Has an AFL game ever ended 58-23?
Exactly once. On July 15, 1899, Geelong beat Fitzroy 58-23, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 58-23 in league history.
That makes 58-23 the 3884th most common final score out of 6,649 that have ever occurred in AFL. One point away, 59-23 has happened never and 58-24 has happened never.