Has an AFL game ever ended 127-42?
Exactly once. On June 21, 1998, St Kilda beat Melbourne 127-42, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 127-42 in league history.
That makes 127-42 the 3884th most common final score out of 6,649 that have ever occurred in AFL. One point away, 128-42 has happened 1 times and 127-43 has happened never.