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Career ratings for: Jerez Araoz, Gerardo

  Date of rating  

World Rank Rating +/- Age
03/31/1995#2620225875
04/30/1995#2778224675
05/31/1995#2823224275
06/30/1995#2805224475
07/31/1995#2848224375
08/31/1995#2871224575
09/30/1995#2886224775
10/31/1995#2845225275
11/30/1995#2849225075
12/31/1995#2911224975
01/31/1996Inactive227883
02/29/1996Inactive228183
03/31/1996Inactive229681
04/30/1996Inactive228581
05/31/1996Inactive228181
06/30/1996Inactive228181
07/31/1996Inactive227981
08/31/1996Inactive228181
09/30/1996Inactive228281
10/31/1996Inactive228481
11/30/1996Inactive228381
12/31/1996Inactive228281

These ratings, calculated for Jerez Araoz, Gerardo, 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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