De Roey in Women's NSW Open driving seat

At 15-under par, Belgium's Manon De Roey is setting a blistering pace after 54 holes of the Women's NSW Open. Soo Jin Lee leads the home charge at four-under.

Manon De Roey will take a five-shot lead into the final round of the Women's NSW Open after a chip-in birdie at the final hole gave the Belgian a six-under 66 in the third round on Saturday.

De Roey is 14-under the card for the last 36 holes - 15-under overall - and setting a blistering pace the field is struggling to keep up with.

Her 64 on Friday remains the best round of the week at the Dubbo Golf Club and the 29-year-old, who has never won on the Ladies European Tour, was delighted to have backed up that effort, although she felt there was still room for improvement.

"It was about eight out of 10," she said when asked to assess her day-three play.

"I was in the trees a lot today and had to chip out a few times but I managed to get up and down a lot so I was happy with that."

De Roey will start Sunday's final round five ahead of Sweden's Julia Engstrom, who carded a 68, and six clear of another Swede, Camilla Lennarth, who is at nine-under overall after a 70.

Two players - Slovenia's Katja Pogacar and India's Diksha Dagar - are at eight-under.

Of De Roey's nearest challengers, Engstrom also marked her performance highly, despite faltering late in what could have been a spectacular round.

The 19-year-old was six-under for the day and 12-under for the tournament when she stood on the 17th tee but back-to-back bogeys to finish her round took the edge off an otherwise superb effort.

"I got a little bad stretch at the end there with two bogeys but apart from that I played really good," she said.

"Without the last two holes it could have been a 10 out of 10 but overall I'm very happy with the day."

Sydney's Soo Jin Lee is the best of the Australian contingent at four-under and sharing 10th while another Sydneysider, Grace Kim, is the leading amateur at three-under and tied for 12th.