Has an AFL game ever ended 137-36?
Exactly once. On July 27, 2013, Geelong beat St Kilda 137-36, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 137-36 in league history.
That makes 137-36 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 138-36 has happened never and 137-37 has happened never.