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Career ratings for: Maeder, Karl Heinz

  Date of rating  

World Rank Rating +/- Age
03/31/1969#187243666
06/30/1969#155245765
09/30/1969#160245365
12/31/1969#170244865
02/28/1970#227241855
04/30/1970#178243756
06/30/1970#164244756
08/31/1970#165244856
10/31/1970#170244756
12/31/1970#178244556
02/28/1971#216241960
04/30/1971#179243962
06/30/1971#167245062
08/31/1971#169245162
10/31/1971#170245062
12/31/1971#175244562
02/29/1972#234242868
04/30/1972#186244870
06/30/1972#171246070
08/31/1972#171246170
10/31/1972#169245670
12/31/1972#177245370
02/28/1973Inactive243077
04/30/1973Inactive244880
06/30/1973Inactive246180
08/31/1973Inactive246180
10/31/1973Inactive245980
12/31/1973Inactive245580
02/28/1974Inactive243088
08/31/1990Inactive222577
09/30/1990Inactive222477
10/31/1990Inactive222077
11/30/1990Inactive221977
12/31/1990Inactive222377
01/31/1991#1978219675
02/28/1991#1993219775
03/31/1991#2122216971
04/30/1991#2116217071
05/31/1991#2142216871
06/30/1991#2166216671
07/31/1991Inactive223776
08/31/1991Inactive222978
09/30/1991Inactive222978
10/31/1991Inactive222278
11/30/1991Inactive222278
12/31/1991Inactive222478
01/31/1992Inactive220277
02/29/1992Inactive220577
03/31/1992Inactive216781
04/30/1992Inactive216381
05/31/1992Inactive216081
06/30/1992Inactive215781
07/31/1992Inactive223087
08/31/1992Inactive222289
09/30/1992Inactive222289
10/31/1992Inactive221889
11/30/1992Inactive221589
12/31/1992Inactive222189
01/31/1993Inactive219788
02/28/1993Inactive219988
08/31/1996Inactive218982
09/30/1996Inactive218882
10/31/1996Inactive218482
11/30/1996Inactive218482
12/31/1996Inactive218782
01/31/1997#3527221372
02/28/1997#3524221572
03/31/1997#3902219072
04/30/1997#3915219072
05/31/1997#3965218672
06/30/1997#3973218672
07/31/1997Inactive224377
08/31/1997Inactive221677
09/30/1997Inactive221577
10/31/1997Inactive221277
11/30/1997Inactive221177
12/31/1997Inactive221377
01/31/1998Inactive220383
02/28/1998Inactive220583
03/31/1998Inactive218283
04/30/1998Inactive218383
05/31/1998Inactive218183
06/30/1998Inactive218083
07/31/1998Inactive223787
08/31/1998Inactive220987
09/30/1998Inactive220887
10/31/1998Inactive220487
11/30/1998Inactive220387
12/31/1998Inactive220487
01/11/1999Inactive220487
01/18/1999Inactive220487
01/25/1999Inactive220587

These ratings, calculated for Maeder, Karl Heinz, 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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