# 2011 SAP Open – Singles

Fernando Verdasco was the defending champion, but Milos Raonic defeated him in the final 7–6$^{(7–6)}$, 7–6$^{(7–5)}$.

## Seeds

* Fernando Verdasco (final)
* Gaël Monfils (semifinals, withdrew due to a left wrist injury)
* Sam Querrey (first round)
* Xavier Malisse (first round)
* Denis Istomin (quarterfinals)
* Benjamin Becker (first round)
* Lleyton Hewitt (quarterfinals)
* Kei Nishikori (second 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 | Final | Final | Final | Final |
| 1 | Fernando Verdasco | 6 | 6 | | | | |
| PR | Juan Martín del Potro | 4 | 4 | | | | |
| PR | Juan Martín del Potro | 4 | 4 | 1 | Fernando Verdasco | 6$^6$ | 6$^5$ |
| | | | | | Milos Raonic | 7 | 7 |
| | Milos Raonic | w/o | | | Milos Raonic | 7 | 7 |
| 2 | Gaël Monfils | | | | | | |

### Top half

| 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 |
| 1 | F Verdasco | 6 | 6 | | | | | | | | | | | | | |
| WC | R Ram | 3 | 2 | 1 | F Verdasco | 7 | 7 | | | | | | | | | |
| | R Sweeting | 4 | 4 | | I Karlović | 5 | 5 | | | | | | | | | |
| | I Karlović | 6 | 6 | | | | | | 1 | F Verdasco | 6 | 6 | | | | |
| | M Russell | 6 | 6 | | | | | | 5 | D Istomin | 4 | 4 | | | | |
| Q | A Kuznetsov | 4 | 2 | | M Russell | 6$^7$ | 6$^4$ | | | | | | | | | |
| Q | R Borvanov | 3 | 5 | 5 | D Istomin | 7 | 7 | | | | | | | | | |
| 5 | D Istomin | 6 | 7 | | | | | | | | | | 1 | F Verdasco | 6 | 6 |
| 3 | S Querrey | 6$^6$ | 3 | | | | | | | | | | PR | JM del Potro | 4 | 4 |
| | L Lacko | 7 | 6 | | L Lacko | 1 | 6$^1$ | | | | | | | | | |
| | T Gabashvili | 3 | 2 | PR | JM del Potro | 6 | 7 | | | | | | | | | |
| PR | JM del Potro | 6 | 6 | | | | | | PR | JM del Potro | 6 | 6 | | | | |
| | B Dabul | 6 | 6 | | | | | | 7 | L Hewitt | 2 | 3 | | | | |
| | A Falla | 4 | 3 | | B Dabul | 6 | 5 | 3 | | | | | | | | |
| | B Phau | 3 | 3 | 7 | L Hewitt | 3 | 7 | 6 | | | | | | | | |
| 7 | L Hewitt | 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 |
| 6 | B Becker | 3 | 6$^2$ | | | | | | | | | | | | | |
| | R Berankis | 6 | 7 | | | R Berankis | 6 | 5 | 7 | | | | | | | |
| | D Brown | 6$^2$ | 4 | | | D Young | 4 | 7 | 5 | | | | | | | |
| | D Young | 7 | 6 | | | | | | | | R Berankis | 4 | 6$^2$ | | | |
| Q | J Levine | 5 | 1 | | | | | | | | M Raonic | 6 | 7 | | | |
| | J Blake | 7 | 6 | | | J Blake | 2 | 6$^4$ | | | | | | | | |
| | M Raonic | 6 | 6 | | | M Raonic | 6 | 7 | | | | | | | | |
| 4 | X Malisse | 3 | 4 | | | | | | | | | | | | M Raonic | w/o |
| 8 | K Nishikori | 6 | 7 | | | | | | | | | | | 2 | G Monfils | |
| | J Hájek | 1 | 6$^6$ | | 8 | K Nishikori | 4 | 6 | 1 | | | | | | | |
| Q | R Farah | 5 | 6 | 3 | WC | T Smyczek | 6 | 3 | 6 | | | | | | | |
| WC | T Smyczek | 7 | 3 | 6 | | | | | | WC | T Smyczek | 4 | 6$^6$ | | | |
| | R Kendrick | 7 | 3 | 6 | | | | | | 2 | G Monfils | 6 | 7 | | | |
| | I Kunitsyn | 5 | 6 | 4 | | R Kendrick | 2 | 7 | 4 | | | | | | | |
| WC | B Klahn | 3 | 2 | | 2 | G Monfils | 6 | 5 | 6 | | | | | | | |
| 2 | G Monfils | 6 | 6 | | | | | | | | | | | | | |