Tim Simpson continued to make a mockery of par in the Disney Golf Classic yesterday, recording a second straight 64 for a 36-hole total of 128 that was 16 strokes under par and four in front of second-place Paul Azinger.

Simpson, who had seven birdies, an eagle and a bogey on the 7,190-yard Magnolia Course at Lake Buena Vista, Fla., credited a change in his putting style for much of his success.

Simpson's two-day effort tied Jose Maria Olazabal and Peter Persons for the PGA Tour's low for the year for 36 holes. Still, his 64s weren't the lowest of the tournament, because Tom Byrum shot a 63 yesterday.

Azinger had a 65 to go with his first-round 67. Also turning in 65s were Bob Gilder, Kenny Perry, Davis Love III, Gene Sauers and Bob Lohr.

Gilder, Perry, Sauers and Love were five shots behind Simpson, along with Byrum and John Mahaffey (66). Lohr was one shot farther back with a score of 134. . . .

Vicki Goetze of Hull, Ga., and Pat Hurst of San Leandro, Calif., had rounds of par 74 for a 148 total as the United States took a two-stroke lead after the first round of the Women's World Amateur Championships in Christchurch, New Zealand.

The top two scores from the three-member teams count in the team total in the four-day competition for the Espirito Santo Trophy. Karen Noble of Brookside, N.J., the third U.S. player, had a 77 on the 6,162-yard Russley course.