Has an AFL game ever ended 161-73?
Exactly once. On August 28, 1982, Hawthorn beat St Kilda 161-73, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 161-73 in league history.
That makes 161-73 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 162-73 has happened never and 161-74 has happened never.