# 2018 Sydney International – Men's singles

Gilles Müller was the defending champion, but lost in the quarterfinals to Benoît Paire.
Daniil Medvedev won his first ATP title, defeating Alex de Minaur in the final, 1–6, 6–4, 7–5.

## Seeds

The top four seeds receive a bye into the second round.
* Albert Ramos Viñolas (second round)
* Gilles Müller (quarterfinals)
* Diego Schwartzman (second round)
* Fabio Fognini (semifinals)
* Adrian Mannarino (quarterfinals)
* Philipp Kohlschreiber (first round)
* Damir Džumhur (second round, retired)
* Mischa Zverev (first round)

## Draw
### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| Q | Daniil Medvedev | 2 | 6 | 6 | | | | | |
| 4 | Fabio Fognini | 6 | 4 | 1 | | | | | |
| 4 | Fabio Fognini | 6 | 4 | 1 | Q | Daniil Medvedev | 1 | 6 | 7 |
| | | | | | SE | Alex de Minaur | 6 | 4 | 5 |
| SE | Alex de Minaur | 4 | 6 | 6 | SE | Alex de Minaur | 6 | 4 | 5 |
| | Benoît Paire | 6 | 1 | 1 | | | | | |

### 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 | Semifinals |
| | | | | | 1 | A Ramos Viñolas | 3 | 5 | | | | | | | | | | | |
| | P Lorenzi | 7$^7$ | 6 | | | P Lorenzi | 6 | 7 | | | | | | | | | | | |
| WC | J Thompson | 6$^5$ | 4 | | | | | | | | P Lorenzi | 3 | 3 | | | | | | |
| SE | G Simon | 1 | 4 | | | | | | | Q | D Medvedev | 6 | 6 | | | | | | |
| | J Donaldson | 6 | 6 | | | J Donaldson | 3 | 6 | 5 | | | | | | | | | | |
| Q | D Medvedev | 6 | 6 | | Q | D Medvedev | 6 | 4 | 7 | | | | | | | | | | |
| 6 | P Kohlschreiber | 2 | 3 | | | | | | | | | | | | Q | D Medvedev | 2 | 6 | 6 |
| | | | | | | | | | | | | | | | 4 | F Fognini | 6 | 4 | 1 |
| | | | | | 4 | F Fognini | 3 | 6 | 6 | | | | | | | | | | |
| | A Dolgopolov | 6 | 6$^6$ | 7 | | A Dolgopolov | 6 | 3 | 4 | | | | | | | | | | |
| | V Troicki | 3 | 7$^8$ | 5 | | | | | | 4 | F Fognini | 6$^4$ | 7$^7$ | 6 | | | | | |
| WC | A Bolt | 7 | 5 | 4 | | | | | | 5 | A Mannarino | 7$^7$ | 6$^4$ | 2 | | | | | |
| LL | R Berankis | 5 | 7 | 6 | LL | R Berankis | 2 | 1 | | | | | | | | | | | |
| Q | E Donskoy | 7 | 5 | 4 | 5 | A Mannarino | 6 | 6 | | | | | | | | | | | |
| 5 | A Mannarino | 5 | 7 | 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 | Semifinals |
| 7 | D Džumhur | 6 | 6 | | | | | | | | | | | | | | | |
| | J-L Struff | 1 | 4 | | 7 | D Džumhur | 2 | 0$^r$ | | | | | | | | | | |
| SE | A de Minaur | 6 | 6 | | SE | A de Minaur | 6 | 3 | | | | | | | | | | |
| | F Verdasco | 4 | 2 | | | | | | | SE | A de Minaur | 6 | 6 | | | | | |
| Q | A Vukic | 6 | 6$^5$ | 3 | | | | | | | F López | 4 | 4 | | | | | |
| | F López | 4 | 7$^7$ | 6 | | F López | 6 | 7$^7$ | | | | | | | | | | |
| | | | | | 3 | D Schwartzman | 3 | 6$^1$ | | | | | | | | | | |
| | | | | | | | | | | | | | | SE | A de Minaur | 4 | 6 | 6 |
| 8 | M Zverev | 5 | 3 | | | | | | | | | | | | B Paire | 6 | 1 | 1 |
| | L Mayer | 7 | 6 | | | L Mayer | 2 | 6 | 1 | | | | | | | | | |
| | A Bedene | 6 | 6$^5$ | 3 | | B Paire | 6 | 3 | 6 | | | | | | | | | |
| | B Paire | 1 | 7$^7$ | 6 | | | | | | | B Paire | 6 | 6 | | | | | |
| Q | A Popyrin | 6$^4$ | 0 | | | | | | | 2 | G Müller | 4 | 4 | | | | | |
| WC | J Millman | 7$^7$ | 6 | | WC | J Millman | 6$^5$ | 4 | | | | | | | | | | |
| | | | | | 2 | G Müller | 7$^7$ | 6 | | | | | | | | | | |

## Qualifying
### Seeds

* Daniil Medvedev (qualified)
* Federico Delbonis (first round)
* Evgeny Donskoy (qualified)
* Dušan Lajović (first round)
* Nicolas Mahut (qualifying competition)
* Ričardas Berankis (qualifying competition, lucky loser)
* Václav Šafránek (qualifying competition)
* Teymuraz Gabashvili (qualifying competition, retired)

### Qualifiers

* Daniil Medvedev
* Alexei Popyrin
* Evgeny Donskoy
* Aleksandar Vukic

### Lucky loser

* Ričardas Berankis

### Qualifying draw
#### First qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Daniil Medvedev | 6 | 6 | | | | |
| | Alexander Zhurbin | 1 | 2 | | | | |
| | Alexander Zhurbin | 1 | 2 | 1 | Daniil Medvedev | 6 | 6 |
| | | | | 7 | Václav Šafránek | 2 | 4 |
| Alt | Fabrice Martin | 1 | 2 | 7 | Václav Šafránek | 2 | 4 |
| 7 | Václav Šafránek | 6 | 6 | | | | |

#### Second qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Federico Delbonis | 6 | 3 | 3 | | | | | |
| WC | Alexei Popyrin | 4 | 6 | 6 | | | | | |
| WC | Alexei Popyrin | 4 | 6 | 6 | WC | Alexei Popyrin | 4 | 7$^7$ | 6 |
| | | | | | 5 | Nicolas Mahut | 6 | 6$^4$ | 4 |
| WC | Christopher O'Connell | 6 | 4 | 4 | 5 | Nicolas Mahut | 6 | 6$^4$ | 4 |
| 5 | Nicolas Mahut | 2 | 6 | 6 | | | | | |

#### Third qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Evgeny Donskoy | 6 | 6 | | | |
| Alt | Nicholas Monroe | 3 | 4 | | | |
| Alt | Nicholas Monroe | 3 | 4 | 3 | Evgeny Donskoy | 6 |
| | | | | 8 | Teymuraz Gabashvili | 5$^r$ |
| | Vladimir Polyakov | | | 8 | Teymuraz Gabashvili | 5$^r$ |
| 8 | Teymuraz Gabashvili | w/o | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Dušan Lajović | 5 | 6$^5$ | | | | |
| | Aleksandar Vukic | 7 | 7$^7$ | | | | |
| | Aleksandar Vukic | 7 | 7$^7$ | | Aleksandar Vukic | 7 | 6 |
| | | | | 6 | Ričardas Berankis | 5 | 2 |
| | Matthew Barton | 5 | 3 | 6 | Ričardas Berankis | 5 | 2 |
| 6 | Ričardas Berankis | 7 | 6 | | | | |