Has an AFL game ever ended 178-99?
Exactly once. On June 5, 1982, Hawthorn beat Melbourne 178-99, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 178-99 in league history.
That makes 178-99 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 179-99 has happened never and 178-100 has happened never.