2004 AIG Japan Open Tennis Championships – Women's Singles

Maria Sharapova was the defending champion and successfully defender her title, by defeating Mashona Washington 6–0, 6–1 in the final.

2004 AIG Japan Open Tennis Championships – Women's Singles

Maria Sharapova was the defending champion and successfully defender her title, by defeating Mashona Washington 6–0, 6–1 in the final.