Rookie pro Ernie Gonzalez, who has survived the cut only twice in 10 tournaments, sank four long birdie putts on the backside to share the opening-round lead with George Burns in the $500,000 Westchester Classic in Harrison, N.Y.

Although he drove erratically on the Westchester Country Club course, hitting only a few fairways, Gonzalez continually rescued himself with his putter to shoot a five-under-par 66 . . .

Ayako Okamoto, a former amateur softball player who took up golf 10 years ago, shot a six-under-par 66 to take an early two-stroke lead in the $400,000 LPGA McDonald's Championship in Malvern, Pa.

Okamoto, a 33-year-old native of Hiroshima, Japan, had six birdies and no bogeys over the 6,283-yard White Manor Country Club course . . .

At Southern Pines, N.C., North Carolina's Page Marsh came from two strokes down on the front nine to defeat teammate Kelly Beck, 1-up, and advance to the final of the 70th annual Women's Southern Amateur Golf Championship. In the other semifinal, Kim Williams of Potomac, Md., rolled to a 4 and 3 victory over Debbora Blank of Edgewood, Ky. The 36-hole championship match will be played today.