# 2018 Open du Pays d'Aix – Singles

Frances Tiafoe was the defending champion but chose not to defend his title.
John Millman won the title after defeating Bernard Tomic 6–1, 6–2 in the final.

## Seeds

* John Millman (champion)
* Jérémy Chardy (first round)
* Radu Albot (first round)
* Cameron Norrie (second round)
* Calvin Hemery (first round)
* Peter Polansky (first round)
* Sergiy Stakhovsky (first round)
* Thiago Monteiro (quarterfinals)

## 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 | John Millman | 6$^9$ | 6 | 7 | | | | |
| | Guido Andreozzi | 7$^{11}$ | 2 | 5 | | | | |
| | Guido Andreozzi | 7$^{11}$ | 2 | 5 | 1 | John Millman | 6 | 6 |
| | | | | | | Bernard Tomic | 1 | 2 |
| | Elias Ymer | 6 | 6$^2$ | 4 | | Bernard Tomic | 1 | 2 |
| | Bernard Tomic | 2 | 7$^7$ | 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 | J Millman | 6 | 5 | 6 | | | | | | | | | | | | | | |
| Q | A Popyrin | 2 | 7 | 2 | 1 | J Millman | 6 | 6 | | | | | | | | | | |
| | S Kozlov | 6$^2$ | 4 | | | C Lestienne | 2 | 2 | | | | | | | | | | |
| | C Lestienne | 7$^7$ | 6 | | | | | | | 1 | J Millman | 6 | 6 | | | | | |
| | O Otte | 2 | 6 | 6 | | | | | | | O Otte | 4 | 0 | | | | | |
| Q | S Diez | 6 | 2 | 3 | | O Otte | 4 | 6 | 6 | | | | | | | | | |
| | S Ofner | 3 | 6 | 7 | | S Ofner | 6 | 3 | 2 | | | | | | | | | |
| 7 | S Stakhovsky | 6 | 2 | 5 | | | | | | | | | | 1 | J Millman | 6$^9$ | 6 | 7 |
| 3 | R Albot | 6 | 3 | 4 | | | | | | | | | | | G Andreozzi | 7$^{11}$ | 2 | 5 |
| | G Andreozzi | 3 | 6 | 6 | | G Andreozzi | 6 | 6 | | | | | | | | | | |
| WC | A Müller | 2 | 2 | | Q | M González | 1 | 2 | | | | | | | | | | |
| Q | M González | 6 | 6 | | | | | | | | G Andreozzi | 7$^9$ | 7$^7$ | | | | | |
| | A Bublik | 6$^5$ | 6$^4$ | | | | | | | 8 | T Monteiro | 6$^7$ | 6$^2$ | | | | | |
| | B Klahn | 7$^7$ | 7$^7$ | | | B Klahn | 5 | 4 | | | | | | | | | | |
| | M Moraing | 2 | 3 | | 8 | T Monteiro | 7 | 6 | | | | | | | | | | |
| 8 | T Monteiro | 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 5 | C Hemery | 6$^2$ | 2 | | | | | | | | | | | | | | |
| SE | N Serdarušić | 7$^7$ | 6 | | SE | N Serdarušić | 6 | 6 | | | | | | | | | |
| | N Gombos | 6 | 7$^7$ | | | N Gombos | 4 | 4 | | | | | | | | | |
| | T Robredo | 2 | 6$^4$ | | | | | | | SE | N Serdarušić | 5 | 3 | | | | |
| | B Bonzi | 4 | 2 | | | | | | | | E Ymer | 7 | 6 | | | | |
| | E Ymer | 6 | 6 | | | E Ymer | 2 | 6 | 7 | | | | | | | | |
| | K de Schepper | 6 | 2 | 1 | 4 | C Norrie | 6 | 3 | 5 | | | | | | | | |
| 4 | C Norrie | 1 | 6 | 6 | | | | | | | | | | E Ymer | 6 | 6$^2$ | 4 |
| 6 | P Polansky | 5 | 7 | 3 | | | | | | | | | | B Tomic | 2 | 7$^7$ | 6 |
| WC | J Tatlot | 7 | 5 | 6 | WC | J Tatlot | 4 | 1 | | | | | | | | | |
| | B Tomic | 6 | 2 | 7 | | B Tomic | 6 | 6 | | | | | | | | | |
| WC | G Blancaneaux | 4 | 6 | 5 | | | | | | | B Tomic | 6 | 6 | | | | |
| Q | G Mager | 7 | 7$^9$ | | | | | | | Q | G Mager | 3 | 4 | | | | |
| | E Gulbis | 5 | 6$^7$ | | Q | G Mager | 6 | 3 | 6 | | | | | | | | |
| WC | E Benchetrit | 6 | 6 | | WC | E Benchetrit | 4 | 6 | 1 | | | | | | | | |
| 2 | J Chardy | 3 | 2 | | | | | | | | | | | | | | |