Has an AFL game ever ended 88-30?
Exactly once. On July 20, 1996, Geelong beat Melbourne 88-30, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 88-30 in league history.
That makes 88-30 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 89-30 has happened never and 88-31 has happened never.