Has an AFL game ever ended 89-79?
Yes. AFL has seen a final score of 89-79 7 times. It first happened on August 5, 1922, when Richmond beat Geelong, and most recently on April 14, 2002, when Hawthorn beat Fremantle.
That makes 89-79 the 191st most common final score out of 6,607 that have ever occurred in AFL. One point away, 90-79 has happened 7 times and 89-80 has happened 8 times. At one point the score disappeared for 31 years, between 1943 and 1974.