Has an AFL game ever ended 69-50?
Exactly once. On July 4, 1964, Essendon beat Fitzroy 69-50, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 69-50 in league history.
That makes 69-50 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 70-50 has happened 4 times and 69-51 has happened 3 times.