Has an AFL game ever ended 121-68?
Exactly once. On June 7, 1980, Richmond beat Sydney 121-68, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 121-68 in league history.
That makes 121-68 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 122-68 has happened 1 times and 121-69 has happened 2 times.