Delray Beach Open 2003
Jan Michael Gambill won the title, beating Mardy Fish 6–0 7–6(5) in the final.
Main draw 32 players
- 1🇺🇸Andy RoddickRound of 32 · Lost to Mardy Fish
- 2🇦🇷Guillermo CoriaRound of 32 · Lost to Sargis Sargsian
- 3🇨🇱Marcelo RiosSemifinals · Lost to Mardy Fish
- 4🇺🇸Jan Michael GambillFinal · Champion
- 5🇫🇷Arnaud ClementRound of 32 · Lost to Michel Kratochvil
- 6🇳🇱Raemon SluiterRound of 32 · Lost to Irakli Labadze
- 7🇦🇹Stefan KoubekRound of 32 · Lost to Robert Kendrick
- 8🇺🇸Vincent SpadeaRound of 16 · Lost to Flavio Saretta
- 🇺🇸Mardy FishFinal · Lost to Jan Michael Gambill
- Q🇺🇸Robert KendrickSemifinals · Lost to Jan Michael Gambill
- 🇪🇸Alberto Martin#364Quarterfinals · Lost to Mardy Fish
- 🇧🇷Flavio SarettaQuarterfinals · Lost to Jan Michael Gambill
- 🇰🇷Hyung Taik LeeQuarterfinals · Lost to Marcelo Rios
- 🇧🇾Vladimir VoltchkovQuarterfinals · Lost to Robert Kendrick
- 🇧🇷Fernando MeligeniRound of 16 · Lost to Mardy Fish
- 🇬🇪Irakli LabadzeRound of 16 · Lost to Alberto Martin
- 🇲🇨Jean Rene LisnardRound of 16 · Lost to Robert Kendrick
- WC🇺🇸Justin GimelstobRound of 16 · Lost to Jan Michael Gambill
- 🇳🇱Martin VerkerkRound of 16 · Lost to Marcelo Rios
- 🇨🇭Michel KratochvilRound of 16 · Lost to Hyung Taik Lee
- 🇦🇲Sargis SargsianRound of 16 · Lost to Vladimir Voltchkov
- LL🇷🇺Alex Bogomolov JrRound of 32 · Lost to Justin Gimelstob
- WC🇺🇸Alex KimRound of 32 · Lost to Vladimir Voltchkov
- 🇧🇷Andre SaRound of 32 · Lost to Hyung Taik Lee
- 🇭🇺Attila SavoltRound of 32 · Lost to Fernando Meligeni
- 🇺🇸Brian VahalyRound of 32 · Lost to Alberto Martin
- 🇺🇸Jeff MorrisonRound of 32 · Lost to Marcelo Rios
- 🇩🇪Lars BurgsmullerRound of 32 · Lost to Jean Rene Lisnard
- Q🇫🇷Michael LlodraRound of 32 · Lost to Vincent Spadea
- 🇩🇪Nicolas KieferRound of 32 · Lost to Jan Michael Gambill
- Q🇺🇸Paul GoldsteinRound of 32 · Lost to Flavio Saretta
- Q🇧🇷Ricardo MelloRound of 32 · Lost to Martin Verkerk