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Career ratings for: Ben Menachem, Itzhak

  Date of rating  

World Rank Rating +/- Age
11/30/1989Inactive223980
12/31/1989Inactive223681
01/31/1990Inactive223481
02/28/1990Inactive224281
03/31/1990Inactive223781
04/30/1990Inactive223081
05/31/1990Inactive222781
06/30/1990Inactive223081
07/31/1990Inactive223281
08/31/1990Inactive223681
09/30/1990Inactive223581
10/31/1990Inactive223381
01/31/1992Inactive224084
02/29/1992Inactive224984
03/31/1992Inactive224784
04/30/1992Inactive223884
05/31/1992Inactive224184
06/30/1992Inactive223984
07/31/1992Inactive224284
08/31/1992Inactive224484
09/30/1992Inactive224784
10/31/1992Inactive224684
11/30/1992Inactive224586
12/31/1992Inactive224386
01/31/1993Inactive228786
02/28/1993Inactive229586
03/31/1993Inactive229286
04/30/1993Inactive228577
05/31/1993Inactive228777
06/30/1993Inactive228677
07/31/1993Inactive226281
08/31/1993Inactive228977
09/30/1993#1628232272
10/31/1993#1646232172
11/30/1993#1444234470
12/31/1993#1488234070
01/31/1994#1420234975
02/28/1994#1404235375
03/31/1994#1430234975
04/30/1994#1600233472
05/31/1994#1578233972
06/30/1994#1805231775
07/31/1994Inactive230076
08/31/1994#1687232970
09/30/1994#1709232775
10/31/1994#1725232475
11/30/1994#1496234774
12/31/1994#1560234174
01/31/1995Inactive234976
02/28/1995Inactive235376
03/31/1995Inactive235076
04/30/1995#1652233575
05/31/1995#1628233875
06/30/1995Inactive232076
07/31/1995Inactive230377
08/31/1995Inactive232280
09/30/1995Inactive232185
10/31/1995Inactive232285
11/30/1995Inactive234284
12/31/1995Inactive233984
01/31/1996Inactive234987
02/29/1996Inactive235387
03/31/1996Inactive235087
04/30/1996Inactive233586
05/31/1996Inactive233786
06/30/1996Inactive231787
07/31/1996Inactive229988
05/31/1998Inactive232585
06/30/1998Inactive230785
07/31/1998Inactive229186
08/31/1998Inactive230586

These ratings, calculated for Ben Menachem, Itzhak, 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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