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Career ratings for: Chemes, L.

  Date of rating  

World Rank Rating +/- Age
06/30/1951Inactive210281
12/31/1951Inactive209682
06/30/1956Inactive211982
12/31/1956Inactive211782
06/30/1959Inactive212181
12/31/1959Inactive212281
03/31/1960Inactive211881
03/31/1961#413214069
06/30/1961#400213968
09/30/1961#405213668
12/31/1961#378213468
03/31/1962Inactive213079
06/30/1962Inactive213077
09/30/1962Inactive213277
12/31/1962Inactive213177
06/30/1963Inactive212388
09/30/1963Inactive212288
12/31/1963Inactive211888
03/31/1966#453215672
06/30/1966#455215472
09/30/1966#471215772
12/31/1966#491215672
03/31/1967Inactive215082
06/30/1967Inactive214982
09/30/1967Inactive215082
12/31/1967Inactive214982
03/31/1969Inactive216476
06/30/1969Inactive216576
09/30/1969Inactive216476
12/31/1969Inactive216476
02/28/1970Inactive216176
04/30/1970Inactive215887
06/30/1970Inactive215987
08/31/1970Inactive216087
10/31/1970Inactive216287
12/31/1970Inactive216287
02/28/1971Inactive215887

These ratings, calculated for Chemes, L., 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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