# 2011 PTT Thailand Open – Singles

Guillermo García López was the defending champion, but was eliminated by eventual finalist Donald Young in the second round.
First seed, Andy Murray, claimed the title, beating Donald Young 6–2, 6–0 in the final.

## Seeds

The top four seeds received a bye into the second round.
* Andy Murray (champion)
* Gaël Monfils (semifinals)
* Gilles Simon (semifinals)
* Guillermo García López (second round)
* Ivan Dodig (first round)
* Fabio Fognini (first round)
* Robin Haase (second round)
* Pablo Andújar (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 | Semifinals | Final | Final | Final | Final |
| 1 | Andy Murray | 6 | 3 | 6 | | | | |
| 3 | Gilles Simon | 2 | 6 | 2 | | | | |
| 3 | Gilles Simon | 2 | 6 | 2 | 1 | Andy Murray | 6 | 6 |
| | | | | | | Donald Young | 2 | 0 |
| | Donald Young | 4 | 7$^7$ | 7$^7$ | | Donald Young | 2 | 0 |
| 2 | Gaël Monfils | 6 | 6$^5$ | 6$^5$ | | | | |

### 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 | Semifinals | Semifinals |
| | | | | | 1 | A Murray | 6 | 6 | | | | | | | | | | | |
| | M Berrer | 7$^7$ | 6 | | | M Berrer | 4 | 2 | | | | | | | | | | | |
| Q | M Chiudinelli | 6$^4$ | 3 | | | | | | | 1 | A Murray | 6 | 6 | | | | | | |
| Q | S Bolelli | 7 | 7 | | | | | | | | G Dimitrov | 4 | 4 | | | | | | |
| | E Gulbis | 6$^5$ | 6$^5$ | | Q | S Bolelli | 6$^8$ | 1 | | | | | | | | | | | |
| | G Dimitrov | 6 | 7 | | | G Dimitrov | 7$^{10}$ | 6 | | | | | | | | | | | |
| 5 | I Dodig | 2 | 5 | | | | | | | | | | | | 1 | A Murray | 6 | 3 | 6 |
| | | | | | | | | | | | | | | | 3 | G Simon | 2 | 6 | 2 |
| | | | | | 3 | G Simon | 6$^4$ | 7 | 6 | | | | | | | | | | |
| | Y-h Lu | 6 | 7 | | | Y-h Lu | 7$^7$ | 5 | 4 | | | | | | | | | | |
| | J Souza | 2 | 5 | | | | | | | 3 | G Simon | 3 | 6 | 6 | | | | | |
| Q | G Jones | 5 | 4 | | | | | | | | M Bachinger | 6 | 3 | 2 | | | | | |
| | M Bachinger | 7 | 6 | | | M Bachinger | 7$^7$ | 6 | | | | | | | | | | | |
| WC | D Udomchoke | 6 | 3 | 6 | WC | D Udomchoke | 6$^5$ | 3 | | | | | | | | | | | |
| 6 | F Fognini | 4 | 6 | 2 | | | | | | | | | | | | | | | |

### 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 | Semifinals | Semifinals |
| 8 | P Andújar | 0 | 1 | | | | | | | | | | | | | | | |
| | T Kamke | 6 | 6 | | | T Kamke | 2 | 6$^7$ | | | | | | | | | | |
| | K Beck | 6 | 6$^0$ | 6$^4$ | Q | G Soeda | 6 | 7$^9$ | | | | | | | | | | |
| Q | G Soeda | 3 | 7$^7$ | 7$^7$ | | | | | | Q | G Soeda | 1 | 2 | | | | | |
| | I Andreev | 6$^6$ | 1$^r$ | | | | | | | | D Young | 6 | 6 | | | | | |
| | D Young | 7 | 2 | | | D Young | 6 | 6$^0$ | 7 | | | | | | | | | |
| | | | | | 4 | G García López | 1 | 7$^7$ | 5 | | | | | | | | | |
| | | | | | | | | | | | | | | | D Young | 4 | 7$^7$ | 7$^7$ |
| 7 | R Haase | 6 | 7$^7$ | | | | | | | | | | | 2 | G Monfils | 6 | 6$^5$ | 6$^5$ |
| WC | K Wachiramanowong | 3 | 6$^1$ | | 7 | R Haase | 6$^5$ | 6$^4$ | | | | | | | | | | |
| | J Nieminen | 6 | 4 | 7 | | J Nieminen | 7$^7$ | 7$^7$ | | | | | | | | | | |
| WC | D Thiem | 1 | 6 | 5 | | | | | | | J Nieminen | 5 | 6$^4$ | | | | | |
| | D Sela | 2 | 3 | | | | | | | 2 | G Monfils | 7 | 7$^7$ | | | | | |
| | S Giraldo | 6 | 6 | | | S Giraldo | 4 | 6 | 1 | | | | | | | | | |
| | | | | | 2 | G Monfils | 6 | 4 | 6 | | | | | | | | | |