# 2012 Proton Malaysian Open – Singles

Janko Tipsarević was the defending champion but decided to participate at 2012 PTT Thailand Open instead. Juan Mónaco won the title, beating Julien Benneteau 7–5, 4–6, 6–3 in the final.

## Seeds

* David Ferrer (semifinals)
* Juan Mónaco (champion)
* Kei Nishikori (semifinals)
* Alexandr Dolgopolov (second round)
* Feliciano López (second round)
* Pablo Andújar (first round)
* Julien Benneteau (final)
* Jürgen Melzer (first round, retired because of a left quadriceps injury)

## 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 | Final |
| 1 | David Ferrer | 4 | 1 | | | | | | |
| 7 | Julien Benneteau | 6 | 6 | | | | | | |
| 7 | Julien Benneteau | 6 | 6 | | 7 | Julien Benneteau | 5 | 6 | 3 |
| | | | | | 2 | Juan Mónaco | 7 | 4 | 6 |
| 3 | Kei Nishikori | 2 | 6 | 6$^4$ | 2 | Juan Mónaco | 7 | 4 | 6 |
| 2 | Juan Mónaco | 6 | 2 | 7$^7$ | | | | | |

### Top half

| 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 |
| | | | | 1 | D Ferrer | 6 | 6 | | | | | | | | | | |
| Q | D Inglot | 5 | 3 | | A Bogomolov Jr. | 4 | 2 | | | | | | | | | | |
| | A Bogomolov Jr. | 7 | 6 | | | | | | 1 | D Ferrer | 4 | 6 | 6 | | | | |
| WC | AE Heshaam | 2 | 1 | | | | | | | I Sijsling | 6 | 3 | 4 | | | | |
| | I Sijsling | 6 | 6 | | I Sijsling | 7$^7$ | 7$^7$ | | | | | | | | | | |
| | L Lacko | 3 | 6$^3$ | 5 | F López | 6$^0$ | 6$^2$ | | | | | | | | | | |
| 5 | F López | 6 | 7$^7$ | | | | | | | | | | | 1 | D Ferrer | 4 | 1 |
| | | | | | | | | | | | | | | 7 | J Benneteau | 6 | 6 |
| | | | | 4 | A Dolgopolov | 3 | 6 | 3 | | | | | | | | | |
| | A Falla | 7$^7$ | 4 | | A Falla | 6 | 3 | 6 | | | | | | | | | |
| | R Ram | 6$^4$ | 2$^r$ | | | | | | | A Falla | 2 | 2 | | | | | |
| | M Ebden | 6 | 7$^7$ | | | | | | 7 | J Benneteau | 6 | 6 | | | | | |
| WC | P Davydenko | 0 | 6$^3$ | | M Ebden | 5 | 2 | | | | | | | | | | |
| | C Berlocq | 6$^2$ | 3 | 7 | J Benneteau | 7 | 6 | | | | | | | | | | |
| 7 | J Benneteau | 7$^7$ | 6 | | | | | | | | | | | | | | |

### Bottom half

| 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 |
| 6 | P Andújar | 3 | 2 | | | | | | | | | | | | | | |
| | D Istomin | 6 | 6 | | D Istomin | 5 | 4 | | | | | | | | | | |
| LL | S Singh | 5 | 4 | | N Davydenko | 7 | 6 | | | | | | | | | | |
| | N Davydenko | 7 | 6 | | | | | | | N Davydenko | 4 | r | | | | | |
| Q | J Knowle | 1 | 4 | | | | | | 3 | K Nishikori | 6 | | | | | | |
| | A Ramos | 6 | 6 | | A Ramos | 7$^7$ | 2 | 1 | | | | | | | | | |
| | | | | 3 | K Nishikori | 6$^5$ | 6 | 6 | | | | | | | | | |
| | | | | | | | | | | | | | 3 | K Nishikori | 2 | 6 | 6$^4$ |
| 8 | J Melzer | 4 | 0$^r$ | | | | | | | | | | 2 | J Mónaco | 6 | 2 | 7$^7$ |
| | V Pospisil | 6 | 2 | | V Pospisil | 6 | 7 | | | | | | | | | | |
| Q | M Yani | 6 | 7$^7$ | Q | M Yani | 3 | 5 | | | | | | | | | | |
| | B Baker | 3 | 6$^4$ | | | | | | | V Pospisil | 3 | 4 | | | | | |
| Q | R Ghedin | 3 | 3 | | | | | | 2 | J Mónaco | 6 | 6 | | | | | |
| WC | J Wang | 6 | 6 | WC | J Wang | 4 | 5 | | | | | | | | | | |
| | | | | 2 | J Mónaco | 6 | 7 | | | | | | | | | | |

## Qualifying
### Seeds

* Vasek Pospisil (moved to main draw)
* Michael Yani (qualified)
* Riccardo Ghedin (qualified)
* Christopher Rungkat (second round)
* Sanam Singh (qualifying competition, lucky loser)
* Toshihide Matsui (qualifying competition)
* Nick Lindahl (second round)
* Jun Woong-sun (second round)

### Qualifiers

* Dominic Inglot
* Michael Yani
* Riccardo Ghedin
* Julian Knowle

### Lucky loser

* Sanam Singh

### Draw
#### First qualifier

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition |
| | | | | 1 | Vasek Pospisil | | | | | |
| | | | | | Austin Karosi | w/o | | | | |
| | | | | | | | | Austin Karosi | 2 | 2 |
| | Dominic Inglot | 6 | 6 | | | | | Dominic Inglot | 6 | 6 |
| WC | Ahmed Deedat Abdul Razak | 1 | 4 | | Dominic Inglot | 6 | 6 | | | |
| | | | | 7 | Nick Lindahl | 3 | 4 | | | |

#### Second qualifier

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| | | | | 2 | Michael Yani | 7 | 6 | | | | |
| | | | | WC | Syed Mohd Agil Syed Naguib | 5 | 1 | | | | |
| | | | | | | | | 2 | Michael Yani | 6 | 7$^7$ |
| WC | Colin Wei Ming Wong | 3 | 1 | | | | | 5 | Sanam Singh | 4 | 6$^4$ |
| WC | Si Yew Ming | 6 | 6 | WC | Si Yew Ming | 0 | 1 | | | | |
| | | | | 5 | Sanam Singh | 6 | 6 | | | | |

#### Third qualifier

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| | | | | | 3 | Riccardo Ghedin | 6 | 6 | | | | | |
| | | | | | | Alexander Peya | 2 | 4 | | | | | |
| | | | | | | | | | 3 | Riccardo Ghedin | 4 | 6 | 7$^{10}$ |
| WC | Mohd Assri Merzuki | 2 | 7 | 2 | | | | | | Treat Conrad Huey | 6 | 4 | 6$^8$ |
| | Treat Conrad Huey | 6 | 5 | 6 | | Treat Conrad Huey | 6 | 7$^7$ | | | | | |
| | | | | | 8 | Jun Woong-sun | 3 | 6$^3$ | | | | | |

#### Fourth qualifier

| Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Christopher Rungkat | 3 | 2 | | | | | |
| | Julian Knowle | 6 | 6 | | | | | |
| | Julian Knowle | 6 | 6 | | Julian Knowle | 3 | 6 | 6 |
| | | | | 6 | Toshihide Matsui | 6 | 3 | 4 |
| WC | Bruno Soares | 6$^5$ | 4$^r$ | 6 | Toshihide Matsui | 6 | 3 | 4 |
| 6 | Toshihide Matsui | 7$^7$ | 3 | | | | | |