The 2018 Brisbane International was a tournament on the 2018 ATP World Tour and 2018 WTA Tour. It was played on outdoor hard courts in Brisbane, Queensland, Australia. It was the tenth edition of the tournament and took place at the Queensland Tennis Centre in Tennyson. It was held from 31 December 2017 to 7 January 2018[1] as part of the Australian Open Series in preparation for the first Grand Slam of the year. Rafael Nadal and Andy Murray were about to start their 2018 seasons at the tournament, but both withdrew due to continuous injuries.[2] [3] On 5 October 2017, defending champions Grigor Dimitrov and Karolína Plíšková announced they would also compete.[4]
| Event | W | F | SF | QF | Round of 16 | Round of 32 | width=85 | Q | width=85 | Q3 | width=85 | Q2 | width=85 | Q1 |
| Men's singles | 250 | 150 | 90 | 45 | 20 | 0 | 12 | 6 | 0 | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Men's doubles | 0 | |||||||||||||
| Women's singles | 470 | 305 | 185 | 100 | 55 | 1 | 25 | 18 | 13 | 1 | ||||
| Women's doubles | 1 |
| Event | W | F | SF | QF | Round of 16 | Round of 321 | width=85 | Q3 | width=85 | Q2 | width=85 | 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 | $190,732 | $101,475 | $54,200 | $23,265 | $12,477 | $6,813 | $3,560 | $1,890 | $1,050 | |||
| Women's doubles * | $47,545 | $25,410 | $13,880 | $7,062 | $3,839 |
| width=70 | Country | width=175 | Player | Rank1 | Seed |
|---|---|---|---|---|---|
| Grigor Dimitrov | 3 | 1 | |||
 United Kingdom | |||||
 Australia | Nick Kyrgios | 21 | 3 | ||
 Canada | Milos Raonic | 24 | 4 | ||
 Luxembourg | Gilles Müller | 25 | 5 | ||
 Argentina | Diego Schwartzman | 26 | 6 | ||
 Bosnia and Herzegovina | Damir Džumhur | 30 | 7 | ||
| Mischa Zverev | 33 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
The following player received entry as a lucky loser:
Andy Murray → replaced by Yannick Hanfmann
Rafael Nadal → replaced by Matthew Ebden
Kei Nishikori → replaced by 
Frances Tiafoe| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
 Finland | Henri Kontinen | Australia | John Peers | 7 | 1 | |
 Brazil | Marcelo Demoliner |  New Zealand | Michael Venus | 49 | 2 | |
 Mexico | Santiago González | Julio Peralta | 57 | 3 | ||
| New Zealand | Marcus Daniell | United Kingdom | Dominic Inglot | 88 | 4 |
The following pair received a wildcard into the doubles main draw:
| width=70 | Country | width=175 | Player | Rank1 | Seed |
|---|---|---|---|---|---|
| Spain | Garbiñe Muguruza | 2 | 1 | ||
 Czech Republic | Karolína Plíšková | 4 | 2 | ||
 Ukraine | Elina Svitolina | 6 | 3 | ||
 France | Caroline Garcia | 8 | 4 | ||
| United Kingdom | Johanna Konta | 9 | 5 | ||
| France | Kristina Mladenovic | 11 | 6 | ||
| Anastasija Sevastova | 16 | 7 | |||
| Australia | Ashleigh Barty | 17 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
The following player received entry as a lucky loser:
Petra Kvitová → replaced by Heather Watson
Magdaléna Rybáriková → replaced by Catherine Bellis Sloane Stephens (knee injury) → replaced by Ana Konjuh
Elena Vesnina → replaced by Tatjana Maria| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
| Latisha Chan | Czech Republic | Andrea Sestini Hlaváčková | 6 | 1 | ||
| Australia | Ashleigh Barty | Australia | Casey Dellacqua | 21 | 2 | |
| Canada | Gabriela Dabrowski |  China | Xu Yifan | 34 | 3 | |
| Andreja Klepač | Spain | María José Martínez Sánchez | 48 | 4 |
The following pairs received a wildcard into the doubles main draw:
The following pair received entry as an alternate:
See main article: 2018 Brisbane International – Men's singles.
Nick Kyrgios def. Ryan Harrison, 6–4, 6–2See main article: 2018 Brisbane International – Women's singles.
Elina Svitolina def. 
Aliaksandra Sasnovich, 6–2, 6–1See main article: 2018 Brisbane International – Men's doubles.
Henri Kontinen / John Peers def. Leonardo Mayer / Horacio Zeballos, 3–6, 6–3, [10–2]See main article: 2018 Brisbane International – Women's doubles.
María José Martínez Sánchez, 7–5, 6–2
