# 2013 Chang-Sat Bangkok Open – Singles

Dudi Sela was the defending champion but chose to participate at the 2013 US Open instead. Top seed Blaž Kavčič won the title over surprise finalist Jeong Suk-Young 6–3, 6–1.

## Seeds

* Blaž Kavčič (champion)
* Matthew Ebden (semifinals, Retired)
* Jimmy Wang (semifinals, Retired)
* Yūichi Sugita (quarterfinals)
* Hiroki Moriya (quarterfinals)
* Matt Reid (quarterfinals)
* Márton Fucsovics (withdrew)
* Benjamin Mitchell (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 | Semifinals | Final | Final | Final | Final |
| 1 | Blaž Kavčič | 7$^7$ | 5 | | | | | |
| 3 | Wang Yeu-tzuoo | 6$^4$ | 2$^r$ | | | | | |
| 3 | Wang Yeu-tzuoo | 6$^4$ | 2$^r$ | | 1 | Blaž Kavčič | 6 | 6 |
| | | | | | | Jeong Suk-young | 3 | 1 |
| | Jeong Suk-young | 7$^9$ | 3 | 5 | | Jeong Suk-young | 3 | 1 |
| 2 | Matthew Ebden | 6$^7$ | 6 | 4$^r$ | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | B Kavčič | 7 | 6 | | | | | | | | | | | | | | |
| | J-w Na | 5 | 1 | | 1 | B Kavčič | 6 | 2 | | | | | | | | | |
| LL | Punn Bodhidatta | 1 | 4 | | | T Matsui | 4 | 1$^r$ | | | | | | | | | |
| | T Matsui | 6 | 6 | | | | | | | 1 | B Kavčič | 6 | 7 | | | | |
| | A Kudryavtsev | 2 | 7 | 7$^8$ | | | | | | | A Kudryavtsev | 3 | 5 | | | | |
| | I Klec | 6 | 5 | 6$^6$ | | A Kudryavtsev | 6 | 6 | | | | | | | | | |
| WC | K Wachiramanowong | 7$^{10}$ | 6 | | WC | K Wachiramanowong | 4 | 2 | | | | | | | | | |
| LL | S Fayziev | 6$^8$ | 1 | | | | | | | | | | | 1 | B Kavčič | 7$^7$ | 5 |
| 3 | J Wang | 6 | 6 | | | | | | | | | | | 3 | J Wang | 6$^4$ | 2$^r$ |
| Q | W Trongcharoenchaikul | 2 | 2 | | 3 | J Wang | 6 | 5 | 6 | | | | | | | | |
| WC | Chayanon Kaewsuto | 1 | 4 | | Q | T Hochwalt | 2 | 7 | 2 | | | | | | | | |
| Q | Tyler Hochwalt | 6 | 6 | | | | | | | 3 | J Wang | 6 | 6 | | | | |
| | J Statham | 6 | 3 | 7 | | | | | | 6 | M Reid | 3 | 0 | | | | |
| | N Pauffley | 4 | 6 | 1 | | J Statham | 6$^2$ | 2 | | | | | | | | | |
| Q | T Ismailov | 2 | 1 | | 6 | M Reid | 7$^7$ | 6 | | | | | | | | | |
| 6 | M Reid | 6 | 6 | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 8 | B Mitchell | 6 | 6 | | | | | | | | | | | | | | |
| | Shuichi Sekiguchi | 4 | 0 | | 8 | B Mitchell | 2 | 1 | | | | | | | | | |
| | S-Y Jeong | 6 | 6 | | | S-Y Jeong | 6 | 6 | | | | | | | | | |
| WC | W Sornbutnark | 2 | 2 | | | | | | | S-Y Jeong | 6 | 6 | | | | | |
| | Y Uchiyama | 3 | 6 | 7$^7$ | | | | | 4 | Y Sugita | 1 | 3 | | | | | |
| | L-c Huang | 6 | 0 | 6$^3$ | | Y Uchiyama | 1 | 3 | | | | | | | | | |
| Q | Karunuday Singh | 5 | 3 | | 4 | Y Sugita | 6 | 6 | | | | | | | | | |
| 4 | Y Sugita | 7 | 6 | | | | | | | | | | | S-Y Jeong | 7$^9$ | 3 | 5 |
| 5 | H Moriya | 6 | 6 | | | | | | | | | | 2 | M Ebden | 6$^7$ | 6 | 4$^r$ |
| WC | Phassawit Burapharitta | 4 | 4 | | 5 | H Moriya | 6 | 6 | | | | | | | | | |
| | Kim Cheong-Eui | 6 | 3 | 6$^1$ | | T Chen | 3 | 3 | | | | | | | | | |
| | T Chen | 4 | 6 | 7$^7$ | | | | | 5 | H Moriya | 5 | 3 | | | | | |
| | A Bolt | 2 | 6$^5$ | | | | | | 2 | M Ebden | 7 | 6 | | | | | |
| | H Kondo | 6 | 7$^7$ | | | H Kondo | 3 | 0 | | | | | | | | | |
| | J-S Nam | 3 | 5 | | 2 | M Ebden | 6 | 6 | | | | | | | | | |
| 2 | M Ebden | 6 | 7 | | | | | | | | | | | | | | |