Has an AFL game ever ended 64-19?
Exactly once. On May 15, 1897, Melbourne beat Geelong 64-19, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 64-19 in league history.
That makes 64-19 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 65-19 has happened 1 times and 64-20 has happened never.