The winner of last month's French Open, in joint third place on six-under- par 210, was still disappointed to finish four shots behind Swedish leader, Sofia Gronberg Whitmore.
"I've never hit the ball better, but I couldn't hole a thing," complained the Surrey-based player. "I tried left hand below right and then the normal method, but nothing worked."
Laura Davies also finished in style, holing a 20-foot eagle putt at the 18th for a 68 - the second best score of the day - as she bounced back from yesterday's disappointing 68.
Davies, on three under, reckoned seven shots was too big a gap to close. "But if I could shoot 63 or 64 you never know," she said.
Gronberg Whitmore, with English husband John as her caddie, has only won once on tour, in the 1989 Rome Classic.
But she made a birdie at the 18th for a 69 and her 10-under 206 earned her a one-shot lead over Spain's Raquel Carriedo.