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Career ratings for: Cast, Abigail

  Date of rating  

World Rank Rating +/- Age
11/20/2000Inactive209384
11/27/2000Inactive209484
12/04/2000Inactive209684
12/11/2000Inactive209684
12/18/2000Inactive209479
12/25/2000Inactive209479
01/01/2001Inactive209579
01/08/2001Inactive209479
01/15/2001Inactive209479
01/22/2001Inactive209579
01/29/2001Inactive209579
02/05/2001Inactive209479
02/12/2001Inactive209576
02/19/2001Inactive209576
02/26/2001Inactive209576
03/05/2001Inactive209576
03/12/2001Inactive209476
03/19/2001Inactive209476
03/26/2001Inactive209476
04/02/2001Inactive209576
04/09/2001Inactive209476
04/16/2001Inactive209476
04/23/2001Inactive209476
04/30/2001Inactive209376
05/07/2001Inactive209576
05/14/2001Inactive209676
05/21/2001#3902211971
05/28/2001#3901211971
06/04/2001#3907211971
06/11/2001#3896211771
06/18/2001#3819213471
06/25/2001#3797213671
07/02/2001#3793213671
07/09/2001#3797213571
07/16/2001#3794213571
07/23/2001#3805213571
07/30/2001#3832213671
08/06/2001#3876213671
08/13/2001#3874213571
08/20/2001#3894213471
08/27/2001#3968213471
09/03/2001#3990213571
09/10/2001#4002213571

These ratings, calculated for Cast, Abigail, 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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