# Thread: Mysterious K.

1. ## Mysterious K.

I have seen a new and mysterious coefficient, K = 33

https://ratings.fide.com/individual_...iod=2017-08-01

8.56
K is the development coefficient.
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 a player's published rating has reached 2400 and remains at that level subsequently, even if the rating drops below 2400.
K = 40 for all players until their 18th birthday, as long as their rating remains under 2300.
If the number of games (n) for a player on any list for a rating period multiplied by K (as defined above) exceeds 700, then K shall be the largest whole number such that K x n does not exceed 700.

2. If the number of games (n) for a player on any list for a rating period multiplied by K (as defined above) exceeds 700, then K shall be the largest whole number such that K x n does not exceed 700.
The player has 21 games for the rating period so for this rating period their K is 33.

3. Thanks Kevin for that clarification.

4. Originally Posted by DontAcceptDraw
I have seen a new and mysterious coefficient, K = 33

https://ratings.fide.com/individual_...iod=2017-08-01

Here are the minutes from the Baku Meeting regarding this which you also attended: https://www.fide.com/images/stories/...6/Annex_78.pdf

I refer specifically to 8.56 on Session 2 of the minutes.

lost

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