Shin is looking for the fourth victory of her LPGA Tour rookie season.
GUADALAJARA, Mexico (AP) -- Jiyai Shin has shot a 6-under 66 for the second-round lead at the Lorena Ochoa Invitational.
The South Korean was three strokes ahead of Americans Michelle Wie (66) and Paula Creamer (69). Song-Hee Kim, the first-round leader, was four back after a 72.
The 21-year-old Shin, a three-time winner this season and the money leader, has already won the rookie of the year award and leads Ochoa in the player of the year race.
Ochoa was seven strokes off the lead after a 69.