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25

I think they certainly have increased their ELO, but more importantly, their overall chess strength. ELO is only a rating relative to others in the pool so it may tend to go up more slowly if everyone in the pool gets better, which they have collectively. First, you need to take an average of the top players, rather than look at just two incredibly special ...


23

"PhishMaster's Complete Guide To Improvement": What to study, and how. Every player has times where they "plateau", and have trouble moving on, but they usually get past it eventually if they are continuing to study. Sometimes, it is a matter of patience. Here is a set of comprehensive answers to questions I previously gave in various chunks, that are now ...


15

The question is apparently based on a misunderstanding of how ELO ratings work. There is absolutely no mechanism by which the overall increase in players' strength would lead to increase in their ELO. The actual value of the ELO rating bears no meaning; nor does the comparison of ELO at distant times. The only thing that has direct relevance is the ...


15

The Elo rating system is a rating system for two-person, zero-sum games based on the assumption that performance is normally distributed. That is, a player's performance is expected to follow a normal distribution. For FIDE the mean = the player's rating and standard deviation = 2000/7 = 285.7. It was developed by Arpad Elo and first implemented by the ...


14

A typical way to do it is to treat puzzles the same as players and rate them based on whether they "win/lose" and the rating of the "opponent" ChessTempo has a nice explanation here copied below: The rating system is inspired by an idea implemented at the Chess Tactics Server. CTS treats both problem solvers and the problems as opponents with their ...


14

The WCC was the "World Chess Council". It was formed in 1998 by Kasparov after the collapse of the PCA (Professional Chess Association) in 1995. It was Kasparov's fourth attempt at an organization separate from FIDE. It organized the candidates match between Kramnik and Shirov in 1998, which Shirov surprisingly won (5.5-3.5), and he was slated to play ...


11

To make GM, a 2500 FIDE rating is needed, among other thing. But there is not a separate "Elo rating" which is also needed. Elo rating is a generic term for any rating system based on the work of Arpad Elo. It's also often used as shorthand for FIDE rating. If someone says their rating is 2500 Elo, that normally means 2500 FIDE.


11

The way ratings are mathematically defined, they don't express the absolute strength of players, but only the strength of players in a pool relative to each other. So there is no meaning in trying to compare blitz rating and standard rating, the way you are trying to suggest. For the same reason you cannot compare computer ratings with human ratings, ...


10

The new, munged* FIDE rating website still has the old "Advanced Search" option, but the page doesn't have its own URL. There you can search for GMs from all countries sorted by rating ascending and then you get that the Russian GM, Vasily B Malinin, born in 1956 is the lowest rated GM with a standard rating of 2100. Looking at his individual ...


9

If those engines have a 3600 Elo, shouldn't top players have profited from it to leave Kasparov's 2851 score in 1999 far away? No. The main effect of engines and also the internet has been to democratise chess. The top players have always had access to top level evaluation and knowledge. For lower level players that kind of knowledge, analysis, position ...


9

Why are they there in the first place if they cannot be used? They were there in the first place because they were used. The 400 point rule came later. What use are those entries? They provide interesting historical context which makes it easier to answer questions like this. Perhaps a better question would be, why are they still there, or why weren't ...


8

Here's an online calculator for this. 28 wins, 0 losses, and 72 draws is an elo difference of exactly 100. Do remember that this score +28 =72 -0 score was against a handicapped version of Stockfish. In the full paper, AlphaZero scored +155 =839 -6, which is an elo difference of 52.


8

Table 8.1(a) is also used by reference in the title regulations. To achieve a GM, IM, WGM, or WIM norm, a player must have a performance rating over a certain amount, and the performance rating is calculated using this table. Unlike the rating regulations, the title regulations do not limit the ratings difference to 400 points, so the entire table is used. ...


7

+28, =72, -0 corresponds to a score of 64%. The FIDE Rating Regulations effective from 1 July 2017 give details for calculating rating differences in table 8.1a. According to that table a fractional score of 0.64 corresponds to a rating difference of 102. Hence if Stockfishes rating is 3378 then AlphaZero's is 3378+102 = 3480


6

Why didn't I get a FIDE rating? Probably because you didn't meet the requirements to get a rating. According to FIDE Rating Regulations effective from 1 July 2017 (sorry no link currently because FIDE have munged their site and you have to search withing the site): Official FIDE Rating List 7.1 On the first day of each month, the QC shall ...


6

It's a bit old, but this paper from 1995 by Mark Glickman (creator of the Glicko rating system) discusses some of the rating systems in use at the time, including the ones used by the USCF, FIDE, and the PCA. In it, several issues are mentioned, such as rating inflation/deflation, regional variations in ratings, variations in time controls, and the advantage ...


6

It kind of depends exactly what you mean by artificial cutoffs. There is one explicitly stated artificial cutoff in the FIDE rating regulations. That says that if the rating difference is greater than 400 it will be treated as 400. But there is another hidden cutoff. The actual elo algorithm for calculating expected score or scoring probability involves ...


5

Based on a similar list found on anusha.com, which is titled Combined July 1998 FIDE and WCC (PCA) World Chess Rating Lists This table enables comparison between the official FIDE Rating list and the WCC list (formerly known as the PCA list) developed by Ken Thompson. For example, Anatoly Karpov is ranked number 5 and is rated 2725 on the FIDE list but is ...


5

Has chess improved that much since Morphy that the odds would not be feasible to give to anyone other than absolute beginners? This is certainly not the case. Kasparov played a master-level player in 2001 giving move and two pawn odds, and won 2.5-1.5. In 2008, Larry Kaufman wrote: ...the Elo equivalent of a given handicap degrades as you go down the ...


5

There is a game theory of why 1st round NFL drafts don't perform as well as expected. The reasoning is that the player had an above average couple of games and returned to his average performance. By the same logic, there are later round drafts who have stellar careers. I'm not going to make a judgement based on three games, or even your archive on ...


5

if a tournament has 10 rounds, and I can only play the first 3 (and in this example let’s say I win 1.5 points), will my initial rating become the average of these 3 opponents or will this not count as a part of my full initial rating? No and no. The FIDE rating regulations say 7.14 A rating for a player new to the list shall be published only if it meets ...


4

I noticed the Fide rating list is always published with the date of birth of the player That is not true. The full date of birth is now never published, although in the early noughties it was. Now just the year of birth is published. Furthermore that is often also not published. When you register you can request that your year of birth is also not ...


4

The way FIDE rating (and rating change) is calculated is described in FIDE Rating Regulations effective from 1 July 2017. For an already rated player the calculations for working out the rating change are given in section 8.5. From here it can be seen that how fast a rating changes for a given performance depende on the "k factor". This is defined in 8.56: ...


4

A few things: 1) Ratings overall tend to rise due to inflation of more players entering the pool, rather than the average playing strength of players increasing. If everyone becomes better by some factor due to engines, why would top players' ratings increase? They're now playing opponents who have also gotten stronger by roughly the same amount. 2) ...


4

From your context, there is no difference between the two. "Elo" (From Arpad Elo, a professor at Marquette University and president of one of the two organizations that merged to form the US Chess Federation back in 1939 -- IIRC he chaired the meeting that resulted in the merger) when used by in the context of FIDE titles typically refers to the FIDE rating ...


4

Are there any sort of equations for how much of a handicap one should receive to make a game between two players with differing Elo ratings as balanced as possible? The short answer is "No", there is no scientific equation, but it doesn't stop people from trying. For instance, our club runs an annual handicap tournament in which it tries to produce a ...


4

Yes, it was luck or you are stronger in longer time controls. No one can really say which is the case for you personally, considering you only played a few longer games. To find out you just have to play more and see.


4

Fascinating question. I computed the stats for each individual file (Standard, Rapid and Blitz) downloaded from the FIDE download page. I added up the number of games reported for each FIDE player for each control time and list. Standard Time Control 145,618 games played in and reported in the April list. Only 9,946 games played in standard time control ...


3

The free Excel add-in Chess Ranking Assistant found at https://www.add-ins.com/free-products/chess-ranking-assistant.htm uses the glicko system and is menu driven for easy of use. It is designed for chess clubs


3

USCF had a similar rating system in the 1950s. But it was all manual and rating lists came out infrequently. After that a number of people have tried to improve on it. USCF has even changed their version a couple of times. Arpad Elo was a big factor in improving all the systems and I supect that the FIDE version now is closer to his than USCF as USCF ...


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