Croatia Open Umag 2005
Guillermo Coria won the title, beating Carlos Moya 6–2 4–6 6–2 in the final.
Main draw 32 players
- 2🇦🇷Guillermo CoriaFinal · Champion
- 3🇪🇸Tommy RobredoQuarterfinals · Lost to Filippo Volandri
- 4🇪🇸David FerrerQuarterfinals · Lost to Carlos Moya
- 5🇨🇿Jiri NovakSemifinals · Lost to Carlos Moya
- 6🇪🇸Carlos MoyaFinal · Lost to Guillermo Coria
- 7🇪🇸Juan Carlos FerreroQuarterfinals · Lost to Guillermo Coria
- 8🇮🇹Filippo VolandriSemifinals · Lost to Guillermo Coria
- 9🇪🇸Alberto Martin#364Round of 32 · Lost to Lukas Dlouhy
- 🇨🇿Lukas DlouhyQuarterfinals · Lost to Jiri Novak
- Q🇪🇸Albert PortasRound of 16 · Lost to Jiri Novak
- 🇪🇸Felix MantillaRound of 16 · Lost to Guillermo Coria
- 🇪🇸Fernando VicenteRound of 16 · Lost to David Ferrer
- 🇪🇸Guillermo Garcia LopezRound of 16 · Lost to Filippo Volandri
- Q🇷🇸Ilija BozoljacRound of 16 · Lost to Lukas Dlouhy
- 🇷🇸Janko TipsarevicRound of 16 · Lost to Tommy Robredo
- 🇧🇪Kristof VliegenRound of 16 · Lost to Carlos Moya
- 🇷🇸Novak Djokovic#12Round of 16 · Lost to Juan Carlos Ferrero
- LL🇬🇧Alan MackinRound of 32 · Lost to Felix Mantilla
- 🇪🇸Albert MontanesRound of 32 · Lost to Jiri Novak
- 🇪🇸Alex CalatravaRound of 32 · Lost to Novak Djokovic
- 🇨🇿Bohdan UlihrachRound of 32 · Lost to Carlos Moya
- 🇧🇪Dick NormanRound of 32 · Lost to Janko Tipsarevic
- 🇮🇹Francesco AldiRound of 32 · Lost to Ilija Bozoljac
- WC🇧🇷Gustavo KuertenRound of 32 · Lost to Tommy Robredo
- 🇫🇮Jarkko NieminenRound of 32 · Lost to Juan Carlos Ferrero
- 🇨🇿Jiri VanekRound of 32 · Lost to Albert Portas
- WC🇭🇷Marin Cilic#97Round of 32 · Lost to Kristof Vliegen
- 🇪🇸Oscar HernandezRound of 32 · Lost to Guillermo Garcia Lopez
- 🇮🇹Potito StaraceRound of 32 · Lost to David Ferrer
- WC🇭🇷Sasa TuksarRound of 32 · Lost to Filippo Volandri
- Q🇷🇴Victor IonitaRound of 32 · Lost to Fernando Vicente
- Q🇭🇷Zeljko KrajanRound of 32 · Lost to Guillermo Coria