Men's singles

Mats Wilander defeated Ivan Lendl, 6–1, 6–4, 6–4

• It was Wilander's 2nd career Grand Slam singles title and his 1st title at the Australian Open.

Women's singles

Martina Navratilova defeated Kathy Jordan, 6–2, 7–6^(7–5)

• It was Navratilova's 8th career Grand Slam singles title and her 2nd title at the Australian Open.

Men's doubles

Mark Edmondson / Paul McNamee defeated Steve Denton / Sherwood Stewart 6–3, 7–6

• It was Edmondson's 4th career Grand Slam title and his 4th Australian Open title. It was McNamee's 4th and last career Grand Slam title and his 2nd Australian Open title.

Women's doubles

Martina Navratilova / Pam Shriver defeated Anne Hobbs / Wendy Turnbull 6–4, 6–7, 6–2

• It was Navratilova's 23rd career Grand Slam title and her 5th Australian Open title. It was Shriver's 6th career Grand Slam title and her 2nd Australian Open title.

Mixed doubles

The competition was not held between 1970 and 1986.

Boys' singles

Stefan Edberg defeated Simon Youl 6–4, 6–4

• With this victory Edberg completed the only junior Grand Slam in a calendar year in the Open Era to date. Butch Buchholz completed the same Grand Slam in 1958, but the US Open junior events were invitational at that time.

Girls' singles

Amanda Brown defeated Bernadette Randall 7–6, 6–3

Boys' doubles

Jamie Harty / Des Tyson defeated Darren Cahill / Anthony Lane 3–6, 6–4, 6–3

Girls' doubles

Bernadette Randall / Kim Staunton defeated Jenny Byrne / Janine Thompson 3–6, 6–3, 6–3