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Career ratings for: Ost Hansen, Jacob

  Date of rating  

World Rank Rating +/- Age
02/28/1973Inactive235679
04/30/1973Inactive235779
06/30/1973Inactive235279
08/31/1973Inactive235179
10/31/1973Inactive234879
12/31/1973Inactive235079
02/28/1975Inactive235683
04/30/1975Inactive235883
06/30/1975Inactive238479
08/31/1975Inactive238479
10/31/1975Inactive235083
12/31/1975Inactive239079
02/29/1976Inactive235977
04/30/1976Inactive236277
06/30/1976#313238675
08/31/1976#313238875
10/31/1976Inactive236077
12/31/1976#325239675
02/28/1977Inactive236488
04/30/1977Inactive236788
06/30/1977Inactive238886
08/31/1977Inactive239086
10/31/1977Inactive235988
12/31/1977Inactive239286
08/31/1979Inactive239485
10/31/1979Inactive236986
12/31/1979Inactive240285
01/31/1980#434238471
02/29/1980#415238073
03/31/1980#425237973
04/30/1980#415238473
05/31/1980#417238473
06/30/1980#384240273
07/31/1980#388240273
08/31/1980#408238972
09/30/1980#413238972
10/31/1980#465236872
11/30/1980#469236872
12/31/1980#408239072
01/31/1981Inactive237881
02/28/1981Inactive237084
03/31/1981Inactive236984
04/30/1981Inactive237284
05/31/1981Inactive237184
06/30/1981Inactive238983
07/31/1981#409239866
08/31/1981#436238866
09/30/1981#436238766
10/31/1981#473237266
11/30/1981#474237366
12/31/1981#424239266
01/31/1982#378240960
02/28/1982#411239561
03/31/1982#413239461
04/30/1982#407239861
05/31/1982#409239661
06/30/1982#362241660
07/31/1982#364241558
08/31/1982#395241058
09/30/1982#392240958
10/31/1982#413240756
11/30/1982#412240756
12/31/1982#373242056
01/31/1983#348242457
02/28/1983#373241657
03/31/1983#378241657
04/30/1983#372242057
05/31/1983#376241857
06/30/1983#260246656
07/31/1983#259246658
08/31/1983#271245958
09/30/1983#284246258
10/31/1983#331244256
11/30/1983#331244456
12/31/1983#313244956
01/31/1984#300245355
02/29/1984#317244455
03/31/1984#317244655
04/30/1984#324245055
05/31/1984#308245755
06/30/1984#304245955
07/31/1984#305246056
08/31/1984#327245756
09/30/1984#323245756
10/31/1984#321245858
11/30/1984#327245758
12/31/1984#308246658
01/31/1985#318246160
02/28/1985#345245461
03/31/1985#345245361
04/30/1985#332245361
05/31/1985#318245860
06/30/1985#320245961
07/31/1985#404243558
08/31/1985#411243258
09/30/1985#412243358
10/31/1985#437242559
11/30/1985#431242959
12/31/1985#415243359
01/31/1986#447242860
02/28/1986#468241860
03/31/1986#470242160
04/30/1986#465242160
05/31/1986#449242660
06/30/1986#449242660
07/31/1986#408243865
08/31/1986#413243465
09/30/1986#408243565
10/31/1986#438242466
11/30/1986#438242766
12/31/1986#428243366
01/31/1987#447242667
02/28/1987#461241967
03/31/1987#468241967
04/30/1987#468241867
05/31/1987#442242267
06/30/1987#447242567
07/31/1987#408243374
08/31/1987#420243174
09/30/1987#423243073
10/31/1987#469242175
11/30/1987#463242275
12/31/1987#446242875
01/31/1988Inactive242576
02/29/1988Inactive242176
03/31/1988Inactive242276
04/30/1988Inactive242476
05/31/1988Inactive242876
06/30/1988Inactive242976
07/31/1988Inactive243984
08/31/1988Inactive243684
09/30/1988Inactive243784
10/31/1988Inactive242585
11/30/1988Inactive242885
12/31/1988Inactive243685
01/31/1989Inactive243187
02/28/1989Inactive242487
03/31/1989Inactive242587
04/30/1989Inactive242687
05/31/1989Inactive243087
06/30/1989Inactive243087
10/31/1989Inactive243382
11/30/1989Inactive243582
12/31/1989Inactive244482
01/31/1990#860238867
02/28/1990#880238167
03/31/1990#881238167
04/30/1990#862238466
05/31/1990#759239765
06/30/1990#832238766
07/31/1990#734240365
08/31/1990#749240465
09/30/1990#761240465
10/31/1990#862238871
11/30/1990#856238771
12/31/1990#824239371
01/31/1991Inactive238476
02/28/1991Inactive237976
03/31/1991Inactive237976
04/30/1991#904238475
05/31/1991#807240274
06/30/1991#892239075
07/31/1991#794240674
08/31/1991#798240774
09/30/1991#804240674
10/31/1991Inactive239081
11/30/1991Inactive239181
12/31/1991Inactive239681
01/31/1992Inactive238887
02/29/1992Inactive238487
03/31/1992Inactive238487
04/30/1992Inactive238486
05/31/1992Inactive240184
06/30/1992Inactive238786
07/31/1992Inactive240585
08/31/1992Inactive240585
09/30/1992Inactive240585
01/31/1997Inactive237089
02/28/1997Inactive236789
03/31/1997Inactive236789
04/30/1997Inactive237089
05/31/1997Inactive238389
06/30/1997Inactive237289
07/31/1997Inactive238489
08/31/1997Inactive238289
09/30/1997Inactive238189
10/31/1997Inactive237089
11/30/1997Inactive237089
12/31/1997Inactive237389
01/31/1998Inactive231183
02/28/1998Inactive230983
03/31/1998Inactive231183
04/30/1998Inactive231583
05/31/1998Inactive232983
06/30/1998Inactive231783
07/31/1998Inactive232783
08/31/1998Inactive232583
09/30/1998Inactive232383
10/31/1998Inactive231283
11/30/1998Inactive231183
12/31/1998Inactive231483
01/11/1999Inactive231583
01/18/1999Inactive231583
01/25/1999Inactive231583

These ratings, calculated for Ost Hansen, Jacob, 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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