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Career ratings for: Campbell, Brett

  Date of rating  

World Rank Rating +/- Age
01/31/1996#4365209675
02/29/1996#4387209775
03/31/1996#4386209775
04/30/1996#4389209575
05/31/1996#4383209475
06/30/1996#4405209575
07/31/1996Inactive210877
08/31/1996#4470210472
09/30/1996#4549210472
10/31/1996#4552210172
11/30/1996#4575210272
12/31/1996#4613210372
01/31/1997#4606209372
02/28/1997#4615209472
03/31/1997#4666209272
04/30/1997#4701208972
05/31/1997#4732209072
06/30/1997#4718209272
07/31/1997#4729210172
08/31/1997#4779209475
09/30/1997#4811209275
10/31/1997#4907209175
11/30/1997#4906209475
12/31/1997#4946209375
01/31/1998Inactive208482
02/28/1998Inactive208482
03/31/1998Inactive208582
04/30/1998Inactive208482
05/31/1998Inactive208482
06/30/1998Inactive208482
07/31/1998Inactive209382
08/31/1998Inactive209380
09/30/1998Inactive209380
10/31/1998Inactive209480
11/30/1998Inactive209580
12/31/1998Inactive209480
01/11/1999Inactive209380
01/18/1999Inactive209480
01/25/1999Inactive209480
02/01/1999Inactive208785
02/08/1999Inactive208785
02/15/1999Inactive208785
02/22/1999Inactive208685
03/01/1999Inactive208785
03/08/1999Inactive208985
03/15/1999Inactive208885
03/22/1999Inactive208885
03/29/1999Inactive208885
04/05/1999Inactive208885
04/12/1999Inactive208885
04/19/1999Inactive208885
04/26/1999Inactive208885
05/03/1999Inactive208785
05/10/1999Inactive208685
05/17/1999Inactive208685
05/24/1999Inactive208685
05/31/1999Inactive208785
06/07/1999Inactive208785
06/14/1999Inactive208785
06/21/1999Inactive208785
06/28/1999Inactive208785
07/05/1999Inactive208785
07/12/1999Inactive208785
07/19/1999Inactive208785
07/26/1999Inactive208885
08/02/1999Inactive209686
08/09/1999Inactive209786
08/16/1999Inactive209786
08/23/1999Inactive209686
08/30/1999Inactive209686
09/20/1999Inactive210184
09/27/1999Inactive210184
10/04/1999Inactive209984
10/11/1999Inactive209884
10/18/1999Inactive209884
10/25/1999Inactive209884
11/01/1999Inactive209984
11/08/1999Inactive209884
11/15/1999Inactive209984
11/22/1999Inactive209884
11/29/1999Inactive209984
12/06/1999Inactive210284
12/13/1999Inactive210284
12/20/1999Inactive210184
12/27/1999Inactive210184
01/03/2000Inactive210284
01/10/2000Inactive210284
01/17/2000Inactive210184
01/24/2000Inactive210284
01/31/2000Inactive210284
02/07/2000Inactive209787
02/14/2000Inactive209687
02/21/2000Inactive209787
02/28/2000Inactive209887
03/06/2000Inactive209887
03/13/2000Inactive209887
03/20/2000Inactive209887
03/27/2000Inactive209887
04/03/2000Inactive209887
04/10/2000Inactive209787
04/17/2000Inactive209787
04/24/2000Inactive209981
05/01/2000Inactive209881
05/08/2000Inactive209781
05/15/2000Inactive209981
05/22/2000Inactive209981
05/29/2000Inactive209781
06/05/2000Inactive209781
06/12/2000Inactive209981
06/19/2000Inactive209881
06/26/2000Inactive209881
07/03/2000Inactive209881
07/10/2000Inactive209981
07/17/2000Inactive209981
07/24/2000Inactive209981
07/31/2000Inactive210477
08/07/2000Inactive211177
08/14/2000Inactive211277
08/21/2000Inactive211377
08/28/2000Inactive211182
09/04/2000Inactive211082
09/11/2000Inactive210583
09/18/2000Inactive210583
09/25/2000Inactive210387
10/02/2000Inactive210187
10/09/2000Inactive210087
10/16/2000Inactive210187
10/23/2000Inactive210187
10/30/2000Inactive210187
11/06/2000Inactive210187
11/13/2000Inactive210087
11/20/2000Inactive209987
11/27/2000Inactive210087
12/04/2000Inactive210187
12/11/2000Inactive210487
12/18/2000Inactive210587
12/25/2000Inactive210487
01/01/2001Inactive210487
01/08/2001Inactive210487
01/15/2001Inactive210587
01/22/2001Inactive210687
01/29/2001Inactive210587
02/05/2001Inactive210487
02/12/2001Inactive210188
02/19/2001Inactive210188
02/26/2001Inactive210188
03/05/2001Inactive210188
03/12/2001Inactive210188
03/19/2001Inactive210188
03/26/2001Inactive210188
04/02/2001Inactive210188
04/09/2001Inactive210188
04/16/2001Inactive210088
04/23/2001Inactive209988
04/30/2001Inactive209985
05/07/2001Inactive210185
05/14/2001Inactive210285
05/21/2001Inactive210085
05/28/2001Inactive210085
06/04/2001Inactive209985
06/11/2001Inactive209885
06/18/2001Inactive209985
06/25/2001Inactive210185
07/02/2001Inactive210185
07/09/2001Inactive210085
07/16/2001Inactive210185
07/23/2001Inactive210185
07/30/2001Inactive210185
08/06/2001Inactive209988
08/13/2001Inactive210788
08/20/2001Inactive210788
08/27/2001Inactive210788

These ratings, calculated for Campbell, Brett, 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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