Questions tagged [elo]

Use when the question is ABOUT the Elo rating system not when it mentions Elo

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1answer
72 views

Why Aimchess rapid 2021 match results do not contribute to rapid ratings?

I used to check player ratings updates on https://2700chess.com/rapid which is usually promptly updated, often within few minutes from the match end (at least during the last FIDE world cup this was ...
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0answers
32 views

What is the mean and standard deviation for men's and then women's standard FIDE ratings for those 2000 and above?

From this answer the unconditional means and standard deviations are Female Mean = 1505, standard deviation = 339 Male Mean = 1675, standard deviation = 346 What about the case for ratings of 2000+ ? (...
5
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1answer
561 views

At what age do master level players (2200+) reach their peak?

We are surprised that players like Boris Gelfand and Vishy Anand can/could still play with the best in the world in their 40's and 50's. Are we right to be surprised? On average at what age do strong ...
4
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1answer
333 views

FIDE database used for calculating current ELO

Is there somewhere the database FIDE use for calculating ELO rating of players? No need for PGN of games just game result, date, and players. Reason: recalculate players rating by using Gliko, with ...
2
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1answer
117 views

Is it possible to measure play strength by analysing games of a player?

I am thinking on a way, most ideally on a software tool, what could get one of more games of a player, analise them, and gives an estimate on his play strength (as Elo/Glicko rating). Is it possible? ...
7
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1answer
179 views

Why do you see peaks on the elo distribution?

I was observing the elo distribution in Lichess and noticed peaks around rounded numbers elos ratings for medium to high rated players. This is consistent in Bullet, Blitz, Rapid games and not so much ...
6
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1answer
562 views

Can a 2000 Elo rated player teach me middlegame play properly?

I have reached 2500 in the chess.com tactics trainer while I haven't study theory and my FIDE rating is 1637 (I reached 1930 in rapids a year in France). I want to study with a coach and there is one ...
3
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1answer
668 views

How many 2200+ FIDE rated players are there?

Are there any sources for the recent numbers of players rated over 2200 byFIDE?
7
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3answers
572 views

Why do women have a lower Elo requirement to obtaining (women) FIDE titles?

As well as FIDE norms, you need a certain Elo to obtain a certain title. Women need around 200 points lower Elo to obtain the analogous women's only title: Grandmaster (GM) 2500+ International master ...
6
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2answers
549 views

Why, in online chess, is it that the shorter the time control, the higher the world leading elo is?

I noticed on lichess.org that the shorter the time control, the higher the world-leading elo is. Is there a simple explanation for that? I also noticed that, in the meantime, the shorter the time ...
27
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5answers
7k views

Are chess players getting better, given the same rating?

Chess ratings are a relative thing at a particular time, just like boxing. It is not absolute, compared to weightlifting for example, in which the records keep getting broken. How would say a 1700 ...
4
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3answers
876 views

What's PlayMagnus age 10 Magnus' true elo?

I do realise that a similar question might have been asked before; however, all intel about the topic that I have managed to gather to date seems to be outdated: almost everywhere I search, it is said ...
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1answer
94 views

How relevant is historical performance for Elo rating?

How far back are results of matches relevant for Elo purposes? If a player wins a few early matches then they will earn less points for later wins that if they'd lost those early matches. In the end ...
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3answers
511 views

Historical motivation for the 1200-1800ish rating average

Although there is some variation in rating systems (in chess), most systems put the starting value and the mean of all users somewhere around 1500. Some pools are higher, some are lower, but most have ...
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2answers
2k views

Lichess vs Chess.com ELO system and player strength

So I usually play on Lichess now a days while my friend plays on Chess.com. He keeps telling me that Chess.com is harder and has more players and more serious players, therefore the games are harder ...
2
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1answer
157 views

limit stockfish 9 to a specific range of ELO rating

I am using stockfish 9 for our chess game project, and I want to limit the ELO rating of the engine to a range. I saw attributes like movetime and depth are used to limit the engine skill level, but I ...
6
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3answers
2k views

Elo distribution

In some online chess platforms you can see the Elo distribution of the players. It usually has Gaussian form. Is there somewhere where you can find the distribution of the classical Fide Elo?
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4answers
4k views

Are Elo Ratings Zero-Sum?

Are Elo ratings a zero-sum system in chess? In other words, if I gain +9 points from a game, does my opponent necessarily take a -9 point loss? If so, would it make sense to say that Elo points are a ...
5
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1answer
691 views

Initial FIDE rating below floor, what happens?

I'm curious to know what happens in the following scenario: I play a Swiss tournament and meet 3 rated players, I score at least half point but do badly overall. Then I play another Swiss tournament ...
27
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8answers
6k views

Would an ensemble of chess engines beat the best one?

In many areas such as prediction and classification, ensemble methods tend to outperform individual methods. This made me wonder if it would make sense to pick a few of the top chess engines and work ...
4
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4answers
214 views

Absolute strength and stability of Elo

Not sure how to phrase this... I am aware that Elo measures the relative strength of players. Let's assume for this question that there is such thing as an absolute strength in chess and that players ...
4
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1answer
729 views

By how much does being told what piece to move improve one's Elo?

Here is a (rather humorous) game in which a 900 player is told by a much higher rated player only which kind of piece to move (e.g. along the lines of "bishop", not "light square bishop"). Is it ...
6
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2answers
15k views

Is there a list of approximate ELO ratings for each Stockfish level?

I want to create something that will select an appropriate Stockfish difficulty setting automatically given the player's rating. The straight Stockfish v11 that I've downloaded has 20 difficulty ...
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2answers
2k views

Why does the FIDE rating table go beyond 400?

The FIDE rating regulations say: 8.5 Determining the rating change for a rated player 8.51 For each game played against a rated player, determine the difference in rating between the player and his ...
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3answers
1k views

How does Elo rating gain scale with games played?

I only take two players starting out at 1500 Elo and have them play against each other with one player winning all games. Also I leave out any artificially introduced cut-offs. So the winner is ...
3
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1answer
196 views

Online resource for estimating my elo rating using my games?

There are resourses that can estimate your elo rating such as this one. Usually I need to solve some puzzles and the system will give me an estimation of my elo rating. Here I have a different thought:...
5
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1answer
333 views

The Evolution of the K-Factor

The change in Elo ratings depends, among other things, on the K-factor (or development coefficient). Current rules FIDE Rating Regulations effective from 1 July 2017 give the following values: K = ...
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1answer
195 views

Equation for Handicap

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? There might be a time equation to ...
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5answers
6k views

Why have engines not increased top rated chess players' Elo?

The arrival of strong chess engines as Stockfish, Houdini or Rybka allow top players to deeply prepare lines in openings or to study better endgames. I would expect a rating increase of top players. ...
4
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2answers
93 views

Creating program for finding top players with respect to elo and age

I want to create a program for personal use but also maybe for publishing it on the web, in order to detect the top players with respect to elo and age. There will be two cases: A) In this case, ...
5
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2answers
1k views

I played my first (rapid) tournament recently and I wanted to calculate my ELO

According to FIDE regulations I should calculate the average of my opponents and just plug it here: https://ratings.fide.com/calculator_rp.phtml. I scored 5/9 but a couple of players didn't have ...
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0answers
75 views

Probability of winning based on Elo rating [duplicate]

I already looked on several websites but I have not been able to get a clear and thorough answer to this question: If player A has FIDE rating x and player B has FIDE rating y, how many times, on ...
7
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4answers
722 views

Is there a low-end ELO Deflation?

I've heard often about Elo Inflation among the top chess players, meaning that a player rated 2650 Elo nowadays is weaker compared to a player rated 2650 Elo player 10 years ago. I'm curious if there'...
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3answers
160 views

Establish Rating System for My Community

I want to establish a rating system for my community. I've decided to publish the rating every 1st January, April, July and October. Every new player will be given a rating of 1200. Using result ...
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0answers
112 views

How much does time control affect ELO strength? [closed]

Suppose we cloned Magnus Carlsen and arranged a match between the clone and the real Magnus. I will give the real Magnus x minutes on his clock, and the clone will have y minutes. Is there any ...
5
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1answer
441 views

Story of unexpectedly high (400+) Elo rising in few months (reaching 2500 Elo mark)

I'm sorry for being vague, but that's exactly my problem: I can't find an online blog post of a German/Scandinavian master anymore which illustrated a case of a young boy from Eastern Europe who ...
2
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2answers
335 views

Calculation of national rating

In order to calculate effect on national rating, should it be enough to choose the relevant k coefficient (assuming this is what makes for the discrepancy between national rating and FIDE rating) and ...
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2answers
298 views

Experience of big difference between Elo and national rating?

I was just wondering if others have experienced big differences between players Elo and their national rating? Currently I am playing a tournament outside of my own country. The tournament is Elo ...
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4answers
836 views

Is a team of GMs stronger than a single super-GM?

For example Magnus Carlsen is currently the world number 1 and favourite to win a match against any other player in the world. (Similarly for Wesley So in chess960.) Is he also favoured to win a match ...
3
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1answer
294 views

Elo rating software with automatic random matchups

This question is not about chess per se, but I am looking for a software that could generate random matchups through a list of 200ish options/people, then I could choose the winner and it would rank ...
2
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1answer
84 views

Preparations for chess tournaments [duplicate]

So I'm participating in a chess tournament in a few days (FIDE rating) and I'm in a fix as to preparation methods. I'm doing as many puzzles as I can and preparing many openings. I'm also playing few ...
0
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1answer
571 views

What would be the ELO of modern-day centaurs?

The last public ranking of chess centaurs was in 2014, and only compares centaurs to each other. As of 2018, what would be the ELO rating of the best centaurs compared to the best humans and chess ...
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2answers
1k views

How to calculate the FIDE Percentage Expectancy Table

Section 8 of the FIDE Rating Regulations provides the following table I understand that dp=800 and dp=-800 are arbitary caps at the top and bottom of the table. However, in relation to the other ...
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4answers
457 views

ELO rating and experience

I was looking at many players' ELO over time graphs and noticed something interesting. Usually players stay in the same 200-300 bracket through very long periods of time (I'm talking decades here) ...
4
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2answers
375 views

Why doesn't FIDE recalculate ratings match after match?

In this question I brought up two rating systems and wondered which is used by FIDE. Briefly, they are: Method 1 Ratings are updated (recalculated in other words) after every match. Method 2 Ratings ...
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11answers
22k views

How is Alpha Zero "more human"?

I have a possibly naive question about AlphaZero. I have seen it described as playing in a "more human" style than other computers, but whatever it does, it gains about 100 ELO points by doing it. ...
14
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1answer
3k views

Are Elo ratings adjusted after each match, or after each tournament?

I'm aware that the FIDE ratings list is only published once per month. I'm interested in how often the ratings are recalculated internally to FIDE without being published. Are ratings adjusted match ...
4
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2answers
994 views

Mistake in FIDE elo calculation?

One of the properties of an elo rating system is that the sum of all elo changes is zero. When calculating the new FIDE elo ratings, the elo changes are added to the old ratings and the new ratings ...
3
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1answer
3k views

How to earn IM/GM titles

Can someone please provide detail on how IM (International master) and GM (Grand master) norms are attained? Thanks!
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4answers
2k views

Should I join a chess club?

I started playing chess around 1 year ago, all I have done is watch some videos and play online, so my knowledge is pretty poor. I am coming to a new city and I was thinking about joining a chess club,...