# 2004 BMW Open – Singles

Roger Federer was the defending champion but did not compete that year.
Nikolay Davydenko won in the final 6–4, 7–5 against Martin Verkerk.

## Seeds

* Rainer Schüttler (quarterfinals)
* Paradorn Srichaphan (first round)
* Jiří Novák (second round)
* Martin Verkerk (final)
* Vince Spadea (second round)
* Andrei Pavel (first round)
* Taylor Dent (second round)
* James Blake (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 |
| | Nikolay Davydenko | 6 | 6 | | | | |
| | Luis Horna | 4 | 1 | | | | |
| | Luis Horna | 4 | 1 | | Nikolay Davydenko | 6 | 7 |
| | | | | 4 | Martin Verkerk | 4 | 5 |
| 4 | Martin Verkerk | 7$^7$ | 6 | 4 | Martin Verkerk | 4 | 5 |
| | Olivier Rochus | 6$^2$ | 3 | | | | |

### Top half

| 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 |
| 1 | R Schüttler | 6 | 7$^7$ | | | | | | | | | | | | |
| | R Söderling | 4 | 6$^5$ | 1 | R Schüttler | 6 | 2 | 6 | | | | | | | |
| WC | T Haas | 6 | 6 | WC | T Haas | 4 | 6 | 4 | | | | | | | |
| | B Ulihrach | 3 | 2 | | | | | | 1 | R Schüttler | 1 | 6$^4$ | | | |
| | L Burgsmüller | 2 | 6$^5$ | | | | | | | N Davydenko | 6 | 7$^7$ | | | |
| | V Hănescu | 6 | 7$^7$ | | V Hănescu | 7$^8$ | 2 | 4 | | | | | | | |
| | N Davydenko | 7$^7$ | 6 | | N Davydenko | 6$^6$ | 6 | 6 | | | | | | | |
| 6 | A Pavel | 6$^3$ | 4 | | | | | | | | | | N Davydenko | 6 | 6 |
| 3 | J Novák | 6 | 6 | | | | | | | | | | L Horna | 4 | 1 |
| | M Youzhny | 4 | 2 | 3 | J Novák | 3 | 5 | | | | | | | | |
| | K Kučera | 3 | 5 | | R Štěpánek | 6 | 7 | | | | | | | | |
| | R Štěpánek | 6 | 7 | | | | | | | R Štěpánek | 6$^6$ | 6$^2$ | | | |
| | L Horna | 6 | 6 | | | | | | | L Horna | 7$^8$ | 7$^7$ | | | |
| | O Mutis | 4 | 1 | | L Horna | 4 | 1 | | | | | | | | |
| | A Dupuis | 6$^5$ | 6$^2$ | 7 | T Dent | 6 | 3$^r$ | | | | | | | | |
| 7 | T Dent | 7$^7$ | 7$^7$ | | | | | | | | | | | | |

### 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 |
| 8 | J Blake | 4 | 6$^6$ | | | | | | | | | | | | | | | |
| | S Sargsian | 6 | 7$^8$ | | | S Sargsian | 2 | 4 | | | | | | | | | | |
| Q | M Kratochvil | 6 | 4 | 6 | Q | M Kratochvil | 6 | 6 | | | | | | | | | | |
| | X Malisse | 4 | 6 | 3 | | | | | | Q | M Kratochvil | 3 | 6$^0$ | | | | | |
| | W Moodie | 4 | 3 | | | | | | | 4 | M Verkerk | 6 | 7$^7$ | | | | | |
| Q | B Pašanski | 6 | 6 | | Q | B Pašanski | 6$^3$ | 6$^4$ | | | | | | | | | | |
| | J Johansson | 4 | 2 | | 4 | M Verkerk | 7$^7$ | 7$^7$ | | | | | | | | | | |
| 4 | M Verkerk | 6 | 6 | | | | | | | | | | | | 4 | M Verkerk | 7$^7$ | 6 |
| 5 | V Spadea | 6 | 6 | | | | | | | | | | | | | O Rochus | 6$^2$ | 3 |
| Q | D Kindlmann | 4 | 2 | | 5 | V Spadea | 6 | 5 | 6$^4$ | | | | | | | | | |
| WC | G Ivanišević | 4 | 6$^0$ | | Q | A Waske | 3 | 7 | 7$^7$ | | | | | | | | | |
| Q | A Waske | 6 | 7$^7$ | | | | | | | Q | A Waske | 6 | 3 | 4 | | | | |
| | K Carlsen | 6$^7$ | 4 | | | | | | | | O Rochus | 3 | 6 | 6 | | | | |
| WC | P Kohlschreiber | 7$^9$ | 6 | | WC | P Kohlschreiber | 6$^4$ | 2 | | | | | | | | | | |
| | O Rochus | 6 | 6 | | | O Rochus | 7$^7$ | 6 | | | | | | | | | | |
| 2 | P Srichaphan | 3 | 2 | | | | | | | | | | | | | | | |