Chella Choi made more appearances in the Women's PGA Championship than in the U.S. Women's Open, the oldest of the LPGA Tour's five major championships.
Women's PGA Championship 12 U.S. Women's Open 11 The U.S. Women's Open, one of nine national golf championships conducted by the United States Golf Association (USGA), is the oldest of the LPGA Tour's five major championships, which includes the ANA Inspiration, Women's PGA Championship, Women's British Open, and The Evian Championship. 
