What is the rating system doing?

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Avatar of TheSoldierOfTheNoobs

I won my game and noticed my lower-rated opponent lost 32 points while I gained only 12.

Avatar of unknownuser0008

They have a new account.

Avatar of unknownuser0008

Or a bug.

Avatar of Martin_Stahl

The site uses the Glicko rating system that includes a measure of rating uncertainty called the rating deviation (RD) value. That determines the rating change for each player.

https://support.chess.com/article/210-how-do-ratings-work-on-chess-com

So, that's not to be unexpected and isn't a bug

Avatar of TheSoldierOfTheNoobs

They joined in 2018

Avatar of TheSoldierOfTheNoobs
Martin_Stahl wrote:

The site uses the Glicko rating system that includes a measure of rating uncertainty called the rating deviation (RD) value. That determines the rating change for each player.

https://support.chess.com/article/210-how-do-ratings-work-on-chess-com

So, that's not to be unexpected and isn't a bug

Oh, ok, thanks.

Avatar of Martin_Stahl
Kindhorse81 wrote:

They joined in 2018

They don't have many Rapid games and haven't played any for 4 months. Gaps in play in a pool cause the RD value to increase and a lower number of games is also going to have a higher RD value.

Avatar of StevoWard

It would be nice if Chess.com would show our RD for each rating type. (Rapid, Blitz, etc.) I think it used to long ago, and I know it is available through API calls.

Avatar of StevoWard

BONUS Feature request: If we could get our potential ratings change as a tooltip before we accept a challenge and/or have a tool that showed what our potential rating change is vs various opponents when we look at their profile or the little profile pop up whenever we click on their userid. That would be cool

Avatar of Rooster-1992

I never knew that about the RD. Thanks for the info

Avatar of Rooster-1992

Also if anyone wants to join my club, it’s Alice In Chains chess. Thx

Avatar of Threepackabz

That have happened to me too