Back to names list

Career ratings for: Bailey, Doug

  Date of rating  

World Rank Rating +/- Age
03/31/1989#1649212664
04/30/1989#1678212464
05/31/1989#1696212364
06/30/1989#1718212564
07/31/1989#1729212664
08/31/1989#1742212664
09/30/1989#1739212264
10/31/1989#1772212164
11/30/1989#1771212264
12/31/1989#1770212464
01/31/1990#1776220665
02/28/1990#1759220765
03/31/1990#1906211973
04/30/1990#1924211873
05/31/1990#1940211773
06/30/1990#1941211773
07/31/1990#1970211773
08/31/1990#1971211873
09/30/1990#2002211673
10/31/1990#2027211473
11/30/1990#2063211373
12/31/1990#2072211573
01/31/1991#1979219674
02/28/1991#1991219874
03/31/1991Inactive211183
04/30/1991Inactive211183
05/31/1991Inactive211283
06/30/1991Inactive211383
07/31/1991Inactive211283
08/31/1991Inactive211383
09/30/1991Inactive211183
10/31/1991Inactive211083
11/30/1991Inactive210983
12/31/1991Inactive210883
01/31/1992#2284220671
02/29/1992#2264220971
03/31/1992#2494213774
04/30/1992#2538213374
05/31/1992#2546213374
06/30/1992#2599213674
07/31/1992#2609213774
08/31/1992#2656213574
09/30/1992#2697213574
10/31/1992#2711213474
11/30/1992#2720213174
12/31/1992#2719213574
01/31/1993Inactive220081
02/28/1993Inactive220381
03/31/1993Inactive213184
04/30/1993Inactive212984
05/31/1993Inactive212784
06/30/1993Inactive213084
07/31/1993Inactive213084
08/31/1993Inactive212984
09/30/1993Inactive212884
10/31/1993Inactive212784
11/30/1993Inactive212784
12/31/1993Inactive212884

These ratings, calculated for Bailey, Doug, 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