Has an AFL game ever ended 143-73?
Exactly once. On May 13, 2005, Geelong beat Carlton 143-73, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 143-73 in league history.
That makes 143-73 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 144-73 has happened never and 143-74 has happened 2 times.