# 2005 BMW Open – Singles

Nikolay Davydenko was the defending champion, but lost in the second round this year.
David Nalbandian won the title, defeating Andrei Pavel 6–4, 6–1 in the final.

## Seeds

* David Nalbandian (champion)
* Nikolay Davydenko (second round)
* Mario Ančić (second round)
* Tommy Haas (semifinals)
* Andrei Pavel (final)
* Igor Andreev (second round)
* Paradorn Srichaphan (second round)
* Rainer Schüttler (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 | Semifinals | Final | Final | Final | Final |
| WC/1 | David Nalbandian | 6 | 6 | | | | | |
| Q | Jarkko Nieminen | 3 | 0 | | | | | |
| Q | Jarkko Nieminen | 3 | 0 | | WC/1 | David Nalbandian | 6 | 6 |
| | | | | | 5 | Andrei Pavel | 1 | 4 |
| 4 | Tommy Haas | 4 | 7$^7$ | 4 | 5 | Andrei Pavel | 1 | 4 |
| 5 | Andrei Pavel | 6 | 6$^2$ | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| WC/1 | D Nalbandian | 7 | 1 | 6 | | | | | | | | | | | | | | |
| SE | N Lapentti | 5 | 6 | 4 | WC/1 | D Nalbandian | 6 | 6 | | | | | | | | | | |
| | F Mayer | 6 | 2 | 3 | Q | P Luczak | 2 | 2 | | | | | | | | | | |
| Q | P Luczak | 2 | 6 | 6 | | | | | | WC/1 | D Nalbandian | 6 | 6 | | | | | |
| | J Mónaco | 7 | 6 | | | | | | | | J Mónaco | 0 | 4 | | | | | |
| | L Burgsmüller | 5 | 3 | | | J Mónaco | 7$^{14}$ | 2 | 6 | | | | | | | | | |
| | P Wessels | 3 | 4 | | 7 | P Srichaphan | 6$^{12}$ | 6 | 3 | | | | | | | | | |
| 7 | P Srichaphan | 6 | 6 | | | | | | | | | | | | WC/1 | D Nalbandian | 6 | 6 |
| 3 | M Ančić | 6 | 6 | | | | | | | | | | | | Q | J Nieminen | 3 | 0 |
| | J Acasuso | 2 | 4 | | 3 | M Ančić | 6$^5$ | 4 | | | | | | | | | | |
| Q | J Nieminen | 7 | 6 | | Q | J Nieminen | 7$^7$ | 6 | | | | | | | | | | |
| Q | B Ulihrach | 5 | 1 | | | | | | | Q | J Nieminen | 3 | 6 | 6 | | | | |
| | J Benneteau | 4 | 1 | | | | | | | Q | M Mertiňák | 6 | 1 | 4 | | | | |
| Q | M Mertiňák | 6 | 6 | | Q | M Mertiňák | 6 | 6 | | | | | | | | | | |
| | R Mello | 6 | 6 | | | R Mello | 3 | 0 | | | | | | | | | | |
| 8 | R Schüttler | 4 | 2 | | | | | | | | | | | | | | | |

### 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 | Semifinals |
| 6 | I Andreev | 6 | 6 | | | | | | | | | | | | | | | | |
| | J Vaněk | 1 | 2 | | 6 | I Andreev | 4 | 7$^7$ | 6$^3$ | | | | | | | | | | |
| | W Arthurs | 6 | 6 | | | W Arthurs | 6 | 6$^5$ | 7$^7$ | | | | | | | | | | |
| | I Labadze | 3 | 3 | | | | | | | | W Arthurs | 6$^6$ | 6$^5$ | | | | | | |
| | H-T Lee | 6 | 3 | 6 | | | | | | 4 | T Haas | 7$^8$ | 7$^7$ | | | | | | |
| LL | J-R Lisnard | 4 | 6 | 3 | | H-T Lee | 3 | 4 | | | | | | | | | | | |
| | N Almagro | 5 | 3 | | 4 | T Haas | 6 | 6 | | | | | | | | | | | |
| 4 | T Haas | 7 | 6 | | | | | | | | | | | | 4 | T Haas | 4 | 7$^7$ | 4 |
| 5 | A Pavel | 6 | 6 | | | | | | | | | | | | 5 | A Pavel | 6 | 6$^2$ | 6 |
| WC | A Waske | 4 | 4 | | 5 | A Pavel | 6 | 1 | 6 | | | | | | | | | | |
| WC | T Summerer | 2 | 5 | | | S Schalken | 1 | 6 | 1 | | | | | | | | | | |
| | S Schalken | 6 | 7 | | | | | | | 5 | A Pavel | 6 | 3 | 6 | | | | | |
| | T Zíb | 4 | 2 | | | | | | | | R Sluiter | 1 | 6 | 3 | | | | | |
| | R Sluiter | 6 | 6 | | | R Sluiter | 6 | 1 | 6 | | | | | | | | | | |
| | J Haehnel | 6$^2$ | 2 | | 2 | N Davydenko | 1 | 6 | 3 | | | | | | | | | | |
| 2 | N Davydenko | 7$^7$ | 6 | | | | | | | | | | | | | | | | |