Has an AFL game ever ended 166-39?
Exactly once. On June 29, 1996, Geelong beat Fitzroy 166-39, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 166-39 in league history.
That makes 166-39 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 167-39 has happened 1 times and 166-40 has happened 1 times.