Has an AFL game ever ended 111-91?
Yes. AFL has seen a final score of 111-91 4 times. It first happened on May 9, 1931, when Footscray beat Sydney, and most recently on May 23, 2014, when Geelong beat North Melbourne.
That makes 111-91 the 947th most common final score out of 6,607 that have ever occurred in AFL. One point away, 112-91 has happened 2 times and 111-92 has happened 1 times. At one point the score disappeared for 41 years, between 1949 and 1990.