# 2012 Poznań Open – Singles

Rui Machado was the defending champion but decided not to participate that year. Jerzy Janowicz won the final 6–3, 6–3 against Jonathan Dasnières de Veigy.

## Seeds

* Jerzy Janowicz (champion)
* Éric Prodon (quarterfinals)
* Íñigo Cervantes Huegun (second round, retired due to back injury)
* Guillaume Rufin (first round)
* Jonathan Dasnières de Veigy (final)
* Martín Alund (semifinals)
* Andreas Haider-Maurer (semifinals)
* Arnau Brugués Davi (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 | Jerzy Janowicz | 6 | 5 | 6 | | | | |
| 7 | Andreas Haider-Maurer | 4 | 7 | 4 | | | | |
| 7 | Andreas Haider-Maurer | 4 | 7 | 4 | 1 | Jerzy Janowicz | 6 | 6 |
| | | | | | 5 | Jonathan Dasnières de Veigy | 3 | 3 |
| 6 | Martín Alund | 6$^1$ | 4 | | 5 | Jonathan Dasnières de Veigy | 3 | 3 |
| 5 | Jonathan Dasnières de Veigy | 7$^7$ | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | J Janowicz | 6 | 7$^7$ | | | | | | | | | | | | | | | | |
| WC | Piotr Gadomski | 4 | 6$^4$ | | 1 | J Janowicz | 6 | 6 | | | | | | | | | | | |
| | M Michalička | 6 | 6 | | | M Michalička | 4 | 4 | | | | | | | | | | | |
| | I Sergeyev | 3 | 1 | | | | | | | 1 | J Janowicz | 6 | 6 | | | | | | |
| | J Martí | 6$^3$ | 6 | 7$^7$ | | | | | | 8 | A Brugués Davi | 3 | 4 | | | | | | |
| WC | Maciej Smoła | 7$^7$ | 4 | 6$^3$ | | J Martí | 7$^7$ | 2 | 2 | | | | | | | | | | |
| WC | A Kapaś | 7$^7$ | 6$^3$ | 4 | 8 | A Brugués Davi | 6$^2$ | 6 | 6 | | | | | | | | | | |
| 8 | A Brugués Davi | 6$^2$ | 7$^7$ | 6 | | | | | | | | | | | 1 | J Janowicz | 6 | 5 | 6 |
| 4 | G Rufin | 6$^4$ | 6 | 5 | | | | | | | | | | | 7 | A Haider-Maurer | 4 | 7 | 4 |
| WC | M Przysiężny | 7$^7$ | 3 | 7 | WC | M Przysiężny | 0 | 0$^r$ | | | | | | | | | | | |
| | J Mertl | 6 | 3 | 4 | | U Ignatik | 6 | 3 | | | | | | | | | | | |
| | U Ignatik | 4 | 6 | 6 | | | | | | | U Ignatik | 6 | 4 | 6$^5$ | | | | | |
| | V Crivoi | 7$^7$ | 5 | 1 | | | | | | 7 | A Haider-Maurer | 2 | 6 | 7$^7$ | | | | | |
| | S Gutiérrez Ferrol | 6$^5$ | 7 | 6 | | S Gutiérrez Ferrol | 3 | 2 | | | | | | | | | | | |
| | G Granollers | 4 | 3 | | 7 | A Haider-Maurer | 6 | 6 | | | | | | | | | | | |
| 7 | A Haider-Maurer | 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 |
| 6 | M Alund | 6 | 6$^3$ | 7 | | | | | | | | | | | | | |
| | H Podlipnik | 2 | 7$^7$ | 5 | 6 | M Alund | 6 | 6 | | | | | | | | | |
| | A Michon | 6 | 7 | | | A Michon | 4 | 4 | | | | | | | | | |
| | A Martin | 3 | 5 | | | | | | 6 | M Alund | 5 | 6 | 6 | | | | |
| Q | M Gawron | 4 | 6 | 6 | | | | | Q | M Gawron | 7 | 4 | 4 | | | | |
| | A Balázs | 6 | 0 | 2 | Q | M Gawron | 7 | 3 | | | | | | | | | |
| Q | P Rosenholm | 1$^r$ | | | 3 | I Cervantes Huegun | 5 | 0$^r$ | | | | | | | | | |
| 3 | I Cervantes Huegun | 6 | | | | | | | | | | | | 6 | M Alund | 6$^1$ | 4 |
| 5 | J Dasnières de Veigy | 7 | 3 | 6 | | | | | | | | | | 5 | J Dasnières de Veigy | 7$^7$ | 6 |
| | Enrico Burzi | 5 | 6 | 3 | 5 | J Dasnières de Veigy | 7$^7$ | 6 | | | | | | | | | |
| | G Clezar | 4 | 3 | | | D Lojda | 6$^5$ | 2 | | | | | | | | | |
| | D Lojda | 6 | 6 | | | | | | 5 | J Dasnières de Veigy | 6 | 7 | | | | | |
| Q | G Panfil | 2 | 6$^2$ | | | | | | 2 | É Prodon | 4 | 5 | | | | | |
| | B Westerhof | 6 | 7$^7$ | | | B Westerhof | 4 | 3 | | | | | | | | | |
| Q | M Ryderstedt | 5 | 4 | | 2 | É Prodon | 6 | 6 | | | | | | | | | |
| 2 | É Prodon | 7 | 6 | | | | | | | | | | | | | | |