Has an AFL game ever ended 112-61?
Exactly once. On July 12, 2003, Sydney beat St Kilda 112-61, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 112-61 in league history.
That makes 112-61 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 113-61 has happened never and 112-62 has happened 2 times.