Has an AFL game ever ended 50-49?
It has. 50-49 has been a AFL final 2 times in 16,622 games. The first was Sydney beat Essendon on July 22, 1905; the latest was Carlton beat Essendon on June 7, 1958.
That makes 50-49 the 2421st most common final score out of 6,607 that have ever occurred in AFL. One point away, 51-49 has happened 3 times and 50-50 has happened 5 times. At one point the score disappeared for 53 years, between 1905 and 1958.