Halle Open 2004
Roger Federer won the title, beating Mardy Fish 6–0 6–3 in the final.
Main draw 32 players
- 1🇨🇭Roger FedererFinal · Champion
- 2🇩🇪Rainer SchuettlerSemifinals · Lost to Mardy Fish
- 3🇨🇿Jiri NovakSemifinals · Lost to Roger Federer
- 4🇳🇱Martin VerkerkRound of 32 · Lost to Fernando Verdasco
- 5🇷🇺Marat SafinRound of 32 · Lost to Jonas Bjorkman
- 6🇺🇸Mardy FishFinal · Lost to Roger Federer
- 7🇷🇴Andrei PavelRound of 32 · Lost to Alexander Popp
- 8🇪🇸Feliciano LopezRound of 32 · Lost to Tommy Haas
- 🇫🇷Arnaud ClementQuarterfinals · Lost to Roger Federer
- 🇪🇸Fernando VerdascoQuarterfinals · Lost to Mardy Fish
- 🇩🇪Nicolas KieferQuarterfinals · Lost to Rainer Schuettler
- WC🇩🇪Tommy HaasQuarterfinals · Lost to Jiri Novak
- 🇩🇪Alexander PoppRound of 16 · Lost to Arnaud Clement
- Q🇮🇹Andreas SeppiRound of 16 · Lost to Fernando Verdasco
- 🇸🇪Joachim JohanssonRound of 16 · Lost to Rainer Schuettler
- 🇸🇪Jonas BjorkmanRound of 16 · Lost to Nicolas Kiefer
- 🇩🇰Kenneth CarlsenRound of 16 · Lost to Tommy Haas
- LL🇨🇭Marco ChiudinelliRound of 16 · Lost to Jiri Novak
- 🇷🇺Mikhail YouzhnyRound of 16 · Lost to Roger Federer
- 🇦🇲Sargis SargsianRound of 16 · Lost to Mardy Fish
- WC🇩🇪Alexander WaskeRound of 32 · Lost to Arnaud Clement
- WC🇩🇪David PrinosilRound of 32 · Lost to Mardy Fish
- 🇮🇹Filippo VolandriRound of 32 · Lost to Sargis Sargsian
- 🇩🇪Florian MayerRound of 32 · Lost to Mikhail Youzhny
- 🇭🇷Ivan LjubicicRound of 32 · Lost to Jiri Novak
- Q🇨🇿Jan HernychRound of 32 · Lost to Rainer Schuettler
- 🇩🇪Lars BurgsmullerRound of 32 · Lost to Nicolas Kiefer
- Q🇩🇪Michael BerrerRound of 32 · Lost to Kenneth Carlsen
- Q🇨🇭Michel KratochvilRound of 32 · Lost to Marco Chiudinelli
- 🇷🇺Nikolay DavydenkoRound of 32 · Lost to Andreas Seppi
- 🇸🇪Robin SoderlingRound of 32 · Lost to Joachim Johansson
- 🇸🇪Thomas JohanssonRound of 32 · Lost to Roger Federer