https://www.youtube.com/watch?v=XRnVAvCiEck&t=1352s
Fabio explains it well.
Inflated ELO Ratings at Chess.com....WHY ?
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I think that Chess.com needs to change their ELO rating system to the same mathematical settings that FIDE is using. This should correct a big part of the problem!
ACD
As Fabiano Caruana pointed out in the link I gave it is impossible to have any consistent ratings with rapid all over the board in time controls. He doesn't even consider that "real chess." Also "farming" is a major factor not found in classical over the board.
Fabio is not a statistician and knows squat about setting ELO tables, that has to be done by somebody with a Ph.D in statistics and knowledge of how a matrix can be setup within the Chess.com software.
ACD
I don't know if the formula that FIDE uses is different than CHess.com; however I do know the pool of players is different.
This would mean different numbers, even if the formula is the same.
Dec 9, 2023
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#7
FIDE rating formula is slightly different from USCF and slightly different from chess.com (which uses a glicko rating system). The biggest reason for the rating difference isn't inflation though - it is the fact that online has the ability to play WAY more games than OTB chess tournaments and in those tournaments you don't get to choose your opponents. Think of someone like top 10 in the chess world for rating: in OTB tournaments, they must beat much lower rated players in the earlier rounds; it might literally take months before they play even one game with someone near their own rating!
This makes it difficult to gain rating points. Conversely, online you can just send rated challenges to friends, or filter rating parameters. That is a big reason why online rating is easier to gain.
Hi,
Why are ELO ratings inflated at Chess.com.
For example Nakamura and Carlsen have FIDE ELO ratings of 2788 and 2830, respectively. However, on Chess.com their ELO ratings are 3332 and 3340, respectively!
Why are the ELOs not reconciling?
Thank you,
ACD