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Career ratings for: Kchouk, Bechir

  Date of rating  

World Rank Rating +/- Age
12/31/1966Inactive225382
03/31/1967Inactive225182
06/30/1967Inactive225682
09/30/1967Inactive225583
06/30/1969Inactive228884
09/30/1969Inactive228784
10/31/1970#454226974
12/31/1970Inactive220977
02/28/1971Inactive220277
04/30/1971Inactive220877
06/30/1971Inactive225476
08/31/1971Inactive225576
10/31/1971Inactive226485
12/31/1971Inactive220288
02/29/1972Inactive220488
04/30/1972Inactive221088
06/30/1972Inactive225587
08/31/1972Inactive225787
10/31/1972Inactive225387
02/28/1973Inactive218182
04/30/1973Inactive217778
06/30/1973Inactive221878
08/31/1973Inactive222078
04/30/1974Inactive216989
06/30/1974Inactive220889
08/31/1974Inactive221089

These ratings, calculated for Kchouk, Bechir, 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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