She is one of 12 foreign winners of the U.S. Women's Amateur in its 115-year history, and one of 11 golfers to have won the title on their first attempt.

[3] Hattori lead Japan to four consecutive top-5 finishes at the IGF World Amateur Team Championships Espirito Santo Trophy, the country's best ever performances in the bi-annual competition.

[4] In 1987, she won the individual title and led Japan to a team victory in the Queen Sirikit Cup, a prestigious annual competition between Asian nations; other former individual winners of the cup include Hiromi Kobayashi and LPGA members to be Yani Tseng, Mi Hyun Kim, Hee-Won Han and Jeong Jang.

[5][6] Among her achievements was finishing in the top ten in 38 of 40 events in which she competed during her four years at Texas, including three individual top-ten finishes at the NCAA Women's Golf Championship (tied for 1st at the end of regulation in 1989; lost in playoff).

In her first season as a professional, Hattori recorded 11 top-10 finishes and placed 8th on the money list on her way to being named the 1992 Japan LPGA Rookie of the Year.