drive consisting of a 50-yard juggling catch by Walters and his 30-yard scoring reception.

Borchard added his 8-yard scoring pass to Pitts with 50 seconds left in the second quarter to give Stanford a 21-3 halftime lead.

A UCLA punt had pinned Stanford on its 2 early in the third period when Borchard stepped into his own end zone and threw a bomb to the streaking Walters to give the Cardinal a 28-3 lead.

But Houston, a redshirt freshman touching the ball for the first time in his college career, went untouched up the middle of the field with the ensuing kickoff. Jojo Townsell was the previous Bruins player to score on a kickoff return, going 100 yards against California in 1980.

UCLA pulled within 28-17 on Foster's 7-yard scoring run, before Walters caught his third touchdown pass to make it 35-17 at the end of the third quarter.

The Bruins scored twice, on touchdown runs by Foster and Bennett, to pull to 35-32. Stanford was facing a third-and-5 from its own 15 with six minutes left when Borchard got the Cardinal out of trouble with his long scramble. He hit Pitts with a 13-yard scoring pass several plays later.