Has an AFL game ever ended 68-14?
Exactly once. On May 5, 1906, Fitzroy beat St Kilda 68-14, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 68-14 in league history.
That makes 68-14 the 3884th most common final score out of 6,649 that have ever occurred in AFL. One point away, 69-14 has happened 1 times and 68-15 has happened never.