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Career ratings for: Chashchev, Sergey

  Date of rating  

World Rank Rating +/- Age
01/31/1997#4528211567
02/28/1997#4540211767
03/31/1997#4586211667
04/30/1997#4620211567
05/31/1997#4655211567
06/30/1997#4645211667
07/31/1997#4662211667
08/31/1997#4684211767
09/30/1997#4714211567
10/31/1997#4807211467
11/30/1997#4811211467
12/31/1997#4852211467
01/31/1998Inactive210677
02/28/1998Inactive210777
03/31/1998Inactive210977
04/30/1998Inactive210977
05/31/1998Inactive210877
06/30/1998Inactive210877
07/31/1998Inactive210877
08/31/1998Inactive210777
09/30/1998Inactive210877
10/31/1998Inactive210877
11/30/1998Inactive210777
12/31/1998Inactive210677
01/11/1999Inactive210677
01/18/1999Inactive210677
01/25/1999Inactive210677
02/01/1999Inactive209988
02/08/1999Inactive210088
02/15/1999Inactive209988
02/22/1999Inactive209988
03/01/1999Inactive210088
03/08/1999Inactive210288
03/15/1999Inactive210188
03/22/1999Inactive210188
03/29/1999Inactive210188
04/05/1999Inactive210288
04/12/1999Inactive210288
04/19/1999Inactive210388
04/26/1999Inactive210388
05/03/1999Inactive210288
05/10/1999Inactive210288
05/17/1999Inactive210288
05/24/1999Inactive210288
05/31/1999Inactive210288
06/07/1999Inactive210288
06/14/1999Inactive210288
06/21/1999Inactive210288
06/28/1999Inactive210288
07/05/1999Inactive210288
07/12/1999Inactive210188
07/19/1999Inactive210188
07/26/1999Inactive210288
08/02/1999Inactive210188
08/09/1999Inactive210288
08/16/1999Inactive210288
08/23/1999Inactive210188
08/30/1999Inactive210188
09/06/1999Inactive210388
09/13/1999Inactive210288
09/20/1999Inactive210388
09/27/1999Inactive210388
10/04/1999Inactive210188
10/11/1999Inactive210188
10/18/1999Inactive210188
10/25/1999Inactive210188
11/01/1999Inactive210188
11/08/1999Inactive210088
11/15/1999Inactive210188
11/22/1999Inactive210088
11/29/1999Inactive210188
12/06/1999Inactive210288
12/13/1999Inactive210288
12/20/1999Inactive210188
12/27/1999Inactive210188
01/03/2000Inactive210288
01/10/2000Inactive210288
01/17/2000Inactive210288
01/24/2000Inactive210288
01/31/2000Inactive210288

These ratings, calculated for Chashchev, Sergey, 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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