Patty Sheehan rallied with six birdies on the back nine yesterday to repeat as the LPGA's Rochester (N.Y.) International winner. Her 67 for a tournament record 17-under-par 271 at Locust Hill left Amy Alcott, who led by three at the turn, four shots behind in second place. Three-time Rochester champion Nancy Lopez was third.

Sheehan said the turning point came on the 15th hole, when she sank a 1 1/2-foot putt for birdie 2 and Alcott bogeyed after shanking her tee shot far right.

"We were really going head to head until that," Sheehan said. "That's a golfer's worst nightmare."

"All I can tell you is, I ran into a buzz saw today," said Alcott. Sheehan took home $60,000 for her third victory of 1990 and a tour-leading season total of $357,474.

Seniors: Bob Charles shot 67, held off a charging Lee Trevino and repeated as champion of the Digital Classic with 13-under-par 203 for three trips around Nashawtuc Country Club in Concord, Mass. It was the 54-year-old left-hander's first 1990 victory, 14th of his Senior PGA Tour career and paid $52,500.

Trevino, with 66 -- 205, beat 1986-87-88 Digital winner Chi Chi Rodriguez for second by a stroke.

Irish Open: Jose-Maria Olazabal shot 72 -- 282 for a three-stroke victory at Portmarnock worth $98,000.