# 2012 Shanghai Challenger – Singles

Cedrik-Marcel Stebe was the defending champion but decided not to participate. Lu Yen-hsun defeated Peter Gojowczyk 7–5, 6–0 in the final to win the tournament.

## Seeds

* Lu Yen-hsun (champion)
* Tatsuma Ito (second round)
* Dudi Sela (first round)
* Yūichi Sugita (semifinals)
* Zhang Ze (quarterfinals)
* Yuki Bhambri (second round)
* Amir Weintraub (second round)
* Wu Di (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 | Lu Yen-hsun | 6 | 6 | | | | | |
| 4 | Yūichi Sugita | 4 | 0 | | | | | |
| 4 | Yūichi Sugita | 4 | 0 | | 1 | Lu Yen-hsun | 7 | 6 |
| | | | | | | Peter Gojowczyk | 5 | 0 |
| | Peter Gojowczyk | 5 | 7$^7$ | 6 | | Peter Gojowczyk | 5 | 0 |
| | Michael Yani | 7 | 6$^5$ | 4 | | | | |

### 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 | | | | | | | | | | | | | | |
| | Stefan Seifert | 2 | 0 | | 1 | Y-h Lu | 7 | 6 | | | | | | | | | |
| Q | J Statham | 3 | 7$^8$ | 7$^7$ | Q | J Statham | 5 | 1 | | | | | | | | | |
| | T-h Yang | 6 | 6$^6$ | 6$^5$ | | | | | | 1 | Y-h Lu | 6 | 6 | | | | |
| WC | Z Li | 4 | 2 | | | | | | | Q | S Singh | 2 | 3 | | | | |
| Q | S Singh | 6 | 6 | | Q | S Singh | 7$^7$ | 1 | 6 | | | | | | | | |
| | M Reid | 6$^5$ | 4 | | 6 | Y Bhambri | 6$^4$ | 6 | 2 | | | | | | | | |
| 6 | Y Bhambri | 7$^7$ | 6 | | | | | | | | | | | 1 | Y-h Lu | 6 | 6 |
| 4 | Y Sugita | 6 | 6 | | | | | | | | | | | 4 | Y Sugita | 4 | 0 |
| | D Molchanov | 2 | 1 | | 4 | Y Sugita | 6 | 5 | 6 | | | | | | | | |
| SE | C Rungkat | 6 | 7 | | SE | C Rungkat | 1 | 7 | 2 | | | | | | | | |
| WC | Wang Chieh-fu | 4 | 5 | | | | | | | 4 | Y Sugita | 6 | 6 | | | | |
| WC | Chang Yu | 7$^{14}$ | 6 | | | | | | | 5 | Z Zhang | 1 | 3 | | | | |
| | T Chen | 6$^{12}$ | 3 | | WC | Chang Yu | 4 | 4 | | | | | | | | | |
| Q | A Dupuis | 3 | 1 | | 5 | Z Zhang | 6 | 6 | | | | | | | | | |
| 5 | Z Zhang | 6 | 6 | | | | | | | | | | | | | | |

### 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 |
| 7 | A Weintraub | 6 | 6 | | | | | | | | | | | | | | |
| WC | Ouyang Bowen | 3 | 2 | | 7 | A Weintraub | 6$^3$ | 4 | | | | | | | | | |
| | J Millman | 2 | 6 | 6 | | J Millman | 7$^7$ | 6 | | | | | | | | | |
| SE | M Gong | 6 | 4 | 1 | | | | | | J Millman | 2 | 7$^7$ | 2 | | | | |
| | P Gojowczyk | 6 | 6 | | | | | | | P Gojowczyk | 6 | 6$^4$ | 6 | | | | |
| | M McClune | 4 | 3 | | | P Gojowczyk | 6 | 6 | | | | | | | | | |
| | H Moriya | 4 | 7$^{10}$ | 7 | | H Moriya | 3 | 3 | | | | | | | | | |
| 3 | D Sela | 6 | 6$^4$ | 5 | | | | | | | | | | P Gojowczyk | 5 | 7$^7$ | 6 |
| 8 | D Wu | 4 | 6 | 6 | | | | | | | | | | M Yani | 7 | 6$^5$ | 4 |
| | S Bohli | 6 | 3 | 0 | 8 | D Wu | 6$^4$ | 4 | | | | | | | | | |
| Q | Norbert Gomboš | 2 | 4 | | | J Ward | 7$^7$ | 6 | | | | | | | | | |
| | J Ward | 6 | 6 | | | | | | | J Ward | 5$^r$ | | | | | | |
| | V Vardhan | 5 | 4 | | | | | | | M Yani | 7 | | | | | | |
| | M Yani | 7 | 6 | | | M Yani | 6 | 2 | 6 | | | | | | | | |
| | B Mitchell | 6$^5$ | 7$^7$ | 2 | 2 | T Ito | 4 | 6 | 3 | | | | | | | | |
| 2 | T Ito | 7$^7$ | 6$^5$ | 6 | | | | | | | | | | | | | |