Has an AFL game ever ended 146-39?
Exactly once. On July 24, 1948, Richmond beat St Kilda 146-39, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 146-39 in league history.
That makes 146-39 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 147-39 has happened 1 times and 146-40 has happened never.