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Career ratings for: Sattar, R.

  Date of rating  

World Rank Rating +/- Age
01/31/1993#2037227675
02/28/1993#1976228275
03/31/1993#1985228275
04/30/1993#2028228075
05/31/1993#2037227975
06/30/1993#2027227875
07/31/1993#2057227575
08/31/1993#2038228075
09/30/1993#2030228275
10/31/1993#2056228275
11/30/1993#2061228275
12/31/1993#2062228575
01/31/1994Inactive226986
02/28/1994Inactive227586
03/31/1994Inactive227486
04/30/1994Inactive227186
05/31/1994Inactive227486
06/30/1994Inactive227286
07/31/1994Inactive227086
08/31/1994Inactive227586
09/30/1994Inactive227586
10/31/1994Inactive227386
11/30/1994Inactive227686
12/31/1994Inactive227786

These ratings, calculated for Sattar, R., 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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