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Career ratings for: Perovic, Dragan

  Date of rating  

World Rank Rating +/- Age
01/31/1988#793235275
02/29/1988#780236075
03/31/1988#754236475
04/30/1988#748236775
05/31/1988#753236575
06/30/1988#739236875
07/31/1988#725237375
08/31/1988#716237775
09/30/1988#723237675
10/31/1988#735237375
11/30/1988#758237475
12/31/1988#798237475
01/31/1989Inactive235086
02/28/1989Inactive235586
03/31/1989Inactive236086
04/30/1989Inactive236286
05/31/1989Inactive236186
06/30/1989Inactive236286
07/31/1989Inactive236786
08/31/1989Inactive237286
09/30/1989Inactive237186
10/31/1989Inactive236986
11/30/1989Inactive237086
12/31/1989Inactive241881
01/31/1990Inactive243882
02/28/1990Inactive243782
03/31/1990Inactive244082
04/30/1990Inactive244582
05/31/1990Inactive244182
06/30/1990Inactive244482
07/31/1990Inactive244682
08/31/1990Inactive245182
09/30/1990Inactive245082
10/31/1990#351248675
11/30/1990#349248375
12/31/1990Inactive246976
01/31/1991#473245869
02/28/1991#467245869
03/31/1991#468246069
04/30/1991#450246769
05/31/1991#456246769
06/30/1991#451246869
07/31/1991#460246568
08/31/1991#438247168
09/30/1991#445247168
10/31/1991#442247074
11/30/1991#455246874
12/31/1991#516245474
01/31/1992Inactive245579
02/29/1992Inactive245679
03/31/1992Inactive245879
04/30/1992Inactive246079
05/31/1992Inactive245979
06/30/1992Inactive245979
07/31/1992Inactive245877
08/31/1992Inactive246377
09/30/1992Inactive246477
10/31/1992Inactive246684
11/30/1992Inactive246284
12/31/1992Inactive245185
07/31/1993Inactive245288
08/31/1993Inactive245788
09/30/1993Inactive245788
01/31/1994#959240069
02/28/1994#965239869
03/31/1994#943239869
04/30/1994#929240069
05/31/1994#931240269
06/30/1994#918240269
07/31/1994#927240269
08/31/1994#919240569
09/30/1994#919240569
10/31/1994#988239569
11/30/1994#998239769
12/31/1994#1100238669
01/31/1995Inactive239179
02/28/1995Inactive238979
03/31/1995Inactive239079
04/30/1995Inactive239379
05/31/1995Inactive239279
06/30/1995Inactive239579
07/31/1995Inactive239478
08/31/1995Inactive239878
09/30/1995Inactive239978
10/31/1995Inactive239479
11/30/1995Inactive239279
12/31/1995Inactive238379
01/31/1996#1148239271
02/29/1996#1179239171
03/31/1996#1162239171
04/30/1996#1134239271
05/31/1996#1147239171
06/30/1996#1117239371
07/31/1996#1118239171
08/31/1996#1093239571
09/30/1996#1109239471
10/31/1996#1169238971
11/30/1996#1157238871
12/31/1996#1279238071
01/31/1997Inactive238581
02/28/1997Inactive238381
03/31/1997Inactive238381
04/30/1997Inactive238581
05/31/1997Inactive238381
06/30/1997Inactive238681
07/31/1997Inactive238581
08/31/1997Inactive238881
09/30/1997Inactive238681
10/31/1997Inactive238281
11/30/1997Inactive238081
12/31/1997Inactive237081

These ratings, calculated for Perovic, Dragan, 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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