# 2018 Geneva Open – Singles

Stan Wawrinka was the two-time defending champion but lost to Márton Fucsovics in the quarterfinals.
Fucsovics went on to win his first ATP World Tour singles title, defeating Peter Gojowczyk in the final, 6–2, 6–2. Fucsovics became the first Hungarian player to win an ATP World Tour singles title since Balázs Taróczy in 1982.

## Seeds

The top four seeds receive a bye into the second round.
* Sam Querrey (second round)
* Fabio Fognini (semifinals)
* Stan Wawrinka (quarterfinals)
* David Ferrer (second round)
* Albert Ramos Viñolas (first round)
* Steve Johnson (semifinals)
* Andreas Seppi (quarterfinals)
* Mischa Zverev (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 |
| 6 | Steve Johnson | 6 | 4 | 1 | | | |
| | Márton Fucsovics | 2 | 6 | 6 | | | |
| | Márton Fucsovics | 2 | 6 | 6 | Márton Fucsovics | 6 | 6 |
| | | | | | Peter Gojowczyk | 2 | 2 |
| | Peter Gojowczyk | 6 | 6 | | Peter Gojowczyk | 2 | 2 |
| 2/WC | Fabio Fognini | 4 | 4 | | | | |

### 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 | S Querrey | 5 | 7$^8$ | 6$^4$ | | | | | | | | | |
| Q | D Köpfer | 3 | 4 | | | G Pella | 7 | 6$^6$ | 7$^7$ | | | | | | | | | |
| | G Pella | 6 | 6 | | | | | | | | G Pella | 3 | 4 | | | | | |
| | J Veselý | 6 | 6$^6$ | 6$^4$ | | | | | | 6 | S Johnson | 6 | 6 | | | | | |
| Q | L Rosol | 2 | 7$^8$ | 7$^7$ | Q | L Rosol | 4 | 6 | 3 | | | | | | | | | |
| | M Copil | 6$^4$ | 3 | | 6 | S Johnson | 6 | 4 | 6 | | | | | | | | | |
| 6 | S Johnson | 7$^7$ | 6 | | | | | | | | | | | 6 | S Johnson | 6 | 4 | 1 |
| | | | | | | | | | | | | | | | M Fucsovics | 2 | 6 | 6 |
| | | | | | 3/WC | S Wawrinka | 6 | 6 | | | | | | | | | | |
| | J Donaldson | 5 | 6 | 6 | | J Donaldson | 3 | 4 | | | | | | | | | | |
| | D Istomin | 7 | 4 | 0 | | | | | | 3/WC | S Wawrinka | 4 | 0 | | | | | |
| | F Tiafoe | 3 | 7$^7$ | 6 | | | | | | | M Fucsovics | 6 | 6 | | | | | |
| | R Harrison | 6 | 6$^5$ | 4 | | F Tiafoe | 6$^5$ | 4 | | | | | | | | | | |
| | M Fucsovics | 6 | 6 | | | M Fucsovics | 7$^7$ | 6 | | | | | | | | | | |
| 5 | A Ramos Viñolas | 1 | 2 | | | | | | | | | | | | | | | |

### 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 | A Seppi | 7 | 6 | | | | | | | | | | | | | | | |
| | M Cecchinato | 5 | 4 | | 7 | A Seppi | 7 | 6 | | | | | | | | | | |
| | F Mayer | 3 | 2 | | Q | B Zapata Miralles | 5 | 3 | | | | | | | | | | |
| Q | B Zapata Miralles | 6 | 6 | | | | | | | 7 | A Seppi | 3 | 7$^7$ | 3 | | | | |
| | I Karlović | 6$^4$ | 6 | 6$^1$ | | | | | | | P Gojowczyk | 6 | 6$^3$ | 6 | | | | |
| | P Gojowczyk | 7$^7$ | 4 | 7$^7$ | | P Gojowczyk | 6 | 6 | | | | | | | | | | |
| | | | | | 4/WC | D Ferrer | 2 | 4 | | | | | | | | | | |
| | | | | | | | | | | | | | | | | P Gojowczyk | 6 | 6 |
| 8 | M Zverev | 7 | 3 | 4 | | | | | | | | | | | 2/WC | F Fognini | 4 | 4 |
| | M Bašić | 5 | 6 | 6 | | M Bašić | 3 | 2 | | | | | | | | | | |
| PR | A Haider-Maurer | 6 | 1 | 0 | | T Sandgren | 6 | 6 | | | | | | | | | | |
| | T Sandgren | 1 | 6 | 6 | | | | | | | T Sandgren | 6$^3$ | 6$^5$ | | | | | |
| | M Baghdatis | 6$^4$ | 4 | | | | | | | 2/WC | F Fognini | 7$^7$ | 7$^7$ | | | | | |
| Q | N Rubin | 7$^7$ | 6 | | Q | N Rubin | 7$^7$ | 2 | 2 | | | | | | | | | |
| | | | | | 2/WC | F Fognini | 6$^5$ | 6 | 6 | | | | | | | | | |

## Qualifying
### Seeds

* Pablo Andújar (qualifying competition)
* Nino Serdarušić (first round)
* Noah Rubin (qualified)
* Matteo Donati (first round)
* Jan Choinski (first round)
* Dominik Köpfer (qualified)
* Lukáš Rosol (qualified)
* Bernabé Zapata Miralles (qualified)

### Qualifiers

* Dominik Köpfer
* Lukáš Rosol
* Noah Rubin
* Bernabé Zapata Miralles

### Qualifying draw
#### First qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Pablo Andújar | 6 | 6 | | | | |
| WC | Antoine Bellier | 3 | 2 | | | | |
| WC | Antoine Bellier | 3 | 2 | 1 | Pablo Andújar | 3 | 5 |
| | | | | 6 | Dominik Köpfer | 6 | 7 |
| | Gerard Granollers | 2 | 0 | 6 | Dominik Köpfer | 6 | 7 |
| 6 | Dominik Köpfer | 6 | 6 | | | | |

#### Second qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Nino Serdarušić | 4 | 4 | | | | | |
| | Jeremy Jahn | 6 | 6 | | | | | |
| | Jeremy Jahn | 6 | 6 | | Jeremy Jahn | 7$^{15}$ | 3 | 5 |
| | | | | 7 | Lukáš Rosol | 6$^{13}$ | 6 | 7 |
| | Ivan Gakhov | 1 | 3 | 7 | Lukáš Rosol | 6$^{13}$ | 6 | 7 |
| 7 | Lukáš Rosol | 6 | 6 | | | | | |

#### Third qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Noah Rubin | 3 | 7$^7$ | 6 | | | | |
| | Franko Škugor | 6 | 6$^4$ | 4 | | | | |
| | Franko Škugor | 6 | 6$^4$ | 4 | 3 | Noah Rubin | 7$^7$ | 7$^7$ |
| | | | | | | Frank Dancevic | 6$^2$ | 6$^3$ |
| | Frank Dancevic | 7$^7$ | 7 | | | Frank Dancevic | 6$^2$ | 6$^3$ |
| 5 | Jan Choinski | 6$^4$ | 5 | | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Matteo Donati | 2 | 4 | | | | | |
| WC | Marko Miladinović | 6 | 6 | | | | | |
| WC | Marko Miladinović | 6 | 6 | | WC | Marko Miladinović | 4 | 1 |
| | | | | | 8 | Bernabé Zapata Miralles | 6 | 6 |
| | Andrea Pellegrino | 7 | 1 | 1 | 8 | Bernabé Zapata Miralles | 6 | 6 |
| 8 | Bernabé Zapata Miralles | 5 | 6 | 6 | | | | |