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Rating difference between LiChess and Chess.com is about 100 points? (Chess.com Elo is lower)

I have like 1750. But I rarely play there.

I have like 1750. But I rarely play there.

@pointlesswindows said in #16:

"ELO doesn't stand for anything."

Wrong. It stands for Electric Light Orchestra.

Yes it does!
It is either real or its a dream, there's nothing that is in between.

@pointlesswindows said in #16: > "ELO doesn't stand for anything." > > Wrong. It stands for Electric Light Orchestra. Yes it does! It is either real or its a dream, there's nothing that is in between.

The graphics of the #11 petri999 post in this thread of the repost of the Reddit thread is very good. It basically says that plus or minus about 200 points plus a constant, your LiChess blitz is roughly the same as your Fide rating. That sounds imprecise at first glance, but it is a tight spread, since Fide rating depends on geographic location (harder and therefore a lower Elo it seems in India, Philippines, Europe and easier and therefore a higher or inflated Elo in the USA). Further, over time, there is ratings deflation as Fide stats expert Ken Regan has found, that is, Regan has found Elo has dropped over the years, making today's higher Elos all the more impressive. Rating deflation will further affect the ratings pool as more and more young people play due to the post-2020 pandemic boom in chess, they should over time lower the collective Elo of every pool of players throughout the world. As I said earlier, if you can score 1500 Elo in a FIDE international tournament in some parts of the world, you are in no way a mere "Class C" player, which historically was just an average player, but you're probably quite good at chess.

The graphics of the #11 petri999 post in this thread of the repost of the Reddit thread is very good. It basically says that plus or minus about 200 points plus a constant, your LiChess blitz is roughly the same as your Fide rating. That sounds imprecise at first glance, but it is a tight spread, since Fide rating depends on geographic location (harder and therefore a lower Elo it seems in India, Philippines, Europe and easier and therefore a higher or inflated Elo in the USA). Further, over time, there is ratings deflation as Fide stats expert Ken Regan has found, that is, Regan has found Elo has dropped over the years, making today's higher Elos all the more impressive. Rating deflation will further affect the ratings pool as more and more young people play due to the post-2020 pandemic boom in chess, they should over time lower the collective Elo of every pool of players throughout the world. As I said earlier, if you can score 1500 Elo in a FIDE international tournament in some parts of the world, you are in no way a mere "Class C" player, which historically was just an average player, but you're probably quite good at chess.

Ah, comparing apples and oranges again, are we?

Ah, comparing apples and oranges again, are we?

@XsYyLaxa said in #10:

That makes sense, but how do you account for the apparent convergence of Elo above 2200, as rumor has it, between Chess . com and LiChess? Unless that's unfounded speculation, or, perhaps the initial conditions matter little for those small number of players that reach levels above 2200?

The thing to realize is that rating systems, be it elo, Glicko-1, Glicko-2, and be it with a starting rating of 1200 or 1500, are fundamentally incapable of measuring playing strength. (!!) That's not what rating systems do.

What rating systems do is measure performance relative to other players in the same rating pool, and specifically performance relative to players around your rating range.

This means it makes no sense to compare. It's not like you can translate chess com blitz to lichess blitz in the same way that you can translate feet to meters. And that's because it's not just different units. You're actually measuring different things.

@XsYyLaxa said in #10: > That makes sense, but how do you account for the apparent convergence of Elo above 2200, as rumor has it, between Chess . com and LiChess? Unless that's unfounded speculation, or, perhaps the initial conditions matter little for those small number of players that reach levels above 2200? The thing to realize is that rating systems, be it elo, Glicko-1, Glicko-2, and be it with a starting rating of 1200 or 1500, are fundamentally incapable of measuring playing strength. (!!) That's not what rating systems do. What rating systems do is measure performance relative to other players in the same rating pool, and specifically performance relative to players around your rating range. This means it makes no sense to compare. It's not like you can translate chess com blitz to lichess blitz in the same way that you can translate feet to meters. And that's because it's not just different units. You're actually measuring different things.

Difference of 100 points? Are you joking? I would say at least 500 points

Difference of 100 points? Are you joking? I would say at least 500 points

@Kavykki said in #27:

Difference of 100 points? Are you joking? I would say at least 500 points

There is only a difference for players who play on both sites. Which is extremely silly to begin with.

@Kavykki said in #27: > Difference of 100 points? Are you joking? I would say at least 500 points There is only a difference for players who play on both sites. Which is extremely silly to begin with.

@XsYyLaxa

On that first chart you linked, it lists both "FIDE" and "US FIDE". What's up with that?

@XsYyLaxa On that first chart you linked, it lists both "FIDE" and "US FIDE". What's up with that?

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