2018 Brisbane International

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 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. On 5 October 2017, defending champions Grigor Dimitrov and Karolína Plíšková announced they would also compete.

Prize money
1Qualifiers prize money is also the Round of 32 prize money.
 * per team

Seeds

 * 1 Rankings are as of 25 December 2017.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇦🇺 Alex de Minaur
 * 🇦🇺 John Millman
 * 🇦🇺 Jordan Thompson

The following players received entry from the qualifying draw:
 * 🇺🇸 Ernesto Escobedo
 * 🇺🇸 Michael Mmoh
 * 🇨🇦 Peter Polansky
 * 🇦🇺 John-Patrick Smith

The following player received entry as a lucky loser:
 * 🇩🇪 Yannick Hanfmann

Withdrawals

 * Before the tournament
 * 🇬🇧 Andy Murray → replaced by 🇩🇪 Yannick Hanfmann
 * 🇪🇸 Rafael Nadal → replaced by 🇦🇺 Matthew Ebden
 * 🇯🇵 Kei Nishikori → replaced by 🇺🇸 Frances Tiafoe

Retirements

 * 🇺🇿 Denis Istomin

Seeds

 * 1 Rankings are as of 25 December 2017.

Other entrants
The following pair received a wildcard into the doubles main draw:
 * 🇦🇺 Lleyton Hewitt / 🇦🇺 Jordan Thompson

Withdrawals

 * During the tournament
 * 🇺🇸 Ryan Harrison

Seeds

 * 1 Rankings are as of 25 December 2017.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇦🇺 Destanee Aiava
 * Ajla Tomljanović

The following players received entry from the qualifying draw:
 * 🇺🇦 Kateryna Bondarenko
 * 🇺🇸 Jennifer Brady
 * 🇪🇪 Kaia Kanepi
 * 🇧🇾 Aliaksandra Sasnovich

The following player received entry as a lucky loser:
 * 🇬🇧 Heather Watson

Withdrawals

 * Before the tournament
 * 🇨🇿 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

Retirements

 * 🇫🇷 Caroline Garcia
 * 🇬🇧 Johanna Konta
 * 🇪🇸 Garbiñe Muguruza

Seeds

 * 1 Rankings are as of 25 December 2017.

Other entrants
The following pairs received a wildcard into the doubles main draw:
 * 🇦🇺 Priscilla Hon / Ajla Tomljanović
 * 🇺🇸 Madison Keys / 🇬🇧 Heather Watson

The following pair received entry as an alternate:
 * 🇷🇴 Sorana Cîrstea / Anastasija Sevastova

Withdrawals

 * Before the tournament
 * 🇪🇸 Carla Suárez Navarro

Men's singles

 * 🇦🇺 Nick Kyrgios def. 🇺🇸 Ryan Harrison, 6–4, 6–2

Women's singles

 * 🇺🇦 Elina Svitolina def. 🇧🇾 Aliaksandra Sasnovich, 6–2, 6–1

Men's doubles

 * 🇫🇮 Henri Kontinen / 🇦🇺 John Peers def. 🇦🇷 Leonardo Mayer / 🇦🇷 Horacio Zeballos, 3–6, 6–3, [10–2]

Women's doubles

 *  Kiki Bertens /  Demi Schuurs def. Andreja Klepač / 🇪🇸 María José Martínez Sánchez, 7–5, 6–2