Has an AFL game ever ended 82-57?
It has. 82-57 has been a AFL final 5 times in 16,622 games. The first was Geelong beat Footscray on July 1, 1933; the latest was Sydney beat St Kilda on September 10, 2011.
That makes 82-57 the 589th most common final score out of 6,607 that have ever occurred in AFL. One point away, 83-57 has happened 3 times and 82-58 has happened 7 times. At one point the score disappeared for 45 years, between 1966 and 2011.