Has an AFL game ever ended 26-25?
Exactly once. On June 7, 1902, Geelong beat Melbourne 26-25, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 26-25 in league history.
That makes 26-25 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 27-25 has happened 1 times and 26-26 has happened never.