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Career ratings for: Dammer, Christian

  Date of rating  

World Rank Rating +/- Age
07/31/1992#2566215673
08/31/1992Inactive221077
09/30/1992Inactive220877
10/31/1992Inactive221277
11/30/1992Inactive220977
12/31/1992Inactive221477
01/31/1993Inactive220179
02/28/1993Inactive219979
03/31/1993Inactive219579
04/30/1993Inactive219579
05/31/1993Inactive219479
06/30/1993Inactive219579
07/31/1993Inactive215083
08/31/1993Inactive220488
09/30/1993Inactive220288
10/31/1993Inactive220588
11/30/1993Inactive220488
12/31/1993Inactive220788

These ratings, calculated for Dammer, Christian, 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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