SYLVANIA, Ohio (AP) Lydia Ko shot a 5-under 66 in windy conditions Friday for a share of the Marathon Classic lead with Hyo Joo Kim.
The top-ranked Ko, the 2014 tournament winner, had six birdies and one bogey at Highland Meadows to match Kim at 8-under 134. Kim, tied for the first-round lead with Mirim Lee and Haru Nomura, had a 68.
Ko won in consecutive weeks in Southern California this year, the second the major ANA Inspiration. The 19-year-old New Zealander tied for third last week in the U.S. Women's Open in California.
Kim won the season-opening event in the Bahamas for her third career title.
Alison Lee and Ha Na Jang were a stroke back. Alison Lee birdied the last three holes for a 66. Jang shot 67. She has two victories this season.