Has an AFL game ever ended 71-37?
Exactly once. On June 18, 1966, Essendon beat Footscray 71-37, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 71-37 in league history.
That makes 71-37 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 72-37 has happened 1 times and 71-38 has happened 3 times.