Ratings calculation


Ratings calculation

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Lazaro Munoz    (2010-04-06)
Ratings calculation

I don't quite understand the way that ratings are calculated (for initial ratings).

I entered my first chess tournament with an initial rating of 1785 (my ICCF rating at the time). I won 5 games and drew 1 and got a rating of 1837.

My fellow tournament entry Chris Brooks entered also for the first tournament with an initial rating of 1800. He won 4 games and lost 2 and got a rating of 1906?! No complains to him, only to the rating system.

Is there some draw penalty built in? We played the same set of players(so the tournament average rating is exactly the same) and played the same number of games (and no more, I checked this has so far been our only tournament for both of us), yet with my extra point and half I wound up with a much lower rating.

What's up with that?

Thibault de Vassal    (2010-04-06 15:41:33)
Ratings calculation

Hi Lazaro, correspondence chess ratings are not calculated in real time, it is calculated every 2 months, see the complete rules :


You may see an estimation of your future rating (taking account of the games played after the last rating calculation) at :


A 1885 rating should look like more logical to you :)

Lazaro Munoz    (2010-04-07 04:46:48)
Ratings calculation

Thanks for explanation. --laz