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Career ratings for: Pineda, Boris

  Date of rating  

World Rank Rating +/- Age
06/30/1976#516225773
08/31/1976#511226073
10/31/1976#513226473
12/31/1976#550225973
02/28/1977#514226473
04/30/1977#533226473
06/30/1977Inactive225883
08/31/1977Inactive226283
10/31/1977Inactive226283
12/31/1977Inactive225583
02/28/1978Inactive225883
04/30/1978Inactive225583
09/30/1996#3760219567
10/31/1996#3746219667
11/30/1996#2563228269
12/31/1996#2590228269
01/31/1997#3897218764
02/28/1997#3851219265
03/31/1997#3892219165
04/30/1997#3833219565
05/31/1997#3686220664
06/30/1997#3649220964
07/31/1997#3649220964
08/31/1997#3861219663
09/30/1997#3869219567
10/31/1997#3923219667
11/30/1997#2723227267
12/31/1997#2753227167
01/31/1998#4058217673
02/28/1998#4003218274
03/31/1998#4022218374
04/30/1998#3971218974
05/31/1998#3806220073
06/30/1998#3804220273
07/31/1998#3799220373
08/31/1998#4046218872
09/30/1998Inactive218876
10/31/1998Inactive218776
11/30/1998Inactive226377
12/31/1998Inactive226277
01/11/1999Inactive226277
01/18/1999Inactive226277
01/25/1999Inactive226377
02/01/1999Inactive216883
02/08/1999Inactive216883
02/15/1999Inactive216883
02/22/1999Inactive216883
03/01/1999Inactive217284
03/08/1999Inactive217384
03/15/1999Inactive217284
03/22/1999Inactive217484
03/29/1999Inactive217484
04/05/1999Inactive217584
04/12/1999Inactive217584
04/19/1999Inactive217584
04/26/1999Inactive217584
05/03/1999Inactive218084
05/10/1999Inactive217984
05/17/1999Inactive217984
05/24/1999Inactive217884
05/31/1999Inactive217884
06/07/1999Inactive218983
06/14/1999Inactive218983
06/21/1999Inactive218883
06/28/1999Inactive218983
07/05/1999Inactive219383
07/12/1999Inactive219383
07/19/1999Inactive219483
07/26/1999Inactive219483
08/02/1999Inactive219583
08/09/1999Inactive219783
08/16/1999Inactive219483
08/23/1999Inactive219583
08/30/1999Inactive219483
09/06/1999Inactive218182
09/13/1999Inactive218182
09/20/1999Inactive218182
09/27/1999Inactive218182
10/04/1999Inactive218387
10/11/1999Inactive218287
10/18/1999Inactive218387
10/25/1999Inactive218387
11/01/1999Inactive218387
11/08/1999Inactive218387
11/15/1999Inactive218387
11/22/1999Inactive218387
11/29/1999Inactive218387
12/06/1999Inactive226088
12/13/1999Inactive226188
12/20/1999Inactive226088
12/27/1999Inactive226088
01/03/2000Inactive226188
01/10/2000Inactive226188
01/17/2000Inactive226288
01/24/2000Inactive226288
01/31/2000Inactive226388

These ratings, calculated for Pineda, Boris, 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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