U.S. Men's Clay Court Championships 2003
Andre Agassi won the title, beating Andy Roddick 3–6 6–3 6–4 in the final.
Main draw 32 players
- 1🇺🇸Andre AgassiFinal · Champion
- 2🇺🇸Andy RoddickFinal · Lost to Andre Agassi
- 3🇺🇸James BlakeQuarterfinals · Lost to Olivier Mutis
- 4🇺🇸Taylor DentRound of 32 · Lost to Jurgen Melzer
- 5🇺🇸Vincent SpadeaRound of 16 · Lost to Fernando Meligeni
- 6🇺🇸Jan Michael GambillRound of 32 · Lost to Luis Horna
- 8🇰🇷Hyung Taik LeeRound of 32 · Lost to Todd Martin
- 🇦🇹Jurgen MelzerSemifinals · Lost to Andre Agassi
- 🇫🇷Olivier MutisSemifinals · Lost to Andy Roddick
- 🇧🇷Fernando MeligeniQuarterfinals · Lost to Andy Roddick
- 🇺🇸Mardy FishQuarterfinals · Lost to Jurgen Melzer
- Q🇧🇷Ricardo MelloQuarterfinals · Lost to Andre Agassi
- 🇭🇺Attila SavoltRound of 16 · Lost to James Blake
- 🇧🇷Flavio SarettaRound of 16 · Lost to Olivier Mutis
- 🇬🇪Irakli LabadzeRound of 16 · Lost to Andre Agassi
- 🇩🇰Kenneth CarlsenRound of 16 · Lost to Jurgen Melzer
- 🇵🇪Luis HornaRound of 16 · Lost to Mardy Fish
- Q🇺🇸Paul GoldsteinRound of 16 · Lost to Andy Roddick
- 🇺🇸Todd MartinRound of 16 · Lost to Ricardo Mello
- 🇩🇪Alexander WaskeRound of 32 · Lost to James Blake
- 🇧🇷Andre SaRound of 32 · Lost to Ricardo Mello
- 🇺🇸Brian VahalyRound of 32 · Lost to Irakli Labadze
- LL🇵🇭Cecil MamiitRound of 32 · Lost to Flavio Saretta
- WC🇺🇸Hugo ArmandoRound of 32 · Lost to Olivier Mutis
- Q🇺🇸Jack BrasingtonRound of 32 · Lost to Vincent Spadea
- WC🇺🇸Jeff MorrisonRound of 32 · Lost to Andy Roddick
- 🇺🇸Justin GimelstobRound of 32 · Lost to Fernando Meligeni
- 🇩🇪Nicolas KieferRound of 32 · Lost to Attila Savolt
- Q🇦🇷Sergio RoitmanRound of 32 · Lost to Mardy Fish
- WC🇺🇸Thomas BlakeRound of 32 · Lost to Kenneth Carlsen
- 🇸🇪Thomas EnqvistRound of 32 · Lost to Paul Goldstein
- 🇭🇷Zeljko KrajanRound of 32 · Lost to Andre Agassi