AFP, Lancaster :Chun In-Gee, a 20-year-old South Korean in only her eighth LPGA event, birdied three of the last four holes Sunday to win the 70th US Women’s Open by one stroke.World number 20 Chun, the leading money winner on the South Korean tour, fired a final round four-under par 66 to win a back-nine shootout at Lancaster Country Club for her first major title after 15th-ranked compatriot Amy Yang took a bogey on the final hole.Chun birdied the 15th to seize the lead and the 16th and 17th to stay on top but she made bogey at 18 to open the door for Yang, who eagled 16 and birdied 17 but missed her chance with a bogey at 18.
