-16 E-H Ji (Kor)
-14 S Pettersen (Nor) -12 H-W Han (Kor), J Jang (Kor) -11 C Kerr (US)
Selected others: -9 L Ochoa (Mex) Level C Matthew
Ji holed seven birdies and two bogeys on her way to a 67
South Korea's Eun-Hee Ji sealed her maiden LPGA Tour win with an impressive two-shot victory over Suzann Pettersen for the Wegmans title in Rochester.
The 22-year-old carded a superb final round of 67, including seven birdies, to finish on 16 under.
Ji had begun the day three shots behind Norway's Pettersen, who was still one shot ahead with four holes to play.
But Pettersen dropped a shot on the 15th and bogeyed the 18th, allowing Ji to snatch victory.
It was yet another disappointment for Pettersen, who missed out on the first major of the season at the Kraft Nabisco Championship in April.
However, the 27-year-old Norwegian said she was in good form before the US Women's Open at the Interlachen Country Club in Minnesota this Thursday.
"It's good to have come out and played well before the US Open," said Pettersen.
Scotland's Catriona Matthew was the highest-placed Briton, tying for 33rd place on two under.