Chess.com rating vs. "real" OTB rating!

Hi friends,

I understand that a lot have been discussed about how turn-based correspondence chess is different from OTB chess. My query is, whatever be the differences that exist between the two, I feel both the players are subjected to the "same" set of differences in terms of situational pressure, time controls, other psychological aspects etc. etc. and that these effects in the longer run will cancel out each other!

What I would like to see is, if there is a theoritical correlation between say Chess.com rating and OTB rating (keeping all other things constant as explained above) and what is that relation?

1. There should definitely be more than enough data here with so many players to arrive at a validation and as they say data never lies!

2. This will give a "thumb rule" equation for players who are only internet players to know their "real" rating.

It would be great if players here who also have a "real" OTB rating post here their current chess.com rating and their OTB rating. At the end of it, with sufficient sample size of data, we can arrive at a regression equation something like, 3*O = 2*C + 200 where O=OTB rating and C = Chess.com rating!

Would be great to have some opinions and comments.

Thanks,

P.S: Please post the FIDE ratings (after conversion from other ratings like USCF etc.)

P.P.S: Seriously, didnt have a better thing to think about since morning.

Sorry tonydal, I didnt get what you are saying. Is it the conversion of USCF rating to FIDE rating that you have given here?

And it would be nice if you could post your actual "OTB" FIDE rating and your present turn-based chess.com rating here and kickstart the data collection.

Cheers,

I think ratings here are too high in general. Many players have 20+ games going at once and boost their ratings simply from others taking abandoning their games.

i believe OTB ratings are the main ways to judge one's actual skill..

@tonydal, I got it. For conversion sake, can you tell how will FIDE and USCF ratings be related?

@Xoise, well put. But as I have said in my first post, dont you think even all these effects will cancel out each other in the long run (meaning with sufficiently large no. of data points). For example, dont you think just like some people who "get" points from timeouts and abondoning games, there are also the other equivalent half who "lose" ratings becoz of the same reason!

In effect, the final correlation/equation that we will get will take into all these into effect in my opinion.

Cheers,

Apparently my "FIDE" grading (converted from ECF), is nearly 100 pts above my chess.com rating.

Make of that what you will.

My FIDE Rating: 1345

My Chess.com rating(Standard): 1600

My Canadian OTB rating peaked (twenty-odd years ago) at around 2050. After a twenty-four year absense from the game, I registered on chess.com, was assigned the usual 1200 start-off rating... and gained over 800 rating points in the first three months.

After such a long absence from the game, I seriously doubt that I'm still a 2000+ player, so I also suspect that online ratings are a bit inflated.

My USCF rating is several hundred below my Chess.com Online rating right now so in my case the Online chess ratings at Chess.com are either inflated or I've improved substantially over the past two months. While I suppose its possible I have I suspect its mostly because the ratings are inflated here in comparison.

My USCF rating 505 my chess.com rating 1073 after about 100 games.