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Career ratings for: Duarte, Riccardo

  Date of rating  

World Rank Rating +/- Age
03/31/1995Inactive210781
04/30/1995Inactive210881
05/31/1995Inactive212583
06/30/1995Inactive212883
07/31/1995Inactive212883
08/31/1995Inactive212983
09/30/1995Inactive213083
12/31/1995Inactive213783
03/31/1996Inactive210984
04/30/1996Inactive211084
05/31/1996Inactive211586
06/30/1996Inactive211686
12/31/1996Inactive215486
01/31/1997Inactive211780
02/28/1997Inactive211780
03/31/1997Inactive211277
04/30/1997Inactive211277
05/31/1997Inactive211678
06/30/1997Inactive211878
07/31/1997Inactive211880
08/31/1997Inactive211980
09/30/1997Inactive211980
10/31/1997Inactive211380
11/30/1997Inactive211180
12/31/1997Inactive211782
01/31/1998Inactive210879
02/28/1998Inactive210779
03/31/1998Inactive211378
04/30/1998Inactive211578
05/31/1998Inactive211878
06/30/1998#4758212175
07/31/1998Inactive212376
08/31/1998Inactive212376
09/30/1998Inactive212576
10/31/1998Inactive212276
11/30/1998Inactive211976
12/31/1998Inactive212276
01/11/1999Inactive212276
01/18/1999Inactive212276
01/25/1999Inactive212376
02/01/1999Inactive210783
02/08/1999Inactive210783
02/15/1999Inactive210783
02/22/1999Inactive211179
03/01/1999Inactive211079
03/08/1999Inactive211179
03/15/1999Inactive211179
03/22/1999Inactive211079
03/29/1999Inactive211179
04/05/1999Inactive211578
04/12/1999Inactive211578
04/19/1999Inactive211578
04/26/1999Inactive211578
05/03/1999Inactive211678
05/10/1999Inactive211578
05/17/1999Inactive211578
05/24/1999Inactive211578
05/31/1999Inactive211678
06/07/1999Inactive211978
06/14/1999Inactive211978
06/21/1999Inactive211978
06/28/1999Inactive211978
07/05/1999Inactive211980
07/12/1999Inactive211880
07/19/1999Inactive211980
07/26/1999Inactive211980
08/02/1999Inactive212081
08/09/1999Inactive212281
08/16/1999Inactive212181
08/23/1999Inactive212081
08/30/1999Inactive212081
09/06/1999#4165212474
09/13/1999#4193212474
09/20/1999#4204212574
09/27/1999#4220212574
10/04/1999#4125212574
10/11/1999#4149212574
10/18/1999#4198212574
10/25/1999#4217212574
11/01/1999#4071212274
11/08/1999#4085212274
11/15/1999#4108212274
11/22/1999#4135212274
11/29/1999#4165212274
12/06/1999#4085212174
12/13/1999#4109212174
12/20/1999#4121212074
12/27/1999#4140212074
01/03/2000#4103212370
01/10/2000#4124212470
01/17/2000#4149212370
01/24/2000#4163212470
01/31/2000#4164212470
02/07/2000#3783211172
02/14/2000#3784211072
02/21/2000#3802211272
02/28/2000#3804211373
03/06/2000#3780211173
03/13/2000#3812211073
03/20/2000#3818211073
03/27/2000#3824211173
04/03/2000#3834211173
04/10/2000#3812211273
04/17/2000#3839211273
04/24/2000#3860211173
05/01/2000#3862211173
05/08/2000#3852211173
05/15/2000#3862211373
05/22/2000#3869211373
05/29/2000#3883211173
06/05/2000#3896211173
06/12/2000#3879211573
06/19/2000#3922211473
06/26/2000#3926211473
07/03/2000#3947211473
07/10/2000#3920211473
07/17/2000#3934211473
07/24/2000#3949211473
07/31/2000#3971211473
08/07/2000#3953211573
08/14/2000#3967211673
08/21/2000#3986211773
08/28/2000#3996211673
09/04/2000#4032211573
09/11/2000Inactive211876
09/18/2000Inactive211876
09/25/2000Inactive211880
10/02/2000Inactive211785
10/09/2000Inactive211885
10/16/2000Inactive211985
10/23/2000Inactive211985
10/30/2000Inactive211985
11/06/2000Inactive211685
11/13/2000Inactive211585
11/20/2000Inactive211585
11/27/2000Inactive211585
12/04/2000Inactive211785
12/11/2000Inactive211585
12/18/2000Inactive211685
12/25/2000Inactive211685
01/01/2001Inactive211685
01/08/2001Inactive211880
01/15/2001Inactive211880
01/22/2001Inactive211980
01/29/2001Inactive211980
02/05/2001Inactive211880
02/12/2001Inactive210682
02/19/2001Inactive210682
02/26/2001Inactive210682
03/05/2001Inactive210683
03/12/2001Inactive210583
03/19/2001Inactive210483
03/26/2001Inactive210483
04/02/2001Inactive210583
04/09/2001Inactive210583
04/16/2001Inactive210683
04/23/2001Inactive210583
04/30/2001Inactive210483
05/07/2001Inactive210583
05/14/2001Inactive210883
05/21/2001Inactive210683
05/28/2001Inactive210683
06/04/2001Inactive210683
06/11/2001Inactive210483
06/18/2001Inactive210883
06/25/2001Inactive210983
07/02/2001Inactive211083
07/09/2001Inactive210983
07/16/2001Inactive210884
07/23/2001Inactive210984
07/30/2001Inactive210984
08/06/2001Inactive210984
08/13/2001Inactive211184
08/20/2001Inactive211184
08/27/2001Inactive211184
09/03/2001Inactive211184
09/10/2001Inactive211184

These ratings, calculated for Duarte, Riccardo, 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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