France's Joanna Klatten shot a course record nine under 63 to win the NSW Women's Open at Oatlands on Sunday.
After shooting two under 70 on the opening day of the three-day event, Klatten started the final round five under and saved her absolute best for last, shooting five birdies on the front nine and four on the back, including on the 17th and 18th holes, to take out the $100,000 event.
Other strong finishers included Australia's Nikki Campbell, who finished second with 13 under for the tournament and 17-year-old Western Australian amateur MinJee Lee, who won the amateur title and finished fifth having shot a six under 66 on the final day.
England's Hannah Burke finished third with a course total of 12 under, shooting four-under 68 for each of the three days.
Engish legend Laura Davies, who won the 1987 US Open, had a disappointing end to the tournament ending with an even par 72 to finish well of the pace.
Klatten, who is ranked 158 in the world rankings, said she felt "amazing" after the win and that the course was perfectly suited to her style.
"I knew starting the day I was only three shots behind which is nothing, especially on this course. You can be really aggressive here and the conditions were great, I just felt really in control," Klatten said.
With Klatten, 28, shooting two birdies on the last two holes, she said she felt the pressure but that it was gratifying to know she could hold her nerve at the business end of the first major tournament of the year.
"It's so satisfying to shoot birdies when it matters. I definitely could feel my heart beating a lot faster, you could feel the adrenaline," Klatten said.
"I've only shot nine under once before, when I was 21 and still an amateur. It's the high point of my career so far, it's what I've worked for. "
Sunday's win was Klatten's second professional victory, having taken out the Victorian Open in a play-off in 2012, and agreed that it seems she has a love affair with Australian courses.
"Australia is my love partner, I feel very comfortable here. The courses are great, the people are so friendly and I feel very welcome," Klatten said.
"It was a really unexpected result. There was a big field this tournament so knowing I was able to shoot nine under and break the course record means so much to me, it's just wonderful. "