Taylor Dent won in the final 6–3, 7–6(7–5) against Juan Carlos Ferrero.
Seeds
Juan Carlos Ferrero (final) Andy Roddick (withdrew because of a hamstring injury) Carlos Moyá (quarterfinals) Paradorn Srichaphan (quarterfinals) Jarkko Nieminen (semifinals) Ivan Ljubičić (semifinals) Fabrice Santoro (first round) Taylor Dent (champion)
Draw
Finals
Top half
Bottom half
References 2003 Thailand Open Draw 2003 Thailand Open Qualifying Draw