GUADALAJARA, Mexico (AP) — Thailand's Pornanong Phatlum took the first-round lead Thursday in the Lorena Ochoa Invitational, birdieing seven of the first 13 holes at Guadalajara Country Club.
The 23-year-old Phatlum, winless in five seasons on the LPGA Tour, dropped a stroke on the par-4 14th hole and finished with a 6-under 66.
Playing for the first time in Guadalajara, Phatlum birdied the first three holes. She added birdies on Nos. 7, 9, 11 and 13, and had only 25 putts.
"My putting was very good," Phatlum said. "I had a complete game today. ... I just want to have fun on the course this week."
Amy Yang was a stroke back, and fellow South Korean players Inbee Park and So Yeon Ryu were two shots back at 68 along with Sweden's Anna Nordqvist.
Yang had six birdies and a bogey.
"I think I did everything so well today, especially putter," Yang said. "I felt really good over the ball every time."
She won the KEB Hanabank Championship last month in South Korea for her first LPGA Tour title.
"It really helped," Yang said. "I had some chance to win before. When I didn't achieve it, I was wondering if I can do it or not. But since the first win, I have a lot of confidence, and now I'm enjoying it more."
The top-ranked Park swept the first three major championships of the season and has three other LPGA Tour wins this season.