South Korean in sight of victory at Blue Bay LPGA event

Trailing Lee at nine-under are countrywoman Hye-Jin Choi (68 ‌on Saturday) and China's Yu Liu (73).

Defending champion Rio Takeda (67) of Japan, India's Aditi Ashok (70) and South Korea's A Lim Kim (71) are tied for fourth at eight-under.

"A lot of up and down, but ​still finished under par, so really looking forward to tomorrow," said Lee, who is battling through some shoulder pain this week.

"Last night I couldn't sleep without my medication, so hopefully just one more day for tomorrow," she said.

Robyn Choi, the 27-year-old Gold Coast player who's Australia's sole representative in the tournament, had a level-par round to sit on three under for the tournament, tied for 16th place.