Ji joined the LPGA Tour in
2007 and recorded two top-10 finishes in just four events played, including runner-up at the
Hana Bank-KOLON Championship. She made her first appearance in a
major championship at the
2007 Women's British Open and finished in 5th place. In
2008, Ji claimed her first LPGA win at the
Wegmans LPGA, with a come-from-behind, two-stroke victory over
Norwegian star
Suzann Pettersen. In
2009, she made a birdie on the 72nd hole of the
U.S. Women's Open to win by one stroke. As with the 2008 Wegmans, this was a come-from-behind victory. Trailing
Cristie Kerr, Ji overcame a double bogey on the 10th and birdied the 13th, 14th and 18th holes. In 2012, Ji finished tied for second in the
LPGA Championship. She had been leading the tournament going into the final round. Ji retired following the 2025 season. ==Controversy==