Back to names list

Career ratings for: Saborido, Rafael

  Date of rating  

World Rank Rating +/- Age
03/31/1961#334226761
06/30/1961#319227661
09/30/1961#323227261
12/31/1961#304227061
03/31/1962#334225969
06/30/1962#318226868
09/30/1962#333226568
12/31/1962#327226368
03/31/1963Inactive225079
06/30/1963Inactive226078
09/30/1963Inactive225878
12/31/1963Inactive225578
06/30/1964Inactive225489
09/30/1964Inactive225289
12/31/1964#346227769
03/31/1965#388227269
06/30/1965#386227669
09/30/1965#382227569
12/31/1965Inactive227978
03/31/1966#325231965
06/30/1966#332232165
09/30/1966#342232365
12/31/1966#303234167
03/31/1967#352231874
06/30/1967#352232174
09/30/1967#351232074
12/31/1967Inactive233877
03/31/1968Inactive231684
06/30/1968Inactive231884
09/30/1968Inactive231484
12/31/1968Inactive233788
03/31/1969#421228968
06/30/1969#418229168
09/30/1969#417228968
12/31/1969#408229067
02/28/1970#459228767
04/30/1970Inactive229578
06/30/1970Inactive229478
08/31/1970Inactive229578
10/31/1970Inactive229578
12/31/1970Inactive229377
02/28/1971Inactive228977
04/30/1971Inactive229789
06/30/1971Inactive229789
08/31/1971Inactive229889
10/31/1971Inactive229789
12/31/1971Inactive229387
02/29/1972Inactive229887

These ratings, calculated for Saborido, Rafael, 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.

Back to top

Home