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Career ratings for: Papapostolou, Christos

  Date of rating  

World Rank Rating +/- Age
12/31/1962Inactive222981
03/31/1963Inactive223281
06/30/1963Inactive224381
12/31/1964Inactive225084
03/31/1965Inactive226384
06/30/1965Inactive226784
09/30/1965Inactive227287
03/31/1967Inactive223980
06/30/1967Inactive224380
09/30/1967Inactive220880
12/31/1967Inactive222881
07/31/1991Inactive217086
08/31/1991Inactive216886
09/30/1991Inactive217386
10/31/1991Inactive217186
11/30/1991Inactive216886
01/31/1996Inactive214882
02/29/1996Inactive217288
03/31/1996Inactive216889
04/30/1996Inactive216989
05/31/1996Inactive216889
06/30/1996Inactive216789
07/31/1996Inactive215489
08/31/1996Inactive215289
09/30/1996Inactive215689
10/31/1996Inactive213483
11/30/1996Inactive213383
12/31/1996Inactive214683
11/30/1997Inactive213186
12/31/1997Inactive213386
08/31/1998#4729213772
09/30/1998#4748214072
10/31/1998#4810213871
11/30/1998#4873213670
12/31/1998#4883213870
01/11/1999#4567213870
01/18/1999#4574213870
01/25/1999#4588213870
02/01/1999#3918213671
02/08/1999#3924213671
02/15/1999#3945213671
02/22/1999#3976213571
03/01/1999#3913214271
03/08/1999#3921214371
03/15/1999#3923214271
03/22/1999#3926214271
03/29/1999#3934214271
04/05/1999#3941214271
04/12/1999#3955214271
04/19/1999#3964214271
04/26/1999#3983214271
05/03/1999#3966214271
05/10/1999#3969214171
05/17/1999#3983214171
05/24/1999#4001214171
05/31/1999#4021214271
06/07/1999#4012214271
06/14/1999#4019214271
06/21/1999#4031214271
06/28/1999#4038214271
07/05/1999#4024214271
07/12/1999#4034214171
07/19/1999#4043214271
07/26/1999#4078214271
08/02/1999#4071213871
08/09/1999#4083213971
08/16/1999#4097213871
08/23/1999#4137213771
08/30/1999#4144213871
09/06/1999Inactive213378
09/13/1999Inactive213378
09/20/1999Inactive213478
09/27/1999Inactive213478
10/04/1999Inactive213578
10/11/1999Inactive213478
10/18/1999Inactive213478
10/25/1999Inactive213578
11/01/1999Inactive213277
11/08/1999Inactive213277
11/15/1999Inactive213277
11/22/1999Inactive213177
11/29/1999Inactive213277
12/06/1999Inactive213180
12/13/1999Inactive213180
12/20/1999Inactive213080
12/27/1999Inactive213080
01/03/2000Inactive213480
01/10/2000Inactive213480
01/17/2000Inactive213480
01/24/2000Inactive213480
01/31/2000Inactive213480
02/07/2000Inactive213181
02/14/2000Inactive213181
02/21/2000Inactive213281
02/28/2000Inactive213381
03/06/2000Inactive213881
03/13/2000Inactive213881
03/20/2000Inactive213881
03/27/2000Inactive213881
04/03/2000Inactive213881
04/10/2000Inactive213781
04/17/2000Inactive213781
04/24/2000Inactive213681
05/01/2000Inactive213581
05/08/2000Inactive213581
05/15/2000Inactive213781
05/22/2000Inactive213781
05/29/2000Inactive213581
06/05/2000Inactive213581
06/12/2000Inactive213681
06/19/2000Inactive213681
06/26/2000Inactive213681
07/03/2000Inactive213681
07/10/2000Inactive213681
07/17/2000Inactive213681
07/24/2000Inactive213681
07/31/2000Inactive213681
08/07/2000Inactive213181
08/14/2000Inactive213281
08/21/2000Inactive213381
08/28/2000Inactive213281
09/04/2000Inactive213181
09/11/2000Inactive212789
09/18/2000Inactive212889
09/25/2000Inactive212789
10/02/2000Inactive212689
10/09/2000Inactive212889
10/16/2000Inactive212989
10/23/2000Inactive212989
10/30/2000Inactive212989
11/06/2000Inactive212688
11/13/2000Inactive212588
11/20/2000Inactive212588
11/27/2000Inactive212588
12/04/2000Inactive212788

These ratings, calculated for Papapostolou, Christos, 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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