Playing in the final group on the last day of the championship for the third time in four years, Yang squandered a three-stroke lead and settled for a 1-over 71 and second at 273.
Third-round leader Amy Yang struggled in the middle of her round and then pulled within one by going eagle-birdie at Nos. 16 and 17. But she bogeyed the 18th and fell a stroke short.
”With all those four wins this year, I got a lot of confidence coming into this tournament,” Chun said. ”And that’s why I could enjoy every moment of the tournament.”
The win was Chun’s fifth of the year after three in Korea and one in Japan. She credited her experience in four LPGA Tour events earlier this season for her success in the other events and preparing her for the rigors of the U.S. Open.
”Everything I faced and I did here was completely new,” Chun said. ”So all I did was enjoy the new stuff … I enjoyed it and had a lot of fun. Even though I’m Korean, here American fans supported me a lot and they gave a lot of claps. That has put me in the great rhythm of play, and I enjoyed that tournament rhythm.”