Spanish rookie Carlota Ciganda hit a five-under 67 on Saturday to take a one-shot lead into the final round of the Delloite Ladies Open.
Ciganda, 22, has yet to win a professional title since turning pro in May last year, but is a stroke ahead of Finland's Ursula Wikstrom, who shot a four-under 68 in her second round at Golfclub Broekpolder in the Netherlands.
England's Florentyna Parker - champion at the event in 2010 - is outright third on four-under after she carded an even-par 72.
A group of seven are tied fourth on three-under, including South African Lee-Anne Pace, Swede Carin Koch, Dutchwoman Dewi Claire Schreefel, English pair Henrietta Zuel and Felicity Johnson, and French duo Elena Giraud and Caroline Afonso.
Norway's Line Videl shot the day's lowest round - a six-under 66 - to be tied for 11th spot, alongside Australian Alison Whitaker, South Africa's Stacy Lee Bregman and Italian Veronica Zorzi.