Has an AFL game ever ended 97-50?
Exactly once. On August 31, 1963, Melbourne beat Richmond 97-50, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 97-50 in league history.
That makes 97-50 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 98-50 has happened 5 times and 97-51 has happened 1 times.