Back to names list

Career ratings for: Perez Aleman, Pedro Tomys

  Date of rating  

World Rank Rating +/- Age
01/31/1993Inactive224179
02/28/1993Inactive223979
03/31/1993Inactive223779
04/30/1993Inactive224079
05/31/1993Inactive223879
06/30/1993#2558221469
07/31/1993#2582221169
08/31/1993#2676221067
09/30/1993#2704220767
10/31/1993#2743220767
11/30/1993#2760220867
12/31/1993#2798220467
01/31/1994#2527224771
02/28/1994#2564224771
03/31/1994#2593224471
04/30/1994#2564224671
05/31/1994#2574225071
06/30/1994#2949220975
07/31/1994#2975220775
08/31/1994Inactive220377
09/30/1994Inactive220177
10/31/1994Inactive219977
11/30/1994Inactive220277
12/31/1994Inactive219677
01/31/1995Inactive223981
02/28/1995Inactive223981
03/31/1995Inactive223781
04/30/1995Inactive223981
05/31/1995Inactive224081
06/30/1995Inactive220286
07/31/1995Inactive219986
08/31/1995Inactive219788
09/30/1995Inactive219078
10/31/1995Inactive219278
11/30/1995Inactive219278
12/31/1995Inactive218978
01/31/1996Inactive223080
02/29/1996Inactive223080
03/31/1996Inactive222980
04/30/1996Inactive223080
05/31/1996Inactive223180
06/30/1996Inactive219182
07/31/1996Inactive218982
08/31/1996Inactive218682
09/30/1996Inactive218489
10/31/1996Inactive218589
11/30/1996#4050217172
12/31/1996#4090217272
01/31/1997#3774219673
02/28/1997#3794219673
03/31/1997#3818219573
04/30/1997#3820219673
05/31/1997#3831219673
06/30/1997#4157217174
07/31/1997#4187217074
08/31/1997#4253216874
09/30/1997#4273216575
10/31/1997#4341216575
11/30/1997Inactive216583
12/31/1997Inactive216483
01/31/1998Inactive218683
02/28/1998Inactive218783
03/31/1998Inactive218883
04/30/1998Inactive219083
05/31/1998Inactive219183
06/30/1998Inactive216484
07/31/1998Inactive216284
08/31/1998Inactive216084
09/30/1998Inactive215986
10/31/1998Inactive216086

These ratings, calculated for Perez Aleman, Pedro Tomys, 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.

Back to top

Home