# 2012 Open de Rennes – Singles

Julien Benneteau was the defending champion but decided not to participate. Kenny de Schepper won the title, defeating Illya Marchenko 7–6$^{(7–4)}$, 6–2 in the final.

## Seeds

* Aljaž Bedene (first round)
* Andreas Haider-Maurer (first round)
* Ruben Bemelmans (first round)
* Olivier Rochus (semifinals)
* Michaël Llodra (second round)
* Matthias Bachinger (second round)
* Florent Serra (second round)
* Josselin Ouanna (withdrew because of a right ischiotibial injury)
* Federico Delbonis (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 |
| | Kenny de Schepper | 7$^7$ | 6 | | | | | |
| | Maxime Authom | 6$^3$ | 3 | | | | | |
| | Maxime Authom | 6$^3$ | 3 | | | Kenny de Schepper | 7$^7$ | 6 |
| | | | | | Q | Illya Marchenko | 6$^4$ | 2 |
| 4 | Olivier Rochus | 6 | 3 | 5 | Q | Illya Marchenko | 6$^4$ | 2 |
| Q | Illya Marchenko | 1 | 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 |
| 1 | A Bedene | 7$^7$ | 3 | 4 | | | | | | | | | | | | |
| LL | M Fischer | 6$^5$ | 6 | 6 | LL | M Fischer | 6 | 2 | 7$^7$ | | | | | | | |
| | P-H Herbert | 6 | 7$^7$ | | | P-H Herbert | 3 | 6 | 6$^2$ | | | | | | | |
| | J Dasnières de Veigy | 3 | 6$^3$ | | | | | | | LL | M Fischer | 3 | 4 | | | |
| | A Olivetti | 6$^5$ | 2 | | | | | | | | K de Schepper | 6 | 6 | | | |
| | K de Schepper | 7$^7$ | 6 | | | K de Schepper | 6 | 6 | | | | | | | | |
| | P Torebko | 3 | 4 | | 7 | F Serra | 3 | 4 | | | | | | | | |
| 7 | F Serra | 6 | 6 | | | | | | | | | | | K de Schepper | 7$^7$ | 6 |
| 3 | R Bemelmans | 6 | 6$^3$ | 3 | | | | | | | | | | M Authom | 6$^3$ | 3 |
| WC | G Burquier | 1 | 7$^7$ | 6 | WC | G Burquier | 4 | 4 | | | | | | | | |
| Q | F Martin | 3 | 4 | | Q | D Thiem | 6 | 6 | | | | | | | | |
| Q | D Thiem | 6 | 6 | | | | | | | Q | D Thiem | 5 | 2 | | | |
| | M Authom | 6 | 6 | | | | | | | | M Authom | 7 | 6 | | | |
| Q | L Grigelis | 4 | 3 | | | M Authom | 7$^7$ | 7$^7$ | | | | | | | | |
| | J Baker | 4 | 5 | | 5 | M Llodra | 6$^4$ | 6$^4$ | | | | | | | | |
| 5 | M Llodra | 6 | 7 | | | | | | | | | | | | | |

### 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 |
| 6 | M Bachinger | 6 | 6 | | | | | | | | | | | | | | | | |
| WC | Julien Obry | 1 | 2 | | 6 | M Bachinger | 5 | 4 | | | | | | | | | | | |
| | M Przysiężny | 6$^4$ | 6 | 3 | WC | M Gicquel | 7 | 6 | | | | | | | | | | | |
| WC | M Gicquel | 7$^7$ | 4 | 6 | | | | | | WC | M Gicquel | 6 | 1 | 6$^2$ | | | | | |
| WC | M Teixeira | 7$^7$ | 6 | | | | | | | 4 | O Rochus | 3 | 6 | 7$^7$ | | | | | |
| | V Millot | 6$^5$ | 4 | | WC | M Teixeira | 2 | 1 | | | | | | | | | | | |
| | A Mannarino | 4 | 4 | | 4 | O Rochus | 6 | 6 | | | | | | | | | | | |
| 4 | O Rochus | 6 | 6 | | | | | | | | | | | | 4 | O Rochus | 6 | 3 | 5 |
| 9 | F Delbonis | 1 | 6$^3$ | | | | | | | | | | | | Q | I Marchenko | 1 | 6 | 7 |
| | Y Mertens | 6 | 7$^7$ | | | Y Mertens | 4 | 2 | | | | | | | | | | | |
| PR | F Krajinović | 7$^7$ | 4 | 3 | PR | C-A Brézac | 6 | 6 | | | | | | | | | | | |
| PR | Charles-Antoine Brézac | 6$^5$ | 6 | 6 | | | | | | PR | C-A Brézac | 6$^{10}$ | 3 | | | | | | |
| | N Desein | 6 | 7$^8$ | | | | | | | Q | I Marchenko | 7$^{12}$ | 6 | | | | | | |
| | P Oswald | 2 | 6$^6$ | | | N Desein | 3 | 6 | 2 | | | | | | | | | | |
| Q | I Marchenko | 6 | 6 | | Q | I Marchenko | 6 | 1 | 6 | | | | | | | | | | |
| 2 | A Haider-Maurer | 4 | 4 | | | | | | | | | | | | | | | | |