Has an AFL game ever ended 91-82?
It has. 91-82 has been a AFL final 5 times in 16,622 games. The first was St Kilda beat Essendon on May 28, 1927; the latest was Fremantle beat Geelong on May 28, 2005.
That makes 91-82 the 589th most common final score out of 6,607 that have ever occurred in AFL. One point away, 92-82 has happened 3 times and 91-83 has happened 3 times. At one point the score disappeared for 57 years, between 1938 and 1995.