Has an AFL game ever ended 128-109?
Exactly once. On May 19, 2012, Essendon beat Richmond 128-109, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 128-109 in league history.
That makes 128-109 the 3884th most common final score out of 6,649 that have ever occurred in AFL. One point away, 129-109 has happened 1 times and 128-110 has happened never.