In - Kyung Lee misses tournament - winning birdie at Sunday 's opening major . South Korea 's 20 - foot putt shoots out for a bogey to force a playoff . Yoo Sun - young easily wins Sunday 's playoff to claim her first major title . World No . 1 After sinking the putt , she covered her ears with her hands and looked skyward in despair before going back to the 18th tee for the play-off . Yani Tseng , of China , finishes one stroke behind leaders .
In - Kyung Lee misses tournament - winning birdie at Sunday 's opening major . South Korea 's 20 - foot putt shoots out for a bogey to force a playoff . Yoo Sun - young easily wins Sunday 's playoff to claim her first major title . World No . 1 Yani Tseng , of China , finishes one stroke behind leaders .