Skip to main content

Questions tagged [rating]

A number that approximates a player's skill. The actual meaning of the number depends upon the issuing organization. FIDE ratings are used as the international standard for over-the-board chess.

Filter by
Sorted by
Tagged with
0 votes
2 answers
82 views

How does the Glicko rating system correlate to Elo?

I was wondering what the "rating" difference was in the Glicko, and Elo rating systems. Are they close to the same amount/number, or do they heavily differ?
Jonah Hodge's user avatar
0 votes
1 answer
85 views

Why does the Elo I gain from games fluctuate so heavily?

When I am playing on Chess.com, the amount of elo I gain or lose from each game seems to be randomized, due to the fact that I gain less and lose more elo, when playing against players with a higher ...
Jonah Hodge's user avatar
1 vote
1 answer
86 views

Process of reconnecting rating for a large country that been excluded from FIDE for a many years

If a large country with a population with many active chess players was expelled from FIDE for many years how would the rating system be reconnected? They would have hundreds of thousands of players ...
Ian Ringrose's user avatar
  • 1,143
9 votes
3 answers
1k views

How to pull ratings from Chess.com and Lichess automatically?

We use a chess club and class management system that gets up to date ratings from ECF (English Chess Federation). Is it possible to do the same for Chess.com and Lichess and how?
Al Martins's user avatar
3 votes
2 answers
721 views

What is the typical rating difference between players in rated games?

As people tend to like playing games when the outcome is not known before they start I would expect most games to be between players when the rating difference is not much more than 200. Is this the ...
Ian Ringrose's user avatar
  • 1,143
0 votes
0 answers
16 views

What proportion of FIDE rated games are from swiss tournaments?

I assume most rated games are played in swiss tournaments, but have anyone looked at the data to see if this is case?
Ian Ringrose's user avatar
  • 1,143
1 vote
1 answer
37 views

What value of K is used when when a player is removed from FIDE rating list due to dropping below 1400?

My FIDE rating recently went under 1400, hence I lost my rating. I have K=20 at the moment. So my question is what will be the K from now on? 20 or 40?
mic sc's user avatar
  • 11
0 votes
0 answers
29 views

Largest Elo variance for a GM

Too theoretical If you care to look at my national rating over time (available at the German federation), you might think I bag sand. Nope, that's normal for me. Extreme, but not unique, I guess. Let'...
Hauke Reddmann's user avatar
1 vote
0 answers
32 views

What the max possible USCF rating of a player after playing in an under 1400 tournament?

Assume a player is over 18, and has played 40 UCSF rated games. Then the player wins 5 games in a 5 round under 1400 swiss, what is the max possible rating of the player after the tournament? (Assume ...
Ian Ringrose's user avatar
  • 1,143
1 vote
0 answers
46 views

Are there any large swiss with good playing standard that are not rated?

Chess players who are improving in the USA have good reasons to avoid increasing their ratings as prize money is often high in tournaments with a rating ceiling. The rules for such tournaments ...
Ian Ringrose's user avatar
  • 1,143
1 vote
1 answer
48 views

How does the Australian rating system (ACF) make use of information from games played outside of Australian?

I have yet to find any details of how the Australian rating system is implemented other then it being based on Glicko2. It must clearly do more then the Glicko research papers says.
Ian Ringrose's user avatar
  • 1,143
1 vote
0 answers
52 views

What "hacks" does the Australian rating system (ACF) have to cope with fast improving children?

It seems practically all national rating systems have special rules to advoid issues with deflation due to fast improving children as well as special rules to help these children recorded ratings keep ...
Ian Ringrose's user avatar
  • 1,143
4 votes
1 answer
137 views

How many weaker players as a team can rival a much stronger player?

I wonder if anyone has tried to organize a large number of much weaker players to cooperatively beat a top player. Of course weaker players may not even see let alone agree on best moves if they use ...
alices_and_bobs's user avatar
1 vote
1 answer
86 views

How long do US chess ratings remain valid for?

In many countries it seems local chess ratings are only kept for players who continue to play rated games. Does the USCF have such a system?
Ian Ringrose's user avatar
  • 1,143
0 votes
1 answer
96 views

Should K be reduced when playing the same person often?

(Lets assume all these players are in their 30s and have been playing chess for many years, with no recent changes in how they train.) Say we have 7 players who play each other in an isolated club ...
Ian Ringrose's user avatar
  • 1,143
1 vote
0 answers
31 views

How well does the English chess rating system predict results of games between under 18s and established adult players?

The English rating system makes it possible for someone to get a full rating without every playing a person with a full rating or playing anyone who have played someone with a full rating. Hence a ...
Ian Ringrose's user avatar
  • 1,143
0 votes
0 answers
39 views

What mathematical modelling was done to justified the asymmetric "k" for under 18s in the rating system used by the English Chess Federation?

In the English Chess Federation (ECF) implementation of Elo, an under 18 player gets a K of 40 when improving but a K of 20 when not. This is a nice simple solution to young players improving faster ...
Ian Ringrose's user avatar
  • 1,143
0 votes
1 answer
107 views

Why do FIDE initial ratings include "two hypothetical opponents rated 1800"?

The FIDE regulations state: Ra is the average rating of the player's rated opponents plus two hypothetical opponents rated 1800. The result against these two hypothetical opponents is considered as a ...
Ian Ringrose's user avatar
  • 1,143
5 votes
1 answer
2k views

How is rating calculated for players who haven't played for long time (e.g. decades)?

Once in my life, I participated in a Canada Chess Federation (CFC) rated tournament, and that's how I obtained my initial (and the one and only) rating. That was more than 20 years ago though, and I ...
tim bits's user avatar
  • 139
1 vote
1 answer
60 views

In 4NCL are practically all players good enough to have FIDE rating?

In 4NCL (Four Nations Chess League) are practically all players good enough to have FIDE rating? How quickly after starting to play in the lower league will a player have played 5 FIDE rated players? (...
Ian Ringrose's user avatar
  • 1,143
1 vote
1 answer
143 views

Queen's Pawn Game: Accelerated London System

I played the following game of chess with the black pieces with a friend of mine (we didn't use any clocks, but it lasted about twenty minutes.). As far as I know, the opening is known as "Queen'...
richardIII's user avatar
4 votes
2 answers
1k views

How do I know what the rating of a game is?

I found this game on a random scrap of paper lying on the ground. I'm not sure how strong the players are. How should I go about determining that by using a chess engine (say, the ones hosted by ...
Taw's user avatar
  • 293
3 votes
0 answers
56 views

Do FIDE or any of the federations rate Lightning chess?

Lightning chess predates digital clocks by many decades. It is basically 0+10s delay chess. A buzzer goes off every 10 seconds and the player on move has to move on the buzzer. The Scottish chess ...
Brian Towers's user avatar
  • 99.2k
1 vote
1 answer
2k views

Why did I lose a point of rating in stalemate?

Recently played this game on chess.com and it ended up in a stalemate then also I lost one rating and the opponent gained one rating. How is this possible as I have more points in the end? Edit: For ...
InfinityLies's user avatar
3 votes
1 answer
1k views

Now that FIDE's anti-deflation rating adjustments have been done, what do they look like?

The background is covered in this question and the accepted answer. The changes were delayed until the March list. Comparing charts for the number of different players at each rating level before and ...
Brian Towers's user avatar
  • 99.2k
3 votes
3 answers
156 views

Estimating the "final" strength of a kid

The short answer is of course "You can't". There are too many variables (e.g. the amount of special training). Also, ratings are not reliable, if even existent (looking at the current kid ...
Hauke Reddmann's user avatar
4 votes
1 answer
2k views

I did not get Fide rating although I met all the requirements why?

I scored 0.5 in a FIDE tournament against 5 rated players and my performance rating was 1284. Why did I not get FIDE rating? Do I need to play another tournament in order to get a rating?
Apaar Khanna's user avatar
9 votes
2 answers
2k views

How did you get over 2000 FIDE?

A little bit of background: I started playing chess when I was almost 20 years of age, my first FIDE tournament was when I was 25 and my first FIDE rating was in the low 1900's. At first, I thought, I ...
sfsm's user avatar
  • 93
2 votes
0 answers
75 views

What do the flags 'i', 'ie', 'in', 'n', 'w', 'wi', 'win', 'wn' mean in old FIDE rating lists?

I'm going through some old rating lists https://ratings.fide.com/download.phtml?period=2001-01-01 to be precise and came across these flags 'i', 'ie', 'in', 'n', 'w', 'wi', 'win', 'wn' I know that i = ...
cmgchess's user avatar
  • 2,770
6 votes
2 answers
2k views

Skill degradation

I am 27 years old and have been playing chess since December 2020. I won a semi-rapid (25+5) tournament under 1500 FQE (chess federation in Quebec) 6 months ago. I took a break from November 2023 to ...
Dimitar Zhekov's user avatar
1 vote
1 answer
87 views

Has anyone looked at the percent of brilliant, best, book, etc moves in chess.com by rating?

After a game, chess.com lists moves as "brilliant", "best" etc down to "blunder". I'm wondering about the % of each for random selections of players at different levels ...
Peter Flom's user avatar
0 votes
3 answers
117 views

Describing skill level

I have a USCF rating of just over 1600 and in any given tournament that rating is usually just a bit short of the median rating of all players in the tournament. However, the USCF website shows me as ...
Wally's user avatar
  • 11
1 vote
1 answer
94 views

How to calculate FIDE's Perfect Tournament Performance (PTP)?

How to calculate FIDE's PTP? The PTP is defined in https://handbook.fide.com/chapter/TieBreakRegulations042024 as: This is a whole number corresponding to the lowest rating that a participant should ...
clp's user avatar
  • 265
0 votes
1 answer
68 views

Difficulty of problems for different rating levels

For club players, it is pretty well-known that certain types of problems are harder than others. Of course, mate in 4 is usually harder than mate in 1, but I am talking more about things like the ...
Peter Flom's user avatar
1 vote
1 answer
187 views

Which FIDE ratings correspond to the different Stockfish levels at 5+3?

Lichess has a Play With The Computer option on its main site, which offers Stockfish levels 1 through 8. What would their FIDE ELOs be with time control set to 5+3? (Some people on Lichess have FIDE ...
MWB's user avatar
  • 485
2 votes
1 answer
158 views

USCF rating floor exploitation

If I understand the Elo system correctly, the outcome of a game produces a zero-sum change in ratings between the two players. But in the case of when the losing player is at his floor, new rating ...
Duke Leto's user avatar
  • 543
5 votes
1 answer
2k views

What Distinguishes Supergrandmasters from Grandmasters in Chess?

I have been following professional chess for a while and often come across terms like "grandmaster" and "super grandmaster." While I understand that both are titles indicating a ...
Iman Mohammadi's user avatar
1 vote
2 answers
308 views

Consequences of Missing a Single Game in a Rated Chess Tournament

I am participating in a rated chess tournament that spans multiple rounds, and I have a specific query regarding attendance. Suppose I have played the first 9 rounds of the tournament, but due to ...
Iman Mohammadi's user avatar
2 votes
2 answers
124 views

Can Winning a Game in a First Rated Tournament Result in a Lower Rating than Not Playing?

I'm curious about a specific scenario in chess rating systems, particularly for a player attending their first rated tournament. Is it possible that for an unrated player, winning a game in their ...
Iman Mohammadi's user avatar
0 votes
2 answers
197 views

Is There a Limit on the Number of Rated Tournaments a Chess Player Can Attend in a Month?

I'm an enthusiastic chess player looking to participate in more rated tournaments to improve my ranking and gain experience. However, I'm curious if there's any sort of limitation on the number of ...
Iman Mohammadi's user avatar
0 votes
1 answer
99 views

How to Correct Incorrect Birth Year in My FIDE Profile?

I recently discovered that my FIDE (International Chess Federation) profile lists an incorrect birth year. My actual rating from years ago was 1450, but the birth year on the site is wrong. Here's my ...
Iman Mohammadi's user avatar
9 votes
2 answers
3k views

Returning to Chess Tournaments: Does My Old FIDE Rating Still Apply?

Years ago, I was an active chess player with a rating of 1450. I plan to return to the scene by participating in an official tournament. My question is, will my previous rating be retained or reset ...
Iman Mohammadi's user avatar
7 votes
1 answer
234 views

Which federation would a cruise ship FIDE rated tournament be rated under?

I know bridge tournaments are a big thing on cruise ships. I think I've seen adverts for a chess tournament on a cruise ship several years ago but can't remember the details or find anything online. ...
Brian Towers's user avatar
  • 99.2k
6 votes
4 answers
356 views

What would cause FIDE to refuse to rate a tournament which had been correctly registered for rating?

According to this statement from FIDE today: Today, on December 18, the mini-matches featuring GM Alireza Firouzja (Elo 2750) began in Chartres, France - his hometown. This seven-game tournament pits ...
Brian Towers's user avatar
  • 99.2k
1 vote
1 answer
262 views

How does Chess.com calculate puzzle rating?

How does chess.com calculate puzzle rating? I am curious because today, I managed to gain rating while incorrectly solving a puzzle. Could someone help me out? (Also on puzzles that are already rated, ...
MrChessR's user avatar
  • 252
7 votes
2 answers
2k views

Does Fide/Elo rating fade over time?

Let's imagine I am a super genius, and I get a ELO ranking of 3000. And then suddenly I stop playing chess, what happens to my rating then over time? Does it slowly decrease by NOT playing? This is ...
user36003's user avatar
4 votes
2 answers
186 views

For daily games, will the order of resignation affect the rating?

Say a player with a daily rating of 1500 is playing three daily games at chess.com. His opponents' ratings are 1300, 1500 and 1700 respectively. This player has losing positions in all three games but ...
Zuriel's user avatar
  • 9,101
1 vote
0 answers
105 views

Rating decreased suddenly without reason, FIDE rating displayed wrongly in the website can anyone have such Problems

My son's rating opened when he played international match during August 2023. The rating was displayed in FIDE website on the last date of August, and it was 1156. Later on September he played another ...
Bio's user avatar
  • 11
2 votes
0 answers
140 views

My FIDE Initial Rating Calculation Problem

I’m working on path to get my initial FIDE rating. I joined 8 local FIDE rated tournaments with result as follow. Rating = Result Rapid Ratings November 2022 1083 = 0 Rapid Ratings March 2023 1142 =...
Mr_Sha's user avatar
  • 21
2 votes
1 answer
191 views

Question on FIDE Rating List Submission

I am playing in a tournament on the 19th-20th of this month and I have a question regarding FIDE rating change for the end of the month when the new list is published. I have done very well in some ...
Alex R's user avatar
  • 21

1
2 3 4 5
8