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Career ratings for: Matera, Salvatore Joseph

  Date of rating  

World Rank Rating +/- Age
02/28/1974#458231166
04/30/1974#455231266
06/30/1974#476231366
08/31/1974#480231466
10/31/1974#463231066
12/31/1974#461231066
02/28/1975#486230475
04/30/1975#293239862
06/30/1975#290239862
08/31/1975#279240461
10/31/1975#285240361
12/31/1975#284240661
02/29/1976#238242561
04/30/1976#298239570
06/30/1976#298239670
08/31/1976#235243862
10/31/1976#267243058
12/31/1976#265243458
02/28/1977#245243856
04/30/1977#288242857
06/30/1977#287242757
08/31/1977#262243955
10/31/1977#262244056
12/31/1977#258244156
02/28/1978#244244457
04/30/1978#269243057
06/30/1978#288242857
08/31/1978#280243861
10/31/1978#281243962
12/31/1978#280244062
02/28/1979#276244363
04/30/1979#299242961
06/30/1979#299242761
08/31/1979#287243164
10/31/1979#284243365
12/31/1979#276243765
01/31/1980#292243965
02/29/1980#270244465
03/31/1980#273244365
04/30/1980#320242562
05/31/1980#324242562
06/30/1980#326242762
07/31/1980#328242862
08/31/1980#309243063
09/30/1980#311243063
10/31/1980#313243164
11/30/1980#314243164
12/31/1980#325242964
01/31/1981#332242964
02/28/1981#304242964
03/31/1981#307242964
04/30/1981#335241870
05/31/1981#333241870
06/30/1981#346241970
07/31/1981#351241970
08/31/1981#336242271
09/30/1981#337242271
10/31/1981#338242472
11/30/1981#338242572
12/31/1981#332242672
01/31/1982#334242472
02/28/1982#320242772
03/31/1982#320242872
04/30/1982Inactive241879
05/31/1982Inactive241779
06/30/1982Inactive241879
07/31/1982Inactive241679
08/31/1982Inactive242481
09/30/1982Inactive242181
10/31/1982Inactive242682
11/30/1982Inactive242682
12/31/1982Inactive242982
01/31/1983Inactive242882
02/28/1983Inactive243383
03/31/1983Inactive243483

These ratings, calculated for Matera, Salvatore Joseph, 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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