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Career ratings for: Kirpichnikov, Vladimir S

  Date of rating  

World Rank Rating +/- Age
02/28/1978#398235965
04/30/1978#437234265
06/30/1978#459234265
08/31/1978#421237464
10/31/1978#428237264
12/31/1978#440237064
02/28/1979#481235273
04/30/1979#515233774
06/30/1979#494233674
08/31/1979#447236372
10/31/1979#453236372
12/31/1979#453236472
01/31/1980#477236572
02/29/1980Inactive234984
03/31/1980Inactive234984
04/30/1980Inactive233584
05/31/1980Inactive233584
06/30/1980Inactive233884
07/31/1980Inactive233984
08/31/1980Inactive236683
09/30/1980Inactive236683
10/31/1980Inactive236483
11/30/1980Inactive236483
12/31/1980Inactive236083
01/31/1981Inactive235983
01/31/1994#1427234873
02/28/1994#1436235073
03/31/1994#1436234873
04/30/1994#1434234873
05/31/1994#1479234673
06/30/1994#1445234873
07/31/1994Inactive235279
08/31/1994Inactive235379
09/30/1994Inactive235979
10/31/1994Inactive236079
11/30/1994Inactive236879
12/31/1994Inactive236779
01/31/1995Inactive234083
02/28/1995Inactive234283
03/31/1995Inactive234083
04/30/1995Inactive234183
05/31/1995Inactive233783
06/30/1995Inactive234183

These ratings, calculated for Kirpichnikov, Vladimir S, 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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