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Career ratings for: Ubezio, Marco

  Date of rating  

World Rank Rating +/- Age
01/31/1998#4199216575
02/28/1998#4172216875
03/31/1998#4126217475
04/30/1998#4162217475
05/31/1998#4167217475
06/30/1998#4217217375
07/31/1998Inactive219178
08/31/1998Inactive219078
09/30/1998Inactive218778
10/31/1998Inactive218678
11/30/1998Inactive218678
12/31/1998Inactive218878
01/11/1999Inactive218878
01/18/1999Inactive218878
01/25/1999Inactive218878
02/01/1999Inactive215786
02/08/1999Inactive215786
02/15/1999Inactive215786
02/22/1999Inactive213977
03/01/1999Inactive214077
03/08/1999Inactive214177
03/15/1999Inactive214177
03/22/1999Inactive214077
03/29/1999Inactive214177
04/05/1999Inactive214277
04/12/1999Inactive214277
04/19/1999Inactive214377
04/26/1999Inactive214277
05/03/1999Inactive214377
05/10/1999Inactive214277
05/17/1999Inactive214277
05/24/1999Inactive214277
05/31/1999Inactive214277
06/07/1999Inactive214277
06/14/1999Inactive214277
06/21/1999Inactive214277
06/28/1999Inactive214277
07/05/1999Inactive214277
07/12/1999Inactive214277
07/19/1999Inactive214277
07/26/1999Inactive214277
08/02/1999Inactive215478
08/09/1999Inactive215578
08/16/1999Inactive215378
08/23/1999Inactive215478
08/30/1999Inactive215378
09/06/1999#3317221075
09/13/1999#3329220975
09/20/1999#3335221075
09/27/1999#3342221075
10/04/1999#3299220975
10/11/1999#3318220975
10/18/1999#3353220975
10/25/1999#3357220975
11/01/1999#3254220975
11/08/1999#3258220875
11/15/1999#3273220975
11/22/1999#3284220875
11/29/1999#3380220173
12/06/1999#3327220273
12/13/1999#3338220273
12/20/1999#3343220173
12/27/1999#3356220273
01/03/2000#3320220673
01/10/2000#3329220673
01/17/2000#3344220773
01/24/2000#3354220773
01/31/2000#3356220873
02/07/2000#3317218174
02/14/2000#3315218174
02/21/2000#3343218174
02/28/2000Inactive216077
03/06/2000Inactive216277
03/13/2000Inactive216277
03/20/2000Inactive216277
03/27/2000Inactive216177
04/03/2000Inactive216077
04/10/2000Inactive216277
04/17/2000Inactive216277
04/24/2000Inactive216177
05/01/2000Inactive216177
05/08/2000Inactive216177
05/15/2000Inactive216277
05/22/2000Inactive216177
05/29/2000Inactive216177
06/05/2000Inactive216177
06/12/2000Inactive216077
06/19/2000Inactive216077
06/26/2000Inactive216077
07/03/2000Inactive216077
07/10/2000Inactive216177
07/17/2000#3626216272
07/24/2000#3604216668
07/31/2000#3625216668
08/07/2000#3558216969
08/14/2000#3562217069
08/21/2000#3574217169
08/28/2000#3590217069
09/04/2000#3613216969
09/11/2000#3413218770
09/18/2000#3410218770
09/25/2000#3408218770
10/02/2000#3410218670
10/09/2000#3365218670
10/16/2000#3373218470
10/23/2000#3395218470
10/30/2000#3404218470
11/06/2000#3320218570
11/13/2000#3341218470
11/20/2000#3385218670
11/27/2000#3384218770
12/04/2000#3401218771
12/11/2000#3379218871
12/18/2000#3386218971
12/25/2000#3390219071
01/01/2001#3396219171
01/08/2001#3358219371
01/15/2001#3350219471
01/22/2001#3370219471
01/29/2001#3385219471
02/05/2001#3345219471
02/12/2001#3408217271
02/19/2001#3423217271
02/26/2001#3423217171
03/05/2001#3502216272
03/12/2001#3469216372
03/19/2001#3467216372
03/26/2001#3476216372
04/02/2001#3476216472
04/09/2001#3479216372
04/16/2001#3486216472
04/23/2001#3490216372
04/30/2001#3537216272
05/07/2001#3572216472
05/14/2001#3574216572
05/21/2001#3575216472
05/28/2001#3574216472
06/04/2001#3580216372
06/11/2001#3581216272
06/18/2001#3593216272
06/25/2001#3575216372
07/02/2001#3573216472
07/09/2001#3569216372
07/16/2001#3572216372
07/23/2001#3597216275
07/30/2001Inactive216078
08/06/2001Inactive216178
08/13/2001Inactive216578
08/20/2001Inactive216578
08/27/2001Inactive216578
09/03/2001Inactive216478
09/10/2001Inactive216578

These ratings, calculated for Ubezio, Marco, 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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