What does the number between brakets mean

In each player profile, there is an avarage classment (wich is in fact the actual classement in the ranking system), followed by a number in brackets. What does this second number mean?

it is the average of points that wins or loses in each game.

so, it is only the result of the formula:

(actual score - 100) / Number of played games ?


in that case, what is the purpose of such an indication?

Yes. Some players ask me to put it here.

Achiles(X)

Apparently the idea is that this might actually give you a better indication of how good or bad a player is than the raw score... yes, I don't see it either.

It's a good idea, but it's only a score. People who played many games has a low rate because it's dificcult mantain it high. It's another Achiles' public service work !!!!