# 2012 Green World ATP Challenger – Singles

Go Soeda successfully defended his title, defeating Malek Jaziri 6–1, 3–6, 7–5 in the final.

## Seeds

* Go Soeda (champion)
* Malek Jaziri (finals)
* Danai Udomchoke (first round)
* Yang Tsung-hua (second round)
* Amir Weintraub (quarterfinals)
* Jimmy Wang (quarterfinals)
* Benjamin Mitchell (quarterfinals)
* Harri Heliövaara (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 | Final |
| 1 | Go Soeda | 7 | 6 | | | | | |
| | Kamil Čapkovič | 5 | 3 | | | | | |
| | Kamil Čapkovič | 5 | 3 | 1 | Go Soeda | 6 | 3 | 7 |
| | | | | 2 | Malek Jaziri | 1 | 6 | 5 |
| | Denys Molchanov | 1 | 0$^r$ | 2 | Malek Jaziri | 1 | 6 | 5 |
| 2 | Malek Jaziri | 6 | 1 | | | | | |

### 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 | G Soeda | 6 | 6 | | | | | | | | | | | | | | |
| | V Vardhan | 4 | 2 | | 1 | G Soeda | 7$^7$ | 6 | | | | | | | | | |
| | S Groth | 6 | 6 | | | S Groth | 6$^3$ | 3 | | | | | | | | | |
| | Enrico Becuzzi | 0 | 2 | | | | | | | 1 | G Soeda | 6 | 7 | | | | |
| | K Kim | 7$^7$ | 6 | | | | | | | 7 | B Mitchell | 3 | 5 | | | | |
| Q | C Rungkat | 6$^3$ | 0 | | | K Kim | 7$^7$ | 3 | 4 | | | | | | | | |
| | D Sharan | 3 | 6 | 1 | 7 | B Mitchell | 6$^1$ | 6 | 6 | | | | | | | | |
| 7 | B Mitchell | 6 | 4 | 6 | | | | | | | | | | 1 | G Soeda | 7 | 6 |
| 4 | T-h Yang | 6 | 7 | | | | | | | | | | | | K Čapkovič | 5 | 3 |
| Q | Y Bai | 3 | 5 | | 4 | T-h Yang | 2 | 0 | | | | | | | | | |
| | R Ghedin | 7 | 2 | 4 | | K Čapkovič | 6 | 6 | | | | | | | | | |
| | K Čapkovič | 5 | 6 | 6 | | | | | | | K Čapkovič | 7$^7$ | 6 | | | | |
| | S Rieschick | 3 | 6 | 7 | | | | | | 5 | A Weintraub | 6$^4$ | 0 | | | | |
| | Hiroki Moriya | 6 | 2 | 5 | | S Rieschick | 6$^4$ | 4 | | | | | | | | | |
| WC | Wang Hufu | 4 | 0 | | 5 | A Weintraub | 7$^7$ | 6 | | | | | | | | | |
| 5 | A Weintraub | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 8 | H Heliövaara | 6 | 6 | | | | | | | | | | | | | | |
| | T Chen | 2 | 4 | | 8 | H Heliövaara | 5 | 5 | | | | | | | | | |
| Q | Feng Nian | 4 | 2 | | | D Molchanov | 7 | 7 | | | | | | | | | |
| | D Molchanov | 6 | 6 | | | | | | | D Molchanov | 4 | 7$^8$ | 7$^7$ | | | | |
| | R Klaasen | 1$^r$ | | | | | | | | Z Zhang | 6 | 6$^6$ | 6$^4$ | | | | |
| | Z Zhang | 6 | | | | Z Zhang | 7 | 7 | | | | | | | | | |
| | T Matsui | 1 | 6 | 6 | | T Matsui | 5 | 5 | | | | | | | | | |
| 3 | D Udomchoke | 6 | 4 | 4 | | | | | | | | | | | D Molchanov | 1 | 0$^r$ |
| 6 | J Wang | 5 | 6 | 6 | | | | | | | | | | 2 | M Jaziri | 6 | 1 |
| | D Yoo | 7 | 2 | 2 | 6 | J Wang | 7 | 7 | | | | | | | | | |
| WC | Ma Ya-nan | 3 | 5 | | | S-y Jeong | 5 | 5 | | | | | | | | | |
| | S-y Jeong | 6 | 7 | | | | | | 6 | J Wang | 2 | 6$^3$ | | | | | |
| Q | Li Yu Cheng | 7$^7$ | 6 | | | | | | 2 | M Jaziri | 6 | 7$^7$ | | | | | |
| WC | Feng He | 6$^3$ | 2 | | Q | Li Yu Cheng | 2 | 2 | | | | | | | | | |
| WC | Chang Yu | 4 | 2 | | 2 | M Jaziri | 6 | 6 | | | | | | | | | |
| 2 | M Jaziri | 6 | 6 | | | | | | | | | | | | | | |