South Korea's Jee Young Lee fired a seven-under 65 Saturday to seize a one-shot lead after three rounds of the LPGA Championship, the second women's major of the season.
Lee nabbed seven birdies and an eagle on the par-five 15th for a 54-hole total of 12-under 204 at the Bulle Rock course.
"I've been waiting to win a tournament ever since I came to the United States," Lee said. "And to win the major tournament here would be really exciting for me. I'm really looking forward to Sunday."
Sweden's Maria Hjorth was one stroke back after a 65 that saw her vault from a tie for 18th to second on 205.
World No.1 Lorena Ochoa and 10-time major winner Annika Sorenstam were tied for third, two shots adrift on 206.
"It's going to so much fun being in the final group in the last round of a major," Hjorth said. "It's going to be very exciting with both Lorena and Annika right up there."
American Laura Diaz, a two-time LPGA Tour winner was grouped with three others in fifth at 8-under 208, a group that included Australian Lindsey Wright (73).
Lee collected two birdies in her first four holes before a double-bogey at the par-four fifth sent her back to even par for the day.
The 22-year-old bounced back with three more birdies on the front nine.
Her eagle at 15 saw her move within one shot of Hjorth, and a birdie at 16 gave Lee a share of the lead. She took sole possession of the lead with a birdie at the last.
Hjorth, 34, had seven birdies in her bogey-free round.
Ochoa, whose six victories this season include the first major of the year, the Kraft Nabisco in April, had two bogeys and a double-bogey against four birdies in an even-par 72.
She double-bogyed the par-three seventh, but her four birdies included two at par-three holes coming in - the 12th and 17th.
"It was a disappointing start, and my round wasn't as good as the first two days," Ochoa said. "But I'm still in a good position and am looking forward to (Sunday)."