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Career ratings for: Moussa, Othman

  Date of rating  

World Rank Rating +/- Age
11/30/1994Inactive219777
12/31/1994#3517215474
01/31/1995Inactive219077
02/28/1995Inactive219077
03/31/1995Inactive218977
04/30/1995Inactive218777
05/31/1995Inactive218777
06/30/1995Inactive219477
07/31/1995Inactive219577
08/31/1995Inactive219477
09/30/1995#3976213472
10/31/1995#3996213372
11/30/1995Inactive214077
12/31/1995Inactive214676
01/31/1996Inactive219087
02/29/1996Inactive218987
03/31/1996Inactive219087
04/30/1996Inactive218687
05/31/1996Inactive218687
06/30/1996Inactive219088
07/31/1996Inactive219188
08/31/1996Inactive218988
09/30/1996Inactive213082
10/31/1996Inactive212782
11/30/1996Inactive213488
12/31/1996Inactive214187
09/30/1998Inactive214079
10/31/1998Inactive214079
11/30/1998Inactive214880
12/31/1998Inactive215180
01/11/1999Inactive215180
01/18/1999Inactive215180
01/25/1999Inactive215180
02/01/1999Inactive217982
02/08/1999Inactive217982
02/15/1999Inactive217982
02/22/1999Inactive218082
03/01/1999Inactive217882
03/08/1999Inactive218082
03/15/1999Inactive217982
03/22/1999Inactive218082
03/29/1999Inactive218082
04/05/1999Inactive218282
04/12/1999Inactive218282
04/19/1999Inactive218382
04/26/1999Inactive218382
05/03/1999Inactive218082
05/10/1999Inactive217982
05/17/1999Inactive217982
05/24/1999Inactive217882
05/31/1999Inactive217882
06/07/1999Inactive217982
06/14/1999Inactive217982
06/21/1999Inactive217882
06/28/1999Inactive217982
07/05/1999Inactive218382
07/12/1999Inactive218482
07/19/1999Inactive218582
07/26/1999Inactive218582
08/02/1999Inactive218682
08/09/1999Inactive218782
08/16/1999Inactive218582
08/23/1999Inactive218682
08/30/1999Inactive218582
09/06/1999Inactive218382
09/13/1999Inactive218382
09/20/1999Inactive218382
09/27/1999Inactive218382
11/13/2000Inactive217375
11/20/2000#3127220965
11/27/2000#3131220965
12/04/2000#3137221165
12/11/2000#2944222765
12/18/2000#2957222865
12/25/2000#2960222865
01/01/2001#2975222965
01/08/2001#2934223265
01/15/2001#2927223365
01/22/2001#2934223365
01/29/2001#2939223465
02/05/2001#2900223465
02/12/2001#2493226165
02/19/2001#2501226165
02/26/2001#2502226165
03/05/2001#2487226165
03/12/2001#2467226165
03/19/2001#2463226065
03/26/2001#2467226065
04/02/2001#2470226065
04/09/2001#2463226065
04/16/2001#2466226165
04/23/2001#2467226065
04/30/2001#2485225965
05/07/2001#2510225965
05/14/2001#2536225865
05/21/2001#2547225565
05/28/2001#2556225565
06/04/2001#2551225565
06/11/2001#2548225665
06/18/2001#2607225365
06/25/2001#2609225365
07/02/2001#2607225365
07/09/2001#2606225365
07/16/2001#2572225665
07/23/2001#2570225565
07/30/2001#2575225565
08/06/2001#2598225565
08/13/2001#2603225565
08/20/2001#2619225565
08/27/2001#2651225565
09/03/2001#2667225565
09/10/2001#2684225565

These ratings, calculated for Moussa, Othman, 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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