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Career ratings for: Keene, Raymond

  Date of rating  

World Rank Rating +/- Age
12/31/1966#367229566
03/31/1967#387229267
06/30/1967#397229367
09/30/1967#392229167
12/31/1967#366230666
03/31/1968#325233763
06/30/1968#317234262
09/30/1968#323234361
12/31/1968#186242259
03/31/1969#204242860
06/30/1969#203243060
09/30/1969#199242759
12/31/1969#195243066
02/28/1970#204242866
04/30/1970#169244664
06/30/1970#167244564
08/31/1970#175244262
10/31/1970#142246657
12/31/1970#158245856
02/28/1971#155245554
04/30/1971#138247054
06/30/1971#138247154
08/31/1971#129247554
10/31/1971#120248553
12/31/1971#134246951
02/29/1972#168246049
04/30/1972#169246149
06/30/1972#174245849
08/31/1972#168246249
10/31/1972#171245549
12/31/1972#182244950
02/28/1973#137248249
04/30/1973#133248349
06/30/1973#127249149
08/31/1973#134248449
10/31/1973#140248250
12/31/1973#133248549
02/28/1974#127249249
04/30/1974#118250349
06/30/1974#118250349
08/31/1974#114250949
10/31/1974#114250449
12/31/1974#117249850
02/28/1975#132249349
04/30/1975#136249049
06/30/1975#143248449
08/31/1975#140248849
10/31/1975#139248849
12/31/1975#154248349
02/29/1976#132249250
04/30/1976#131249350
06/30/1976#138248950
08/31/1976#159248650
10/31/1976#167248150
12/31/1976#160249150
02/28/1977#148249752
04/30/1977#149250350
06/30/1977#152249950
08/31/1977#146250650
10/31/1977#146250651
12/31/1977#155250052
02/28/1978#145250552
04/30/1978#136251152
06/30/1978#145250852
08/31/1978#133251652
10/31/1978#150250652
12/31/1978#169249152
02/28/1979#172249352
04/30/1979#180248953
06/30/1979#179248653
08/31/1979#186247953
10/31/1979#166249353
12/31/1979#172249454
01/31/1980#167250453
02/29/1980#169249753
03/31/1980#160250153
04/30/1980#146251453
05/31/1980#145251553
06/30/1980#144251753
07/31/1980#129252652
08/31/1980#129252352
09/30/1980#131252352
10/31/1980#124253052
11/30/1980#130252252
12/31/1980#130251953
01/31/1981#131252253
02/28/1981#132251353
03/31/1981#149250652
04/30/1981#121252152
05/31/1981#123252052
06/30/1981#126252352
07/31/1981#126252351
08/31/1981#129252151
09/30/1981#125252151
10/31/1981#123252652
11/30/1981#123252952
12/31/1981#122253052
01/31/1982#132252152
02/28/1982#118253150
03/31/1982#118253351
04/30/1982#115253751
05/31/1982#113253551
06/30/1982#113253751
07/31/1982#108253751
08/31/1982#130252751
09/30/1982#128252551
10/31/1982#126253151
11/30/1982#122253351
12/31/1982#120253651
01/31/1983#122253251
02/28/1983#126253152
03/31/1983#122253253
04/30/1983#145252253
05/31/1983#153251852
06/30/1983#167250952
07/31/1983#163250952
08/31/1983#158251252
09/30/1983#165251652
10/31/1983#160251552
11/30/1983#155251852
12/31/1983#154251652
01/31/1984#158251352
02/29/1984#162250853
03/31/1984#167251153
04/30/1984#189250654
05/31/1984#191250655
06/30/1984#180251356
07/31/1984#176251457
08/31/1984#170251957
09/30/1984#173251957
10/31/1984#168252257
11/30/1984#166252357
12/31/1984#165252457
01/31/1985#173252157
02/28/1985#176251858
03/31/1985#180251859
04/30/1985#194250960
05/31/1985#195250761
06/30/1985#186251362
07/31/1985#189251563
08/31/1985#176251963
09/30/1985#180252063
10/31/1985#180252363
11/30/1985#173252763
12/31/1985#173252663
01/31/1986#183252464
02/28/1986#189251765
03/31/1986#190252065
04/30/1986#199251067
05/31/1986#203251069
06/30/1986Inactive251470
07/31/1986Inactive251871
08/31/1986Inactive252072
09/30/1986Inactive252172
10/31/1986Inactive252272
11/30/1986Inactive252472
12/31/1986Inactive252672
01/31/1987Inactive252272
02/28/1987Inactive251874
03/31/1987Inactive251874
04/30/1987Inactive250876
05/31/1987Inactive250678
06/30/1987Inactive251380
07/31/1987Inactive251381
08/31/1987Inactive251782
09/30/1987Inactive251782
10/31/1987Inactive251882
11/30/1987Inactive252082
12/31/1987Inactive252182
01/31/1988Inactive252183
02/29/1988Inactive251984
03/31/1988Inactive252085
04/30/1988Inactive251487
05/31/1988Inactive251189

These ratings, calculated for Keene, Raymond, 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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