Has an AFL game ever ended 86-57?
It has. 86-57 has been a AFL final 2 times in 16,622 games. The first was Fitzroy beat Sydney on May 3, 1924; the latest was Carlton beat St Kilda on May 2, 1970.
That makes 86-57 the 2421st most common final score out of 6,607 that have ever occurred in AFL. One point away, 87-57 has happened 4 times and 86-58 has happened 4 times. At one point the score disappeared for 46 years, between 1924 and 1970.