Has an AFL game ever ended 52-29?
Exactly once. On September 3, 1910, Sydney beat Fitzroy 52-29, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 52-29 in league history.
That makes 52-29 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 53-29 has happened 2 times and 52-30 has happened 2 times.