Has an AFL game ever ended 124-45?
Exactly once. On July 29, 1933, Fitzroy beat St Kilda 124-45, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 124-45 in league history.
That makes 124-45 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 125-45 has happened 1 times and 124-46 has happened never.