Has an AFL game ever ended 38-19?
Exactly once. On May 28, 1898, Fitzroy beat Melbourne 38-19, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 38-19 in league history.
That makes 38-19 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 39-19 has happened never and 38-20 has happened never.