Chessmetrics Ratings: 68th Birthday

#	Player	Rating	+/-
1	Lasker, Emanuel	2712	62
2	Korchnoi, Viktor L	2646	47
3	Smyslov, Vassily V	2613	50
4	Maróczy, Géza	2595	70
5	Najdorf, Miguel	2557	57
6	Reshevsky, Samuel H	2537	57
7	Geller, Efim P	2534	50
8	Arkhangelsky, Boris	2522	68
9	Taimanov, Mark E	2512	54
10	Krogius, Nikolay V	2509	61

About these ratings

All players on their 68th birthday

#
Player Rating +/- Best? 75%? Rating Date

1 Lasker, Emanuel 2712 62 69.9% #2 12/31/1935: #2

2 Korchnoi, Viktor L 2646 47 14.5% #4 03/22/1999: #33

3 Smyslov, Vassily V 2613 50 5.6% #5 02/28/1989: #57

4 Maróczy, Géza 2595 70 6.6% #8 12/31/1937: #15

5 Najdorf, Miguel 2557 57 1.1% #11 02/28/1978: #83

6 Reshevsky, Samuel H 2537 57 0.4% #13 10/31/1979: #108

7 Geller, Efim P 2534 50 0.2% #13 02/28/1993: #225

8 Arkhangelsky, Boris 2522 68 0.6% #16 01/18/1999: #251

9 Taimanov, Mark E 2512 54 0.1% #16 01/31/1994: #304

10 Krogius, Nikolay V 2509 61 0.2% #17 06/30/1998: #339

11 Kholmov, Ratmir D 2509 52 0.1% #17 04/30/1993: #315

12 Averbakh, Yury L 2486 70 0.2% #21 01/31/1990: #348

13 Nikolac, Juraj 2482 57 #21 04/17/2000: #460

14 Tarrasch, Siegbert 2477 65 0.1% #22 12/31/1929: #29

15 Blackburne, Joseph H 2467 64 0.1% #23 12/31/1908: #31

16 Unzicker, Wolfgang 2464 56 #23 05/31/1993: #489

17 Tartakower, Saviely G 2463 67 0.1% #24 12/31/1954: #85

18 Byrne, Robert E 2462 73 0.1% #25 03/31/1996: #592

19 Gligoric, Svetozar 2462 53 #23 01/31/1991: #456

20 Bronstein, David I 2457 53 #24 01/31/1992: #531

21 Pachmann, Ludek 2443 69 #27 04/30/1992: #583

22 Nei, Iivo 2434 72 #29 10/25/1999: #725

23 Shamkovich, Leonid A 2430 66 #29 05/31/1991: #646

24 Barcza, Gedeon 2429 72 #30 06/30/1979: #294

25 Lein, Anatoly 2421 60 #30 03/22/1999: #774

26 Suetin, Alexey S 2401 52 #32 10/31/1994: #939

27 Mieses, Jacques 2394 70 #35 12/31/1932: #55

28 Dake, Arthur William 2393 69 #35 02/28/1978: #343

29 Benko, Pal C 2380 61 #36 06/30/1996: #1245

30 Czerniak, Moshe 2374 69 #38 12/31/1977: #389

31 Bisguier, Arthur B 2364 70 #40 09/30/1997: #1412

32 Bilek, István 2361 67 #40 08/07/2000: #1330

33 Karaklajic, Nikola 2345 67 #42 01/31/1994: #1460

34 Pelikán, Jorge 2343 61 #42 02/28/1974: #396

35 Opocenský, Karel 2335 70 #44 12/31/1959: #220

36 Villegas, Benito H 2335 66 #44 12/31/1944: #47

37 Vladimirov, Boris T 2335 63 #44 04/30/1997: #1798

38 Robatsch, Karl 2334 54 #43 09/30/1996: #1780

39 Damjanovic, Mato 2327 73 #46 02/28/1995: #1756

40 Honfi, Karoly 2325 67 #46 09/30/1998: #1874

41 Rotshtein, Efim 2313 65 #47 05/14/2001: #1879

42 Sarapu, Ortvin 2292 69 #52 12/31/1991: #1618

43 Müller, Hans 2286 71 #53 09/30/1964: #322

44 Gereben, Ernö 2284 61 #52 04/30/1975: #509

45 Baumgartner, Heinz 2278 66 #54 08/28/2000: #2347

46 Dueckstein, Andreas 2273 59 #54 07/31/1995: #2466

47 Palermo, Vicente 2271 72 #56 03/06/2000: #2415

48 Lengyel, Levente 2263 64 #56 06/11/2001: #2450

49 Grünfeld, Ernst 2248 67 #59 09/30/1961: #346

50 Lasker, Edward 2245 70 #60 06/30/1953: #180

51 de Souza Mendes, Joăo 2245 65 #60 06/30/1960: #259

52 Martinovsky, Eugene 2230 57 #61 09/27/1999: #3087

53 Paoli, Enrico 2228 55 #62 12/31/1975: #552

54 Lilienthal, Andor 2220 74 #65 04/30/1979: #656

55 Rosen, Willy 2220 73 #65 03/19/2001: #2894

56 Ridameya Tatche, Jose 2217 68 #65 06/30/1997: #3540

57 Vodep, Otto 2209 62 #65 12/31/1996: #3634

58 Engert, Immo 2207 72 #67 06/30/1974: #606

59 Fridh, Anton 2205 75 #67 11/30/1987: #1090

60 Jenei, Ferenc 2204 75 #68 09/30/1983: #820

61 Jugow, Alexander 2199 63 #67 08/16/1999: #3438

62 Senoner, Erich 2198 73 #68 10/31/1997: #3900

63 Vujovic, Milorad 2187 64 #69 04/09/2001: #3255

64 From, Sigfred 2184 66 #70 11/30/1993: #2898

65 Waller, Helmut 2172 65 #71 08/31/1994: #3290

66 Ozsvath, Andras 2170 64 #71 07/31/1997: #4192

67 Franklin, Michael J 2168 66 #72 02/01/1999: #3616

68 Rodriguez Gonzalez, Blas 2157 75 #74 09/30/1997: #4372

69 Kaminik, Aleksandar 2153 61 #73 08/30/1999: #4014

70 Mortimer, James 2150 63 #74 12/31/1900: #49

71 Bordell Rosell, Roman 2144 74 #75 07/31/1996: #4206

72 Winiwarter, Felix 2142 65 #75 02/28/1998: #4469

73 Szemzo, Lajos 2139 70 #75 02/29/1996: #4214

74 Szirmai, Eduard 2136 63 #75 01/31/1997: #4398

75 Hocevar, Nikola 2131 70 #76 09/30/1997: #4609

76 Stantic, Severino 2122 74 #77 01/24/2000: #4173

77 Haanpaa, Jorma 2098 56 #77 06/30/1998: #4860

78 Schild, Herbert 2095 75 #78 10/31/1997: #4893

79 Durao, Joaquim 2089 61 #78 09/30/1998: #5087

80 Lardot, Derik 2032 71 #80 05/07/2001: #4063

For each player on this list, the rating they possessed on their 68th birthday is listed. That rating was the last one calculated while they were 67 years of age, so it was their "current" rating on the day they turned 68. Players who played an insufficient number of games in recent years will not appear on the list, even though you may see them on lists for younger and/or older birthdays. Any players who had been completely inactive for three years are removed from the list.

Definition of columns in the above list:

# refers to the player's all-time rank on this list, compared to all other players when they turned 68.

Player is the full name of the player. Click on the player's name to see a career progression of their ratings.

Rating is the calculated rating for each player on their 68th birthday.

+/- 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" and removed from the ranking list due to their infrequent play against rated opponents. Mathematically, a player's rating is an estimate of their exact strength on their 68th birthday. The +/- value represents the standard deviation of that estimate; the player's true strength on their 68th birthday 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.

Best? is the estimated likelihood that the player was stronger on their 68th birthday than anyone else turning 68. Since ratings are known to be inaccurate, it is possible that a lower-rated player was actually much stronger than their rating would indicate, and it is also possible that other players were weaker than their ratings would indicate. This number indicates the likelihood that the player was indeed the strongest player ever among players turning 68. On a particular list, it will add up to 100% across the complete list of all players. This value is only calculated for the top 100 players on any rating list.

75%? gives a 75%-confidence world ranking for the player. Because ratings are known to be inaccurate, even if a particular player had the third-highest rating ever, among players turning 68, we cannot say with 100% certainty that they were truly one of the three strongest 68-year-old players. This number indicates the all-time rank that we are 75% sure the player is "no worse than". Thus if a player has a value of #12 in this column, we are 75% sure that the player is one of the twelve strongest players ever to turn 68. This value is only calculated for the top 100 players on any rating list.

Date is the exact date that the rating applied to. Click on that date to see the sorted list of all players' ratings on that date.