2003 AIG Japan Open Tennis Championships
|2003 AIG Japan Open Tennis Championships|
|Date||September 29 – October 5|
|Surface||Hard / outdoors|
|Justin Gimelstob / Nicolas Kiefer|
|Maria Sharapova / Tamarine Tanasugarn|
The 2003 AIG Japan Open Tennis Championships was a tennis tournament played on outdoor hard courts at the Ariake Coliseum in Tokyo in Japan that was part of the International Series Gold of the 2003 ATP Tour and of Tier III of the 2003 WTA Tour. The tournament ran from September 29 through October 5, 2003.
- It was Schüttler's 1st title of the year and the 4th of his career.
- It was Gimelstob's 1st title of the year and the 10th of his career. It was Kiefer's 1st title of the year and the 3rd of his career.
- It was the 1st title of Sharapova's career.
- It was Sharapova's 1st title of the year and the 1st of her career. It was Tanasugarn's 2nd title of the year and the 5th of her career.