Has an AFL game ever ended 58-40?
Exactly once. On July 15, 1961, Hawthorn beat Melbourne 58-40, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 58-40 in league history.
That makes 58-40 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 59-40 has happened 2 times and 58-41 has happened 1 times.