# 2011 BMW Open – Singles

Mikhail Youzhny was the defending champion, but lost to Philipp Petzschner in the second round. 7th seed Nikolay Davydenko defeated 5th seed Florian Mayer in the final 6–3, 3–6, 6–1 to win the title. It was Davydenko's first title since January 2010, and his 21st career title.

## Seeds

* Mikhail Youzhny (second round)
* Stanislas Wawrinka (first round)
* Marin Čilić (quarterfinals)
* Marcos Baghdatis (second round)
* Florian Mayer (final)
* Sergiy Stakhovsky (second round)
* Nikolay Davydenko (champion)
* Philipp Kohlschreiber (quarterfinals)

## 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 |
| | Philipp Petzschner | 3 | 4 | | | | | |
| 5 | Florian Mayer | 6 | 6 | | | | | |
| 5 | Florian Mayer | 6 | 6 | 5 | Florian Mayer | 3 | 6 | 1 |
| | | | | 7 | Nikolay Davydenko | 6 | 3 | 6 |
| 7 | Nikolay Davydenko | 6 | 4 | 7 | Nikolay Davydenko | 6 | 3 | 6 |
| | Radek Štěpánek | 3 | 0$^r$ | | | | | |

### 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 |
| 1 | M Youzhny | 7 | 6 | | | | | | | | | | | | | | | |
| | M Bachinger | 5 | 2 | | 1 | M Youzhny | 6$^5$ | 6 | 2 | | | | | | | | | |
| | I Dodig | 1 | 4 | | | P Petzschner | 7 | 3 | 6 | | | | | | | | | |
| | P Petzschner | 6 | 6 | | | | | | | | P Petzschner | 7 | 7 | | | | | |
| | J Hájek | 6 | 4 | 0 | | | | | | | P Starace | 6$^3$ | 6$^6$ | | | | | |
| | P Starace | 3 | 6 | 6 | | P Starace | 6 | 6 | | | | | | | | | | |
| | D Istomin | 1$^r$ | | | 6 | S Stakhovsky | 4 | 2 | | | | | | | | | | |
| 6 | S Stakhovsky | 5 | | | | | | | | | | | | | | P Petzschner | 3 | 4 |
| 4 | M Baghdatis | 7 | 6 | | | | | | | | | | | | 5 | F Mayer | 6 | 6 |
| | J Benneteau | 6$^2$ | 3 | | 4 | M Baghdatis | 6 | 6$^6$ | 2 | | | | | | | | | |
| | G Dimitrov | 6 | 6 | | | G Dimitrov | 3 | 7 | 6 | | | | | | | | | |
| WC | A Beck | 1 | 4 | | | | | | | | G Dimitrov | 6$^4$ | 6 | 4 | | | | |
| | T Gabashvili | 3 | 6 | 6 | | | | | | 5 | F Mayer | 7 | 3 | 6 | | | | |
| | R Schüttler | 6 | 4 | 3 | | T Gabashvili | 4 | 6$^1$ | | | | | | | | | | |
| Q | S Darcis | 1 | 2 | | 5 | F Mayer | 6 | 7 | | | | | | | | | | |
| 5 | F Mayer | 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 7 | N Davydenko | 6 | 7 | | | | | | | | | | | | | | |
| Q | A Kuznetsov | 1 | 6$^4$ | | 7 | N Davydenko | 3 | 7 | 6 | | | | | | | | |
| Q | J Reister | 7 | 6 | | Q | J Reister | 6 | 6$^5$ | 1 | | | | | | | | |
| | D Brands | 6$^1$ | 1 | | | | | | | 7 | N Davydenko | 7 | 6 | | | | |
| | R Kendrick | 4 | 4 | | | | | | | 3 | M Čilić | 5 | 3 | | | | |
| | H Zeballos | 6 | 6 | | | H Zeballos | 3 | 6$^7$ | | | | | | | | | |
| | S Bolelli | 5 | 6$^4$ | | 3 | M Čilić | 6 | 7 | | | | | | | | | |
| 3 | M Čilić | 7 | 7 | | | | | | | | | | | 7 | N Davydenko | 6 | 4 |
| 8 | P Kohlschreiber | 6 | 6 | | | | | | | | | | | | R Štěpánek | 3 | 0$^r$ |
| Q | R Farah | 3 | 1 | | 8 | P Kohlschreiber | 6 | 6 | | | | | | | | | |
| | R Haase | 4 | 6 | 4 | LL | D Gremelmayr | 3 | 3 | | | | | | | | | |
| LL | D Gremelmayr | 6 | 4 | 6 | | | | | | 8 | P Kohlschreiber | 4 | 0 | | | | |
| | R Štěpánek | 6 | 4 | 6 | | | | | | | R Štěpánek | 6 | 6 | | | | |
| | A Golubev | 1 | 6 | 3 | | R Štěpánek | 7 | 6$^5$ | 6 | | | | | | | | |
| WC | D Brown | 6$^6$ | 6 | 7 | WC | D Brown | 6$^6$ | 7 | 3 | | | | | | | | |
| 2 | S Wawrinka | 7 | 4 | 5 | | | | | | | | | | | | | |