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Career ratings for: Henttinen, Markku IO

  Date of rating  

World Rank Rating +/- Age
07/31/1981Inactive223979
08/31/1981Inactive223979
09/30/1981Inactive223679
10/31/1981Inactive223779
11/30/1981Inactive224179
12/31/1981#712224774
01/31/1982Inactive222977
02/28/1982Inactive227481
03/31/1982Inactive227481
04/30/1982Inactive234077
05/31/1982Inactive233877
06/30/1982Inactive234277
12/31/1982Inactive224384
01/31/1983Inactive222588
04/30/1983Inactive234088
05/31/1983Inactive233988
06/30/1983Inactive234288
01/31/1990Inactive224178
02/28/1990Inactive227178
03/31/1990#1620224775
04/30/1990#1452228775
05/31/1990#1455228475
06/30/1990#1463228675
07/31/1990#1748222275
08/31/1990#1740222675
09/30/1990Inactive224578
10/31/1990#1786222675
11/30/1990#1806222575
12/31/1990#1807222875
01/31/1991Inactive223189
02/28/1991Inactive226289
03/31/1991Inactive223985
04/30/1991Inactive228085
05/31/1991Inactive228385
06/30/1991Inactive228285
07/31/1991Inactive221885
08/31/1991Inactive222285
09/30/1991Inactive224189
10/31/1991Inactive222185
11/30/1991Inactive222385
12/31/1991Inactive222485
01/31/1993Inactive225086
02/28/1993Inactive227886
03/31/1993Inactive225585
04/30/1993Inactive229085
05/31/1993Inactive228985
06/30/1993Inactive229185
07/31/1993Inactive223485
08/31/1993Inactive223685
09/30/1993Inactive225686
10/31/1993Inactive223785
11/30/1993Inactive223985
12/31/1993Inactive224185
01/31/1994Inactive225488
02/28/1994Inactive228188
03/31/1994Inactive225887
04/30/1994Inactive229087
05/31/1994Inactive229487
06/30/1994Inactive229587
07/31/1994Inactive224187
08/31/1994Inactive224387
09/30/1994Inactive226088
10/31/1994Inactive224187
11/30/1994Inactive224587
12/31/1994Inactive223681
01/31/1995Inactive224782
02/28/1995Inactive227282
03/31/1995Inactive225182
04/30/1995Inactive228182
05/31/1995Inactive228282
06/30/1995Inactive228482
07/31/1995Inactive223582
08/31/1995Inactive223882
09/30/1995Inactive225582
10/31/1995Inactive224282
11/30/1995Inactive224282
12/31/1995Inactive223680
01/31/1997Inactive229079
02/28/1997Inactive231279
03/31/1997Inactive229379
04/30/1997Inactive231879
05/31/1997Inactive231779
06/30/1997Inactive231979
07/31/1997Inactive227779
08/31/1997Inactive227879
09/30/1997Inactive229179
10/31/1997Inactive227979
11/30/1997Inactive227979
12/31/1997Inactive227179

These ratings, calculated for Henttinen, Markku IO, 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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