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Career ratings for: Arakelov, Ilya

  Date of rating  

World Rank Rating +/- Age
11/20/2000#1816231874
11/27/2000#1795231974
12/04/2000#1799232174
12/11/2000#1792232174
12/18/2000#1795232274
12/25/2000#1801232274
01/01/2001#1798232474
01/08/2001#1789232574
01/15/2001#1795232674
01/22/2001#1796232674
01/29/2001#1790232774
02/05/2001#1776232774
02/12/2001#1587234075
02/19/2001#1583234075
02/26/2001#1597233975
03/05/2001#1618233575
03/12/2001#1616233675
03/19/2001#1621233575
03/26/2001#1619233575
04/02/2001#1610233575
04/09/2001#1627233475
04/16/2001#1633233375
04/23/2001#1597233775
04/30/2001#1603233775
05/07/2001#1601233775
05/14/2001#1597233875
05/21/2001#1597233775
05/28/2001#1591233775
06/04/2001#1591233775
06/11/2001#1597233875
06/18/2001#1610233875
06/25/2001#1598233875
07/02/2001#1569234175
07/09/2001#1421235471
07/16/2001#1434235471
07/23/2001#1426235371
07/30/2001#1437235371
08/06/2001#1440235371
08/13/2001#1620233570
08/20/2001#1629233570
08/27/2001#1646233570
09/03/2001#1652233570
09/10/2001#1657233570

These ratings, calculated for Arakelov, Ilya, 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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