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Career ratings for: Johannsson, Ingi Randver

  Date of rating  

World Rank Rating +/- Age
12/31/1954#212226273
06/30/1955#236226773
12/31/1955Inactive225783
06/30/1956Inactive231279
12/31/1956#164237170
06/30/1957#164240767
12/31/1957Inactive236980
06/30/1958Inactive239277
12/31/1958#145242464
06/30/1959#130243964
12/31/1959#154241673
03/31/1960#162241473
06/30/1960#132242772
09/30/1960#129242772
12/31/1960Inactive240975
03/31/1961Inactive241475
06/30/1961#145242675
09/30/1961#147242475
12/31/1961Inactive240586
03/31/1962Inactive240686
06/30/1962Inactive241986
09/30/1962Inactive241786
03/31/1963#105246865
06/30/1963#100247465
09/30/1963#103247364
12/31/1963#103247264
03/31/1964#160242564
06/30/1964#154243164
09/30/1964#150243064
12/31/1964#158242964
03/31/1965#166243873
06/30/1965#159244273
09/30/1965#158244172
12/31/1965#157243973
03/31/1966Inactive243883
06/30/1966Inactive244283
09/30/1966Inactive244483
12/31/1966#138245566
03/31/1967#137245468
06/30/1967#134245868
09/30/1967#110247367
12/31/1967Inactive245275
03/31/1968Inactive245278
06/30/1968Inactive245578
09/30/1968Inactive246776
12/31/1968#137245362
03/31/1969#148245862
06/30/1969#140246462
09/30/1969#130247162
12/31/1969#142246270
02/28/1970#154245970
04/30/1970#146246470
06/30/1970#142246670
08/31/1970#142246870
10/31/1970#127247870
12/31/1970Inactive246580
02/28/1971Inactive246180
04/30/1971Inactive246680
06/30/1971Inactive247080
08/31/1971Inactive247080
10/31/1971Inactive248080
06/30/1974#154247169
08/31/1974#152247269
10/31/1974#140247469
12/31/1974#159246369
02/28/1975#177246370
04/30/1975#176246570
06/30/1975Inactive247179
08/31/1975Inactive247379
10/31/1975Inactive247879
12/31/1975Inactive247079
02/29/1976Inactive246680
04/30/1976Inactive247080
10/31/1976#181247366
12/31/1976#193246966
02/28/1977#185246664
04/30/1977#191247264
06/30/1977#189247265
08/31/1977#193247465
10/31/1977#183247871
12/31/1977#204247171
02/28/1978#200246873
04/30/1978#200246873
06/30/1978#205247074
08/31/1978#210247374
10/31/1978Inactive247781
12/31/1978Inactive246981
02/28/1979Inactive246883
04/30/1979Inactive247083
06/30/1979Inactive247184
08/31/1979Inactive246984
01/31/1981Inactive243276
02/28/1981Inactive242976
03/31/1981Inactive242976
04/30/1981Inactive242976
05/31/1981Inactive242876
06/30/1981Inactive243276
07/31/1981Inactive243176
08/31/1981Inactive242976
09/30/1981Inactive242976
10/31/1981Inactive242977
11/30/1981Inactive243077
12/31/1981Inactive242377
01/31/1982Inactive242786
02/28/1982Inactive242787
03/31/1982Inactive242787
04/30/1982Inactive242987
05/31/1982Inactive242787
06/30/1982Inactive243187
07/31/1982Inactive242887
08/31/1982Inactive243087
09/30/1982Inactive242887
10/31/1982Inactive239278
11/30/1982Inactive239278
12/31/1982Inactive238978
01/31/1983Inactive238682
02/28/1983Inactive238882
03/31/1983Inactive238982
04/30/1983Inactive239282
05/31/1983Inactive239182
06/30/1983Inactive239382
07/31/1983Inactive239282
08/31/1983Inactive239082
09/30/1983Inactive239382
10/31/1983Inactive239789
11/30/1983Inactive239989
12/31/1983Inactive239189

These ratings, calculated for Johannsson, Ingi Randver, 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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