Back to names list

Career ratings for: Siuniakov, Igor

  Date of rating  

World Rank Rating +/- Age
01/31/1998Inactive224177
02/28/1998#2836226174
03/31/1998#2844226374
04/30/1998#2849226374
05/31/1998#3049225174
06/30/1998#3129224674
07/31/1998#3077224974
08/31/1998#3188224474
09/30/1998#3205224274
10/31/1998#3279223774
11/30/1998#3302223574
12/31/1998#3328223574
01/11/1999#3086223574
01/18/1999#3087223574
01/25/1999#3099223674
02/01/1999Inactive223388
02/08/1999Inactive223488
02/15/1999Inactive223388
02/22/1999Inactive223488
03/01/1999Inactive225184
03/08/1999Inactive225384
03/15/1999Inactive225284
03/22/1999Inactive225384
03/29/1999Inactive225384
04/05/1999Inactive225584
04/12/1999Inactive225584
04/19/1999Inactive225584
04/26/1999Inactive225584
05/03/1999Inactive225584
05/10/1999Inactive225484
05/17/1999Inactive225484
05/24/1999Inactive225384
05/31/1999Inactive225384
06/07/1999Inactive224084
06/14/1999Inactive224184
06/21/1999Inactive224084
06/28/1999Inactive224184
07/05/1999Inactive223784
07/12/1999Inactive223884
07/19/1999Inactive223884
07/26/1999Inactive223984
08/02/1999Inactive224284
08/09/1999Inactive224384
08/16/1999Inactive224184
08/23/1999Inactive224184
08/30/1999Inactive224184
09/06/1999Inactive223784
09/13/1999Inactive223784
09/20/1999Inactive223784
09/27/1999Inactive223784
10/04/1999Inactive223684
10/11/1999Inactive223684
10/18/1999Inactive223684
10/25/1999Inactive223684
11/01/1999Inactive223384
11/08/1999Inactive223284
11/15/1999Inactive223384
11/22/1999Inactive223284
11/29/1999Inactive223384
12/06/1999Inactive223284
12/13/1999Inactive223284
12/20/1999Inactive223184
12/27/1999Inactive223184
01/03/2000Inactive223384
01/10/2000Inactive223484
01/17/2000Inactive223484
01/24/2000Inactive223584
01/31/2000Inactive223584

These ratings, calculated for Siuniakov, Igor, 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.

Back to top

Home