Has an AFL game ever ended 123-62?
Exactly once. On August 24, 1957, Essendon beat Carlton 123-62, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 123-62 in league history.
That makes 123-62 the 3883rd most common final score out of 6,649 that have ever occurred in AFL. One point away, 124-62 has happened 3 times and 123-63 has happened 4 times.