it is the result of the ranking place of a team in these 3 catagory :
rank in the average % record
rank in the average points
rank in the average bankroll
in the division that you are .
so example :
if you are 3th in the avg. % record , your score = 3
if you are 5 in the avg. points, your score = 5
if you are 2 in the avg. bankroll, your score= 2
so 3+5+2= 10
and 10 divided by 3 = 3.333 team total score !!
the lower your score is , the higher you are in the ranking !!!
P.S. the average points are not write in the leader board so if you want to know it , you have to calcul it manually.