# 2012 Geneva Open Challenger – Singles

Malek Jaziri was the defending champion but was defeated in the second round by Henri Laaksonen. Marc Gicquel won the title, defeating Matthias Bachinger 3–6, 6–3, 6–4 in the final.

## Seeds

* Tobias Kamke (first round)
* Lukáš Rosol (first round)
* Aljaž Bedene (first round)
* Björn Phau (second round)
* Malek Jaziri (second round)
* Dudi Sela (first round)
* Olivier Rochus (quarterfinals)
* Vasek Pospisil (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 | Semifinals | Final | Final | Final | Final | Final |
| | Matthias Bachinger | 7 | 6 | | | | | | |
| WC | Henri Laaksonen | 5 | 1 | | | | | | |
| WC | Henri Laaksonen | 5 | 1 | | | Matthias Bachinger | 6 | 3 | 4 |
| | | | | | Alt | Marc Gicquel | 3 | 6 | 6 |
| Alt | Marc Gicquel | 7$^7$ | 2 | 6 | Alt | Marc Gicquel | 3 | 6 | 6 |
| | Marius Copil | 6$^4$ | 6 | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | T Kamke | 2 | 6$^1$ | | | | | | | | | | | | | | | |
| | M Bachinger | 6 | 7$^7$ | | | M Bachinger | 4 | 6 | 6 | | | | | | | | | |
| Alt | D Lajović | 2 | 6 | 3 | | F Delbonis | 6 | 3 | 4 | | | | | | | | | |
| | F Delbonis | 6 | 4 | 6 | | | | | | | M Bachinger | 7$^7$ | 4 | 7$^7$ | | | | |
| | A Golubev | 4 | 2 | | | | | | | 7 | O Rochus | 6$^5$ | 6 | 6$^3$ | | | | |
| | I Sergeyev | 6 | 6 | | | I Sergeyev | 1 | 3 | | | | | | | | | | |
| WC | S Ehrat | 7 | 6$^7$ | 4 | 7 | O Rochus | 6 | 6 | | | | | | | | | | |
| 7 | O Rochus | 5 | 7$^9$ | 6 | | | | | | | | | | | | M Bachinger | 7 | 6 |
| 4 | B Phau | 6 | 7$^{10}$ | | | | | | | | | | | | WC | H Laaksonen | 5 | 1 |
| | S Bubka | 2 | 6$^8$ | | 4 | B Phau | 6 | 2 | 2 | | | | | | | | | |
| | J Hájek | 7 | 5 | 0$^r$ | | I Marchenko | 1 | 6 | 6 | | | | | | | | | |
| | I Marchenko | 5 | 6 | 2 | | | | | | | I Marchenko | 3 | 7$^7$ | 5 | | | | |
| | R de Voest | 7$^{10}$ | 6$^5$ | 6$^6$ | | | | | | WC | H Laaksonen | 6 | 6$^4$ | 7 | | | | |
| WC | H Laaksonen | 6$^8$ | 7$^7$ | 7$^8$ | WC | H Laaksonen | 7 | 7$^{10}$ | | | | | | | | | | |
| Q | S Stakhovskiy | 4 | 6 | 4 | 5 | M Jaziri | 5 | 6$^8$ | | | | | | | | | | |
| 5 | M Jaziri | 6 | 4 | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 8 | V Pospisil | 7$^7$ | 2 | 2 | | | | | | | | | | | | | | | |
| Q | G Burquier | 6$^4$ | 6 | 6 | Q | G Burquier | 3 | 6 | 5 | | | | | | | | | | |
| Q | J Eysseric | 7 | 6 | | Q | J Eysseric | 6 | 3 | 7 | | | | | | | | | | |
| | M Chiudinelli | 5 | 1 | | | | | | | Q | J Eysseric | 2 | 4 | | | | | | |
| | E Donskoy | 7$^7$ | 7$^7$ | | | | | | | Alt | M Gicquel | 6 | 6 | | | | | | |
| Q | Adrien Bossel | 6$^1$ | 6$^3$ | | | E Donskoy | 7 | 6$^3$ | 4 | | | | | | | | | | |
| Alt | M Gicquel | 6 | 7$^7$ | | Alt | M Gicquel | 5 | 7$^7$ | 6 | | | | | | | | | | |
| 3 | A Bedene | 3 | 6$^2$ | | | | | | | | | | | | Alt | M Gicquel | 7$^7$ | 2 | 6 |
| 6 | D Sela | 3 | 1 | | | | | | | | | | | | | M Copil | 6$^4$ | 6 | 4 |
| | K de Schepper | 6 | 6 | | | K de Schepper | 4 | 6 | 6$^4$ | | | | | | | | | | |
| WC | S Bohli | 6 | 6 | | WC | S Bohli | 6 | 3 | 7$^7$ | | | | | | | | | | |
| | T Alves | 3 | 4 | | | | | | | WC | S Bohli | 7 | 4 | 4 | | | | | |
| WC | Alexander Rumyantsev | 2 | 2 | | | | | | | | M Copil | 5 | 6 | 6 | | | | | |
| | I Kunitsyn | 6 | 6 | | | I Kunitsyn | 4 | 5 | | | | | | | | | | | |
| | M Copil | 4 | 7$^7$ | 7$^7$ | | M Copil | 6 | 7 | | | | | | | | | | | |
| 2 | L Rosol | 6 | 6$^3$ | 6$^1$ | | | | | | | | | | | | | | | |