# 1983 South Australian Open – Singles

Mike Bauer successfully defended his title, defeating Miloslav Mečíř 3–6, 6–4, 6–1 in the final.

## Seeds

* Chris Lewis (quarterfinals)
* Pat Cash (quarterfinals)
* Paul McNamee (semifinals)
* John Fitzgerald (second round)
* Mike Bauer (champion)
* Chip Hooper (quarterfinals)
* Wally Masur (first round)
* Brad Drewett (semifinals)

## 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 | Final |
| | Miloslav Mečíř | 6 | 6 | | | | | |
| 3 | Paul McNamee | 2 | 3 | | | | | |
| 3 | Paul McNamee | 2 | 3 | | Miloslav Mečíř | 6 | 4 | 1 |
| | | | | 5 | Mike Bauer | 3 | 6 | 6 |
| 8 | Brad Drewett | 6 | 4 | 5 | Mike Bauer | 3 | 6 | 6 |
| 5 | Mike Bauer | 7 | 6 | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | C Lewis | 6 | 6 | | | | | | | | | | | | | | |
| | J Frawley | 3 | 4 | | 1 | C Lewis | 7 | 6 | | | | | | | | | |
| Q | B Derlin | 1 | 2 | | | P Doohan | 6 | 4 | | | | | | | | | |
| | P Doohan | 6 | 6 | | | | | | 1 | C Lewis | 5 | 7 | 4 | | | | |
| | J Vanier | 3 | 6 | 3 | | | | | | M Mečíř | 7 | 6 | 6 | | | | |
| | S Youl | 6 | 3 | 6 | | S Youl | 4 | 4 | | | | | | | | | |
| | M Mečíř | 6 | 3 | 6 | | M Mečíř | 6 | 6 | | | | | | | | | |
| 7 | W Masur | 4 | 6 | 3 | | | | | | | | | | | M Mečíř | 6 | 6 |
| 3 | P McNamee | 6 | 6 | 7 | | | | | | | | | | 3 | P McNamee | 2 | 3 |
| | S Brawley | 4 | 7 | 5 | 3 | P McNamee | 6 | 7 | | | | | | | | | |
| Q | J Smith | 6 | 5 | 6 | Q | J Smith | 3 | 6 | | | | | | | | | |
| | B Dyke | 1 | 7 | 4 | | | | | 3 | P McNamee | 6 | 6 | 6 | | | | |
| | J Canter | 6 | 2 | 6 | | | | | 6 | C Hooper | 7 | 4 | 3 | | | | |
| | C Johnstone | 4 | 6 | 3 | | J Canter | 6 | 2 | | | | | | | | | |
| | J Alexander | 6 | 6 | | 6 | C Hooper | 7 | 6 | | | | | | | | | |
| 6 | C Hooper | 7 | 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 8 | B Drewett | 6 | 6 | | | | | | | | | | | | | | |
| Q | A Lane | 4 | 4 | | 8 | B Drewett | 6 | 6 | | | | | | | | | |
| Q | G Whitecross | 7 | 7 | | Q | G Whitecross | 3 | 4 | | | | | | | | | |
| | C Fancutt | 6 | 5 | | | | | | | 8 | B Drewett | 7 | 6 | | | | |
| | L Shiras | 6 | 7 | | | | | | | | L Shiras | 5 | 4 | | | | |
| | R Frawley | 4 | 6 | | | L Shiras | 6 | 6 | 7 | | | | | | | | |
| | A Andrews | 6 | 6 | 4 | 4 | J Fitzgerald | 4 | 7 | 6 | | | | | | | | |
| 4 | J Fitzgerald | 4 | 7 | 6 | | | | | | | | | | 8 | B Drewett | 6 | 4 |
| 5 | M Bauer | 6 | 6 | | | | | | | | | | | 5 | M Bauer | 7 | 6 |
| | M Brunnberg | 3 | 2 | | 5 | M Bauer | 6 | 6 | | | | | | | | | |
| | D Mustard | 6 | 6 | | | D Mustard | 4 | 4 | | | | | | | | | |
| | C A Miller | 4 | 2 | | | | | | | 5 | M Bauer | 7 | 7 | | | | |
| | J Austin | 2 | 2 | | | | | | | 2 | P Cash | 6 | 5 | | | | |
| | L Courteau | 6 | 6 | | | L Courteau | 2 | 2 | | | | | | | | | |
| | L Bourne | 4 | 3 | | 2 | P Cash | 6 | 6 | | | | | | | | | |
| 2 | P Cash | 6 | 6 | | | | | | | | | | | | | | |