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Career ratings for: Van der Nat, Nicholas

  Date of rating  

World Rank Rating +/- Age
11/13/2000Inactive209579
11/20/2000#4082208371
11/27/2000#4079208471
12/04/2000#4087208671
12/11/2000#4060208372
12/18/2000#4083208372
12/25/2000#4093208372
01/01/2001#4111208372
01/08/2001#4093208472
01/15/2001#4092208572
01/22/2001#4096208872
01/29/2001#4118208772
02/05/2001#4070208772
02/12/2001Inactive210977
02/19/2001Inactive210977
02/26/2001Inactive210877
03/05/2001Inactive210977
03/12/2001Inactive210877
03/19/2001Inactive210877
03/26/2001Inactive210877
04/02/2001Inactive210877
04/09/2001Inactive210877
04/16/2001Inactive210877
04/23/2001Inactive210677
04/30/2001Inactive210677
05/07/2001Inactive210877
05/14/2001Inactive210977
05/21/2001Inactive210877
05/28/2001Inactive210877
06/04/2001Inactive210777
06/11/2001Inactive210577
06/18/2001Inactive210877
06/25/2001Inactive211077
07/02/2001Inactive210977
07/09/2001Inactive210977
07/16/2001Inactive210877
07/23/2001Inactive210877
07/30/2001Inactive210977
08/06/2001Inactive210977
08/13/2001#4087208872
08/20/2001#4105208872
08/27/2001#4193208872
09/03/2001#4209208972
09/10/2001#4231209072

These ratings, calculated for Van der Nat, Nicholas, 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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