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Career ratings for: Nobrega, Adaucto da

  Date of rating  

World Rank Rating +/- Age
02/28/1970Inactive219187
04/30/1970Inactive219488
06/30/1970Inactive219788
08/31/1970Inactive219888
10/31/1970Inactive220088
12/31/1970Inactive220088
02/28/1971Inactive219582
04/30/1971Inactive219783
06/30/1971Inactive219983
08/31/1971Inactive220083
10/31/1971Inactive219883
12/31/1971Inactive219883
02/29/1972Inactive225176
04/30/1972Inactive225377
06/30/1972Inactive225577
08/31/1972Inactive225677
10/31/1972#518225471
12/31/1972#500225871
02/28/1973#509228370
04/30/1973#499228370
06/30/1973#496228570
08/31/1973#498228670
10/31/1973#489228074
12/31/1973#475228574
02/28/1974Inactive227680
04/30/1974Inactive227480
06/30/1974Inactive226976
08/31/1974Inactive227076
10/31/1974Inactive226180
12/31/1974Inactive226580
02/28/1975Inactive226284
04/30/1975Inactive226184
06/30/1975Inactive226387
08/31/1975Inactive226487
04/05/1999#3750216475
04/12/1999#3763216475
04/19/1999#3770216475
04/26/1999#3784216475
05/03/1999#3829215875
05/10/1999#3830215775
05/17/1999#3845215775
05/24/1999#3880215675
05/31/1999#3900215775
04/10/2000Inactive216086
04/17/2000Inactive216086
04/24/2000Inactive215986
05/01/2000Inactive215986
05/08/2000Inactive215186
05/15/2000Inactive215386
05/22/2000Inactive215286
05/29/2000Inactive215286
06/05/2000Inactive215286

These ratings, calculated for Nobrega, Adaucto da, 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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