Has an AFL game ever ended 163-91?
Exactly once. On May 20, 1995, Geelong beat Richmond 163-91, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 163-91 in league history.
That makes 163-91 the 3883rd most common final score out of 6,649 that have ever occurred in AFL. One point away, 164-91 has happened never and 163-92 has happened never.