Has an AFL game ever ended 189-89?
Exactly once. On May 7, 1977, Footscray beat Essendon 189-89, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 189-89 in league history.
That makes 189-89 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 190-89 has happened never and 189-90 has happened never.