Has an AFL game ever ended 136-73?
Exactly once. On May 28, 1988, Sydney beat Richmond 136-73, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 136-73 in league history.
That makes 136-73 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 137-73 has happened 4 times and 136-74 has happened never.