Back to names list

Career ratings for: Del Prado, Cesar

  Date of rating  

World Rank Rating +/- Age
01/31/1992Inactive223579
02/29/1992Inactive223379
03/31/1992Inactive223079
04/30/1992Inactive222879
05/31/1992Inactive222679
06/30/1992Inactive222379
07/31/1992Inactive222579
08/31/1992Inactive222379
09/30/1992Inactive222579
10/31/1992Inactive223179
11/30/1992#2304223071
12/31/1992#2309223471
01/31/1993#2277224875
02/28/1993#2292224475
03/31/1993#2334223975
04/30/1993#2361224075
05/31/1993#2389223775
06/30/1993#2402223475
07/31/1993#2398223475
08/31/1993#2442223675
09/30/1993#2448223867
10/31/1993#2447224267
11/30/1993#2640222370
12/31/1993#2649222470
01/31/1994#2651223572
02/28/1994#2719223172
03/31/1994#2783222572
04/30/1994#2781222572
05/31/1994#2794222872
06/30/1994#2828222372
07/31/1994#2840222572
08/31/1994#2874222572
09/30/1994Inactive223177
10/31/1994Inactive223477
11/30/1994Inactive221680
12/31/1994Inactive221680
01/31/1995Inactive222682
02/28/1995Inactive222282
03/31/1995Inactive221782
04/30/1995Inactive221982
05/31/1995Inactive221882
06/30/1995Inactive221682
07/31/1995Inactive221682
08/31/1995Inactive221882
09/30/1995Inactive222688
10/31/1995Inactive223288

These ratings, calculated for Del Prado, Cesar, 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