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Career ratings for: McLaren, Leonard

  Date of rating  

World Rank Rating +/- Age
07/31/1991Inactive216176
08/31/1991Inactive217778
09/30/1991Inactive217678
10/31/1991Inactive217678
11/30/1991Inactive217478
12/31/1991Inactive216778
01/31/1992Inactive217078
02/29/1992Inactive216878
03/31/1992Inactive216978
04/30/1992Inactive216478
05/31/1992Inactive216378
06/30/1992Inactive215977
07/31/1992Inactive215587
08/31/1992Inactive216989
09/30/1992Inactive217089
10/31/1992Inactive217189
11/30/1992Inactive216889
12/31/1992Inactive216489
01/31/1993Inactive216589
02/28/1993Inactive216289
03/31/1993Inactive216389
04/30/1993Inactive216189
05/31/1993Inactive215889
06/30/1993Inactive215688
01/31/1997#3964218165
02/28/1997#3971218165
03/31/1997#4011218165
04/30/1997#4046217965
05/31/1997#4065217965
06/30/1997#4022218365
07/31/1997#4056218165
08/31/1997#4033218465
09/30/1997#4042218365
10/31/1997#4121218265
11/30/1997#4108218265
12/31/1997#4172218065
01/31/1998#4101217274
02/28/1998#4127217274
03/31/1998#4136217374
04/30/1998#4167217474
05/31/1998#4175217374
06/30/1998#4190217574
07/31/1998#4228217374
08/31/1998#4248217474
09/30/1998#4262217674
10/31/1998#4317217674
11/30/1998#4348217574
12/31/1998#4413217274
01/11/1999Inactive217274
01/18/1999Inactive217274
01/25/1999Inactive217274
02/01/1999Inactive216584
02/08/1999Inactive216584
02/15/1999Inactive216584
02/22/1999Inactive216584
03/01/1999Inactive216584
03/08/1999Inactive216684
03/15/1999Inactive216584
03/22/1999Inactive216584
03/29/1999Inactive216584
04/05/1999Inactive216784
04/12/1999Inactive216684
04/19/1999Inactive216784
04/26/1999Inactive216784
05/03/1999Inactive216784
05/10/1999Inactive216684
05/17/1999Inactive216684
05/24/1999Inactive216684
05/31/1999Inactive216684
06/07/1999Inactive216784
06/14/1999Inactive216784
06/21/1999Inactive216684
06/28/1999Inactive216684
07/05/1999Inactive216884
07/12/1999Inactive216884
07/19/1999Inactive216884
07/26/1999Inactive216884
08/02/1999Inactive216684
08/09/1999Inactive216784
08/16/1999Inactive216684
08/23/1999Inactive216584
08/30/1999Inactive216684
09/06/1999Inactive217084
09/13/1999Inactive216984
09/20/1999Inactive217084
09/27/1999Inactive217084
10/04/1999Inactive216984
10/11/1999Inactive216984
10/18/1999Inactive216984
10/25/1999Inactive216984
11/01/1999Inactive216984
11/08/1999Inactive216884
11/15/1999Inactive216984
11/22/1999Inactive216884
11/29/1999Inactive216984
12/06/1999Inactive217084
12/13/1999Inactive216984
12/20/1999Inactive216884
12/27/1999Inactive216884
01/03/2000Inactive216884
01/10/2000Inactive216884
01/17/2000Inactive216884
01/24/2000Inactive216884
01/31/2000Inactive216884
01/22/2001#3416219072
01/29/2001#3431219072
02/05/2001#3401218972
02/12/2001#3246218973
02/19/2001#3259218973
02/26/2001#3260218873
03/05/2001#3261218873
03/12/2001#3248218873
03/19/2001#3238218773
03/26/2001#3242218773
04/02/2001#3241218873
04/09/2001#3244218773
04/16/2001#3249218873
04/23/2001#3257218673
04/30/2001#3309218573
05/07/2001#3337218773
05/14/2001#3330218973
05/21/2001#3331218773
05/28/2001#3330218773
06/04/2001#3328218773
06/11/2001#3339218673
06/18/2001#3343218673
06/25/2001#3320218873
07/02/2001#3314218873
07/09/2001#3311218873
07/16/2001#3295218973
07/23/2001#3297218973
07/30/2001#3316218973
08/06/2001#3353219073
08/13/2001#3372218973
08/20/2001#3389218973
08/27/2001#3438218973
09/03/2001#3458218973
09/10/2001#3463218973

These ratings, calculated for McLaren, Leonard, 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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