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Career ratings for: Pedersen, B.

  Date of rating  

World Rank Rating +/- Age
01/31/1991#2010218673
02/28/1991#2162212969
03/31/1991#2220212869
04/30/1991#2211213169
05/31/1991#2227213169
06/30/1991#2237213369
07/31/1991#2264213269
08/31/1991#2282213269
09/30/1991#2294213369
10/31/1991#2320213069
11/30/1991#2314213069
12/31/1991#2318212869
01/31/1992Inactive218283
02/29/1992Inactive212479
03/31/1992Inactive212479
04/30/1992Inactive212379
05/31/1992Inactive212179
06/30/1992Inactive212579
07/31/1992Inactive212779
08/31/1992Inactive212679
09/30/1992Inactive212779
10/31/1992Inactive212479
11/30/1992Inactive212279
12/31/1992Inactive212479
01/31/1993Inactive216681
02/28/1993Inactive213179
03/31/1993Inactive213279
04/30/1993Inactive213379
05/31/1993Inactive213079
06/30/1993Inactive213479
07/31/1993Inactive213479
08/31/1993Inactive213479
09/30/1993Inactive213579
10/31/1993Inactive213279
11/30/1993Inactive213279
12/31/1993Inactive213279
01/31/1994Inactive215376
02/28/1994#3366213575
03/31/1994#3390213475
04/30/1994#3372213575
05/31/1994#3381213875
06/30/1994#3361214673
07/31/1994#3348215371
08/31/1994#3412215171
09/30/1994#3450214971
10/31/1994#3457214771
11/30/1994#3536214971
12/31/1994#3549214871
01/31/1995Inactive214687
02/28/1995Inactive212986
03/31/1995Inactive212986
04/30/1995Inactive212986
05/31/1995Inactive213086
06/30/1995Inactive213883
07/31/1995Inactive214481
08/31/1995Inactive214481
09/30/1995Inactive214581
10/31/1995Inactive214381
11/30/1995Inactive214281
12/31/1995Inactive214281

These ratings, calculated for Pedersen, B., 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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