Has an AFL game ever ended 39-28?
Exactly once. On August 22, 1931, Carlton beat Geelong 39-28, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 39-28 in league history.
That makes 39-28 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 40-28 has happened 1 times and 39-29 has happened never.