| Singles | |
|---|---|
| 2003 International Raiffeisen Grand Prix | |
| Champion |
|
| Runner-up |
|
| Final score | 6–3, 6–2 |
Nicolás Lapentti was the defending champion but did not compete that year.
Andy Roddick won in the final 6–3, 6–2 against Nikolay Davydenko.
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.