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Career ratings for: Mittendorf, Frank

  Date of rating  

World Rank Rating +/- Age
01/31/1997#3610220775
02/28/1997#3625220775
03/31/1997#3611221175
04/30/1997#3706220575
05/31/1997#3711220475
06/30/1997#3723220375
07/31/1997#3401222875
08/31/1997#3412222875
09/30/1997#3423222675
10/31/1997#3447222775
11/30/1997#3420222675
12/31/1997#3919219875
01/31/1998Inactive220680
02/28/1998Inactive220680
03/31/1998Inactive221280
04/30/1998Inactive220780
05/31/1998Inactive220780
06/30/1998Inactive220580
07/31/1998Inactive222980
08/31/1998Inactive222076
09/30/1998Inactive221776
10/31/1998Inactive221776
11/30/1998Inactive221776
12/31/1998Inactive219176
01/11/1999Inactive219176
01/18/1999Inactive219176
01/25/1999Inactive219176
02/01/1999Inactive218984
02/08/1999Inactive219084
02/15/1999Inactive218984
02/22/1999Inactive219084
03/01/1999Inactive218884
03/08/1999Inactive218984
03/15/1999Inactive218984
03/22/1999Inactive219084
03/29/1999Inactive219084
04/05/1999Inactive219684
04/12/1999Inactive219684
04/19/1999Inactive219684
04/26/1999Inactive219684
05/03/1999Inactive219184
05/10/1999Inactive219084
05/17/1999Inactive219084
05/24/1999Inactive218984
05/31/1999Inactive218984
06/07/1999Inactive218884
06/14/1999Inactive218984
06/21/1999Inactive218884
06/28/1999Inactive218984
07/05/1999Inactive218884
07/12/1999Inactive218984
07/19/1999Inactive218984
07/26/1999Inactive219084
08/02/1999Inactive221384
08/09/1999Inactive221484
08/16/1999Inactive221284
08/23/1999Inactive221384
08/30/1999Inactive221284
09/06/1999Inactive221387
09/13/1999Inactive221387
09/20/1999Inactive221387
09/27/1999Inactive221387
10/04/1999Inactive221287
10/11/1999Inactive221287
10/18/1999Inactive221287
10/25/1999Inactive221287
11/01/1999Inactive221387
11/08/1999Inactive221287
11/15/1999Inactive221387
11/22/1999Inactive221287
11/29/1999Inactive221387
12/06/1999Inactive221487
12/13/1999Inactive221487
12/20/1999Inactive221387
12/27/1999Inactive221487
01/03/2000Inactive218987
01/10/2000Inactive219087
01/17/2000Inactive219087
01/24/2000Inactive219187
01/31/2000Inactive219187

These ratings, calculated for Mittendorf, Frank, 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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