Has an AFL game ever ended 150-50?
Exactly once. On May 5, 1945, Essendon beat Carlton 150-50, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 150-50 in league history.
That makes 150-50 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 151-50 has happened 1 times and 150-51 has happened 1 times.