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Career ratings for: Schneiders, Albert

  Date of rating  

World Rank Rating +/- Age
01/31/1990#1853217075
02/28/1990#1857216575
03/31/1990Inactive218076
04/30/1990Inactive218176
05/31/1990Inactive217776
06/30/1990Inactive218376
07/31/1990Inactive218276
08/31/1990Inactive218576
09/30/1990Inactive223482
10/31/1990Inactive223082
11/30/1990Inactive222482
12/31/1990Inactive222382
01/31/1991Inactive215576
02/28/1991Inactive215376
03/31/1991Inactive216577
04/30/1991Inactive216777
05/31/1991Inactive216877
06/30/1991Inactive217477
07/31/1991Inactive217377
08/31/1991Inactive217677
09/30/1991Inactive222080
10/31/1991Inactive221780
11/30/1991Inactive221380
12/31/1991Inactive221180
01/31/1992Inactive215287
02/29/1992Inactive215187
03/31/1992Inactive216388
04/30/1992Inactive216188
05/31/1992Inactive216088
06/30/1992Inactive216588
07/31/1992Inactive216688
08/31/1992Inactive216888

These ratings, calculated for Schneiders, Albert, 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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