Has an AFL game ever ended 92-86?
Exactly once. On July 15, 1989, Fitzroy beat St Kilda 92-86, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 92-86 in league history.
That makes 92-86 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 93-86 has happened 3 times and 92-87 has happened 9 times.