Has an AFL game ever ended 189-65?
Exactly once. On July 27, 1986, Sydney beat Melbourne 189-65, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 189-65 in league history.
That makes 189-65 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 190-65 has happened never and 189-66 has happened never.