Halle Open 2003
Roger Federer won the title, beating Nicolas Kiefer 6–1 6–3 in the final.
Main draw 32 players
- 1🇨🇭Roger FedererFinal · Champion
- 2🇩🇪Rainer SchuettlerRound of 16 · Lost to Radek Stepanek
- 3🇨🇿Jiri NovakQuarterfinals · Lost to Mikhail Youzhny
- 4🇷🇺Yevgeny KafelnikovRound of 32 · Lost to Karol Kucera
- 5🇲🇦Younes El AynaouiQuarterfinals · Lost to Roger Federer
- 6🇷🇺Mikhail YouzhnySemifinals · Lost to Roger Federer
- 7🇷🇺Nikolay DavydenkoRound of 32 · Lost to Feliciano Lopez
- 8🇫🇷Arnaud ClementSemifinals · Lost to Nicolas Kiefer
- 🇩🇪Nicolas KieferFinal · Lost to Roger Federer
- 🇸🇰Karol KuceraQuarterfinals · Lost to Arnaud Clement
- 🇨🇿Radek StepanekQuarterfinals · Lost to Nicolas Kiefer
- 🇫🇷Fabrice SantoroRound of 16 · Lost to Karol Kucera
- 🇪🇸Feliciano LopezRound of 16 · Lost to Nicolas Kiefer
- 🇪🇸Fernando VicenteRound of 16 · Lost to Roger Federer
- 🇭🇷Ivan LjubicicRound of 16 · Lost to Arnaud Clement
- 🇸🇪Jonas BjorkmanRound of 16 · Lost to Mikhail Youzhny
- 🇩🇪Lars BurgsmullerRound of 16 · Lost to Younes El Aynaoui
- 🇦🇹Stefan KoubekRound of 16 · Lost to Jiri Novak
- 🇺🇸Brian VahalyRound of 32 · Lost to Fabrice Santoro
- WC🇩🇪Christopher KoderischRound of 32 · Lost to Younes El Aynaoui
- Q🇩🇪David PrinosilRound of 32 · Lost to Ivan Ljubicic
- Q🇨🇦Frederic NiemeyerRound of 32 · Lost to Arnaud Clement
- WC🇩🇪Hendrik DreekmannRound of 32 · Lost to Jiri Novak
- 🇰🇷Hyung Taik LeeRound of 32 · Lost to Fernando Vicente
- Q🇨🇭Jean Claude ScherrerRound of 32 · Lost to Lars Burgsmuller
- 🇩🇰Kenneth CarlsenRound of 32 · Lost to Rainer Schuettler
- WC🇩🇪Maximilian AbelRound of 32 · Lost to Jonas Bjorkman
- 🇫🇷Nicolas EscudeRound of 32 · Lost to Radek Stepanek
- 🇧🇪Olivier RochusRound of 32 · Lost to Nicolas Kiefer
- 🇫🇷Paul Henri MathieuRound of 32 · Lost to Mikhail Youzhny
- 🇦🇲Sargis SargsianRound of 32 · Lost to Roger Federer
- Q🇨🇭Yves AllegroRound of 32 · Lost to Stefan Koubek