Has an AFL game ever ended 159-90?
Exactly once. On May 19, 2002, Footscray beat Sydney 159-90, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 159-90 in league history.
That makes 159-90 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 160-90 has happened never and 159-91 has happened never.