Argentina Open 2004
Guillermo Coria won the title, beating Carlos Moya 6–4 6–1 in the final.
Main draw 32 players
- 1🇦🇷Guillermo CoriaFinal · Champion
- 2🇪🇸Carlos MoyaFinal · Lost to Guillermo Coria
- 3🇨🇱Nicolas MassuQuarterfinals · Lost to Richard Gasquet
- 4🇧🇷Gustavo KuertenRound of 32 · Lost to David Ferrer
- 5🇦🇷Agustin CalleriRound of 16 · Lost to Richard Gasquet
- 6🇦🇷Mariano ZabaletaQuarterfinals · Lost to Carlos Moya
- 7🇦🇷Gaston GaudioRound of 32 · Lost to Jose Acasuso
- 8🇦🇷Juan Ignacio ChelaRound of 16 · Lost to Juan Monaco
- 🇦🇷Jose AcasusoSemifinals · Lost to Carlos Moya
- 🇫🇷Richard GasquetSemifinals · Lost to Guillermo Coria
- 🇪🇸David FerrerQuarterfinals · Lost to Jose Acasuso
- WC🇦🇷Juan MonacoQuarterfinals · Lost to Guillermo Coria
- 🇪🇸David SanchezRound of 16 · Lost to Carlos Moya
- 🇮🇹Filippo VolandriRound of 16 · Lost to Nicolas Massu
- 🇧🇷Flavio SarettaRound of 16 · Lost to David Ferrer
- WC🇦🇷Franco SquillariRound of 16 · Lost to Guillermo Coria
- Q🇫🇷Olivier PatienceRound of 16 · Lost to Jose Acasuso
- 🇪🇸Oscar HernandezRound of 16 · Lost to Mariano Zabaleta
- 🇪🇸Albert MontanesRound of 32 · Lost to Nicolas Massu
- 🇪🇸Albert PortasRound of 32 · Lost to Olivier Patience
- Q🇦🇷Diego MoyanoRound of 32 · Lost to Oscar Hernandez
- 🇪🇸Fernando VerdascoRound of 32 · Lost to Richard Gasquet
- 🇪🇸Galo BlancoRound of 32 · Lost to Agustin Calleri
- Q🇪🇨Giovanni LapenttiRound of 32 · Lost to Juan Ignacio Chela
- WC🇦🇷Guillermo CanasRound of 32 · Lost to Filippo Volandri
- 🇮🇱Harel LevyRound of 32 · Lost to Carlos Moya
- 🇲🇨Jean Rene LisnardRound of 32 · Lost to Mariano Zabaleta
- 🇵🇪Luis HornaRound of 32 · Lost to Guillermo Coria
- Q🇪🇸Marc LopezRound of 32 · Lost to Franco Squillari
- 🇪🇨Nicolas LapenttiRound of 32 · Lost to Juan Monaco
- 🇪🇸Ruben Ramirez HidalgoRound of 32 · Lost to David Sanchez
- 🇩🇪Tomas BehrendRound of 32 · Lost to Flavio Saretta