Errol, PF stands for Points For. It is determined by adding up the total amount of points your team scores each week. PA stands for Points Against. It is determined by adding up the total amount of points that was scored by your opponents each week. They would affect rank depending on what your league set as the Tie Breakers. For instance, if there are two teams with identical records, and Points For was one of the tie breakers, that team would have the better rank. Hope this helps