Australia's Su Oh has continued her improved form to earn a final-day title shot at the LPGA Tour tournament in Galloway, New Jersey.
When play was halted for darkness on Saturday, Oh was two strokes off the lead held by Celine Herbin of France and South Korea's Sei Young Kim with two holes left to play in her third round.
After a slow start to the year, Oh has gathered momentum since April and was tied fourth in the recent Volvik Championship before featuring prominently in the US Women's Open then slipping to tied 17th.
She mixed an eagles and four birdies with two bogeys in her 16 holes on Saturday.
A six-time LPGA Tour winner, Kim birdied seven of her last 10 holes on Saturday to get to 10 under with three holes still to play. Play had been held up for three hopurs due to lightning strikes.
Herbin shot a second straight five-under 66.
The Frenchwoman left her job as a biochemical engineer at age 27 to become a professional golfer.
"I don't care if you miss 10 cuts if you win the 11th," said Herbin.
"The missed cut doesn't mean too much. What means more is the work you do every day."