Leona Maguire closed in on the top ten at the Gainsbridge LGPA with a fine round of 71 in testing conditions.
The Cavan golfer was one of only four players to shoot an under-par score on Saturday as strong winds and chilly conditions played havoc.
Maguire suffered back-to-back bogeys on the tenth and 11th holes but birdies on the fourth, seventh and three-par 17th left her tied for 17th place, one shot outside the top 10.
Maguire is nine shots behind leader Lydia Ko, who takes a two-stroke lead into Sunday's final round.
Ko is on 11-under after an even-par round, two clear of Danielle Kang who was two-over on Saturday.
Stephanie Meadow dropped to five-over par after three bogeys and a double bogey. She began her third round on even par after an impressive 69 on Friday.
