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Career ratings for: Koshnitsky, Ngan Phan

  Date of rating  

World Rank Rating +/- Age
06/30/1995Inactive216381
07/31/1995Inactive216481
08/31/1995Inactive216481
09/30/1995Inactive216781
10/31/1995Inactive217281
11/30/1995Inactive217081
12/31/1995Inactive217481
09/30/1996Inactive217984
10/31/1996Inactive218184
11/30/1996Inactive218084
12/31/1996Inactive218584
01/31/1997Inactive217884
02/28/1997Inactive217684
03/31/1997Inactive217284
04/30/1997Inactive217184
05/31/1997Inactive217284
06/30/1997Inactive215784
07/31/1997Inactive215984
08/31/1997Inactive215684
04/30/1998Inactive214187
05/31/1998Inactive214287
06/30/1998Inactive213086
07/31/1998Inactive213186
08/31/1998Inactive212886
09/30/1998#4049219073
10/31/1998#4080219173
11/30/1998#4112219073
12/31/1998#4080219373
01/11/1999#3792219373
01/18/1999#3799219373
01/25/1999#3809219373
02/01/1999#3378219073
02/08/1999#3382219073
02/15/1999#3396219073
02/22/1999#3410219173
03/01/1999#3463218673
03/08/1999#3471218773
03/15/1999#3472218673
03/22/1999#3470218773
03/29/1999#3477218773
04/05/1999#3504218673
04/12/1999#3515218673
04/19/1999#3521218673
04/26/1999#3533218673
05/03/1999#3692217175
05/10/1999#3693217175
05/17/1999#3706217175
05/24/1999#3739216975
05/31/1999#3760217075
06/07/1999#3742217075
06/14/1999#3749217175
06/21/1999#3761217075
06/28/1999#3760217175
07/05/1999#3869216075
07/12/1999#3870216175
07/19/1999#3873216175
07/26/1999#3905216275
08/02/1999#3854216375
08/09/1999#3862216475
08/16/1999#3896216275
08/23/1999#3909216375
08/30/1999#3927216275
09/06/1999#3868216075
09/13/1999#3891216075
09/20/1999#3902216175
09/27/1999#3916216175
10/04/1999Inactive218484
10/11/1999Inactive218484
10/18/1999Inactive218484
10/25/1999Inactive218484
11/01/1999Inactive218684
11/08/1999Inactive218684
11/15/1999Inactive218684
11/22/1999Inactive218684
11/29/1999Inactive218784
12/06/1999Inactive218684
12/13/1999Inactive218784
12/20/1999Inactive218684
12/27/1999Inactive218684
01/03/2000Inactive219184
01/10/2000Inactive219284
01/17/2000Inactive219284
01/24/2000Inactive219384
01/31/2000Inactive219384
02/07/2000Inactive219084
02/14/2000Inactive219084
02/21/2000Inactive219184
02/28/2000Inactive219284
03/06/2000Inactive218884
03/13/2000Inactive218784
03/20/2000Inactive218784
03/27/2000Inactive218684
04/03/2000Inactive218584
04/10/2000Inactive218284
04/17/2000Inactive218284
04/24/2000Inactive218184
05/01/2000Inactive218184
05/08/2000Inactive216585
05/15/2000Inactive216685
05/22/2000Inactive216585
05/29/2000Inactive216585
06/05/2000Inactive216585
06/12/2000Inactive216785
06/19/2000Inactive216785
06/26/2000Inactive216785
07/03/2000Inactive216785
07/10/2000Inactive215585
07/17/2000Inactive215685
07/24/2000Inactive215685
07/31/2000Inactive215685
08/07/2000Inactive215685
08/14/2000Inactive215785
08/21/2000Inactive215785
08/28/2000Inactive215785
09/04/2000Inactive215785
09/11/2000Inactive215585
09/18/2000Inactive215585
09/25/2000Inactive215685
10/02/2000Inactive215485

These ratings, calculated for Koshnitsky, Ngan Phan, 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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