| Singles | |
|---|---|
| 1989 Toray Pan Pacific Open | |
| Champion |  Martina Navratilova |
| Runner-up | Lori McNeil |
| Final score | 6–7, 6–3, 7–6 |
| Draw | 28 (4 Q ) |
| Seeds | 8 |
Pam Shriver was the defending champion but did not compete that year.
First-seeded Martina Navratilova won in the final 6–7, 6–3, 7–6 against Lori McNeil.
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated. The top four seeds received a bye to the second round.
Martina Navratilova (champion) Chris Evert (quarterfinals)
Gabriela Sabatini (quarterfinals)
Natasha Zvereva (second round) Zina Garrison (semifinals)
Claudia Kohde-Kilsch (quarterfinals) Lori McNeil (final) Mary Joe Fernández (semifinals)| Final | ||||||
| 1 | Martina Navratilova | 6 | 6 | 7 | ||
| 7 | Lori McNeil | 7 | 3 | 6 | ||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | M Navratilova | 6 | 6 | ||||||||||||||||||||||||
| L Savchenko | 7 | 5 | 4 | LL |  N Miyagi | 4 | 1 | ||||||||||||||||||||
| LL | N Miyagi | 5 | 7 | 6 | 1 | M Navratilova | 6 | 6 | |||||||||||||||||||
| L Meskhi | 3 | 4 | 6 | C Kohde-Kilsch | 2 | 2 | |||||||||||||||||||||
 R Reggi | 6 | 6 | R Reggi | 2 | 2 | ||||||||||||||||||||||
| E Inoue | 4 | 5 | 6 | C Kohde-Kilsch | 6 | 6 | |||||||||||||||||||||
| 6 | C Kohde-Kilsch | 6 | 7 | 1 | M Navratilova | 6 | 6 | ||||||||||||||||||||
| 8 | M J Fernández | 2 | 2 | ||||||||||||||||||||||||
| 3 | G Sabatini | 6 | 6 | ||||||||||||||||||||||||
| A Nishiya | 3 | 6 | 6 | A Nishiya | 3 | 2 | |||||||||||||||||||||
| K Adams | 6 | 3 | 4 | 3 | G Sabatini | 2 | 2 | ||||||||||||||||||||
| N Kijimuta | 6 | 6 | 8 | M J Fernández | 6 | 6 | |||||||||||||||||||||
| M Yanagi | 3 | 0 | N Kijimuta | 0 | 2 | ||||||||||||||||||||||
| Q | T Takagi | 3 | 0 | 8 | M J Fernández | 6 | 6 | ||||||||||||||||||||
| 8 | M J Fernández | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | Z Garrison | 6 | 6 | ||||||||||||||||||||||||
| A Grossman | 3 | 0 | 5 | Z Garrison | 6 | 6 | |||||||||||||||||||||
| W White | 7 | 6 | W White | 3 | 2 | ||||||||||||||||||||||
| LL | K Okamoto | 6 | 0 | 5 | Z Garrison | 6 | 6 | ||||||||||||||||||||
| N Sawamatsu | 6 | 4 | 2 | Q | M Van Nostrand | 1 | 0 | ||||||||||||||||||||
| Q | M Van Nostrand | 2 | 6 | 6 | Q | M Van Nostrand | 6 | 7 | |||||||||||||||||||
| 4 | N Zvereva | 2 | 5 | ||||||||||||||||||||||||
| 5 | Z Garrison | 7 | 4 | 4 | |||||||||||||||||||||||
| 7 | L McNeil | 7 | 6 | 7 | L McNeil | 5 | 6 | 6 | |||||||||||||||||||
 N Provis | 5 | 2 | 7 | L McNeil | 6 | 6 | |||||||||||||||||||||
| Q | M Kidowaki | 6 | 3 | 1 | P Louie-Harper | 4 | 1 | ||||||||||||||||||||
| P Louie-Harper | 4 | 6 | 6 | 7 | L McNeil | 6 | 5 | 6 | |||||||||||||||||||
| E O'Neill | 7 | 3 | 3 | 2 | C Evert | 2 | 7 | 4 | |||||||||||||||||||
| Q | A Leand | 6 | 6 | 6 | Q | A Leand | 2 | 6 | 3 | ||||||||||||||||||
| 2 | C Evert | 6 | 4 | 6 | |||||||||||||||||||||||
Chris Evert was the defending champion but did not compete that year.
Steffi Graf was the defending champion but did not compete that year.
Chris Evert was the defending champion and won in the final 6–0, 6–4 against Martina Navratilova.
Kathy Jordan and Martina Navratilova were the defending champions but only Navratilova competed that year with Lori McNeil.
Monica Seles was the defending champion but did not compete that year.
Helena Suková was the defending champion but lost in the second round to Pascale Paradis.
Lori McNeil and Martina Navratilova were the defending champions but they competed with different partners that year, McNeil with Kathy Foxworth and Navratilova with Hana Mandlíková.
Martina Navratilova was the defending champion but lost in the semifinals to Gabriela Sabatini.
Zina Garrison and Eva Pfaff were the defending champions but did not compete that year.
Claudia Kohde-Kilsch was the defending champion but lost in the semifinals to Zina Garrison.
Martina Navratilova was the defending champion and won in the final 7–6, 6–2 against Raffaella Reggi.
Chris Evert was the defending champion of the singles event at the Virginia Slims of Los Angeles tennis tournament but did not compete that year.
Martina Navratilova was the defending champion but was beaten in the quarterfinals by Meredith McGrath, 6–7, 6–2, 6–4.
Lori McNeil was a defending champion at the time but was beaten in the 1993 semifinals by Miriam Oremans, 7–6, 7–6.
Martina Navratilova and Pam Shriver were the defending champions and won in the final 5–7, 6–4, 6–2 against Kathy Jordan and Elizabeth Smylie.
Martina Navratilova and Pam Shriver were the defending champions but lost in the semifinals to Gigi Fernández and Robin White.
Gigi Fernández and Martina Navratilova were the defending champions but lost in the third round to Katrina Adams and Manon Bollegraf.
Pam Shriver and Natasha Zvereva were the defending champions but they competed with different partners that year, Shriver with Martina Navratilova and Zvereva with Gigi Fernández.
Six-time defending champions Martina Navratilova and Pam Shriver successfully defended their title, defeating Patty Fendick and Jill Hetherington in the final, 3–6, 6–3, 6–2 to win the women's doubles tennis title at the 1989 Australian Open.
Lori McNeil and Rennae Stubbs were the defending champions but only McNeil competed that year. She competed with Martina Navratilova and won in the final against Pam Shriver and Elizabeth Smylie, 6–3, 6–4.