So Yeon Ryu carded a seven-under-par 64 to take a one-shot lead at the Kingsmill Championship on Friday.
Ryu, who is on seven-under, is followed by Stacy Lewis, Amy Yang and overnight leader Mika Miyazato, who are all in a tie for second on six-under.
Minjee Lee, Caroline Masson, Amelia Lewis and Jessica Korda are a further shot behind in a tie for fifth.
World number one Lydia Ko remains six strokes adrift of the lead in a tie for 37th, while world number two Inbee Park withdrew after six holes due to her lingering left thumb injury.
Ryu, who registered a 71 in the first round on Thursday, looked in much better form despite starting her round with a bogey at the 10th as she went on to make six birdies on her next eight holes to cap off a superb front nine. The South Korean continued to impress on her back nine as she made two more birdies to surge up the leaderboard and find herself in the lead.
Lewis also enjoyed a lot of success during her round of 65 as she made a trio of birdies on her front nine. She maintained her momentum on her back nine, making consecutive birdies at the sixth and seventh to complete a bogey-free round.
Yang followed her 69 in the first round with a 67, which saw her start with a hat-trick of birdies from the first to third. She made another birdie at the seventh, but recorded her lone bogey of the round at the eighth. Yang had a much quieter back nine as it only consisted of a lone birdie at the 15th, but it was enough to put her within touching distance of Ryu.
Miyazato on the other hand failed to build on her impressive 65 in the first round as she fired a 71 on Friday. The 26-year-old started her round with a birdie at the first before going on to make a duo of bogeys to round off a disappointing front nine. Miyazato only made one birdie on the back nine, but despite her struggles, she still remains in contention.
Meanwhile, Ko regained her touch as she followed up her 73 in the first round with a 68, which began with her making two birdies on the front nine. The world number one started the back nine with a birdie at the 11th before stumbling with a bogey at the 12th. She did atone for her mistake though as she concluded her round with a birdie at the 18th.
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