Paying members can see a small graph icon next to a BKR value on many pages (Main page, game pages, Ratings page etc.). Clicking this image will generate and display a graph of BKR history of the selected player and game type, so it can be used to analyze the changes of BKR value since the first finished rated game of this type.
(hide) If you need to find an older message from the selected user, click on his Profile and use the "show this user messages" link at the page top. (konec) (show all tips)