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Career ratings for: Prelovszky, Laszlo

  Date of rating  

World Rank Rating +/- Age
03/31/1964#423213864
06/30/1964#419214364
09/30/1964#405214164
12/31/1964#450213964
03/31/1965#481213773
06/30/1965#481214073
09/30/1965#480214173
12/31/1965#441213773
03/31/1966#429220162
06/30/1966#429220062
09/30/1966#444220362
12/31/1966#458219962
03/31/1967#473221460
06/30/1967#473222060
09/30/1967#469222260
12/31/1967#465220460
03/31/1968#471221267
06/30/1968#480221767
09/30/1968#488221567
12/31/1968#507220267
03/31/1969Inactive221576
06/30/1969Inactive222377
09/30/1969Inactive222377
12/31/1969Inactive221176
02/28/1970Inactive220976
04/30/1970Inactive222187
06/30/1970Inactive222588
08/31/1970Inactive222788
10/31/1970Inactive222988
12/31/1970Inactive221487
02/28/1971Inactive221087

These ratings, calculated for Prelovszky, Laszlo, 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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