# 2010 Challenger DCNS de Cherbourg – Singles

Arnaud Clément was the defending champion, but he lost to Nicolas Mahut in the semifinals. Mahut defeated Gilles Müller in the final, 6–4, 6–3.

## Seeds

* Arnaud Clément (semifinals)
* Josselin Ouanna (semifinals)
* Kevin Kim (second round)
* Kristof Vliegen (second round)
* David Guez (first round)
* Jan Hernych (first round)
* Laurent Recouderc (quarterfinals)
* Stéphane Bohli (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 |
| 1/WC | Arnaud Clément | 6$^9$ | 6 | 3 | | | | |
| | Nicolas Mahut | 7$^{11}$ | 2 | 6 | | | | |
| | Nicolas Mahut | 7$^{11}$ | 2 | 6 | | Nicolas Mahut | 6 | 6 |
| | | | | | WC | Gilles Müller | 4 | 3 |
| WC | Gilles Müller | 6 | 6 | | WC | Gilles Müller | 4 | 3 |
| 2 | Josselin Ouanna | 2 | 3 | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1/WC | A Clément | 6 | 5 | 6 | | | | | | | | | | | | | |
| | T Kamke | 1 | 7 | 4 | 1/WC | A Clément | 6 | 7$^7$ | | | | | | | | | |
| | A Stoppini | 5 | 4 | | | J Reister | 3 | 6$^4$ | | | | | | | | | |
| | J Reister | 7 | 6 | | | | | | 1/WC | A Clément | 7 | 6 | | | | | |
| | M Crugnola | 0 | 0 | r | | | | | | É Roger-Vasselin | 5 | 1 | | | | | |
| | L Rosol | 6 | 1 | | | L Rosol | 3 | 1 | | | | | | | | | |
| | É Roger-Vasselin | 6 | 6 | | | É Roger-Vasselin | 6 | 6 | | | | | | | | | |
| 6 | J Hernych | 0 | 3 | | | | | | | | | | 1/WC | A Clément | 6$^9$ | 6 | 3 |
| 3 | K Kim | 6 | 6 | | | | | | | | | | | N Mahut | 7$^{11}$ | 2 | 6 |
| WC | A Michon | 2 | 2 | | 3 | K Kim | 4 | 3 | | | | | | | | | |
| | R Karanušić | 2 | 5 | | | N Mahut | 6 | 6 | | | | | | | | | |
| | N Mahut | 6 | 7 | | | | | | | N Mahut | 6 | | | | | | |
| Q | F Martin | 7$^7$ | 7$^7$ | | | | | | | A Sidorenko | 4 | r | | | | | |
| | R Bemelmans | 6$^4$ | 6$^4$ | | Q | F Martin | 6$^5$ | 1 | | | | | | | | | |
| | A Sidorenko | 6 | 6 | | | A Sidorenko | 7$^7$ | 6 | | | | | | | | | |
| 5 | D Guez | 2 | 3 | | | | | | | | | | | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 8 | S Bohli | 4 | 6 | 5 | | | | | | | | | | | | | |
| | T Ascione | 6 | 2 | 7 | | T Ascione | 5 | 4 | | | | | | | | | |
| | A Begemann | 6 | 5 | 6 | | A Begemann | 7 | 6 | | | | | | | | | |
| Q | A Kudryavtsev | 3 | 7 | 4 | | | | | | | A Begemann | 5 | 4 | | | | |
| WC | G Müller | 7$^7$ | 5 | 7$^7$ | | | | | | WC | G Müller | 7 | 6 | | | | |
| Q | R Jouan | 6$^4$ | 7 | 6$^4$ | WC | G Müller | 7$^8$ | 7$^7$ | | | | | | | | | |
| | A Haider-Maurer | 5 | 5 | | 4 | K Vliegen | 6$^6$ | 6$^5$ | | | | | | | | | |
| 4 | K Vliegen | 7 | 7 | | | | | | | | | | | WC | G Müller | 6 | 6 |
| 7 | L Recouderc | 7$^{12}$ | 7$^7$ | | | | | | | | | | | 2 | J Ouanna | 2 | 3 |
| Q | K Kravchuk | 6$^{10}$ | 6$^3$ | | 7 | L Recouderc | 6 | 6$^1$ | 6 | | | | | | | | |
| WC | J Eysseric | 4 | 5 | | | D Hrbatý | 3 | 7$^7$ | 1 | | | | | | | | |
| | D Hrbatý | 6 | 7 | | | | | | | 7 | L Recouderc | 4 | 4 | | | | |
| | R Sluiter | 6 | 3 | 1 | | | | | | 2 | J Ouanna | 6 | 6 | | | | |
| | N Desein | 4 | 6 | 6 | | N Desein | 7$^7$ | 1 | 4 | | | | | | | | |
| | L Cook | 4 | 2 | | 2 | J Ouanna | 6$^2$ | 6 | 6 | | | | | | | | |
| 2 | J Ouanna | 6 | 6 | | | | | | | | | | | | | | |