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Career ratings for: Vehkalahti, Veli

  Date of rating  

World Rank Rating +/- Age
01/31/1998#4774206470
02/28/1998#4791206470
03/31/1998#4804206470
04/30/1998#4836206470
05/31/1998#4846206470
06/30/1998#4910206570
07/31/1998#4958206670
08/31/1998#5042206570
09/30/1998#5120206770
10/31/1998#5186206870
11/30/1998#5255206670
12/31/1998#5315206470
01/11/1999#4992206370
01/18/1999#5001206470
01/25/1999#5013206470
02/01/1999Inactive205780
02/08/1999Inactive205880
02/15/1999Inactive205780
02/22/1999Inactive205780
03/01/1999Inactive205780
03/08/1999Inactive205880
03/15/1999Inactive205780
03/22/1999Inactive205780
03/29/1999Inactive205780
04/05/1999Inactive205780
04/12/1999Inactive205780
04/19/1999Inactive205880
04/26/1999Inactive205880
05/03/1999Inactive205780
05/10/1999Inactive205680
05/17/1999Inactive205680
05/24/1999Inactive205680
05/31/1999Inactive205780
06/07/1999Inactive205880
06/14/1999Inactive205880
06/21/1999Inactive205780
06/28/1999Inactive205780
07/05/1999Inactive205880
07/12/1999Inactive205780
07/19/1999Inactive205780
07/26/1999Inactive205880
08/02/1999Inactive205980
08/09/1999Inactive206080
08/16/1999Inactive206080
08/23/1999Inactive205980
08/30/1999Inactive205980
09/06/1999Inactive206080
09/13/1999Inactive206080
09/20/1999Inactive206080
09/27/1999Inactive206080
10/04/1999Inactive206080
10/11/1999Inactive206080
10/18/1999Inactive205980
10/25/1999Inactive206080
11/01/1999Inactive206080
11/08/1999Inactive206080
11/15/1999Inactive206180
11/22/1999Inactive206080
11/29/1999Inactive206180
12/06/1999Inactive206180
12/13/1999Inactive206180
12/20/1999Inactive206080
12/27/1999Inactive206080
01/03/2000Inactive205980
01/10/2000Inactive206080
01/17/2000Inactive205980
01/24/2000Inactive205980
01/31/2000Inactive206080

These ratings, calculated for Vehkalahti, Veli, 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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