1982: Tschaicon, Melbourne
(The Australian newszine Thyme records that Tschaicon was the "First Australasian Science Fiction Convention", the relevant constitution having had "Australian" replaced with "Australasian" throughout; that the award categories used "Australasian" rather than "Australian"; and that the constitution was modified, at Tschaicon, to have "Australasian" changed back to "Australian".)
Read more about this topic: Ditmar Award Results