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Career ratings for: Paniagua, Roberto

  Date of rating  

World Rank Rating +/- Age
12/31/1980Inactive219577
01/31/1981#753218574
02/28/1981#715218375
03/31/1981#725218275
04/30/1981#735218775
05/31/1981#727218775
06/30/1981#736218575
07/31/1981#760218475
08/31/1981#759218575
09/30/1981#758218475
10/31/1981#767218475
11/30/1981#761218575
12/31/1981Inactive218082
01/31/1982Inactive217484
02/28/1982Inactive217585
03/31/1982Inactive217585
04/30/1982Inactive218185
05/31/1982Inactive217985
06/30/1982Inactive217785
07/31/1982Inactive217685
08/31/1982Inactive218085
09/30/1982Inactive217785
10/31/1982Inactive218085
11/30/1982Inactive218085

These ratings, calculated for Paniagua, Roberto, 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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