Has an AFL game ever ended 124-76?
Exactly once. On August 11, 2002, Adelaide beat Essendon 124-76, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 124-76 in league history.
That makes 124-76 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 125-76 has happened 3 times and 124-77 has happened 1 times.