Inbee Park and Suzann Pettersen lead at 18 under by four over Ye Na Chung of Korea with 18 year old 'comeback kid' Ariya Jutanugarn one shot further back.
Korea's So Yeon Ryu is alone in 5th position.
Tied for 6th is the leading Australian amateur Minjee Lee who recently won the Victorian Open.
Nikki Campbell is the next best Australian in a share of 12th.
Jutanugarn has recently returned to tournament play following an accident when skylarking last year. She is considered one of the most exciting prospects in Asian golf having recorded five top five finishes in LPGA Tour starts in 2013 before her accident and without LPGA Tour status.