In 1983, she won the 15th Amateur Women's Meijin Tournament while she was a junior high school student.
[2][3] That same year, she entered the Japan Shogi Association's Women's Professional Apprentice League under the guidance of shogi professional Toshio Takayanagi [ja].
[5] As of January 2018[update], Shimizu's career record versus male professionals in official games is 29 wins and 156 losses.
[8] In addition to major titles, Shimizu has won 11 other shogi championships.
[9] Note: Tournaments marked with an asterisk (*) are no longer held or currently suspended.