# 2011 Western & Southern Open – Men's singles

Andy Murray won the men's singles title at the 2011 Cincinnati Masters after Novak Djokovic retired from the final, with the scoreline at 6–4, 3–0. It was Murray's seventh Masters title. Djokovic's retirement in the final marked only his second defeat of the season.
Roger Federer was the two-time defending champion, but lost to Tomáš Berdych in the quarterfinals.

## Seeds

The top eight seeds receive a bye into the second round.
* Novak Djokovic (final, retired due to sore shoulder)
* Rafael Nadal (quarterfinals)
* Roger Federer (quarterfinals)
* Andy Murray (champion)
* David Ferrer (third round)
* Gaël Monfils (quarterfinals)
* Mardy Fish (semifinals)
* Tomáš Berdych (semifinals, retired due to shoulder injury)
* Nicolás Almagro (third round)
* Gilles Simon (quarterfinals)
* Andy Roddick (first round)
* Richard Gasquet (third round)
* Mikhail Youzhny (first round)
* Viktor Troicki (first round)
* Jo-Wilfried Tsonga (second round)
* Stanislas Wawrinka (first round)

## Main 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

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | Novak Djokovic | 3 | 6 | 6 | | | | | | | | |
| 6 | Gaël Monfils | 6 | 4 | 3 | | | | | | | | |
| 6 | Gaël Monfils | 6 | 4 | 3 | 1 | Novak Djokovic | 7 | 0 | | | | |
| | | | | | 8 | Tomáš Berdych | 5 | 0$^r$ | | | | |
| 3 | Roger Federer | 2 | 6$^3$ | | 8 | Tomáš Berdych | 5 | 0$^r$ | | | | |
| 8 | Tomáš Berdych | 6 | 7$^7$ | | | | | | | | | |
| 8 | Tomáš Berdych | 6 | 7$^7$ | | | | | | 1 | Novak Djokovic | 4 | 0$^r$ |
| | | | | | | | | | 4 | Andy Murray | 6 | 3 |
| 10 | Gilles Simon | 3 | 3 | | | | | | | | | | 4 | Andy Murray | 6 | 3 |
| 4 | Andy Murray | 6 | 6 | | | | | | | | | |
| 4 | Andy Murray | 6 | 6 | | 4 | Andy Murray | 6 | 7$^{10}$ | | | | |
| | | | | | 7 | Mardy Fish | 3 | 6$^8$ | | | | |
| 7 | Mardy Fish | 6 | 6 | | 7 | Mardy Fish | 3 | 6$^8$ | | | | |
| 2 | Rafael Nadal | 3 | 4 | | | | | | | | | |

### Top half
#### Section 1

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 1 | N Djokovic | 6 | 6 | | | | | | | | | | |
| WC | R Harrison | 6 | 6 | | WC | R Harrison | 2 | 3 | | | | | | | | | | |
| | JI Chela | 3 | 3 | | | | | | | 1 | N Djokovic | 6 | 6 | | | | | |
| Q | R Štěpánek | 7 | 5 | 7$^7$ | | | | | | Q | R Štěpánek | 3 | 3 | | | | | |
| | J Isner | 5 | 7 | 6$^4$ | Q | R Štěpánek | 6 | 7$^7$ | | | | | | | | | | |
| | A Golubev | 3 | 6 | 6 | | A Golubev | 3 | 6$^2$ | | | | | | | | | | |
| 16 | S Wawrinka | 6 | 4 | 1 | | | | | | | | | | 1 | N Djokovic | 3 | 6 | 6 |
| 11 | A Roddick | 7$^7$ | 5 | 1 | | | | | | | | | | 6 | G Monfils | 6 | 4 | 3 |
| | P Kohlschreiber | 6$^5$ | 7 | 6 | | P Kohlschreiber | 6 | 6 | | | | | | | | | | |
| PR | JC Ferrero | 6 | 3 | 4 | | F López | 1 | 4 | | | | | | | | | | |
| | F López | 4 | 6 | 6 | | | | | | | P Kohlschreiber | 2 | 2 | | | | | |
| | I Dodig | 6 | 7$^7$ | | | | | | | 6 | G Monfils | 6 | 6 | | | | | |
| Q | E Gulbis | 3 | 6$^3$ | | | I Dodig | 6 | 3 | 0$^r$ | | | | | | | | | |
| | | | | | 6 | G Monfils | 4 | 6 | 4 | | | | | | | | | |

#### Section 2

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 3 | R Federer | 6 | 7 | | | | | | | | | |
| | JM del Potro | 4 | | | | JM del Potro | 3 | 5 | | | | | | | | | |
| | A Seppi | 1$^r$ | | | | | | | | 3 | R Federer | 6 | 6 | | | | |
| | M Baghdatis | 6 | 3 | 2 | | | | | | WC | J Blake | 4 | 1 | | | | |
| WC | J Blake | 3 | 6 | 6 | WC | J Blake | 6 | 6 | | | | | | | | | |
| | F Fognini | 6 | 6 | | | F Fognini | 4 | 2 | | | | | | | | | |
| 14 | V Troicki | 4 | 1 | | | | | | | | | | | 3 | R Federer | 2 | 6$^3$ |
| 9 | N Almagro | 7$^7$ | 6 | | | | | | | | | | | 8 | T Berdych | 6 | 7$^7$ |
| | A Montañés | 6$^5$ | 4 | | 9 | N Almagro | 6 | 5 | 7$^7$ | | | | | | | | |
| PR | I Karlović | 6 | 6 | | PR | I Karlović | 3 | 7 | 6$^2$ | | | | | | | | |
| | F Mayer | 1 | 3 | | | | | | | 9 | N Almagro | 2 | 2 | | | | |
| PR | T Haas | 7$^7$ | 4 | 3 | | | | | | 8 | T Berdych | 6 | 6 | | | | |
| | J Mónaco | 6$^5$ | 6 | 6 | | J Mónaco | 6$^2$ | 0 | | | | | | | | | |
| | | | | | 8 | T Berdych | 7$^7$ | 6 | | | | | | | | | |

### Bottom half
#### Section 3

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 5 | D Ferrer | 4 | 6 | 7 | | | | | | | | | |
| Q | M İlhan | 3 | 5 | | WC | G Dimitrov | 6 | 1 | 5 | | | | | | | | | |
| WC | G Dimitrov | 6 | 7 | | | | | | | 5 | D Ferrer | 4 | 7$^7$ | 4 | | | | |
| | J Tipsarević | 6 | 3 | 7$^7$ | | | | | | 10 | G Simon | 6 | 6$^3$ | 6 | | | | |
| Q | É Roger-Vasselin | 0 | 6 | 6$^5$ | | J Tipsarević | 7$^7$ | 2 | 3 | | | | | | | | | |
| | J Melzer | 7$^7$ | 3 | 5 | 10 | G Simon | 6$^3$ | 6 | 6 | | | | | | | | | |
| 10 | G Simon | 6$^3$ | 6 | 7 | | | | | | | | | | | 10 | G Simon | 3 | 3 |
| 15 | J-W Tsonga | 6 | 6 | | | | | | | | | | | | 4 | A Murray | 6 | 6 |
| | M Čilić | 3 | 4 | | 15 | J-W Tsonga | 3 | 4 | | | | | | | | | | |
| Q | A Bogomolov Jr. | 6 | 6 | | Q | A Bogomolov Jr. | 6 | 6 | | | | | | | | | | |
| WC | R Ginepri | 4 | 3 | | | | | | | Q | A Bogomolov Jr. | 2 | 5 | | | | | |
| Q | K Nishikori | 4 | 4 | | | | | | | 4 | A Murray | 6 | 7 | | | | | |
| | D Nalbandian | 6 | 6 | | | D Nalbandian | 4 | 1 | | | | | | | | | | |
| | | | | | 4 | A Murray | 6 | 6 | | | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 7 | M Fish | 6 | 6 | | | | | | | | | |
| | N Davydenko | 6 | 7$^7$ | | | N Davydenko | 0 | 2 | | | | | | | | | |
| | S Stakhovsky | 2 | 6$^5$ | | | | | | 7 | M Fish | 7 | 7 | | | | | |
| | X Malisse | 3 | 6$^6$ | | | | | | 12 | R Gasquet | 5 | 5 | | | | | |
| | K Anderson | 6 | 7$^8$ | | | K Anderson | 6$^4$ | 4 | | | | | | | | | |
| | A Dolgopolov | 1 | 6$^4$ | | 12 | R Gasquet | 7$^7$ | 6 | | | | | | | | | |
| 12 | R Gasquet | 6 | 7$^7$ | | | | | | | | | | | 7 | M Fish | 6 | 6 |
| 13 | M Youzhny | 5 | 6 | 6$^4$ | | | | | | | | | | 2 | R Nadal | 3 | 4 |
| | M Llodra | 7 | 3 | 7$^7$ | | M Llodra | 4 | 4 | | | | | | | | | |
| | T Bellucci | 3 | 6$^4$ | | | F Verdasco | 6 | 6 | | | | | | | | | |
| | F Verdasco | 6 | 7$^7$ | | | | | | | F Verdasco | 6$^5$ | 7$^7$ | 6$^9$ | | | | |
| | G García López | 3 | 0$^r$ | | | | | | 2 | R Nadal | 7$^7$ | 6$^4$ | 7$^{11}$ | | | | |
| Q | J Benneteau | 6 | 1 | | Q | J Benneteau | 4 | 5 | | | | | | | | | |
| | | | | | 2 | R Nadal | 6 | 7 | | | | | | | | | |