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Career ratings for: Pankratov, A.

  Date of rating  

World Rank Rating +/- Age
11/30/1995#2903224675
12/31/1995#3006224175
09/30/1996Inactive226879
10/31/1996Inactive226279
11/30/1996#3751219574
12/31/1996#3803219474
01/31/1997Inactive221976
02/28/1997Inactive222676
03/31/1997Inactive222376
04/30/1997Inactive222476
05/31/1997Inactive222576
06/30/1997Inactive222576
07/31/1997Inactive222576
08/31/1997Inactive222876
09/30/1997#3461222375
10/31/1997#3561221975
11/30/1997Inactive218884
12/31/1997Inactive218584
01/31/1998Inactive220987
02/28/1998Inactive221687
03/31/1998Inactive221687
04/30/1998Inactive221887
05/31/1998Inactive222087
06/30/1998Inactive221987
07/31/1998Inactive221987
08/31/1998Inactive222087
09/30/1998Inactive221686
10/31/1998Inactive221186

These ratings, calculated for Pankratov, 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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