Doug Tewell, who birdied his first six holes Saturday on his way to the lead, continued that level of play at the Riviera Country Club course today, shooting an eight-under-par 63 to win the $450,000 Los Angeles Open by seven strokes over Clarence Rose.

Tewell, 36, who hadn't won a PGA event since capturing two in 1980, began the final round with a one-stroke lead after carding a third-round 66. Today, he succeeded by carding seven birdies through 13 holes to go 13 under and take a six-stroke lead. He breezed in bogey-free, parring the 14th through 17th before getting a birdie on the 18th hole for a 270 four-day total.

"I'm still trying to count the birdies," he said after finishing a round that was a stroke off Larry Mize's course record set last year. "I hate to admit it, but I didn't think it was going to happen. I woke up twice last night and told my wife I was too scared to win it."

Rose, who turned pro in 1981 and has yet to win a Tour event, shot a 68 and finished second with 277. Willie Wood (70) was another stroke back.