The 1989 NBL season was the 11th season of competition since its establishment in 1979. A total of 13 teams contest the league.
The 1989 regular season took place over 22 rounds between 20 April 1989 and 16 September 1989.
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This is the ladder at the end of season, before the finals. The top 6 teams qualified for the finals series.
The NBL tie-breaker system as outlined in the NBL Rules and Regulations states that in the case of an identical winâÂÂloss record, the results in games played between the teams will determine order of seeding.
<small><sup>1</sup>Perth Wildcats won Head-to-Head (2-0). </small>
<small><sup>2</sup>Head-to-Head between Sydney Kings and Adelaide 36ers (1-1). Sydney Kings won For and Against (+7).</small>
<small><sup>3</sup>Head-to-Head between Westside Saints and Hobart Tassie Devils (1-1). Westside Saints won For and Against (+5).</small>
There were two best of three Elimination finals, four best of three Semifinals, and then best of three grand final series.
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