# 1985 South Australian Open – Singles

Peter Doohan was the defending champion.
Eddie Edwards won the title, defeating Doohan 6–2, 6–4 in the final.

## Seeds

* n/a
* John Fitzgerald (quarterfinals)
* Jonathan Canter (first round)
* Amos Mansdorf (quarterfinals)
* Jeremy Bates (first round)
* Jonas Svensson (first round)
* Kelly Evernden (first round)
* Peter Doohan (final)

## 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 | Final | Final | Final | Final |
| | Wally Masur | 4 | 0$^r$ | | | | |
| 8 | Peter Doohan | 6 | 2 | | | | |
| 8 | Peter Doohan | 6 | 2 | 8 | Peter Doohan | 2 | 4 |
| | | | | Q | Eddie Edwards | 6 | 6 |
| Q | Eddie Edwards | 7 | 7 | Q | Eddie Edwards | 6 | 6 |
| Q | Christo Steyn | 6 | 6 | | | | |

### 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 |
| | J Frawley | 6 | 7 | | | | | | | | | | | | | | | |
| | D Cahill | 4 | 6 | | | J Frawley | 7 | 4 | 3 | | | | | | | | | |
| | M Bauer | 3 | 6 | | | W Masur | 6 | 6 | 6 | | | | | | | | | |
| | W Masur | 6 | 7 | | | | | | | | W Masur | 0 | 6 | 7 | | | | |
| Q | N Fulwood | 7 | 4 | 3 | | | | | | | R Saad | 6 | 4 | 6 | | | | |
| WC | B Scanlon | 6 | 6 | 6 | WC | B Scanlon | 3 | 5 | | | | | | | | | | |
| | R Saad | 6 | 7 | | | R Saad | 6 | 7 | | | | | | | | | | |
| 5 | J Bates | 3 | 6 | | | | | | | | | | | | | W Masur | 4 | 0$^r$ |
| 4 | A Mansdorf | 6 | 6 | 6 | | | | | | | | | | | 8 | P Doohan | 6 | 2 |
| | H van Boeckel | 7 | 4 | 4 | 4 | A Mansdorf | 3 | 6 | 6 | | | | | | | | | |
| | R Osterthun | 7 | 3 | 1 | | M Schapers | 6 | 2 | 1 | | | | | | | | | |
| | M Schapers | 6 | 6 | 6 | | | | | | 4 | A Mansdorf | 3 | 4 | | | | | |
| Q | A Emerson | 2 | 3 | | | | | | | 8 | P Doohan | 6 | 6 | | | | | |
| | B Drewett | 6 | 6 | | | B Drewett | 3 | 3 | | | | | | | | | | |
| | F González | 4 | 6 | | 8 | P Doohan | 6 | 6 | | | | | | | | | | |
| 8 | P Doohan | 6 | 7 | | | | | | | | | | | | | | | |

### 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 7 | K Evernden | 6 | 2 | 6 | | | | | | | | | | | | | | |
| | M Flur | 3 | 6 | 2 | 7 | K Evernden | 6 | 3 | 1 | | | | | | | | | |
| Q | E Edwards | 6 | 6 | | Q | E Edwards | 2 | 6 | 6 | | | | | | | | | |
| WC | S Barr | 0 | 4 | | | | | | | Q | E Edwards | 6 | 6 | | | | | |
| | D Visser | 3 | 4 | | | | | | | | L Shiras | 2 | 2 | | | | | |
| | L Shiras | 6 | 6 | | | L Shiras | 7 | 7 | | | | | | | | | | |
| WC | M Woodforde | 6 | 6 | | WC | M Woodforde | 5 | 6 | | | | | | | | | | |
| 3 | J Canter | 4 | 2 | | | | | | | | | | | | Q | E Edwards | 7 | 7 |
| 6 | J Svensson | 4 | 2 | | | | | | | | | | | | Q | C Steyn | 6 | 6 |
| Q | C Steyn | 6 | 6 | | Q | C Steyn | 6 | 7 | | | | | | | | | | |
| | L Bourne | 4 | 7 | 4 | | N Aerts | 2 | 5 | | | | | | | | | | |
| | N Aerts | 6 | 5 | 6 | | | | | | Q | C Steyn | 3 | 7 | 6 | | | | |
| | C Dowdeswell | 3 | 6 | 6 | | | | | | 2 | J Fitzgerald | 6 | 6 | 2 | | | | |
| | T Benhabiles | 6 | 4 | 7 | | T Benhabiles | 7 | 2 | 4 | | | | | | | | | |
| | P Carlsson | 5 | 5 | | 2 | J Fitzgerald | 6 | 6 | 6 | | | | | | | | | |
| 2 | J Fitzgerald | 7 | 7 | | | | | | | | | | | | | | | |