The long-hitting Aussie set up her round with an eagle on the par-five sixth hole and then made three birdies on the back nine in one of the rounds of her career.
They finally completed the second round of the OHL Classic at Mayakoba, with Rickie Fowler, Patrick Rodgers and Patton Kizzire sharing the lead at 10-under 132.
With a closing 70 at the Blue Bay LPGA event in her native China, Shanshan Feng won for the second straight week, becoming the first player to claim back-to-back LPGA titles this season.