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Career ratings for: De Leon, Javier

  Date of rating  

World Rank Rating +/- Age
01/31/1993#2898212872
02/28/1993#2897212772
03/31/1993#2897212972
04/30/1993#2959212772
05/31/1993#2984212672
06/30/1993#2954212872
07/31/1993#2974213272
08/31/1993#3072212672
09/30/1993#3084213172
10/31/1993#3136213072
11/30/1993#3162213072
12/31/1993#3179213172
01/31/1994Inactive212082
02/28/1994Inactive212082
03/31/1994Inactive211982
04/30/1994Inactive211782
05/31/1994Inactive212282
06/30/1994Inactive212382
07/31/1994Inactive212782
08/31/1994Inactive212082
09/30/1994Inactive212182
10/31/1994Inactive212182
11/30/1994Inactive212482
12/31/1994Inactive212382
01/31/1995Inactive211685
02/28/1995Inactive211785
03/31/1995Inactive211785
04/30/1995Inactive211585
05/31/1995Inactive211785
06/30/1995Inactive211885
07/31/1995Inactive212385
08/31/1995Inactive211586
09/30/1995Inactive212086
10/31/1995Inactive211986
11/30/1995Inactive211986
12/31/1995Inactive211986

These ratings, calculated for De Leon, Javier, 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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