# 2018 Sydney International

The 2018 Sydney International was a joint 2018 ATP World Tour and 2018 WTA Tour tennis tournament, played on outdoor hard courts in Sydney, New South Wales (NSW). It was the 126th edition of the tournament and took place at the NSW Tennis Centre in Sydney. It was held from 7 January through 13 January 2018 as part of the Australian Open Series in preparation for the first Grand Slam of the year. Venus Williams played the event for the first time in 17 years, 20 years after her maiden appearance.

## Point distribution

| Event | W | F | SF | QF | Round of 16 | Round of 32 | Q | Q3 | Q2 | Q1 |
| Men's singles | 250 | 150 | 90 | 45 | 20 | 0 | 12 | 6 | 0 | 0 |
| Men's doubles | 250 | 150 | 90 | 45 | 0 | — | — | — | — | — |
| Women's singles | 470 | 305 | 185 | 100 | 55 | 1 | 25 | 18 | 13 | 1 |
| Women's doubles | 470 | 305 | 185 | 100 | 1 | — | — | — | — | — |

## Prize money

| Event | W | F | SF | QF | Round of 16 | Round of 32$^1$ | Q3 | Q2 | Q1 |
| Men's singles | $83,650 | $44,055 | $23,865 | $13,595 | $8,010 | $4,745 | $2,135 | $1,070 | — |
| Men's doubles* | $25,410 | $13,360 | $7,240 | $4,140 | $2,430 | — | — | — | — |
| Women's singles | $137,125 | $73,201 | $39,132 | $20,970 | $11,245 | $6,140 | $3,210 | $1,705 | $945 |
| Women's doubles* | $42,850 | $22,900 | $12,510 | $6,365 | $3,460 | — | — | — | — |
$_{1QualifiersprizemoneyisalsotheRoundof32prizemoney.}$ $_{*perteam}$

## ATP singles main-draw entrants
### Seeds

| Country | Player | Rank$^1$ | Seed |
| ESP | Albert Ramos Viñolas | 23 | 1 |
| LUX | Gilles Müller | 25 | 2 |
| ARG | Diego Schwartzman | 26 | 3 |
| ITA | Fabio Fognini | 27 | 4 |
| FRA | Adrian Mannarino | 28 | 5 |
| GER | Philipp Kohlschreiber | 29 | 6 |
| BIH | Damir Džumhur | 30 | 7 |
| GER | Mischa Zverev | 33 | 8 |
* $^1$Ranking as of 1 January 2018.

### Other entrants

The following players received wildcards into the singles main draw:
* Alex Bolt
* John Millman
* Jordan Thompson
The following players received entry into the singles main draw as special exempts:
* Alex de Minaur
* Gilles Simon
The following players received entry from the qualifying draw:
* Evgeny Donskoy
* Daniil Medvedev
* Alexei Popyrin
* Aleksandar Vukic
The following player received entry as a lucky loser:
* Ričardas Berankis

### Withdrawals
#### Before the tournament

* Filip Krajinović → replaced by Ričardas Berankis
* Kei Nishikori → replaced by Viktor Troicki

### Retirements

* Damir Džumhur

## ATP doubles main-draw entrants
### Seeds

| Country | Player | Country | Player | Rank$^1$ | Seed |
| POL | Łukasz Kubot | BRA | Marcelo Melo | 3 | 1 |
| NED | Jean-Julien Rojer | ROU | Horia Tecău | 15 | 2 |
| ESP | Feliciano López | ESP | Marc López | 44 | 3 |
| IND | Rohan Bopanna | FRA | Édouard Roger-Vasselin | 44 | 4 |
* $^1$ Ranking as of 1 January 2018.

### Other entrants

The following pairs received wildcards into the doubles main draw:
* Alex Bolt / Jordan Thompson
* Christopher O'Connell / Matt Reid

### Withdrawals
#### During the tournament

* Damir Džumhur

## WTA singles main-draw entrants
### Seeds

| Country | Player | Rank$^1$ | Seed |
| ESP | Garbiñe Muguruza | 2 | 1 |
| USA | Venus Williams | 5 | 2 |
| LAT | Jeļena Ostapenko | 7 | 3 |
| GBR | Johanna Konta | 9 | 4 |
| FRA | Kristina Mladenovic | 11 | 5 |
| USA | Sloane Stephens | 13 | 6 |
| GER | Julia Görges | 14 | 7 |
| LAT | Anastasija Sevastova | 16 | 8 |
* $^1$Ranking as of 1 January 2018.

### Other entrants

The following players received wildcards into the singles main draw:
* Garbiñe Muguruza
* Ellen Perez
* Olivia Rogowska
* Samantha Stosur
The following players received entry from the qualifying draw:
* Kristie Ahn
* Catherine Bellis
* Verónica Cepede Royg
* Camila Giorgi
The following players received entry as lucky losers:
* Lara Arruabarrena
* Carina Witthöft

### Withdrawals
#### Before the tournament

* Julia Görges → replaced by Carina Witthöft
* Anastasia Pavlyuchenkova → replaced by Ekaterina Makarova
* Peng Shuai → replaced by Lara Arruabarrena

#### During the tournament

* Garbiñe Muguruza

### Retirements

* Mirjana Lučić-Baroni
* Kristina Mladenovic

## WTA doubles main-draw entrants
### Seeds

| Country | Player | Country | Player | Rank$^1$ | Seed |
| TPE | Latisha Chan | CZE | Andrea Sestini Hlaváčková | 6 | 1 |
| CZE | Lucie Šafářová | CZE | Barbora Strýcová | 21 | 2 |
| CAN | Gabriela Dabrowski | CHN | Xu Yifan | 34 | 3 |
| NED | Kiki Bertens | SWE | Johanna Larsson | 39 | 4 |
* $^1$Ranking as of 1 January 2018.

### Other entrants

The following team received entry as alternates:
* Lara Arruabarrena / Lauren Davis

### Withdrawals
#### Before the tournament

* Elena Vesnina

#### During the tournament

* Barbora Strýcová

## Champions
### Men's singles

* Daniil Medvedev def. Alex de Minaur, 1–6, 6–4, 7–5

### Women's singles

* Angelique Kerber def. Ashleigh Barty, 6–4, 6–4

### Men's doubles

* Łukasz Kubot / Marcelo Melo def. Jan-Lennard Struff / Viktor Troicki, 6–3, 6–4.

### Women's doubles

* Gabriela Dabrowski / Xu Yifan def. Latisha Chan / Andrea Sestini Hlaváčková, 6–3, 6–1