# 2018 ATP Lyon Open – Singles

Jo-Wilfried Tsonga was the defending champion, but due to injury did not defend his title.
Dominic Thiem won the title, defeating Gilles Simon in the final, 3–6, 7–6$^{(7–2)}$, 6–1.

## Seeds

The top four seeds receive a bye into the second round.
* Dominic Thiem (champion)
* John Isner (quarterfinals)
* Jack Sock (second round)
* Chung Hyeon (withdrew)
* Adrian Mannarino (first round)
* Gaël Monfils (first round)
* João Sousa (first round)
* John Millman (withdrew)

## 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 | Final |
| 1 | Dominic Thiem | 6 | 5 | 6 | | | | | |
| | Dušan Lajović | 4 | 7 | 4 | | | | | |
| | Dušan Lajović | 4 | 7 | 4 | 1 | Dominic Thiem | 3 | 7$^7$ | 6 |
| | | | | | | Gilles Simon | 6 | 6$^2$ | 1 |
| | Gilles Simon | 6 | 7$^8$ | | | Gilles Simon | 6 | 6$^2$ | 1 |
| | Cameron Norrie | 1 | 6$^6$ | | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| | | | | | 1 | D Thiem | 6 | 6 | | | | | | | | | | |
| | R Carballés Baena | 7$^7$ | 6$^4$ | 6 | | R Carballés Baena | 2 | 4 | | | | | | | | | | |
| Q | L Đere | 6$^3$ | 7$^7$ | 3 | | | | | 1 | D Thiem | 6$^4$ | 7$^7$ | 6 | | | | | |
| WC | C Moutet | 7$^7$ | 4 | 3 | | | | | | G García López | 7$^7$ | 6$^0$ | 4 | | | | | |
| | C Hemery | 6$^4$ | 6 | 6 | | C Hemery | 6$^4$ | 3 | | | | | | | | | | |
| | G García López | 6 | 4 | 6 | | G García López | 7$^7$ | 6 | | | | | | | | | | |
| 5/WC | A Mannarino | 3 | 6 | 1 | | | | | | | | | | 1 | D Thiem | 6 | 5 | 6 |
| | | | | | | | | | | | | | | | D Lajović | 4 | 7 | 4 |
| | | | | | 3 | J Sock | 6$^6$ | 2 | | | | | | | | | | |
| | T Fritz | 6 | 6 | | | T Fritz | 7$^8$ | 6 | | | | | | | | | | |
| | M Ebden | 4 | 2 | | | | | | | T Fritz | 5 | 1 | | | | | | |
| | D Lajović | 6 | 6 | | | | | | | D Lajović | 7 | 6 | | | | | | |
| | H Zeballos | 4 | 2 | | | D Lajović | 6 | 7 | | | | | | | | | | |
| Q | F Horanský | 6 | 3 | 6 | Q | F Horanský | 4 | 5 | | | | | | | | | | |
| 7 | J Sousa | 4 | 6 | 4 | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals |
| LL | F Coria | 4 | 6 | 7 | | | | | | | | | | | | |
| | N Kicker | 6 | 1 | 5 | LL | F Coria | 2 | 3 | | | | | | | | |
| WC | G Barrère | 2 | 3 | | | M Kukushkin | 6 | 6 | | | | | | | | |
| | M Kukushkin | 6 | 6 | | | | | | | M Kukushkin | 6 | 4 | 6$^5$ | | | |
| | G Simon | 6 | 6 | | | | | | | G Simon | 4 | 6 | 7$^7$ | | | |
| Q | J Samper Montaña | 4 | 2 | | | G Simon | 7$^7$ | 6 | | | | | | | | |
| | | | | | LL | J De Loore | 6$^3$ | 2 | | | | | | | | |
| | | | | | | | | | | | | | | G Simon | 6 | 7$^8$ |
| 6 | G Monfils | 6 | 4 | 4 | | | | | | | | | | C Norrie | 1 | 6$^6$ |
| | M Marterer | 2 | 6 | 6 | | M Marterer | 1 | 4 | | | | | | | | |
| | C Norrie | 7$^7$ | 6 | | | C Norrie | 6 | 6 | | | | | | | | |
| Q | J Hernández-Fernández | 6$^5$ | 1 | | | | | | | C Norrie | 7$^7$ | 6 | | | | |
| | F Delbonis | 7$^9$ | 5 | 4 | | | | | 2 | J Isner | 6$^1$ | 4 | | | | |
| | R Albot | 6$^7$ | 7 | 6 | | R Albot | 6$^3$ | 3 | | | | | | | | |
| | | | | | 2 | J Isner | 7$^7$ | 6 | | | | | | | | |

## Qualifying
### Seeds

* Laslo Đere (qualified)
* Roberto Quiroz (first round)
* José Hernández-Fernández (qualified)
* Alejandro González (first round)
* Maxime Janvier (first round)
* Steven Diez (first round)
* Federico Coria (qualifying competition, lucky loser)
* Evgeny Karlovskiy (first round)

### Qualifiers

* Laslo Đere
* Filip Horanský
* José Hernández-Fernández
* Jordi Samper Montaña

### Lucky losers

* Federico Coria
* Joris De Loore

### Qualifying draw
#### First qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Laslo Đere | 6 | 6 | | | | | |
| | Yannick Mertens | 4 | 3 | | | | | |
| | Yannick Mertens | 4 | 3 | | 1 | Laslo Đere | 7 | 6 |
| | | | | | | Joris De Loore | 5 | 4 |
| | Joris De Loore | 4 | 6 | 7 | | Joris De Loore | 5 | 4 |
| 5 | Maxime Janvier | 6 | 3 | 5 | | | | |

#### Second qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Roberto Quiroz | 4 | 2 | | | | | |
| | Filip Horanský | 6 | 6 | | | | | |
| | Filip Horanský | 6 | 6 | | | Filip Horanský | 6 | 6 |
| | | | | | WC | Antoine Cornut-Chauvinc | 1 | 3 |
| WC | Antoine Cornut-Chauvinc | 5 | 6 | 6 | WC | Antoine Cornut-Chauvinc | 1 | 3 |
| 6 | Steven Diez | 7 | 2 | 1 | | | | |

#### Third qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | José Hernández-Fernández | 7$^7$ | 6 | | | | |
| | Tristan Lamasine | 6$^2$ | 4 | | | | |
| | Tristan Lamasine | 6$^2$ | 4 | 3 | José Hernández-Fernández | 6 | 6 |
| | | | | 7 | Federico Coria | 2 | 4 |
| | Axel Michon | 3 | 0 | 7 | Federico Coria | 2 | 4 |
| 7 | Federico Coria | 6 | 6 | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Alejandro González | 6 | 3 | 5 | | | | | |
| | Jordi Samper Montaña | 3 | 6 | 7 | | | | | |
| | Jordi Samper Montaña | 3 | 6 | 7 | | Jordi Samper Montaña | 6 | 4 | 6 |
| | | | | | WC | Matteo Martineau | 3 | 6 | 3 |
| WC | Matteo Martineau | 6 | 3 | 6 | WC | Matteo Martineau | 3 | 6 | 3 |
| 8 | Evgeny Karlovskiy | 3 | 6 | 3 | | | | | |