# 2017 Open Sopra Steria de Lyon – Singles

Steve Darcis was the defending champion but chose not to defend his title.
Félix Auger-Aliassime won the title after defeating Mathias Bourgue 6–4, 6–1 in the final.

## Seeds

* Horacio Zeballos (quarterfinals)
* Marcel Granollers (first round)
* Henri Laaksonen (first round)
* Casper Ruud (quarterfinals)
* Paul-Henri Mathieu (quarterfinals)
* Arthur De Greef (second round)
* Lee Duck-hee (first round)
* João Souza (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 | Final | Final | Final | Final |
| Q | Tristan Lamasine | 2 | 1 | | | | |
| | Mathias Bourgue | 6 | 6 | | | | |
| | Mathias Bourgue | 6 | 6 | | Mathias Bourgue | 4 | 1 |
| | | | | WC | Félix Auger-Aliassime | 6 | 6 |
| WC | Félix Auger-Aliassime | 6 | 6 | WC | Félix Auger-Aliassime | 6 | 6 |
| | Aleksandr Nedovyesov | 0 | 3 | | | | |

### 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 | H Zeballos | 6 | 2 | 6 | | | | | | | | | | | | | | |
| WC | A Müller | 2 | 6 | 0 | 1 | H Zeballos | 6 | 7$^{10}$ | | | | | | | | | | |
| WC | C Moutet | 5 | 3 | | | E Ymer | 3 | 6$^8$ | | | | | | | | | | |
| | E Ymer | 7 | 6 | | | | | | | 1 | H Zeballos | 7 | 5 | 4 | | | | |
| Q | T Lamasine | 6 | 6 | | | | | | | Q | T Lamasine | 5 | 7 | 6 | | | | |
| | C İlkel | 1 | 4 | | Q | T Lamasine | 6 | 6 | | | | | | | | | | |
| | C Garin | 7$^7$ | 6 | | | C Garin | 1 | 4 | | | | | | | | | | |
| 8 | J Souza | 6$^5$ | 1 | | | | | | | | | | | | Q | T Lamasine | 2 | 1 |
| 3 | H Laaksonen | 1 | 4 | | | | | | | | | | | | | M Bourgue | 6 | 6 |
| WC | M Janvier | 6 | 6 | | WC | M Janvier | 4 | 6$^3$ | | | | | | | | | | |
| | J Hernández-Fernández | 2 | 2 | | | M Bourgue | 6 | 7$^7$ | | | | | | | | | | |
| | M Bourgue | 6 | 6 | | | | | | | | M Bourgue | 7 | 7$^8$ | | | | | |
| Q | M Chazal | 6 | 6 | | | | | | | Q | M Chazal | 5 | 6$^6$ | | | | | |
| | K Coppejans | 3 | 2 | | Q | M Chazal | 4 | 6 | 6 | | | | | | | | | |
| | J Munar | 3 | 6 | 0$^r$ | 6 | A De Greef | 6 | 2 | 1 | | | | | | | | | |
| 6 | A De Greef | 6 | 4 | 5 | | | | | | | | | | | | | | |

### 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 |
| 7 | D-h Lee | 4 | 5 | | | | | | | | | | | | | | | |
| | L Grigelis | 6 | 7 | | | L Grigelis | 7$^8$ | 1 | 4 | | | | | | | | | |
| | N Jarry | 4 | 6 | 2 | WC | F Auger-Aliassime | 6$^6$ | 6 | 6 | | | | | | | | | |
| WC | F Auger-Aliassime | 6 | 4 | 6 | | | | | | WC | F Auger-Aliassime | 6 | 6$^4$ | 6 | | | | |
| | J Šátral | 6 | 7$^7$ | | | | | | | 4 | C Ruud | 4 | 7$^7$ | 4 | | | | |
| Q | J Zopp | 3 | 6$^4$ | | | J Šátral | 3 | 2 | | | | | | | | | | |
| | L Giustino | 4 | 0 | | 4 | C Ruud | 6 | 6 | | | | | | | | | | |
| 4 | C Ruud | 6 | 6 | | | | | | | | | | | | WC | F Auger-Aliassime | 6 | 6 |
| 5 | P-H Mathieu | 6 | 6 | | | | | | | | | | | | | A Nedovyesov | 0 | 3 |
| | Jeremy Jahn | 3 | 1 | | 5 | P-H Mathieu | 6 | 5 | 6 | | | | | | | | | |
| | M Trungelliti | 7 | 6 | | | M Trungelliti | 3 | 7 | 3 | | | | | | | | | |
| | B Rola | 5 | 1 | | | | | | | 5 | P-H Mathieu | 2 | 2 | | | | | |
| Q | H Nys | 2 | 4 | | | | | | | | A Nedovyesov | 6 | 6 | | | | | |
| | Y Reuter | 6 | 6 | | | Y Reuter | 5 | 2 | | | | | | | | | | |
| | A Nedovyesov | 6 | 6 | | | A Nedovyesov | 7 | 6 | | | | | | | | | | |
| 2 | M Granollers | 4 | 4 | | | | | | | | | | | | | | | |