Has an AFL game ever ended 159-109?
Exactly once. On August 13, 1989, Sydney beat St Kilda 159-109, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 159-109 in league history.
That makes 159-109 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 160-109 has happened 1 times and 159-110 has happened never.