Argentina Open 2003
Carlos Moya won the title, beating Guillermo Coria 6–3 4–6 6–4 in the final.
Main draw 32 players
- 1🇪🇸Carlos MoyaFinal · Champion
- 2🇦🇷David NalbandianQuarterfinals · Lost to Guillermo Coria
- 3🇨🇱Fernando GonzalezRound of 16 · Lost to Felix Mantilla
- 4🇦🇷Gaston GaudioSemifinals · Lost to Guillermo Coria
- 5🇦🇷Juan Ignacio ChelaQuarterfinals · Lost to Gaston Gaudio
- 6🇧🇷Gustavo KuertenSemifinals · Lost to Carlos Moya
- 7🇪🇨Nicolas LapenttiRound of 16 · Lost to Luis Horna
- 8🇦🇷Guillermo CoriaFinal · Lost to Carlos Moya
- 🇪🇸Felix MantillaQuarterfinals · Lost to Gustavo Kuerten
- 🇵🇪Luis HornaQuarterfinals · Lost to Carlos Moya
- 🇦🇷Agustin CalleriRound of 16 · Lost to Juan Ignacio Chela
- WC🇦🇷Edgardo MassaRound of 16 · Lost to Carlos Moya
- 🇧🇷Fernando MeligeniRound of 16 · Lost to Gaston Gaudio
- 🇧🇷Flavio SarettaRound of 16 · Lost to Gustavo Kuerten
- 🇦🇷Franco SquillariRound of 16 · Lost to David Nalbandian
- 🇦🇷Mariano ZabaletaRound of 16 · Lost to Guillermo Coria
- 🇪🇸Albert MontanesRound of 32 · Lost to Fernando Meligeni
- 🇪🇸Albert PortasRound of 32 · Lost to Felix Mantilla
- 🇪🇸Alberto Martin#364Round of 32 · Lost to Edgardo Massa
- 🇧🇷Andre SaRound of 32 · Lost to Franco Squillari
- Q🇮🇹Andrea GaudenziRound of 32 · Lost to Nicolas Lapentti
- 🇭🇺Attila SavoltRound of 32 · Lost to Mariano Zabaleta
- 🇪🇸David FerrerRound of 32 · Lost to Carlos Moya
- 🇪🇸David SanchezRound of 32 · Lost to Fernando Gonzalez
- Q🇫🇷Eric ProdonRound of 32 · Lost to Luis Horna
- 🇪🇸Fernando VicenteRound of 32 · Lost to David Nalbandian
- Q🇦🇷Gaston EtlisRound of 32 · Lost to Flavio Saretta
- LL🇵🇪Ivan MirandaRound of 32 · Lost to Gustavo Kuerten
- 🇦🇷Jose AcasusoRound of 32 · Lost to Guillermo Coria
- Q🇦🇷Marcelo CharpentierRound of 32 · Lost to Juan Ignacio Chela
- WC🇦🇷Mariano PuertaRound of 32 · Lost to Gaston Gaudio
- 🇨🇱Nicolas MassuRound of 32 · Lost to Agustin Calleri