FINAL LEADERBOARD -14 J Rosales (Phi) -13 L-J Yeon (Kor), G Park (Kor), B Morgan (Wal), R Jones (US) -12 K-M Hyun (Kor)

Rosales hit a seven-under-par 65 to finish at 14-under, one shot clear of Lee Jung Yeon and Grace Park, Wales' Becky Morgan and Rosie Jones.

The 25-year-old had seven birdies in her bogey-free final round.

Rosales, who had consecutive birdies at both the sixth and seventh and 13th and 14th holes, had a nervous wait as her rivals completed their rounds.

"I just can't believe it, I'm just so happy," said Rosales.

"I really thought someone would catch me."

Her previous best performance had come last year in Vienna, Ohio, when she lost a four-way play-off.

Third-round leader Aree Song crumbled over the final 18 holes and eventually finished nine strokes off the pace in a share of 23rd place.

South Korea's Kim Mi Hyun was sixth at 12-under..

World number one Annika Sorenstam started the day in a share of third, but she slipped back to a tie for 10th on 10 under after a 71.