Midori Yoneyama birdied her first three holes en route to a equaling a course record 8-under 64 and took a two-stroke lead over teenager Ai Miyazato and Hiroko Yamaguchi after the third round of the Suntory Ladies on Saturday.
Yoneyama, 28, rolled in seven birdies, an eagle and had one bogey on the par-4 6th to take the lead on 9-under 207 at the Japan Memorial Golf Club.