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Career ratings for: Khait, A.

  Date of rating  

World Rank Rating +/- Age
05/31/1992#1453232675
06/30/1992#1488232475
07/31/1992#1539232175
08/31/1992#1566232175
09/30/1992#1569232275
10/31/1992#1550232475
11/30/1992#1563232175
12/31/1992#1465233475
01/31/1993Inactive226279
02/28/1993Inactive226479
03/31/1993Inactive226279
04/30/1993Inactive226479
05/31/1993Inactive228977
06/30/1993Inactive228977
07/31/1993Inactive228477
08/31/1993Inactive228577
09/30/1993Inactive228577
10/31/1993Inactive228677
11/30/1993Inactive228477
12/31/1993Inactive228876
05/31/1994Inactive228588
06/30/1994Inactive228388
07/31/1994Inactive227988
08/31/1994Inactive227988
09/30/1994Inactive227988
10/31/1994Inactive227888
11/30/1994Inactive227788
12/31/1994Inactive228187

These ratings, calculated for Khait, 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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