Sun Young Yoo carded a seven-under 65 Wednesday to take a one-stroke lead after the first round of the Blue Bay LPGA tournament.
Yoo had seven birdies and hit 12 of 14 fairways in a bogey-free round at Jian Lake Blue Bay Golf Club. Xiang Sui of China had a 66 to hold second spot, one clear of five players at 5 under, including American Lizette Salas.
"Swing-wise, I kept the same thing. I just tried to have fun out there, and actually I had a lot of fun today," Yoo said.
Sui fell behind by two strokes with a bogey on the 15th hole, but was able to regain a stroke on the leader with birdies on her last two.
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No. 1-ranked Sung Hyun Park had 68 and was in a share of ninth at 4 under.
Defending champion Minjee Lee had six birdies, but she struggled to find consistency as she hit five bogeys to finish the round at 71.
Jessica Korda rebounded after a quadruple-bogey on the par-five third hole, hitting six birdies to finish at 1 under.