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Career ratings for: Rocabert Andreu, Guillem A

  Date of rating  

World Rank Rating +/- Age
01/31/1996#2825226269
02/29/1996#2836226269
03/31/1996#2883225969
04/30/1996#2887225769
05/31/1996#2929225569
06/30/1996#2944225269
07/31/1996#2819226071
08/31/1996#2855226171
09/30/1996#2886226071
10/31/1996#2918225971
11/30/1996#2945225771
12/31/1996#3005225571
01/31/1997#3109224369
02/28/1997#3107224569
03/31/1997#3178224269
04/30/1997#3223224069
05/31/1997#3256223769
06/30/1997#3295223669
07/31/1997#3179224370
08/31/1997#3191224370
09/30/1997#3217224170
10/31/1997#3257224170
11/30/1997#3268223870
12/31/1997#3330223570
01/31/1998Inactive223379
02/28/1998Inactive223579
03/31/1998Inactive223479
04/30/1998Inactive223479
05/31/1998Inactive223279
06/30/1998Inactive222979
07/31/1998Inactive223780
08/31/1998Inactive223580
09/30/1998Inactive223480
10/31/1998Inactive223280
11/30/1998Inactive222980
12/31/1998Inactive222580
01/11/1999Inactive222680
01/18/1999Inactive222680
01/25/1999Inactive222680

These ratings, calculated for Rocabert Andreu, Guillem A, 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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