# 2017 Challenger La Manche – Singles

Jordan Thompson was the defending champion but chose not to defend his title.
Mathias Bourgue won the title after defeating Maximilian Marterer 6–3, 7–6$^{(7–3)}$ in the final.

## Seeds

* Jérémy Chardy (first round)
* Illya Marchenko (first round)
* Julien Benneteau (semifinals)
* Norbert Gombos (quarterfinals)
* Lee Duck-hee (second round)
* Peter Gojowczyk (quarterfinals)
* Luca Vanni (second round)
* Uladzimir Ignatik (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 |
| | Kenny de Schepper | 6 | 6$^4$ | 3 | | | |
| | Mathias Bourgue | 4 | 7$^7$ | 6 | | | |
| | Mathias Bourgue | 4 | 7$^7$ | 6 | Mathias Bourgue | 6 | 7$^7$ |
| | | | | | Maximilian Marterer | 3 | 6$^3$ |
| 3 | Julien Benneteau | 4 | 7$^9$ | 6$^5$ | Maximilian Marterer | 3 | 6$^3$ |
| | Maximilian Marterer | 6 | 6$^7$ | 7$^7$ | | | |

### 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 Chardy | 6 | 6$^3$ | 6$^5$ | | | | | | | | | | | | | |
| | S Diez | 3 | 7$^7$ | 7$^7$ | | S Diez | 6 | 3 | 2 | | | | | | | | |
| Q | C Moutet | 6 | 3 | 6 | Q | C Moutet | 4 | 6 | 6 | | | | | | | | |
| | Jeremy Jahn | 4 | 6 | 3 | | | | | | Q | C Moutet | 5 | 3 | | | | |
| | S Napolitano | 5 | 0 | | | | | | | | K de Schepper | 7 | 6 | | | | |
| Q | H Nys | 7 | 6 | | Q | H Nys | 4 | 3 | | | | | | | | | |
| | K de Schepper | 6 | 7$^7$ | | | K de Schepper | 6 | 6 | | | | | | | | | |
| 8 | U Ignatik | 3 | 6$^5$ | | | | | | | | | | | K de Schepper | 6 | 6$^4$ | 3 |
| 4 | N Gombos | 6 | 7 | | | | | | | | | | | M Bourgue | 4 | 7$^7$ | 6 |
| | L Giustino | 2 | 5 | | 4 | N Gombos | 7$^7$ | 6 | | | | | | | | | |
| | I Ivashka | 2 | 6 | 6 | | I Ivashka | 6$^3$ | 1 | | | | | | | | | |
| SE | E Corrie | 6 | 4 | 3 | | | | | | 4 | N Gombos | 6$^5$ | 6$^5$ | | | | |
| | M Bourgue | 7$^7$ | 6 | | | | | | | | M Bourgue | 7$^7$ | 7$^7$ | | | | |
| | D Brands | 6$^2$ | 4 | | | M Bourgue | 6 | 6 | | | | | | | | | |
| WC | A Sidorenko | 1 | 4 | | 5 | D-h Lee | 4 | 4 | | | | | | | | | |
| 5 | D-h Lee | 6 | 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 |
| 6 | P Gojowczyk | 6 | 6 | | | | | | | | | | | | | | | | |
| WC | G Blancaneaux | 2 | 4 | | 6 | P Gojowczyk | 6 | 6 | | | | | | | | | | | |
| WC | A Michon | 6 | 7$^{11}$ | | WC | A Michon | 2 | 4 | | | | | | | | | | | |
| Q | D Masur | 4 | 6$^9$ | | | | | | | 6 | P Gojowczyk | 4 | 6 | 4 | | | | | |
| | M Zekić | 3 | 4 | | | | | | | 3 | J Benneteau | 6 | 1 | 6 | | | | | |
| | A Menéndez-Maceiras | 6 | 6 | | | A Menéndez-Maceiras | 7$^7$ | 2 | 3 | | | | | | | | | | |
| Q | F Krajinović | 5 | 3 | | 3 | J Benneteau | 6$^5$ | 6 | 6 | | | | | | | | | | |
| 3 | J Benneteau | 7 | 6 | | | | | | | | | | | | 3 | J Benneteau | 4 | 7$^9$ | 6$^5$ |
| 7 | L Vanni | 6 | 6 | | | | | | | | | | | | | M Marterer | 6 | 6$^7$ | 7$^7$ |
| | M Bašić | 4 | 4 | | 7 | L Vanni | 6$^5$ | 2 | | | | | | | | | | | |
| | M Marterer | 7$^7$ | 6 | | | M Marterer | 7$^7$ | 6 | | | | | | | | | | | |
| | Q Halys | 6$^4$ | 3 | | | | | | | | M Marterer | 7 | 7 | | | | | | |
| | Y Reuter | 7$^7$ | 2 | 6$^5$ | | | | | | WC | M Janvier | 5 | 5 | | | | | | |
| | T Lamasine | 6$^4$ | 6 | 7$^7$ | | T Lamasine | 3 | 7$^7$ | 3 | | | | | | | | | | |
| WC | M Janvier | 6 | 6$^2$ | 6 | WC | M Janvier | 6 | 6$^5$ | 6 | | | | | | | | | | |
| 2 | I Marchenko | 3 | 7$^7$ | 3 | | | | | | | | | | | | | | | |