Inbee Park, Brittany Lang, Ai Miyazato and Jodi Ewart Shadoff all shot 5-under 67 to share the lead after the first round at the Kia Classic at Aviara Golf Club.
Park's 67 tied the lowest score of her career at Aviara Golf Club. It was Miyazoto's third round in her last 58 that she shot 67.
World. No. 1 Lydia Ko is a shot back, coming off a runner-up at the JTBC Founders Cup. Ko is tied with Jane Park and Mi Jung Hur at 4 under.
Lang holed out her second shot for eagle. She's coming into the event after a T-9 last week, which was he best round of the season.