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Career ratings for: Hansen, Jacob Ost

  Date of rating  

World Rank Rating +/- Age
02/28/1974Inactive233376
04/30/1974Inactive233376
06/30/1974Inactive232976
08/31/1974Inactive233176
10/31/1974Inactive232976
12/31/1974Inactive233276
02/28/1975Inactive232787
04/30/1975Inactive232787
06/30/1975Inactive232387
08/31/1975Inactive232587
10/31/1975Inactive232687
12/31/1975Inactive233387
08/31/1977Inactive235285
10/31/1977Inactive235185
01/31/1982Inactive230289
02/28/1982Inactive230089
03/31/1982Inactive229989
04/30/1982Inactive230189
05/31/1982Inactive229989
06/30/1982Inactive229789
07/31/1982Inactive229689
08/31/1982Inactive233489
09/30/1982Inactive233189
10/31/1982Inactive233589
11/30/1982Inactive233489
12/31/1982Inactive230989
01/31/1985#619236970
02/28/1985#618236670
03/31/1985#619236570
04/30/1985#605236670
05/31/1985#604236470
06/30/1985#614236370
07/31/1985#633236270
08/31/1985#561238670
09/30/1985#558238670
10/31/1985#561238870
11/30/1985#567238870
12/31/1985#615237070
01/31/1986Inactive236480
02/28/1986Inactive235880
03/31/1986Inactive236080
04/30/1986Inactive236080
05/31/1986Inactive236080
06/30/1986Inactive235780
07/31/1986Inactive235880
08/31/1986Inactive238080
09/30/1986Inactive238080
10/31/1986Inactive238180
11/30/1986Inactive238080
12/31/1986Inactive236480

These ratings, calculated for Hansen, Jacob Ost, 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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