# 2011 Singapore ATP Challenger – Singles

Dmitry Tursunov won the first edition of this tournament, by defeating Lukáš Rosol 6–4, 6–2 in the final.

## Seeds

* Somdev Devvarman (quarterfinals)
* Go Soeda (semifinals)
* Paolo Lorenzi (second round)
* Alexandre Kudryavtsev (first round)
* Lukáš Rosol (final)
* Ivo Minář (first round)
* Thiago Alves (first round)
* Andrej Martin (semifinals)

## 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 |
| 8 | Andrej Martin | 4 | 3 | | | | |
| WC | Dmitry Tursunov | 6 | 6 | | | | |
| WC | Dmitry Tursunov | 6 | 6 | WC | Dmitry Tursunov | 6 | 6 |
| | | | | 5 | Lukáš Rosol | 4 | 2 |
| 5 | Lukáš Rosol | 6 | 7 | 5 | Lukáš Rosol | 4 | 2 |
| 2 | Go Soeda | 4 | 6$^2$ | | | | |

### 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 | S Devvarman | 6 | 6 | | | | | | | | | | | | | | |
| WC | P Siriluethaiwattana | 2 | 1 | | 1 | S Devvarman | 6 | 6 | | | | | | | | | |
| | J Millman | 7 | 6$^5$ | 6 | | J Millman | 4 | 3 | | | | | | | | | |
| WC | S Bubka | 6$^2$ | 7 | 2 | | | | | 1 | S Devvarman | 3 | 4 | | | | | |
| | M Viola | 5 | 6 | 7 | | | | | 8 | A Martin | 6 | 6 | | | | | |
| | J Ward | 7 | 0 | 5 | | M Viola | 4 | 5 | | | | | | | | | |
| | S Vagnozzi | 3 | 2 | | 8 | A Martin | 6 | 7 | | | | | | | | | |
| 8 | A Martin | 6 | 6 | | | | | | | | | | | 8 | A Martin | 4 | 3 |
| 4 | A Kudryavtsev | 1 | 2 | | | | | | | | | | | WC | D Tursunov | 6 | 6 |
| | F Cipolla | 6 | 6 | | | F Cipolla | 6 | | | | | | | | | | |
| | D Lojda | 6 | 7 | | | D Lojda | 0 | r | | | | | | | | | |
| | M Crugnola | 2 | 5 | | | | | | | F Cipolla | 7 | 3 | 2 | | | | |
| | B Klein | 1 | 6 | 4 | | | | | WC | D Tursunov | 5 | 6 | 6 | | | | |
| WC | K Rastogi | 6 | 3 | 6 | WC | K Rastogi | 3 | 2 | | | | | | | | | |
| WC | D Tursunov | 6 | 6 | | WC | D Tursunov | 6 | 6 | | | | | | | | | |
| 6 | I Minář | 2 | 4 | | | | | | | | | | | | | | |

### 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 5 | L Rosol | 7 | 7 | | | | | | | | | | | | | | | |
| | R de Voest | 6$^6$ | 6$^5$ | | 5 | L Rosol | 7 | 4 | 7 | | | | | | | | | |
| Q | T-h Yang | 7 | 3 | 0 | | R Ram | 5 | 6 | 6$^6$ | | | | | | | | | |
| | R Ram | 6$^7$ | 6 | 6 | | | | | | 5 | L Rosol | 4 | 6 | 6 | | | | |
| Q | A Sitak | 1 | 6$^4$ | | | | | | | | M Yani | 6 | 4 | 2 | | | | |
| | M Yani | 6 | 7 | | | M Yani | 6 | 6 | | | | | | | | | | |
| | F Škugor | 4 | 6 | 3 | 3 | P Lorenzi | 2 | 4 | | | | | | | | | | |
| 3 | P Lorenzi | 6 | 3 | 6 | | | | | | | | | | | 5 | L Rosol | 6 | 7 |
| 7 | T Alves | 1 | 1 | | | | | | | | | | | | 2 | G Soeda | 4 | 6$^2$ |
| | T Ito | 6 | 6 | | | T Ito | 6 | 1 | | | | | | | | | | |
| | P Polansky | 6$^4$ | 4 | | | N Lindahl | 0 | 2 | r | | | | | | | | | |
| | N Lindahl | 7 | 6 | | | | | | | | T Ito | 3 | 0 | | | | | |
| Q | M Lammer | 6 | 3 | 1 | | | | | | 2 | G Soeda | 6 | 6 | | | | | |
| | I Klec | 4 | 6 | 6 | | I Klec | 5 | 3 | | | | | | | | | | |
| Q | F Nielsen | 6$^7$ | 3 | | 2 | G Soeda | 7 | 6 | | | | | | | | | | |
| 2 | G Soeda | 7 | 6 | | | | | | | | | | | | | | | |