Estoril Open 2004
Juan Ignacio Chela won the title, beating Marat Safin 6–7(2) 6–3 6–3 in the final.
Main draw 32 players
- 1🇩🇪Rainer SchuettlerRound of 32 · Lost to Victor Hanescu
- 2🇨🇱Nicolas MassuRound of 32 · Lost to Richard Gasquet
- 3🇦🇷Agustin CalleriRound of 32 · Lost to Jiri Vanek
- 4🇪🇸Tommy RobredoQuarterfinals · Lost to Marat Safin
- 5🇦🇷Juan Ignacio ChelaFinal · Champion
- 6🇧🇾Max MirnyiRound of 16 · Lost to Irakli Labadze
- 7🇦🇷Gaston GaudioRound of 32 · Lost to Florian Mayer
- 8🇷🇺Marat SafinFinal · Lost to Juan Ignacio Chela
- Q🇩🇪Florian MayerSemifinals · Lost to Juan Ignacio Chela
- 🇬🇪Irakli LabadzeSemifinals · Lost to Marat Safin
- 🇫🇷Olivier PatienceQuarterfinals · Lost to Juan Ignacio Chela
- 🇪🇸Rafael NadalQuarterfinals · Lost to Irakli Labadze
- 🇷🇴Victor HanescuQuarterfinals · Lost to Florian Mayer
- WC🇵🇹Diogo RochaRound of 16 · Lost to Juan Ignacio Chela
- Q🇨🇿Jiri VanekRound of 16 · Lost to Olivier Patience
- 🇦🇷Mariano ZabaletaRound of 16 · Lost to Tommy Robredo
- 🇧🇪Olivier RochusRound of 16 · Lost to Victor Hanescu
- 🇨🇿Radek StepanekRound of 16 · Lost to Florian Mayer
- 🇫🇷Richard GasquetRound of 16 · Lost to Rafael Nadal
- 🇫🇷Thierry AscioneRound of 16 · Lost to Marat Safin
- 🇫🇷Antony DupuisRound of 32 · Lost to Thierry Ascione
- Q🇭🇺Attila SavoltRound of 32 · Lost to Irakli Labadze
- 🇨🇿Bohdan UlihrachRound of 32 · Lost to Max Mirnyi
- 🇫🇷Cyril SaulnierRound of 32 · Lost to Marat Safin
- 🇭🇷Goran IvanisevicRound of 32 · Lost to Rafael Nadal
- 🇫🇷Gregory CarrazRound of 32 · Lost to Olivier Rochus
- WC🇦🇷Guillermo CanasRound of 32 · Lost to Juan Ignacio Chela
- 🇫🇷Julien BoutterRound of 32 · Lost to Olivier Patience
- WC🇵🇹Leonardo TavaresRound of 32 · Lost to Diogo Rocha
- 🇷🇺Nikolay DavydenkoRound of 32 · Lost to Radek Stepanek
- Q🇬🇷Vasilis MazarakisRound of 32 · Lost to Mariano Zabaleta
- 🇧🇪Xavier MalisseRound of 32 · Lost to Tommy Robredo