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Career ratings for: Marquez, Raul

  Date of rating  

World Rank Rating +/- Age
11/30/1990#1891219875
12/31/1990#1911219775
01/31/1991#1954220375
02/28/1991#1970220475
03/31/1991#2015220275
04/30/1991#2028219975
05/31/1991#2097218373
06/30/1991#2101218673
07/31/1991#2134218673
08/31/1991#2142218973
09/30/1991#2156218873
10/31/1991#2166219073
11/30/1991Inactive220381
12/31/1991Inactive220081
01/31/1992Inactive220781
02/29/1992Inactive220881
03/31/1992Inactive220581
04/30/1992Inactive219881
05/31/1992Inactive217583
06/30/1992Inactive217783
07/31/1992Inactive218083
08/31/1992Inactive218183
09/30/1992Inactive218183
10/31/1992Inactive218683
04/30/1993Inactive219180
05/31/1993Inactive217281
06/30/1993Inactive217581
07/31/1993Inactive217481
08/31/1993Inactive217481
09/30/1993Inactive217581
10/31/1993Inactive217781
11/30/1993Inactive218884
12/31/1993Inactive218784
01/31/1994Inactive219184
02/28/1994Inactive219284
03/31/1994Inactive219976
04/30/1994Inactive218979
05/31/1994Inactive217580
06/30/1994Inactive217780
07/31/1994Inactive217780
08/31/1994Inactive217680
09/30/1994Inactive217680
10/31/1994Inactive217780
11/30/1994Inactive218981
12/31/1994Inactive218881
01/31/1995Inactive219081
02/28/1995Inactive219081
03/31/1995Inactive219286

These ratings, calculated for Marquez, Raul, 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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