# 2004 Swedish Open – Singles

Mariano Zabaleta was the defending champion, and defended his title defeating Gastón Gaudio 6–1, 4–6, 7–6$^{(7–4)}$ in the final.

## Seeds

* Carlos Moyá (withdrew because of a shoulder injury)
* Gastón Gaudio (final)
* Nicolás Massú (first round)
* Juan Ignacio Chela (quarterfinals)
* Tommy Robredo (second round)
* Fernando González (semifinals)
* Jonas Björkman (first round)
* Mariano Zabaleta (champion)
* Mikhail Youzhny (first 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 |
| 8 | Mariano Zabaleta | 6 | 6 | | | | | |
| 6 | Fernando González | 1 | 4 | | | | | |
| 6 | Fernando González | 1 | 4 | 8 | Mariano Zabaleta | 6 | 4 | 7$^7$ |
| | | | | 2 | Gastón Gaudio | 1 | 6 | 6$^4$ |
| | Robin Söderling | 4 | 2 | 2 | Gastón Gaudio | 1 | 6 | 6$^4$ |
| 2 | Gastón Gaudio | 6 | 6 | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 9 | M Youzhny | 5 | 3 | | | | | | | | | | | | | | |
| | A Martín | 7 | 6 | | | A Martín | 5 | 6 | 6 | | | | | | | | |
| | F Volandri | 4 | 7$^7$ | 6 | | F Volandri | 7 | 1 | 4 | | | | | | | | |
| | G Cañas | 6 | 6$^1$ | 4 | | | | | | | A Martín | 1 | 2 | | | | |
| Q | M Hellström | 6 | 0 | 0 | | | | | | 8 | M Zabaleta | 6 | 6 | | | | |
| | I Labadze | 4 | 6 | 6 | | I Labadze | 4 | 6 | 3 | | | | | | | | |
| | J Johansson | 4 | 3 | | 8 | M Zabaleta | 6 | 1 | 6 | | | | | | | | |
| 8 | M Zabaleta | 6 | 6 | | | | | | | | | | | 8 | M Zabaleta | 6 | 6 |
| 3 | N Massú | 6 | 3 | 2 | | | | | | | | | | 6 | F González | 1 | 4 |
| WC | J Mónaco | 4 | 6 | 6 | WC | J Mónaco | 5 | 6 | 6 | | | | | | | | |
| | K Vliegen | 6 | 6 | | | K Vliegen | 7 | 4 | 1 | | | | | | | | |
| | A Di Pasquale | 4 | 2 | | | | | | | WC | J Mónaco | 4 | 4 | | | | |
| | J Nieminen | 6 | 6 | | | | | | | 6 | F González | 6 | 6 | | | | |
| WC | E Eleskovic | 0 | 2 | | | J Nieminen | 6$^3$ | 1 | | | | | | | | | |
| | L Horna | 3 | 2 | | 6 | F González | 7$^7$ | 6 | | | | | | | | | |
| 6 | F González | 6 | 6 | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 5 | T Robredo | 4 | 7 | 6 | | | | | | | | | | | | | | |
| | A Calleri | 6 | 5 | 4 | 5 | T Robredo | 0 | 6 | 3 | | | | | | | | | |
| Q | B Pašanski | 6$^4$ | 2 | | | R Söderling | 6 | 4 | 6 | | | | | | | | | |
| | R Söderling | 7$^7$ | 6 | | | | | | | | R Söderling | 6 | 6$^5$ | 6 | | | | |
| | F Verdasco | 6 | 6 | | | | | | | 4 | JI Chela | 3 | 7$^7$ | 2 | | | | |
| WC | T Johansson | 1 | 4 | | | F Verdasco | 4 | 5 | | | | | | | | | | |
| | M López | 4 | 0 | | 4 | JI Chela | 6 | 7 | | | | | | | | | | |
| 4 | JI Chela | 6 | 6 | | | | | | | | | | | | | R Söderling | 4 | 2 |
| 7 | J Björkman | 2 | 2 | | | | | | | | | | | | 2 | G Gaudio | 6 | 6 |
| Q | S Ventura | 6 | 6 | | Q | S Ventura | 1 | 2 | | | | | | | | | | |
| | R Nadal | 4 | 6 | 6 | | R Nadal | 6 | 6 | | | | | | | | | | |
| LL | J Vaněk | 6 | 4 | 3 | | | | | | | R Nadal | 2 | 3 | | | | | |
| | O Patience | 6 | 4 | 7$^7$ | | | | | | 2 | G Gaudio | 6 | 6 | | | | | |
| Q | T Gabashvili | 3 | 6 | 6$^1$ | | O Patience | 6 | 3 | 2 | | | | | | | | | |
| | N Davydenko | 3 | 1 | | 2 | G Gaudio | 4 | 6 | 6 | | | | | | | | | |
| 2 | G Gaudio | 6 | 6 | | | | | | | | | | | | | | | |