# 2013 Open de Rennes – Singles

Kenny de Schepper was the defending champion, but lost to Nicolas Mahut in the final 6–3, 7–6$^{(7–3)}$.

## Seeds

* Kenny de Schepper (final)
* Nicolas Mahut (champion)
* Guillaume Rufin (first round)
* Jesse Huta Galung (first round)
* Jan Hájek (second round)
* Marc Gicquel (semifinals)
* Andrej Martin (quarterfinals)
* Marius Copil (second 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 |
| 1/WC | Kenny de Schepper | 4 | 7$^7$ | 6 | | | | |
| | Maxime Teixeira | 6 | 6$^5$ | 2 | | | | |
| | Maxime Teixeira | 6 | 6$^5$ | 2 | 1/WC | Kenny de Schepper | 3 | 6$^3$ |
| | | | | | 2/WC | Nicolas Mahut | 6 | 7$^7$ |
| 6 | Marc Gicquel | 3 | 4 | | 2/WC | Nicolas Mahut | 6 | 7$^7$ |
| 2/WC | Nicolas Mahut | 6 | 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 | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1/WC | K de Schepper | 6 | 4 | 6 | | | | | | | | | | | | | | |
| | F Serra | 1 | 6 | 3 | 1/WC | K de Schepper | 4 | 6 | 7$^{11}$ | | | | | | | | | |
| | P-H Herbert | 6$^6$ | 3 | | Q | B Phau | 6 | 3 | 6$^9$ | | | | | | | | | |
| Q | B Phau | 7$^8$ | 6 | | | | | | | 1/WC | K de Schepper | 6 | 6 | | | | | |
| Q | K Coppejans | 6 | 6$^3$ | 6 | | | | | | Q | K Coppejans | 0 | 3 | | | | | |
| Q | J Zopp | 2 | 7$^7$ | 3 | Q | K Coppejans | 6 | 6 | | | | | | | | | | |
| Q | C Lestienne | 2 | 1 | | 5 | J Hájek | 1 | 1 | | | | | | | | | | |
| 5 | J Hájek | 6 | 6 | | | | | | | | | | | 1/WC | K de Schepper | 4 | 7$^7$ | 6 |
| 4 | J Huta Galung | 6 | 6$^5$ | 3 | | | | | | | | | | | M Teixeira | 6 | 6$^5$ | 2 |
| | M Teixeira | 3 | 7$^7$ | 6 | | M Teixeira | 6 | 6 | | | | | | | | | | |
| | M Bašić | 6$^5$ | 4 | | | M Fischer | 1 | 3 | | | | | | | | | | |
| | M Fischer | 7$^7$ | 6 | | | | | | | | M Teixeira | 6 | 6 | | | | | |
| | F Dancevic | 7$^8$ | 6$^3$ | 0 | | | | | | 7 | A Martin | 4 | 3 | | | | | |
| | F Cipolla | 6$^6$ | 7$^7$ | 6 | | F Cipolla | 1 | 4 | | | | | | | | | | |
| | A Menéndez-Maceiras | 6$^3$ | 3 | | 7 | A Martin | 6 | 6 | | | | | | | | | | |
| 7 | A Martin | 7$^7$ | 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 |
| 6 | M Gicquel | 6 | 6 | | | | | | | | | | | | | | | |
| | D Thiem | 4 | 3 | | 6 | M Gicquel | 6 | 6 | | | | | | | | | | |
| | H Laaksonen | 4 | 2 | | | M Viola | 2 | 4 | | | | | | | | | | |
| | M Viola | 6 | 6 | | | | | | | 6 | M Gicquel | 4 | 6 | 6 | | | | |
| | D Guez | 4 | 4 | | | | | | | | M Berrer | 6 | 2 | 2 | | | | |
| | T Schoorel | 6 | 6 | | | T Schoorel | 3 | 4 | | | | | | | | | | |
| | M Berrer | 6 | 7$^8$ | | | M Berrer | 6 | 6 | | | | | | | | | | |
| 3/WC | G Rufin | 2 | 6$^6$ | | | | | | | | | | | | 6 | M Gicquel | 3 | 4 |
| 8 | M Copil | 6 | 6 | | | | | | | | | | | | 2/WC | N Mahut | 6 | 6 |
| PR | A Beck | 3 | 3 | | 8 | M Copil | 6$^2$ | 7$^7$ | 2 | | | | | | | | | |
| | D Brown | 3 | 6$^5$ | | WC | J Ouanna | 7$^7$ | 6$^3$ | 6 | | | | | | | | | |
| WC | J Ouanna | 6 | 7$^7$ | | | | | | | WC | J Ouanna | 1 | 6 | 5 | | | | |
| | N Gombos | 7$^7$ | 7 | | | | | | | 2/WC | N Mahut | 6 | 2 | 7 | | | | |
| | I Marchenko | 6$^5$ | 5 | | | N Gombos | 2 | 4 | | | | | | | | | | |
| | R Bemelmans | 3 | 7 | 6$^3$ | 2/WC | N Mahut | 6 | 6 | | | | | | | | | | |
| 2/WC | N Mahut | 6 | 5 | 7$^7$ | | | | | | | | | | | | | | |