Elo rating system this isn't true.
Glicko rating system, (which chess.com uses) assumes a rating is unreliable for new and inactive members. The more "unreliable" or inactive the rating, the larger the multiplier for points won and lost.
Elo rating system this isn't true.
Glicko rating system, (which chess.com uses) assumes a rating is unreliable for new and inactive members. The more "unreliable" or inactive the rating, the larger the multiplier for points won and lost.
In the Austrian Elo-system, the k-factor depends on your own ELO. If you have a low rating, the k-factor is high and the rating will fluctuate more. If your rating is higher, the k-factor decreases and ratings become more stable.
With FIDE-ELO, the k-factor only depends on number of games played, if you are below 2400 rating. Below 30 games, the factor is 25. After 30 games, it is 15.
If your rate realy is high (for example 2500) or low (for example 700), you must reach it immediately!
Elo rating system this isn't true.
Glicko rating system, (which chess.com uses) assumes a rating is unreliable for new and inactive members. The more "unreliable" or inactive the rating, the larger the multiplier for points won and lost.
"Elo" (from Arpad Elo, the chess player and mathematician that invented the system) refers to the scale of ratings, ie arranging the numbers such that the difference of ratings between two players matches the winning expectation.
But it does not say anything about how to adjust the ratings (under the constraints that people die, other came in the system with incorrect ratings, etc.). The Glicko system is a real-life imlementation of the Elo (and IMO a very good one - the only problem is that ratings might inflate or deflate with time).
Elo rating system this isn't true.
Glicko rating system, (which chess.com uses) assumes a rating is unreliable for new and inactive members. The more "unreliable" or inactive the rating, the larger the multiplier for points won and lost.
"Elo" (from Arpad Elo, the chess player and mathematician that invented the system) refers to the scale of ratings, ie arranging the numbers such that the difference of ratings between two players matches the winning expectation.
But it does not say anything about how to adjust the ratings (under the constraints that people die, other came in the system with incorrect ratings, etc.). The Glicko system is a real-life imlementation of the Elo (and IMO a very good one - the only problem is that ratings might inflate or deflate with time).
Really? As I recall Elo made the rating system adpoted by both the USCF and FIDE (which includes updating ratings). I think there've been changes since (but not sure).
Elo rating system this isn't true.
Glicko rating system, (which chess.com uses) assumes a rating is unreliable for new and inactive members. The more "unreliable" or inactive the rating, the larger the multiplier for points won and lost.
"Elo" (from Arpad Elo, the chess player and mathematician that invented the system) refers to the scale of ratings, ie arranging the numbers such that the difference of ratings between two players matches the winning expectation.
But it does not say anything about how to adjust the ratings (under the constraints that people die, other came in the system with incorrect ratings, etc.). The Glicko system is a real-life imlementation of the Elo (and IMO a very good one - the only problem is that ratings might inflate or deflate with time).
Really? As I recall Elo made the rating system adpoted by both the USCF and FIDE (which includes updating ratings). I think there've been changes since (but not sure).
Not sure at all about that point. I'm pretty sure they do not use the same as this site, but I am not sure at all about how it is adjusted.
Elo proposed originally a way of adjusting ratings where the sum of a match in rating points was zero and there is no higher swings for new players (if I remember well), so that there is no problem of inflation of the ratings (the average rating will be the starting rating of all players). The swing in ratings is proportional to the "unexpectedness" of the result - ie if Carlsen beats me, our ratings won't change, but if he draws or loses, both will change dramatically. The Glicko remains a form of Elo rating.
its so people who are very good but are new to this site can reach their real rating much quicker
There is the same problem for FIDE... Example : in my club a few players are good but are not participating in tournaments and stuff like this so they do not have any FIDE rating. If they ever decide to get a license, it will be very soon obvious that a provisional rating of 1499 is not enough. Myself, I am a bit stronger than a beginner but I had no license for a couple of years, and I discovered chess.com since then so my old rating of 1500 or so is completely inaccurate.
Arguably, the Glicko works better on internet chess where more than 10% of the games you play are rated, but I'm pretty sure the explanation of why FIDE does so and chess.com so is more historical than mathematical.
If your rate realy is high (for example 2500) or low (for example 700), you must reach it immediately!
What?
Just wanna know why.