1989 Australian Men's Hardcourt Championships
| 1989 South Australian Open | |
|---|---|
| Date | 2 – 9 January |
| Edition | 12th |
| Category | Grand Prix circuit |
| Surface | Hard / Outdoor |
| Location | Adelaide, Australia |
| Venue | Memorial Drive Park |
| Champions | |
| Singles | |
 Mark Woodforde
|
|
| Doubles | |
 Neil Broad /  Stefan Kruger
|
|
The 1989 South Australian Open was a Grand Prix tennis circuit tournament played on outdoor hard courts at the Memorial Drive Park in Adelaide in Australia and was part of the 1989 Nabisco Grand Prix. The tournament ran from 2 through 9 January 1989.
Mark Woodforde won his 1st title of the year, and the 5th of his career.
Mark Woodforde defeated 
Patrik Kühnen 7–5, 1–6, 7–5
Neil Broad / Stefan Kruger defeated Mark Kratzmann / 
Glenn Layendecker 6–2, 7–6
...
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