# 2011 Serbia Open – Singles

Novak Djokovic defeated Feliciano López in the final, 7–6$^{(7–4)}$, 6–2 to win the singles tennis title at the 2011 Serbia Open. It was his 27th consecutive win of the season.
Sam Querrey was the reigning champion, but chose not to participate this year.

## Seeds

The first four seeds received a bye in to the Second Round.
* Novak Djokovic (champion)
* Viktor Troicki (second round)
* Guillermo García-López (second round)
* Albert Montañés (quarterfinals)
* John Isner (first round)
* Ernests Gulbis (first round)
* Janko Tipsarević (semifinals, withdrew due to right thigh injury)
* Juan Mónaco (first 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 | Novak Djokovic | w/o | | | | | |
| 7 | Janko Tipsarević | | | | | | |
| 7 | Janko Tipsarević | | | 1 | Novak Djokovic | 7 | 6 |
| | | | | | Feliciano López | 6$^4$ | 2 |
| | Feliciano López | 7 | 6 | | Feliciano López | 6$^4$ | 2 |
| | Filippo Volandri | 6$^3$ | 2 | | | | |

### 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 |
| | | | | | 1 | N Djokovic | 6 | 6 | | | | | | | | | |
| Q | A Ungur | 6$^2$ | 6 | 6 | Q | A Ungur | 2 | 3 | | | | | | | | | |
| | R Ramírez Hidalgo | 7 | 3 | 4 | | | | | | 1 | N Djokovic | 6 | 6 | | | | |
| | T Kamke | 6$^0$ | 1 | | | | | | | | B Kavčič | 3 | 2 | | | | |
| | B Kavčič | 7 | 6 | | | B Kavčič | 7 | 6 | | | | | | | | | |
| | R Mello | 6 | 7 | | | R Mello | 5 | 3 | | | | | | | | | |
| 5 | J Isner | 4 | 6$^4$ | | | | | | | | | | | | 1 | N Djokovic | w/o |
| | | | | | | | | | | | | | | | 7 | J Tipsarević | |
| | | | | | 3 | G García-López | 6$^6$ | 6 | 6$^8$ | | | | | | | | |
| | M Kukushkin | 6 | 4 | 2 | | S Devvarman | 7 | 2 | 7 | | | | | | | | |
| | S Devvarman | 1 | 6 | 6 | | | | | | | S Devvarman | 3 | 6 | 4 | | | |
| SE | M Zverev | 7 | 3 | 6 | | | | | | 7 | J Tipsarević | 6 | 3 | 6 | | | |
| | D Sela | 6$^4$ | 6 | 3 | SE | M Zverev | 2 | 0 | | | | | | | | | |
| | K Nishikori | 6 | 2 | 6$^0$ | 7 | J Tipsarević | 6 | 6 | | | | | | | | | |
| 7 | J Tipsarević | 2 | 6 | 7 | | | | | | | | | | | | | |

### 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 |
| 8 | J Mónaco | 4 | 5 | | | | | | | | | | | | | |
| | F López | 6 | 7 | | | F López | 6 | 7 | | | | | | | | |
| WC | F González | 6 | 6 | | WC | F González | 4 | 6$^4$ | | | | | | | | |
| Q | M Kližan | 2 | 4 | | | | | | | | F López | 6 | 6 | | | |
| Q | A Peya | 6 | 3 | 4 | | | | | | 4 | A Montañés | 4 | 4 | | | |
| | M Berrer | 4 | 6 | 6 | | M Berrer | 6 | 2 | 2 | | | | | | | |
| | | | | | 4 | A Montañés | 3 | 6 | 6 | | | | | | | |
| | | | | | | | | | | | | | | F López | 7 | 6 |
| 6/WC | E Gulbis | 2 | 4 | | | | | | | | | | | F Volandri | 6$^3$ | 2 |
| SE | I Marchenko | 6 | 6 | | SE | I Marchenko | 3 | 6 | 3 | | | | | | | |
| | F Volandri | 6 | 6 | | | F Volandri | 6 | 1 | 6 | | | | | | | |
| WC | D Lajović | 1 | 4 | | | | | | | | F Volandri | 6 | 6 | | | |
| | M Granollers | 7 | 6 | | | | | | | | M Granollers | 2 | 3 | | | |
| Q | F Škugor | 5 | 1 | | | M Granollers | 6 | 6 | | | | | | | | |
| | | | | | 2 | V Troicki | 2 | 3 | | | | | | | | |