# 2012 Prosperita Open – Singles

Stéphane Robert was the defending champion but decided not to participate. Jonathan Dasnières de Veigy won the title by defeating Jan Hájek 7–5, 6–2 in the final.

## Seeds

* Jan Hájek (final)
* Teymuraz Gabashvili (second round)
* Guillaume Rufin (semifinals)
* Jan Mertl (second round)
* Simone Vagnozzi (semifinals)
* Yannick Mertens (second round)
* Dušan Lojda (quarterfinals)
* Mathieu Rodrigues (first 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 |
| 1 | Jan Hájek | 6 | 6 | | | | |
| 3 | Guillaume Rufin | 3 | 4 | | | | |
| 3 | Guillaume Rufin | 3 | 4 | 1 | Jan Hájek | 5 | 2 |
| | | | | | Jonathan Dasnières de Veigy | 7 | 6 |
| 5 | Simone Vagnozzi | 2 | 5 | | Jonathan Dasnières de Veigy | 7 | 6 |
| | Jonathan Dasnières de Veigy | 6 | 7 | | | | |

### 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 | J Hájek | 6 | 6 | | | | | | | | | | | | | | |
| | B Mitchell | 4 | 3 | | 1 | J Hájek | 6 | 7 | | | | | | | | | |
| WC | J Veselý | 3 | 2 | | | A Begemann | 2 | 5 | | | | | | | | | |
| | A Begemann | 6 | 6 | | | | | | | 1 | J Hájek | 6 | 6 | | | | |
| WC | Jakub Lustyk | 3 | 2 | | | | | | | | Enrico Burzi | 4 | 2 | | | | |
| | Enrico Burzi | 6 | 6 | | | Enrico Burzi | 7 | 3 | 7 | | | | | | | | |
| WC | G Panfil | 5 | 3 | | 6 | Y Mertens | 5 | 6 | 5 | | | | | | | | |
| 6 | Y Mertens | 7 | 6 | | | | | | | | | | | 1 | J Hájek | 6 | 6 |
| 3 | G Rufin | 5 | 7 | 6 | | | | | | | | | | 3 | G Rufin | 3 | 4 |
| LL | M Gawron | 7 | 5 | 3 | 3 | G Rufin | 6 | 6 | | | | | | | | | |
| | K Čapkovič | 6 | 4 | 4 | | R Albot | 4 | 2 | | | | | | | | | |
| | R Albot | 4 | 6 | 6 | | | | | | 3 | G Rufin | 6 | 7$^7$ | | | | |
| Q | M Michalička | 5 | 2 | | | | | | | 7 | D Lojda | 0 | 6$^4$ | | | | |
| | T Fabbiano | 7 | 6 | | | T Fabbiano | 4 | 6$^2$ | | | | | | | | | |
| | Julien Obry | 5 | 0 | | 7 | D Lojda | 6 | 7$^7$ | | | | | | | | | |
| 7 | D Lojda | 7 | 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 |
| 5 | S Vagnozzi | 6 | 6 | | | | | | | | | | | | | | |
| | É Chvojka | 3 | 3 | | 5 | S Vagnozzi | 6 | 6 | | | | | | | | | |
| WC | A Pavlásek | 5 | 3 | | Q | G Žemlja | 4 | 3 | | | | | | | | | |
| Q | G Žemlja | 7 | 6 | | | | | | 5 | S Vagnozzi | 7 | 6 | | | | | |
| | A Michon | 0 | 6$^5$ | | | | | | | M Marrai | 5 | 3 | | | | | |
| | M Marrai | 6 | 7$^7$ | | | M Marrai | 7$^7$ | 6 | | | | | | | | | |
| | P Oswald | 2 | 5 | | 4 | J Mertl | 6$^5$ | 3 | | | | | | | | | |
| 4 | J Mertl | 6 | 7 | | | | | | | | | | | 5 | S Vagnozzi | 2 | 5 |
| 8 | M Rodrigues | 5 | 1 | | | | | | | | | | | | J Dasnières de Veigy | 6 | 7 |
| | J Dasnières de Veigy | 7 | 6 | | | J Dasnières de Veigy | 6 | 6 | | | | | | | | | |
| PR | F Škugor | 3 | 2 | | | G Granollers | 3 | 1 | | | | | | | | | |
| | G Granollers | 6 | 6 | | | | | | | J Dasnières de Veigy | 3 | 6 | 6 | | | | |
| Q | A Martin | 3 | 6 | 6 | | | | | Q | A Martin | 6 | 3 | 3 | | | | |
| | M Reid | 6 | 3 | 2 | Q | A Martin | 6 | 6 | | | | | | | | | |
| Q | M Neuchrist | 4 | 6$^5$ | | 2 | T Gabashvili | 4 | 0 | | | | | | | | | |
| 2 | T Gabashvili | 6 | 7$^7$ | | | | | | | | | | | | | | |