
ELO Calculator ( version*) 
  This is an unofficial rating calculator for ELO rating.
It calculates how your ELO rating will change after you participated in a chess tournament (and before your new official ELO is published on ratings.fide.com).
Enter below your current ELO, the number of points you won in the tournament, the rating of the opponents whom you played, your Kfactor** and click the 'Calculate' button. 


* Some more interesting functionallity has yet to come (for example  enter average rating of your expected tournament opponents and see the probability distribution of your new ELO).
** Note, that FIDE changed the Kfactors as of July 2014 (see FIDE rating regulations  chapter 8.56):
K = 40 for a player new to the rating list until he has completed events with at least 30 games
K = 20 as long as a player's rating remains under 2400.
K = 10 once player's rating reached 2400.
K = 40 for all players until their 18th birthday, as long as their rating remains under 2300.
