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Career ratings for: D'Israel, Davy M

  Date of rating  

World Rank Rating +/- Age
01/31/1993#2921211775
02/28/1993#2922211675
03/31/1993#2917212075
04/30/1993#2981211873
05/31/1993#3016211473
06/30/1993#2991211573
07/31/1993#2984212774
08/31/1993#3065212874
09/30/1993#3089212974
10/31/1993#3153212674
11/30/1993#3186212574
12/31/1993#3188212974
01/31/1994Inactive211086
02/28/1994Inactive210986
03/31/1994Inactive211186
04/30/1994Inactive210883
05/31/1994Inactive211083
06/30/1994Inactive211083
07/31/1994Inactive212384
08/31/1994Inactive212284
09/30/1994Inactive212284
10/31/1994Inactive211784
11/30/1994Inactive211984
12/31/1994Inactive212184
04/30/1997Inactive219479
05/31/1997Inactive216381
06/30/1997Inactive216281
07/31/1997Inactive218481
08/31/1997Inactive218381
09/30/1997Inactive218081
10/31/1997Inactive214877
11/30/1997Inactive214877
12/31/1997Inactive215077
01/31/1998#4052217769
02/28/1998#4027218069
03/31/1998#3989218569
04/30/1998#4131217771
05/31/1998#4319216271
06/30/1998#4364216171
07/31/1998#4267217071
08/31/1998#4342216871
09/30/1998#4359216968
10/31/1998#4539216169
11/30/1998#4582216069
12/31/1998#4611215969
01/11/1999#4301215969
01/18/1999#4308215969
01/25/1999#4322216069
02/01/1999#3617216873
02/08/1999#3599217071
02/15/1999#3618217071
02/22/1999#3647217071
03/01/1999#3611217171
03/08/1999#3619217271
03/15/1999#3621217171
03/22/1999#3639217171
03/29/1999#3648217171
04/05/1999#3633217471
04/12/1999#3646217471
04/19/1999#3652217471
04/26/1999#3665217471
05/03/1999#3701217172
05/10/1999#3702217072
05/17/1999#3713217072
05/24/1999#3726217072
05/31/1999#3746217172
06/07/1999#3855216072
06/14/1999#3864216072
06/21/1999#3876215972
06/28/1999#3883216072
07/05/1999#3877215972
07/12/1999#3889215972
07/19/1999#3896215972
07/26/1999#3930216072
08/02/1999#3811216772
08/09/1999#3821216872
08/16/1999#3824216872
08/23/1999#3868216772
08/30/1999#3867216772
09/06/1999#3797216872
09/13/1999#3818216772
09/20/1999#3824216872
09/27/1999#3834216872
10/04/1999#3796216574
10/11/1999#3814216474
10/18/1999#3861216474
10/25/1999#3875216474
11/01/1999#3749216470
11/08/1999#3756216470
11/15/1999#3777216470
11/22/1999#3796216470
11/29/1999#3822216470
12/06/1999#3748216570
12/13/1999#3774216570
12/20/1999#3779216470
12/27/1999#3794216470
01/03/2000#3782216670
01/10/2000#3793216670
01/17/2000#3822216670
01/24/2000#3834216670
01/31/2000#3839216770
02/07/2000#3365217573
02/14/2000#3375217474
02/21/2000#3400217574
02/28/2000#3407217674
03/06/2000#3381217674
03/13/2000#3403217674
03/20/2000#3409217674
03/27/2000#3410217674
04/03/2000#3412217674
04/10/2000#3383217774
04/17/2000#3409217774
04/24/2000#3423217674
05/01/2000#3433217674
05/08/2000#3449217375
05/15/2000#3460217575
05/22/2000#3467217475
05/29/2000#3482217375
06/05/2000#3491217375
06/12/2000#3574216475
06/19/2000#3611216375
06/26/2000#3614216375
07/03/2000#3620216375
07/10/2000#3606216375
07/17/2000#3614216375
07/24/2000#3629216375
07/31/2000#3654216375
08/07/2000#3557217075
08/14/2000#3559217075
08/21/2000#3572217175
08/28/2000#3585217175
09/04/2000#3609217075
09/11/2000#3592217075
09/18/2000#3588217175
09/25/2000#3603217075
10/02/2000#3611216975
10/09/2000Inactive216776
10/16/2000Inactive216876
10/23/2000Inactive216876
10/30/2000Inactive216876
11/06/2000Inactive215880
11/13/2000Inactive215780
11/20/2000Inactive215780
11/27/2000Inactive215780
12/04/2000Inactive215980
12/11/2000Inactive215980
12/18/2000Inactive215980
12/25/2000Inactive215980
01/01/2001Inactive215980
01/08/2001Inactive216080
01/15/2001Inactive216180
01/22/2001Inactive216280
01/29/2001Inactive216180
02/05/2001Inactive216180
02/12/2001Inactive217183
02/19/2001Inactive217084
02/26/2001Inactive216984
03/05/2001Inactive216984
03/12/2001Inactive217084
03/19/2001Inactive217084
03/26/2001Inactive217084
04/02/2001Inactive217084
04/09/2001Inactive217084
04/16/2001Inactive217184
04/23/2001Inactive217084
04/30/2001Inactive216984
05/07/2001Inactive217184
05/14/2001Inactive217085
05/21/2001Inactive216885
05/28/2001Inactive216885
06/04/2001Inactive216885
06/11/2001Inactive216685
06/18/2001Inactive215685
06/25/2001Inactive215885
07/02/2001Inactive215885
07/09/2001Inactive215885
07/16/2001Inactive215785
07/23/2001Inactive215885
07/30/2001Inactive215885
08/06/2001Inactive215885
08/13/2001Inactive216585
08/20/2001Inactive216585
08/27/2001Inactive216585
09/03/2001Inactive216585
09/10/2001Inactive216585

These ratings, calculated for D'Israel, Davy M, 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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