title: 2011 Gerry Weber Open – Singles
text: # 2011 Gerry Weber Open – Singles
  
  Lleyton Hewitt was the defending champion, but lost to Philipp Kohlschreiber in the quarterfinals. Kohlschreiber won the tournament, defeating Philipp Petzschner in an all-German final, the first in the tournament's history, after Petzschner retired in the second set at a score of 7–6, 2–0.
  
  ## Seeds
  
  * Roger Federer (withdrew due to groin injury)
  * Tomáš Berdych (semifinals)
  * Gaël Monfils (semifinals)
  * Mikhail Youzhny (withdrew due to left foot injury)
  * Viktor Troicki (quarterfinals)
  * Florian Mayer (quarterfinals)
  * Alexandr Dolgopolov (second round)
  * Milos Raonic (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 | Semifinals | Final | Final | Final |
  | - | - | - | - | - | - | - | - |
  | | Philipp Kohlschreiber | 6 | 6 | | | | |
  | 3 | Gaël Monfils | 3 | 3 | | | | |
  | 3 | Gaël Monfils | 3 | 3 | | Philipp Kohlschreiber | $7^7$ | 2 |
  | | | | | | Philipp Petzschner | $6^5$ | $0^r$ |
  | | Philipp Petzschner | $7^9$ | 2 | 6 | Philipp Petzschner | $6^5$ | $0^r$ |
  | 2 | Tomáš Berdych | $6^7$ | 6 | 3 | | | |
  
  ### 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 | Semifinals | Semifinals | Semifinals | Semifinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | LL | L Mayer | 2 | 3 | | | | | | | | | | | | | | |
  | | L Hewitt | 6 | 6 | | | L Hewitt | 6 | 6 | | | | | | | | | |
  | | A Seppi | 6 | $6^6$ | 6 | | A Seppi | 4 | 4 | | | | | | | | | |
  | WC | T Haas | 2 | $7^8$ | 3 | | | | | | | L Hewitt | $6^4$ | 3 | | | | |
  | | P Kohlschreiber | 6 | 3 | 6 | | | | | | | P Kohlschreiber | $7^7$ | 6 | | | | |
  | Q | C-M Stebe | 4 | 6 | 1 | | P Kohlschreiber | 6 | $7^7$ | | | | | | | | | |
  | | R Haase | $7^7$ | 4 | 4 | 7 | A Dolgopolov | 3 | $6^5$ | | | | | | | | | |
  | 7 | A Dolgopolov | $6^4$ | 6 | 6 | | | | | | | | | | | P Kohlschreiber | 6 | 6 |
  | 3 | G Monfils | 6 | 6 | | | | | | | | | | | 3 | G Monfils | 3 | 3 |
  | Q | F Serra | 4 | 3 | | 3 | G Monfils | 6 | 6 | | | | | | | | | |
  | | P Riba | $6^4$ | $6^6$ | | | I Dodig | 2 | 3 | | | | | | | | | |
  | | I Dodig | $7^7$ | $7^8$ | | | | | | | 3 | G Monfils | 6 | 6 | | | | |
  | | J Nieminen | $6^2$ | 3 | | | | | | | 6 | F Mayer | 4 | 4 | | | | |
  | | Y-h Lu | $7^7$ | 6 | | | Y-h Lu | $6^4$ | 6 | 4 | | | | | | | | |
  | WC | D Brown | $6^6$ | 6 | 3 | 6 | F Mayer | $7^7$ | 3 | 6 | | | | | | | | |
  | 6 | F Mayer | $7^8$ | 2 | 6 | | | | | | | | | | | | | |
  
  ### Bottom 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 | Semifinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | 8 | M Raonic | 6 | 6 | | | | | | | | | | | | | | | |
  | | P Andújar | 3 | 1 | | 8 | M Raonic | $7^7$ | 6 | | | | | | | | | | |
  | | T Kamke | 4 | | | | T Kamke | $6^2$ | 3 | | | | | | | | | | |
  | | J Reister | $3^r$ | | | | | | | 8 | M Raonic | 3 | $7^8$ | 3 | | | | | |
  | | A Golubev | 6 | $6^5$ | 2 | | | | | | P Petzschner | 6 | $6^6$ | 6 | | | | | |
  | | D Gimeno-Traver | 1 | $7^7$ | 6 | | D Gimeno-Traver | 2 | 4 | | | | | | | | | | |
  | | P Petzschner | 6 | $7^7$ | | | P Petzschner | 6 | 6 | | | | | | | | | | |
  | LL | D Meffert | 2 | $6^5$ | | | | | | | | | | | | P Petzschner | $7^9$ | 2 | 6 |
  | 5 | V Troicki | 6 | 6 | | | | | | | | | | | 2 | T Berdych | $6^7$ | 6 | 3 |
  | WC | M Zverev | 2 | 3 | | 5 | V Troicki | 6 | 6 | | | | | | | | | | |
  | | I Andreev | 6 | 6 | | | I Andreev | 3 | 1 | | | | | | | | | | |
  | | P Starace | 4 | 4 | | | | | | 5 | V Troicki | $6^3$ | 1 | | | | | | |
  | | S Stakhovsky | 3 | $7^7$ | $6^8$ | | | | | 2 | T Berdych | $7^7$ | 6 | | | | | | |
  | Q | J Hernych | 6 | $6^5$ | $7^{10}$ | Q | J Hernych | 3 | $6^7$ | | | | | | | | | | |
  | Q | R Bemelmans | 7 | $6^8$ | 4 | 2 | T Berdych | 6 | 7 | | | | | | | | | | |
  | 2 | T Berdych | 5 | $7^{10}$ | 6 | | | | | | | | | | | | | | |
  