Has an AFL game ever ended 100-42?
Exactly once. On May 13, 1939, Carlton beat Footscray 100-42, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 100-42 in league history.
That makes 100-42 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 101-42 has happened 1 times and 100-43 has happened 1 times.