Has an AFL game ever ended 131-87?
Exactly once. On May 4, 2013, Geelong beat Richmond 131-87, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 131-87 in league history.
That makes 131-87 the 3884th most common final score out of 6,649 that have ever occurred in AFL. One point away, 132-87 has happened never and 131-88 has happened 3 times.