# 2003 Generali Open – Singles

Àlex Corretja was the defending champion but lost in the second round to Werner Eschauer.
Guillermo Coria won in the final 6–1, 6–4, 6–2 against Nicolás Massú.

## Seeds

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated. All sixteen seeds received a bye to the second round.
* Juan Carlos Ferrero (quarterfinals)
* Guillermo Coria (champion)
* Rainer Schüttler (second round)
* Albert Costa (second round)
* Younes El Aynaoui (third round)
* Mikhail Youzhny (second round)
* Gastón Gaudio (quarterfinals)
* Juan Ignacio Chela (quarterfinals)
* Mariano Zabaleta (semifinals)
* Max Mirnyi (third round)
* Nikolay Davydenko (third round)
* Àlex Corretja (second round)
* Feliciano López (semifinals)
* Sargis Sargsian (third round)
* Flávio Saretta (third round)
* David Sánchez (second round)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| 9 | Mariano Zabaleta | 2 | 1 | | | | | |
| | Nicolás Massú | 6 | 6 | | | | | |
| | Nicolás Massú | 6 | 6 | | Nicolás Massú | 1 | 4 | 2 |
| | | | | 2 | Guillermo Coria | 6 | 6 | 6 |
| 13 | Feliciano López | 1 | 2 | 2 | Guillermo Coria | 6 | 6 | 6 |
| 2 | Guillermo Coria | 6 | 6 | | | | | |

### Top half
#### Section 1

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 1 | J C Ferrero | 7$^7$ | 7$^7$ | | | | | | | | | |
| | A Dupuis | 6 | 6$^5$ | 4 | | F Verdasco | 6$^3$ | 6$^2$ | | | | | | | | | |
| | F Verdasco | 1 | 7$^7$ | 6 | | | | | | 1 | J C Ferrero | 7$^7$ | 6 | | | | |
| | F Squillari | 5 | 6 | 1 | | | | | | 15 | F Saretta | 6$^4$ | 3 | | | | |
| Q | G Etlis | 7 | 4 | 6 | Q | G Etlis | 6$^3$ | 1 | | | | | | | | | |
| | | | | | 15 | F Saretta | 7$^7$ | 6 | | | | | | | | | |
| | | | | | | | | | | | | | | 1 | J C Ferrero | 1 | 4 |
| | | | | | | | | | | | | | | 9 | M Zabaleta | 6 | 6 |
| | | | | | 9 | M Zabaleta | 6 | 7 | | | | | | | | | |
| | V Hănescu | 6 | 6 | | | V Hănescu | 2 | 5 | | | | | | | | | |
| | M Hipfl | 4 | 0 | | | | | | | 9 | M Zabaleta | w/o | | | | | |
| | J Boutter | 3 | 3 | | | | | | | 5 | Y El Aynaoui | | | | | | |
| | M Kratochvil | 6 | 6 | | | M Kratochvil | 7$^7$ | 1 | 6$^3$ | | | | | | | | |
| | | | | | 5 | Y El Aynaoui | 6$^4$ | 6 | 7$^7$ | | | | | | | | |

#### Section 2

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 4 | A Costa | 7$^{11}$ | 5 | 6$^0$ | | | | | | | |
| | N Massú | 6 | 3 | 6 | | N Massú | 6$^9$ | 7 | 7$^7$ | | | | | | | |
| | S Koubek | 4 | 6 | 4 | | | | | | | N Massú | 6 | 6 | | | |
| | A Portas | 6 | 6 | | | | | | | 14 | S Sargsian | 2 | 2 | | | |
| WC | B Ulihrach | 4 | 2 | | | A Portas | 6$^4$ | 1 | | | | | | | | |
| | | | | | 14 | S Sargsian | 7$^7$ | 6 | | | | | | | | |
| | | | | | | | | | | | | | | N Massú | 7 | 6 |
| | | | | | | | | | | | | | | N Lapentti | 5 | 4 |
| | | | | | 11 | N Davydenko | 6 | 6 | | | | | | | | |
| WC | A Peya | 4 | 6 | 7$^8$ | WC | A Peya | 2 | 3 | | | | | | | | |
| | G Blanco | 6 | 3 | 6$^6$ | | | | | | 11 | N Davydenko | 3 | 1 | | | |
| | N Lapentti | 7$^{10}$ | 6 | | | | | | | | N Lapentti | 6 | 6 | | | |
| | W Arthurs | 6$^8$ | 3 | | | N Lapentti | 6 | 6 | | | | | | | | |
| | | | | | 6 | M Youzhny | 3 | 3 | | | | | | | | |

### Bottom half
#### Section 3

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 7 | G Gaudio | 6 | 6 | | | | | | | | | | | |
| | T Behrend | 6 | 3 | 6 | | T Behrend | 4 | 3 | | | | | | | | | | | |
| | Ó Hernández | 4 | 6 | 3 | | | | | | 7 | G Gaudio | 6 | 3 | 6 | | | | | |
| | W Eschauer | 6$^3$ | 6 | 6 | | | | | | | W Eschauer | 4 | 6 | 4 | | | | | |
| | A Waske | 7$^7$ | 1 | 3 | | W Eschauer | 6 | 6 | | | | | | | | | | | |
| | | | | | 12 | À Corretja | 4 | 4 | | | | | | | | | | | |
| | | | | | | | | | | | | | | | 7 | G Gaudio | 2 | 7$^7$ | 5 |
| | | | | | | | | | | | | | | | 13 | F López | 6 | 6$^2$ | 7 |
| | | | | | 13 | F López | 6 | 6 | | | | | | | | | | | |
| Q | R Vik | 3 | 6 | 2 | WC | F Mergea | 3 | 4 | | | | | | | | | | | |
| WC | F Mergea | 6 | 3 | 6 | | | | | | 13 | F López | 3 | 6 | 3 | | | | | |
| WC | I Neumüller | 2 | 2 | | | | | | | | P-H Mathieu | 6 | 3 | 0/r | | | | | |
| | P-H Mathieu | 6 | 6 | | | P-H Mathieu | 6 | 3 | 6 | | | | | | | | | | |
| | | | | | 3 | R Schüttler | 4 | 6 | 3 | | | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | 8 | J I Chela | 6 | 6 | | | | | | | | | |
| | J Melzer | 5 | 2 | Q | F Čermák | 1 | 3 | | | | | | | | | |
| Q | F Čermák | 7 | 6 | | | | | 8 | J I Chela | 6 | 3 | 7$^8$ | | | | |
| | L Horna | 6 | 6 | | | | | 10 | M Mirnyi | 4 | 6 | 6$^6$ | | | | |
| Q | D Köllerer | 3 | 2 | | L Horna | 3 | 2 | | | | | | | | | |
| | | | | 10 | M Mirnyi | 6 | 6 | | | | | | | | | |
| | | | | | | | | | | | | | 8 | J I Chela | 3 | 2 |
| | | | | | | | | | | | | | 2 | G Coria | 6 | 6 |
| | | | | 16 | D Sánchez | 2 | 4 | | | | | | | | | |
| Q | A Seppi | 3 | 4 | | O Mutis | 6 | 6 | | | | | | | | | |
| | O Mutis | 6 | 6 | | | | | | O Mutis | 1 | 0 | | | | | |
| Q | O Gross | 4 | 4 | | | | | 2 | G Coria | 6 | 6 | | | | | |
| | A Vinciguerra | 6 | 6 | | A Vinciguerra | 4 | 3 | | | | | | | | | |
| | | | | 2 | G Coria | 6 | 6 | | | | | | | | | |