Younes El Aynaoui was the defending champion but did not compete that year.
Roger Federer won in the final 6–1, 6–4 against Jarkko Nieminen. He did not lose a single set in the entire tournament.
Seeds
Roger Federer (champion) Paradorn Srichaphan (second round) Sjeng Schalken (quarterfinals) Rainer Schüttler (quarterfinals) Yevgeny Kafelnikov (semifinals, retired because of a neck injury) Mikhail Youzhny (quarterfinals) Tim Henman (second round) Jarkko Nieminen (final)
Draw
Finals
Top half
Bottom half
External links 2003 BMW Open Singles draw 2003 BMW Open Qualifying draw