Champion Rainer Schüttler Final score 7–6, 6–2 men women | Runner-up Sébastien Grosjean Singles men Doubles men | |
Kenneth Carlsen was the defending champion but lost in the third round to Hyung-Taik Lee.
Rainer Schüttler won in the final 7–6(7–5), 6–2 against Sébastien Grosjean.
Seeds
All sixteen seeds received a bye to the second round.
References
2003 AIG Japan Open Tennis Championships – Men's Singles Wikipedia(Text) CC BY-SA