# 2011 Ethias Trophy – Singles

Adrian Mannarino was the defending champion, but lost in the first round to Michał Przysiężny. Andreas Seppi won the title, defeating Julien Benneteau 2–6, 6–3, 7–6$^{(7–4)}$ in the final.

## Seeds

* Xavier Malisse (second round)
* Andreas Seppi (champion)
* Sergiy Stakhovsky (first round)
* Adrian Mannarino (first round)
* Julien Benneteau (final)
* Olivier Rochus (first round)
* Nicolas Mahut (quarterfinals)
* Steve Darcis (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 |
| WC | David Goffin | 4 | 2 | | | | | |
| 5 | Julien Benneteau | 6 | 6 | | | | | |
| 5 | Julien Benneteau | 6 | 6 | 5 | Julien Benneteau | 6 | 3 | 6$^4$ |
| | | | | 2 | Andreas Seppi | 2 | 6 | 7$^7$ |
| | Ričardas Berankis | 6$^4$ | 6$^2$ | 2 | Andreas Seppi | 2 | 6 | 7$^7$ |
| 2 | Andreas Seppi | 7$^7$ | 7$^7$ | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1/WC | X Malisse | 6 | 6 | | | | | | | | | | | | | | |
| | L Lacko | 4 | 3 | | 1/WC | X Malisse | 1 | 5 | | | | | | | | | |
| | D Brown | 6 | 2 | 1 | | A Falla | 6 | 7 | | | | | | | | | |
| | A Falla | 3 | 6 | 6 | | | | | | A Falla | 0 | 7$^8$ | 6$^4$ | | | | |
| Q | J Goodall | 2 | 3 | | | | | | WC | D Goffin | 6 | 6$^6$ | 7$^7$ | | | | |
| WC | Y Mertens | 6 | 6 | | WC | Y Mertens | 4 | 4 | | | | | | | | | |
| WC | D Goffin | 7 | 4 | 7$^7$ | WC | D Goffin | 6 | 6 | | | | | | | | | |
| 6 | O Rochus | 5 | 6 | 6$^4$ | | | | | | | | | | WC | D Goffin | 4 | 2 |
| 3 | S Stakhovsky | 6$^2$ | 3 | | | | | | | | | | | 5 | J Benneteau | 6 | 6 |
| | M Bachinger | 7$^7$ | 6 | | | M Bachinger | 4 | 4 | | | | | | | | | |
| | R Bemelmans | 0 | 2 | | | T Kamke | 6 | 6 | | | | | | | | | |
| | T Kamke | 6 | 6 | | | | | | | T Kamke | 2 | 6 | 3 | | | | |
| | E Roger-Vasselin | 3 | 6 | 4 | | | | | 5 | J Benneteau | 6 | 4 | 6 | | | | |
| | S Bubka | 6 | 2 | 6 | | S Bubka | 4 | 2 | | | | | | | | | |
| | A Golubev | 4 | 3 | | 5 | J Benneteau | 6 | 6 | | | | | | | | | |
| 5 | J Benneteau | 6 | 6 | | | | | | | | | | | | | | |

### Bottom half

| 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 |
| 7 | N Mahut | 6 | 6 | | | | | | | | | | | | | | |
| | A Brugués-Davi | 2 | 1 | 7 | N Mahut | w/o | | | | | | | | | | | |
| | K Kravchuk | 6$^1$ | 6$^4$ | | I Sijsling | | | | | | | | | | | | |
| | I Sijsling | 7$^7$ | 7$^7$ | | | | | | 7 | N Mahut | 1 | 3 | | | | | |
| | K de Schepper | 4 | 2 | | | | | | | R Berankis | 6 | 6 | | | | | |
| | R Berankis | 6 | 6 | | R Berankis | 1 | 6 | 6 | | | | | | | | | |
| Q | M Przysiężny | 6 | 7$^7$ | Q | M Przysiężny | 6 | 4 | 1 | | | | | | | | | |
| 4 | A Mannarino | 2 | 6$^1$ | | | | | | | | | | | | R Berankis | 6$^4$ | 6$^2$ |
| 8 | S Darcis | 6 | 7$^8$ | | | | | | | | | | | 2 | A Seppi | 7$^7$ | 7$^7$ |
| Q | C Niland | 1 | 6$^6$ | 8 | S Darcis | 7$^7$ | 4 | 6 | | | | | | | | | |
| | M Teixeira | 1 | 2 | WC | M Authom | 6$^4$ | 6 | 2 | | | | | | | | | |
| WC | M Authom | 6 | 6 | | | | | | 8 | S Darcis | 6 | 5 | 0 | | | | |
| Q | J Dasnières de Veigy | 5 | 6$^1$ | | | | | | 2 | A Seppi | 3 | 7 | 6 | | | | |
| | M Jaziri | 7 | 7$^7$ | | M Jaziri | 1 | 1 | | | | | | | | | | |
| | Grégoire Burquier | 1 | 0 | 2 | A Seppi | 6 | 6 | | | | | | | | | | |
| 2 | A Seppi | 6 | 6 | | | | | | | | | | | | | | |