# 2004 Mercedes Cup – Singles

Guillermo Coria was the defending champion, but did not participate.
Guillermo Cañas won the title, defeating Gastón Gaudio 5–7, 6–2, 6–0, 1–6, 6–3 in the final.

## Seeds

All seeds receive a bye into the second round.
* Rainer Schüttler (second round)
* Gastón Gaudio (final)
* Juan Ignacio Chela (third round)
* Andrei Pavel (third round)
* Jiří Novák (quarterfinals)
* Tommy Robredo (second round)
* Feliciano López (second round)
* Mariano Zabaleta (third round)
* Florian Mayer (second round)
* Mikhail Youzhny (third round)
* David Ferrer (semifinals)
* Albert Costa (quarterfinals)
* Ivo Karlović (third round)
* Rafael Nadal (quarterfinals)
* Nikolay Davydenko (semifinals)
* Tomáš Berdych (third 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

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final | Final | Final | |
| Radek Štěpánek | Radek Štěpánek | 4 | 4 | | | | | | | | | | | | | | |
| Guillermo Cañas | Guillermo Cañas | 6 | 6 | | | | | | | | | | | | | | |
| Guillermo Cañas | Guillermo Cañas | 6 | 6 | | | Guillermo Cañas | 3 | 6 | 6 | | | | | | | | |
| | | | | | 15 | Nikolay Davydenko | 6 | 1 | 2 | | | | | | | | |
| 15 | Nikolay Davydenko | 6 | 6 | | 15 | Nikolay Davydenko | 6 | 1 | 2 | | | | | | | | |
| 12 | Albert Costa | 3 | 4 | | | | | | | | | | | | | | |
| 12 | Albert Costa | 3 | 4 | | | | | | | | Guillermo Cañas | 5 | 6 | 6 | 1 | 6 | |
| | | | | | | | | | | 2 | Gastón Gaudio | 7 | 2 | 0 | 6 | 3 | |
| 11 | David Ferrer | 6 | 6$^3$ | 7 | | | | | | | | | | | | 2 | Gastón Gaudio | 7 | 2 | 0 | 6 | 3 |
| 14 | Rafael Nadal | 3 | 7$^7$ | 5 | | | | | | | | | | | | | |
| 14 | Rafael Nadal | 3 | 7$^7$ | 5 | 11 | David Ferrer | 3 | 7 | 4 | | | | | | | | |
| | | | | | 2 | Gastón Gaudio | 6 | 5 | 6 | | | | | | | | |
| 5 | Jiří Novák | 4 | 3 | | 2 | Gastón Gaudio | 6 | 5 | 6 | | | | | | | | |
| 2 | Gastón Gaudio | 6 | 6 | | | | | | | | | | | | | | |

### Top half
#### Section 1

| 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 |
| | | | | 1 | R Schüttler | 7$^8$ | 3 | 2 | | | | | | | |
| | JP Guzmán | 6$^4$ | 3 | | R Štěpánek | 6$^6$ | 6 | 6 | | | | | | | |
| | R Štěpánek | 7$^7$ | 6 | | | | | | | R Štěpánek | 6 | 7 | | | |
| Q | F Squillari | 6 | 7$^7$ | | | | | | 13 | I Karlović | 2 | 5 | | | |
| | N Almagro | 3 | 6$^1$ | Q | F Squillari | 3 | 6$^0$ | | | | | | | | |
| | | | | 13 | I Karlović | 6 | 7$^7$ | | | | | | | | |
| | | | | | | | | | | | | | R Štěpánek | 4 | 4 |
| | | | | | | | | | | | | | G Cañas | 6 | 6 |
| | | | | 9 | F Mayer | 7$^7$ | 6$^5$ | 4 | | | | | | | |
| | D Norman | 0 | 5 | | G Cañas | 6$^3$ | 7$^7$ | 6 | | | | | | | |
| | G Cañas | 6 | 7 | | | | | | | G Cañas | 6 | 6 | | | |
| | S Koubek | 6 | 7$^7$ | | | | | | | S Koubek | 4 | 2 | | | |
| | O Patience | 2 | 6$^5$ | | S Koubek | 6 | 6 | | | | | | | | |
| | | | | 7 | F López | 3 | 4 | | | | | | | | |

#### Section 2

| First round | 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 |
| | | | | | 4 | A Pavel | 6 | 6 | | | | | | | | | |
| | V Hănescu | 6$^3$ | 1$^r$ | | | B Ulihrach | 1 | 1 | | | | | | | | | |
| | B Ulihrach | 7$^7$ | 4 | | | | | | 4 | A Pavel | 5 | 6 | 4 | | | | |
| WC | A Beck | 7$^7$ | 6 | | | | | | 15 | N Davydenko | 7 | 1 | 6 | | | | |
| | A Peya | 6$^2$ | 1 | | WC | A Beck | 3 | 3 | | | | | | | | | |
| | | | | | 15 | N Davydenko | 6 | 6 | | | | | | | | | |
| | | | | | | | | | | | | | | 15 | N Davydenko | 6 | 6 |
| | | | | | | | | | | | | | | 12 | A Costa | 3 | 4 |
| | | | | | 12 | A Costa | 7 | 6 | | | | | | | | | |
| | F Mantilla | 6$^1$ | 6 | 6 | | F Mantilla | 5 | 4 | | | | | | | | | |
| Q | J Haehnel | 7$^7$ | 2 | 2 | | | | | 12 | A Costa | 7 | 7$^7$ | | | | | |
| | M López | 6 | 6$^5$ | 6 | | | | | 8 | M Zabaleta | 5 | 6$^4$ | | | | | |
| WC | D Elsner | 1 | 7$^7$ | 3 | | M López | 6$^2$ | 2 | | | | | | | | | |
| | | | | | 8 | M Zabaleta | 7$^7$ | 6 | | | | | | | | | |

### 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 | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 6 | T Robredo | 1 | 4 | | | | | | | | | | |
| Q | R Gasquet | 6 | 6 | | Q | R Gasquet | 6 | 6 | | | | | | | | | | |
| LL | É Roger-Vasselin | 2 | 4 | | | | | | | Q | R Gasquet | 4 | 2 | | | | | |
| | A Di Pasquale | 6 | 6 | | | | | | | 11 | D Ferrer | 6 | 6 | | | | | |
| | G Blanco | 3 | 1 | | | A Di Pasquale | 4 | 6 | 1 | | | | | | | | | |
| | | | | | 11 | D Ferrer | 6 | 1 | 6 | | | | | | | | | |
| | | | | | | | | | | | | | | 11 | D Ferrer | 6 | 6$^3$ | 7 |
| | | | | | | | | | | | | | | 14 | R Nadal | 3 | 7$^7$ | 5 |
| | | | | | 14 | R Nadal | 7$^7$ | 6 | | | | | | | | | | |
| Q | P Kohlschreiber | 3 | 6 | 2 | | M Vassallo Argüello | 6$^4$ | 4 | | | | | | | | | | |
| | M Vassallo Argüello | 6 | 3 | 6 | | | | | | 14 | R Nadal | 6 | 6 | | | | | |
| Q | JF Andersen | 6 | 6 | | | | | | | 3 | JI Chela | 2 | 3 | | | | | |
| | L Burgsmüller | 4 | 2 | | Q | JF Andersen | 3 | 1 | | | | | | | | | | |
| | | | | | 3 | JI Chela | 6 | 6 | | | | | | | | | | |

#### Section 4

| 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 |
| | | | | | 5 | J Novák | 6 | 6 | | | | | | | | | | |
| | T Ascione | 6 | 7$^{10}$ | | | T Ascione | 2 | 4 | | | | | | | | | | |
| | T Zíb | 3 | 6$^8$ | | | | | | | 5 | J Novák | 7$^7$ | 4 | 6 | | | | |
| WC | A Waske | 2 | 6 | 1 | | | | | | 10 | M Youzhny | 6$^4$ | 6 | 1 | | | | |
| | A Popp | 6 | 1 | 6 | | A Popp | 3 | 6$^7$ | | | | | | | | | | |
| | | | | | 10 | M Youzhny | 6 | 7$^9$ | | | | | | | | | | |
| | | | | | | | | | | | | | | | 5 | J Novák | 4 | 3 |
| | | | | | | | | | | | | | | | 2 | G Gaudio | 6 | 6 |
| | | | | | 16 | T Berdych | 6 | 6 | | | | | | | | | | |
| LL | B Phau | 6 | 6 | | LL | B Phau | 2 | 3 | | | | | | | | | | |
| | I Heuberger | 3 | 2 | | | | | | | 16 | T Berdych | 2 | 4 | | | | | |
| Q | H Armando | 6 | 6 | | | | | | | 2 | G Gaudio | 6 | 6 | | | | | |
| WC | S Rieschick | 1 | 4 | | Q | H Armando | 6 | 2 | 6$^5$ | | | | | | | | | |
| | | | | | 2 | G Gaudio | 3 | 6 | 7$^7$ | | | | | | | | | |