Stephanie Meadow just squeezed inside the cut mark after a second successive 73 at the ISPS HANDA Women's Australian Open in Adelaide.
The Antrim woman shot a crucial birdie on the 16th to keep herself inside the top 60 on two over par.
Taiwan's Wei-Ling Hsu added a 69 to her opening 65 to finish 10 under par and share top spot on the leaderboard with Sweden's Madelene Sagstrom, who carded five birdies in a second consecutive 67.
Australia's Hannah Green, American Nelly Korda and Japan's Haru Nomura are three shots off the pace on seven under, with England's Bronte Law two strokes further back following a second round of 72.
Women's British Open champion Georgia Hall slumped to a 79, which included a triple-bogey eight on the fifth hole, to miss the halfway cut.