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Career ratings for: Kuijpers, Franciscus Antonius

  Date of rating  

World Rank Rating +/- Age
06/30/1961#332225775
09/30/1961#336225475
06/30/1962Inactive231681
09/30/1962Inactive224886
03/31/1963#307231057
06/30/1963#237236457
09/30/1963#260233656
12/31/1963#288231356
03/31/1964#275233257
06/30/1964#218237557
09/30/1964#243235357
12/31/1964#274234054
03/31/1965#244238054
06/30/1965#208240554
09/30/1965#223239154
12/31/1965#243237356
03/31/1966#225239253
06/30/1966#199240853
09/30/1966#216240153
12/31/1966#232238954
03/31/1967#202241352
06/30/1967#185242352
09/30/1967#191241752
12/31/1967#206241152
03/31/1968#200241157
06/30/1968#168243256
09/30/1968#210240453
12/31/1968#224240153
03/31/1969#268238554
06/30/1969#267238954
09/30/1969#257239256
12/31/1969#256239356
02/28/1970#209242653
04/30/1970#176244154
06/30/1970#172244154
08/31/1970#174244354
10/31/1970#191243355
12/31/1970#210242555
02/28/1971#251240154
04/30/1971#228241155
06/30/1971#232241355
08/31/1971#234241255
10/31/1971#219242055
12/31/1971#217241255
02/29/1972#214243556
04/30/1972#191244557
06/30/1972#190244657
08/31/1972#214243456
10/31/1972#203243757
12/31/1972#216243257
02/28/1973#200244561
04/30/1973#189245362
06/30/1973#184245662
08/31/1973#209244361
10/31/1973#196244862
12/31/1973#200244462
02/28/1974#186245059
04/30/1974#171245659
06/30/1974#135248257
08/31/1974#147247457
10/31/1974#142247357
12/31/1974#150247157
02/28/1975#223243555
04/30/1975#234243255
06/30/1975#226243355
08/31/1975#239242855
10/31/1975#240243055
12/31/1975#237243255
02/29/1976#220243657
04/30/1976#226243657
06/30/1976#224243958
08/31/1976#241243658
10/31/1976#239244158
12/31/1976#248244458
02/28/1977#219244964
04/30/1977#236245064
06/30/1977#229245065
08/31/1977#239244765
10/31/1977#244244765
12/31/1977#241244765
02/28/1978#250244061
04/30/1978#254243861
06/30/1978#267243861
08/31/1978#283243661
10/31/1978#286243661
12/31/1978#285243761
02/28/1979#281244069
04/30/1979#280243969
06/30/1979#269243869
08/31/1979#277243369
10/31/1979#278243469
12/31/1979#272243869
01/31/1980#342242361
02/29/1980#323242163
03/31/1980#328242063
04/30/1980#324242363
05/31/1980#328242363
06/30/1980#328242763
07/31/1980#330242763
08/31/1980#322242463
09/30/1980#324242463
10/31/1980#326242463
11/30/1980#328242463
12/31/1980#335242363
01/31/1981#342242469
02/28/1981#332241772
03/31/1981#339241672
04/30/1981#341241672
05/31/1981#338241672
06/30/1981#347241972
07/31/1981#352241872
08/31/1981#356241671
09/30/1981#357241671
10/31/1981#357241771
11/30/1981#356241871
12/31/1981#346242071
01/31/1982Inactive241979
02/28/1982Inactive241582
03/31/1982Inactive241582
04/30/1982Inactive241782
05/31/1982Inactive241582
06/30/1982Inactive241882
07/31/1982Inactive241582
08/31/1982Inactive241781
09/30/1982Inactive241581
10/31/1982Inactive241981
11/30/1982Inactive241981
12/31/1982Inactive242381
01/31/1983#409240573
02/28/1983#417240274
03/31/1983#422240274
04/30/1983#412240574
05/31/1983#416240374
06/30/1983#414240674
07/31/1983#415240774
08/31/1983#419240673
09/30/1983#440240973
10/31/1983#443240773
11/30/1983#447240973
12/31/1983#442240873
01/31/1984Inactive240783
02/29/1984Inactive240184
03/31/1984Inactive240284
04/30/1984Inactive240684
05/31/1984Inactive240784
06/30/1984Inactive241084
07/31/1984Inactive241284
08/31/1984Inactive241284
09/30/1984Inactive241384
10/31/1984Inactive241584
11/30/1984Inactive241484
12/31/1984Inactive241684

These ratings, calculated for Kuijpers, Franciscus Antonius, 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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