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Career ratings for: Curtis, Ry

  Date of rating  

World Rank Rating +/- Age
01/31/1996#3155223870
02/29/1996#3159223970
03/31/1996#3174223870
04/30/1996#3188223670
05/31/1996#3184223770
06/30/1996#3075224370
07/31/1996#3086224270
08/31/1996#3092224370
09/30/1996#3140224370
10/31/1996#3137224470
11/30/1996#3797219172
12/31/1996#3131224670
01/31/1997#3734219867
02/28/1997#3749219967
03/31/1997#3784219867
04/30/1997#3812219767
05/31/1997#3823219667
06/30/1997#3709220467
07/31/1997#3720220467
08/31/1997#3732220467
09/30/1997#3745220367
10/31/1997#3804220467
11/30/1997#4277216967
12/31/1997#3415222863
01/31/1998#3495221568
02/28/1998#3492221668
03/31/1998#3543221768
04/30/1998#3574221768
05/31/1998#3570221868
06/30/1998#3463222468
07/31/1998#3479222468
08/31/1998#3520222368
09/30/1998#3526222268
10/31/1998#3536222268
11/30/1998#4156218668
12/31/1998#3611221871
01/11/1999Inactive221871
01/18/1999Inactive221871
01/25/1999Inactive221971
02/01/1999Inactive220677
02/08/1999Inactive220677
02/15/1999Inactive220677
02/22/1999Inactive220677
03/01/1999Inactive220577
03/08/1999Inactive220777
03/15/1999Inactive220677
03/22/1999Inactive220777
03/29/1999Inactive220777
04/05/1999Inactive220877
04/12/1999Inactive220877
04/19/1999Inactive220977
04/26/1999Inactive220977
05/03/1999Inactive220877
05/10/1999Inactive220777
05/17/1999Inactive220777
05/24/1999Inactive220677
05/31/1999Inactive220677
06/07/1999Inactive220677
06/14/1999Inactive220677
06/21/1999Inactive220677
06/28/1999Inactive220677
07/05/1999Inactive221577
07/12/1999Inactive221577
07/19/1999Inactive221677
07/26/1999Inactive221677
08/02/1999Inactive221677
08/09/1999Inactive221877
08/16/1999Inactive221577
08/23/1999Inactive221677
08/30/1999Inactive221677
09/06/1999Inactive221677
09/13/1999Inactive221577
09/20/1999Inactive221677
09/27/1999Inactive221677
10/04/1999Inactive221677
10/11/1999Inactive221677
10/18/1999Inactive221677
10/25/1999Inactive221677
11/01/1999Inactive221877
11/08/1999Inactive221777
11/15/1999Inactive221877
11/22/1999Inactive221777
11/29/1999Inactive221877
12/06/1999Inactive218077
12/13/1999Inactive218077
12/20/1999Inactive217977
12/27/1999Inactive217977
01/03/2000Inactive221681
01/10/2000Inactive221781
01/17/2000Inactive221881
01/24/2000Inactive221881
01/31/2000Inactive221981
02/07/2000Inactive220788
02/14/2000Inactive220688
02/21/2000Inactive220788
02/28/2000Inactive220888
03/06/2000Inactive220888
03/13/2000Inactive220788
03/20/2000Inactive220788
03/27/2000Inactive220688
04/03/2000Inactive220588
04/10/2000Inactive220488
04/17/2000Inactive220488
04/24/2000Inactive220388
05/01/2000Inactive220388
05/08/2000Inactive220288
05/15/2000Inactive220388
05/22/2000Inactive220288
05/29/2000Inactive220288
06/05/2000Inactive220288
06/12/2000Inactive220388
06/19/2000Inactive220388
06/26/2000Inactive220288
07/03/2000Inactive220388
07/10/2000Inactive221088
07/17/2000Inactive221188
07/24/2000Inactive221188
07/31/2000Inactive221188
08/07/2000Inactive221088
08/14/2000Inactive221088
08/21/2000Inactive221088
08/28/2000Inactive221188
09/04/2000Inactive221088
09/11/2000Inactive221188
09/18/2000Inactive221188
09/25/2000Inactive221188
10/02/2000Inactive221088
10/09/2000Inactive221088
10/16/2000Inactive220988
10/23/2000Inactive220988
10/30/2000Inactive220888
11/06/2000Inactive221088
11/13/2000Inactive221088
11/20/2000Inactive221288
11/27/2000Inactive221288
12/04/2000Inactive221488
12/11/2000Inactive217588
12/18/2000Inactive217588
12/25/2000Inactive217688
01/01/2001Inactive217788

These ratings, calculated for Curtis, Ry, 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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