Has an AFL game ever ended 87-27?
Exactly once. On September 9, 1905, St Kilda beat Geelong 87-27, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 87-27 in league history.
That makes 87-27 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 88-27 has happened never and 87-28 has happened 2 times.