Has an AFL game ever ended 83-23?
Exactly once. On August 22, 1903, Fitzroy beat Sydney 83-23, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 83-23 in league history.
That makes 83-23 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 84-23 has happened never and 83-24 has happened never.