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Career ratings for: Wiesmann, Hartwig

  Date of rating  

World Rank Rating +/- Age
10/31/1994#3257217869
11/30/1994#3335217969
12/31/1994#3415216969
01/31/1995#3584216570
02/28/1995#3557216970
03/31/1995#3593216970
04/30/1995#3605216970
05/31/1995#3644216970
06/30/1995#3626217170
07/31/1995#3645216970
08/31/1995#3699216770
09/30/1995#3757216870
10/31/1995Inactive217579
11/30/1995Inactive217379
12/31/1995Inactive216376
01/31/1996Inactive216276
02/29/1996Inactive216676
03/31/1996Inactive216776
04/30/1996Inactive216476
05/31/1996Inactive216476
06/30/1996Inactive216376
07/31/1996Inactive216276
08/31/1996Inactive216076
09/30/1996Inactive215976
10/31/1996Inactive216483
11/30/1996Inactive216283
12/31/1996Inactive215281
01/31/1997Inactive215487
02/28/1997Inactive215887
03/31/1997Inactive215987
04/30/1997Inactive215887
05/31/1997Inactive215687
06/30/1997Inactive215787
07/31/1997Inactive215687
08/31/1997Inactive215387
09/30/1997Inactive215287
10/31/1997Inactive215286
11/30/1997Inactive214986
12/31/1997Inactive214885
01/31/1998Inactive214388
02/28/1998Inactive214588
03/31/1998Inactive214688
04/30/1998Inactive214688
05/31/1998Inactive214688
06/30/1998Inactive214688
07/31/1998Inactive214588
08/31/1998Inactive214388
09/30/1998Inactive214688

These ratings, calculated for Wiesmann, Hartwig, 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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