# 1989 Australian Indoor Championships – Singles

Slobodan Živojinović was the defending champion but lost in the quarterfinals to Lars-Anders Wahlgren.
Ivan Lendl won in the final 6–2, 6–2, 6–1 against Wahlgren.

## Seeds

* Ivan Lendl (champion)
* Jakob Hlasek (first round)
* Carl-Uwe Steeb (second round)
* John Fitzgerald (first round)
* Slobodan Živojinović (quarterfinals)
* Eric Jelen (first round)
* Richard Matuszewski (first round)
* Wally Masur (second round)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| 1 | Ivan Lendl | 6 | 6 | | | | | | |
| SE | Niclas Kroon | 1 | 1 | | | | | | |
| SE | Niclas Kroon | 1 | 1 | | 1 | Ivan Lendl | 6 | 6 | 6 |
| | | | | | Q | Lars-Anders Wahlgren | 2 | 2 | 1 |
| Q | Lars-Anders Wahlgren | 6 | 4 | 6 | Q | Lars-Anders Wahlgren | 2 | 2 | 1 |
| | Johan Anderson | 3 | 6 | 4 | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | I Lendl | 6 | 6 | | | | | | | | | | | | | | | |
| Q | M Menezes | 2 | 0 | | 1 | I Lendl | 6 | 6 | | | | | | | | | | |
| | D Pate | 6 | 2 | 4 | | L Shiras | 2 | 4 | | | | | | | | | | |
| | L Shiras | 2 | 6 | 6 | | | | | | 1 | I Lendl | 6 | 6 | | | | | |
| | T Högstedt | 7 | 6 | | | | | | | | T Högstedt | 2 | 2 | | | | | |
| | H de la Peña | 5 | 2 | | | T Högstedt | 5 | 6 | 6 | | | | | | | | | |
| | B Drewett | 4 | 4 | | 8 | W Masur | 7 | 4 | 2 | | | | | | | | | |
| 8 | W Masur | 6 | 6 | | | | | | | | | | | | 1 | I Lendl | 6 | 6 |
| 4 | J Fitzgerald | 3 | 6 | 4 | | | | | | | | | | | SE | N Kroon | 1 | 1 |
| SE | N Kroon | 6 | 2 | 6 | SE | N Kroon | 6 | 6 | | | | | | | | | | |
| | D Cahill | 6 | 6 | | | D Cahill | 0 | 4 | | | | | | | | | | |
| WC | V Amritraj | 4 | 0 | | | | | | | SE | N Kroon | 0 | 7 | 7 | | | | |
| | M Woodforde | 6 | 7 | | | | | | | | M Woodforde | 6 | 5 | 6 | | | | |
| WC | S Barr | 3 | 6 | | | M Woodforde | 1 | 6 | 6 | | | | | | | | | |
| | R Fromberg | 4 | 7 | 6 | | R Fromberg | 6 | 2 | 3 | | | | | | | | | |
| 6 | E Jelen | 6 | 6 | 2 | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 5 | S Živojinović | 5 | 6 | 6 | | | | | | | | | | | | | | |
| Q | D Patten | 7 | 2 | 4 | 5 | S Živojinović | 4 | 6 | 6 | | | | | | | | | |
| | G Michibata | 1 | 6 | 5 | Q | A Mronz | 6 | 1 | 4 | | | | | | | | | |
| Q | A Mronz | 6 | 2 | 7 | | | | | | 5 | S Živojinović | 3 | 6 | | | | | |
| Q | L-A Wahlgren | 7 | 3 | 6 | | | | | | Q | L-A Wahlgren | 6 | 7 | | | | | |
| | G Connell | 6 | 6 | 4 | Q | L-A Wahlgren | 1 | 6 | 6 | | | | | | | | | |
| | T Woodbridge | 1 | 4 | | 3 | C-U Steeb | 6 | 4 | 4 | | | | | | | | | |
| 3 | C-U Steeb | 6 | 6 | | | | | | | | | | | Q | L-A Wahlgren | 6 | 4 | 6 |
| 7 | R Matuszewski | 2 | 2 | | | | | | | | | | | | J Anderson | 3 | 6 | 4 |
| | J Anderson | 6 | 6 | | | J Anderson | 6 | 6 | | | | | | | | | | |
| WC | S Youl | 2 | 4 | | | C Saceanu | 1 | 3 | | | | | | | | | | |
| | C Saceanu | 6 | 6 | | | | | | | | J Anderson | 6 | 6 | | | | | |
| | J-P Fleurian | 4 | 6 | 4 | | | | | | | J Stoltenberg | 3 | 3 | | | | | |
| | J Stoltenberg | 6 | 3 | 6 | | J Stoltenberg | 6 | 7 | 6 | | | | | | | | | |
| | M Kratzmann | 6 | 2 | 7 | | M Kratzmann | 7 | 6 | 3 | | | | | | | | | |
| 2 | J Hlasek | 1 | 6 | 6 | | | | | | | | | | | | | | |