Has an AFL game ever ended 149-138?
Exactly once. On July 23, 1983, St Kilda beat Fitzroy 149-138, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 149-138 in league history.
That makes 149-138 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 150-138 has happened never and 149-139 has happened never.