# 2012 Singapore ATP Challenger – Singles

The 2012 Singapore ATP Challenger was a professional tennis tournament played on hard courts. It was the second edition of the tournament which was part of the 2012 ATP Challenger Tour. It took place in Singapore between February 27 and March 4, 2012.
Dmitry Tursunov was the defending champion but decided not to participate. Lu Yen-hsun won the title, defeating Go Soeda 6–3, 6–4 in the final.

## Seeds

* Lu Yen-hsun (champion)
* Go Soeda (final)
* Yūichi Sugita (second round)
* Danai Udomchoke (semifinals)
* Yang Tsung-hua (first round)
* Benjamin Mitchell (first round)
* Harri Heliövaara (first round, retired due to neck pain)
* Amir Weintraub (quarterfinals)

## 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 | Lu Yen-hsun | 6 | 6 | | | | | |
| | Jimmy Wang | 3 | 1 | | | | | |
| | Jimmy Wang | 3 | 1 | | 1 | Lu Yen-hsun | 6 | 6 |
| | | | | | 2 | Go Soeda | 3 | 4 |
| 4 | Danai Udomchoke | 2 | 7$^7$ | 2 | 2 | Go Soeda | 3 | 4 |
| 2 | Go Soeda | 6 | 6$^2$ | 6 | | | | |

### 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 | Y-h Lu | 6 | 6 | | | | | | | | | | | | | | |
| | Michael Look | 3 | 3 | | 1 | Y-h Lu | 6 | 6 | | | | | | | | | |
| WC | L-c Huang | 6 | 5 | 6 | WC | L-c Huang | 0 | 1 | | | | | | | | | |
| | D Molchanov | 3 | 7 | 2 | | | | | | 1 | Y-h Lu | 7$^7$ | 6 | | | | |
| Q | D Sharan | 2 | 2 | | | | | | | | Y Bhambri | 6$^4$ | 4 | | | | |
| | Y Bhambri | 6 | 6 | | | Y Bhambri | 4 | 6 | 7$^8$ | | | | | | | | |
| WC | C Rungkat | 7 | | | WC | C Rungkat | 6 | 3 | 6$^6$ | | | | | | | | |
| 7 | H Heliövaara | 5 | r | | | | | | | | | | | 1 | Y-h Lu | 6 | 6 |
| 3 | Y Sugita | 6 | 6 | | | | | | | | | | | | J Wang | 3 | 1 |
| | Y-k Lim | 3 | 1 | | 3 | Y Sugita | 4 | 4 | | | | | | | | | |
| | S Rieschick | 6 | 6 | | | S Rieschick | 6 | 6 | | | | | | | | | |
| WC | P Siriluethaiwattana | 3 | 3 | | | | | | | | S Rieschick | 3 | 4 | | | | |
| | J Wang | 6 | 6 | | | | | | | | J Wang | 6 | 6 | | | | |
| | T Chen | 0 | 3 | | | J Wang | 7$^7$ | 6 | | | | | | | | | |
| | Z Zhang | 7 | 7 | | | Z Zhang | 6$^4$ | 3 | | | | | | | | | |
| 5 | T-h Yang | 5 | 5 | | | | | | | | | | | | | | |

### 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 | Semifinals |
| 8 | A Weintraub | 6 | 6 | | | | | | | | | | | | | | | |
| WC | V Vardhan | 4 | 2 | | 8 | A Weintraub | 6 | 6 | | | | | | | | | | |
| | R Ghedin | 6$^5$ | 3 | | Q | JR Statham | 3 | 2 | | | | | | | | | | |
| Q | JR Statham | 7$^7$ | 6 | | | | | | 8 | A Weintraub | 6 | 4 | 3 | | | | | |
| Q | Hiroyasu Ehara | 6 | 6 | | | | | | 4 | D Udomchoke | 3 | 6 | 6 | | | | | |
| | H Moriya | 3 | 3 | | Q | H Ehara | 1 | 0 | | | | | | | | | | |
| | J Millman | 6 | 6$^5$ | 2 | 4 | D Udomchoke | 6 | 6 | | | | | | | | | | |
| 4 | D Udomchoke | 3 | 7$^7$ | 6 | | | | | | | | | | 4 | D Udomchoke | 2 | 7$^7$ | 2 |
| 6 | B Mitchell | 4 | 4 | | | | | | | | | | | 2 | G Soeda | 6 | 6$^2$ | 6 |
| | K Čapkovič | 6 | 6 | | | K Čapkovič | 7 | 6 | | | | | | | | | | |
| | É Chvojka | 6 | 7 | | | É Chvojka | 5 | 0 | | | | | | | | | | |
| | T Nieminen | 1 | 5 | | | | | | | K Čapkovič | 5 | 2 | | | | | | |
| Q | H Laaksonen | 6 | 6 | | | | | | 2 | G Soeda | 7 | 6 | | | | | | |
| | Laurent Rochette | 3 | 3 | | Q | H Laaksonen | 3 | 3 | | | | | | | | | | |
| | C Niland | 2 | 1 | | 2 | G Soeda | 6 | 6 | | | | | | | | | | |
| 2 | G Soeda | 6 | 6 | | | | | | | | | | | | | | | |