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Career ratings for: Richmond, Peter

  Date of rating  

World Rank Rating +/- Age
11/30/1992#2779209573
12/31/1992#2776209973
01/31/1993#2961209673
02/28/1993#2963209473
03/31/1993#2957209473
04/30/1993#3017209473
05/31/1993#3051209173
06/30/1993Inactive211377
07/31/1993Inactive211377
08/31/1993Inactive211677
09/30/1993Inactive211677
10/31/1993Inactive211677
11/30/1993Inactive209083
12/31/1993Inactive209283
01/31/1994Inactive209279
02/28/1994Inactive209279
03/31/1994Inactive209079
04/30/1994Inactive208979
05/31/1994Inactive209379
06/30/1994Inactive211182
07/31/1994Inactive211182
08/31/1994Inactive211282
09/30/1994Inactive210982
10/31/1994Inactive211082
11/30/1994Inactive209086
12/31/1994Inactive209186
01/31/1995Inactive210583
02/28/1995Inactive210583
03/31/1995Inactive210483
04/30/1995Inactive210383
05/31/1995Inactive210483
06/30/1995Inactive212285
07/31/1995Inactive212185
08/31/1995Inactive212385
09/30/1995Inactive212485
10/31/1995Inactive212585
11/30/1995Inactive210488
12/31/1995Inactive210588
12/31/1997Inactive210486
01/31/1998Inactive212387
02/28/1998Inactive212287
03/31/1998Inactive212287
04/30/1998Inactive212387
05/31/1998Inactive212387
06/30/1998Inactive214087
08/31/1998Inactive213787
09/30/1998Inactive213987
12/31/1998Inactive211987
01/11/1999Inactive211987
01/18/1999Inactive211987
01/25/1999Inactive211987

These ratings, calculated for Richmond, Peter, incorporate all games (against rated opponents) played in the year before the "Date of rating", along with the ratings that were already calculated one year previously. If a player has an insufficient number of games in recent years, there may be gaps in the list, even though you may see ratings listed on previous and/or subsequent dates. Whenever a player has played no rated games for three straight years, or dies, they are removed from the list.

Definition of columns in the above list:

Date of rating is the "effective date" of the rating. The rating calculation does not include any games occurring after the "Date of rating".

World Rank refers to the player's world rank on that date.

Rating is the calculated rating for the player, as of the "Date of Rating". This represents the player's estimated strength on the following day.

+/- is the standard deviation of the player's rating estimate. It is based on a geometric average of the number of rated games played in past years. Players who play very frequently will have a smaller +/- value, indicating a greater confidence in the accuracy of their rating. Players whose +/- value exceeds 76 are classified as "Inactive" due to their infrequent play against rated opponents. Mathematically, a player's rating is an estimate of their exact strength on the day after the "Date of Rating". The +/- value represents the standard deviation of that estimate; the player's true strength on that date should be within one standard deviation of their calculated rating approximately 68% of the time, and within two standard deviations of their calculated rating approximately 95% of the time.

Age is the player's exact age in years, on the "Date of Rating". If a player's age is displayed as a link, that means that this rating was active at the time of their next birthday. Click on the link to see the sorted list of all players' ratings on their birthdays when turning that same age.

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