Has an AFL game ever ended 100-30?
Exactly once. On May 21, 1927, Richmond beat Footscray 100-30, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 100-30 in league history.
That makes 100-30 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 101-30 has happened never and 100-31 has happened 1 times.