2003 Idea Prokom Open – Men's Singles
was the defending champion but did not compete that year.
Guillermo Coria won in the final 7-5, 6-1 against David Ferrer.Seeds
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
- Juan Carlos Ferrero '
- Carlos Moyá '
- Guillermo Coria
- David Nalbandian '
- Filippo Volandri '
- David Sánchez '
- Dominik Hrbatý '
- Olivier Mutis
Draw