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Career ratings for: Nystroem, Leif

  Date of rating  

World Rank Rating +/- Age
04/30/1995Inactive214289
05/31/1995Inactive214289
06/30/1995Inactive214389
07/31/1995Inactive214489
08/31/1995Inactive215089
09/30/1995Inactive214989
10/31/1995Inactive215189
11/30/1995Inactive215389
12/31/1995Inactive215189
01/31/1996#4343210773
02/29/1996#4348211373
03/31/1996#4362210973
04/30/1996#4220213972
05/31/1996#4211213872
06/30/1996#4221213872
07/31/1996#4241213972
08/31/1996#4255214472
09/30/1996#4319214472
10/31/1996#4327214272
11/30/1996#4345214272
12/31/1996#4375214272
01/31/1997#4540211373
02/28/1997#4534211873
03/31/1997#4610211273
04/30/1997#4460213973
05/31/1997#4493213873
06/30/1997#4485214073
07/31/1997#4489214273
08/31/1997#4512214373
09/30/1997#4520214273
10/31/1997#4613214273
11/30/1997#4600214373
12/31/1997#4642214273
01/31/1998Inactive211779
02/28/1998Inactive212279
03/31/1998Inactive211778
04/30/1998Inactive214578
05/31/1998Inactive214578
06/30/1998Inactive214578
07/31/1998Inactive214678
08/31/1998Inactive214778
09/30/1998Inactive214878
10/31/1998Inactive214978
11/30/1998Inactive214978
12/31/1998Inactive214778
01/11/1999Inactive214678
01/18/1999Inactive214778
01/25/1999Inactive214778
05/03/1999Inactive213889
05/10/1999Inactive213889
05/17/1999Inactive213889
05/24/1999Inactive213889
05/31/1999Inactive213889
06/07/1999Inactive213889
06/14/1999Inactive213989
06/21/1999Inactive213889
06/28/1999Inactive213889
07/05/1999Inactive213889
07/12/1999Inactive213889
07/19/1999Inactive213889
07/26/1999Inactive213989
08/02/1999Inactive214089
08/09/1999Inactive214189
08/16/1999Inactive214089
08/23/1999Inactive213989
08/30/1999Inactive214089
09/06/1999Inactive214289
09/13/1999Inactive214189
09/20/1999Inactive214289
09/27/1999Inactive214289
10/04/1999Inactive214189
10/11/1999Inactive214189
10/18/1999Inactive214189
10/25/1999Inactive214189
11/01/1999Inactive214289
11/08/1999Inactive214189
11/15/1999Inactive214289
11/22/1999Inactive214189
11/29/1999Inactive214289
12/06/1999Inactive214489
12/13/1999Inactive214389
12/20/1999Inactive214289
12/27/1999Inactive214289
01/03/2000Inactive214389
01/10/2000Inactive214389
01/17/2000Inactive214389
01/24/2000Inactive214389
01/31/2000Inactive214389

These ratings, calculated for Nystroem, Leif, 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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