Nancy Lopez, who started the day tied for the lead with Alice Miller, shot a seven-under-par 65 to score an eight-stroke victory today in the $250,000 LPGA Championship.

Lopez's total of 273 was 15 shots under par and one stroke off the tournament record set last year by Patty Sheehan. Miller shot a 73 today to finish second.

Lopez said a two-stroke penalty she was assessed in Thursday's first round for slow play affected her performance in the second and third rounds.

"I was mad, frustrated and struggling a lot," she said. "I didn't want this tournament getting away from me. I wanted to be motivated in the right way today . . . "

As Lopez prepared to hit her final putt, she laughed and asked, "Does anybody know what time it is?"

Someone in the gallery replied, "Take all the time you want."

It was the second straight victory for Lopez. She won the LPGA tournament in Chatham, N.J., two weeks ago, She did not enter last week's event in Corning, N.Y.

"It was like I was by myself," Lopez said. "I didn't hear anything. It was just that little ball and me. It was a perfect day. I felt loose and calm. I never felt nervous. It was just a lot of fun."

Miller said putting problems prevented her from making a better showing today. "I couldn't make any putts," she said. "That's not like me. I hit 15 greens and I usually make a third of those for birdies."

For all intents and purposes, Lopez won the tournament on the first nine holes as she got four birdies. Miller, on the other hand, had two bogeys and made only one birdie to fall five strokes behind at the halfway point.

Miller said, "I got out of the ball game early and just didn't capitalize. I could have played better, but I'd probably still have lost."

Tied for third at four-under-par 284 were Pat Bradley and Lori Garbacz. In a three-way tie for fifth at 286 were Allison Finney, Cindy Flom and Ayako Okamoto. Sharing eighth at 287 were Chris Johnson and Amy Alcott.