I treat each set of 18 games (19 games in finals) from CL3 as a single game between two clans where each clan either wins, loses or ties.The points a clan gets for each set is a function of their opponents rating at that time.The rating of a clan is the weighted average of all such accumulated points.(weighting is by games in the set, so reg season sets are weighted at 18, finals weighted at 19)I