Has an AFL game ever ended 137-86?
Exactly once. On May 3, 1975, Richmond beat Sydney 137-86, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 137-86 in league history.
That makes 137-86 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 138-86 has happened 3 times and 137-87 has happened 2 times.