< June 30, 1974     Back to date list    October 31, 1974 >

Top 10 active players as of August 31, 1974

  #  

Player Rating +/-
1 Fischer, Robert J289160
2 Karpov, Anatoly E276849
3 Korchnoi, Viktor L272849
4 Petrosian, Tigran V270549
5 Spassky, Boris V269949
6 Polugaevsky, Lev A269748
7 Hübner, Robert269153
8 Tal, Mikhail268448
9 Larsen, Bent266950
10 Portisch, Lajos266249

About these ratings

Top 500 active players as of August 31, 1974

  #  

Player Rating +/- Best? 75%? Age
1 Fischer, Robert J28916091.7% #131.48
2 Karpov, Anatoly E2768495.1% #523.27
3 Korchnoi, Viktor L2728491.2% #1043.44
4 Petrosian, Tigran V2705490.4% #1545.21
5 Spassky, Boris V2699490.3% #1637.59
6 Polugaevsky, Lev A2697480.3% #1739.78
7 Hübner, Robert2691530.3% #2025.82
8 Tal, Mikhail2684480.1% #2137.81
9 Larsen, Bent2669500.1% #2739.49
10 Portisch, Lajos266249 #3037.41
11 Vasiukov, Evgeny A265451 #3541.49
12 Vaganian, Rafael A264952 #3822.87
13 Smyslov, Vassily V264850 #3753.44
14 Geller, Efim P264551 #3949.50
15 Dvoretsky, Mark I264454 #4126.73
16 Ljubojevic, Ljubomir264448 #3923.83
17 Byrne, Robert E264453 #4146.36
18 Tukmakov, Vladimir B264150 #4128.46
19 Tseshkovsky, Vitaly V263754 #4529.93
20 Furman, Semen A263258 #4953.75
21 Romanishin, Oleg M263255 #4922.64
22 Mecking, Henrique263255 #4922.61
23 Krogius, Nikolay V263062 #5344.11
24 Kuzmin, Gennady P262851 #5028.62
25 Keres, Paul262653 #5158.65
26 Hort, Vlastimil262448 #5130.64
27 Lein, Anatoly262358 #5643.43
28 Smejkal, Jan262050 #5428.44
29 Grefe, John A261658 #6126.98
30 Gufeld, Eduard E261353 #5938.45
31 Andersson, Ulf261248 #5823.18
32 Gligoric, Svetozar260949 #6151.58
33 Savon, Vladimir A260950 #6233.92
34 Balashov, Yury S260450 #6625.47
35 Gheorghiu, Florin260449 #6530.40
36 Browne, Walter S260350 #6625.64
37 Gipslis, Aivars260359 #7137.56
38 Gulko, Boris F260355 #6927.56
39 Averbakh, Yury L259667 #8152.56
40 Schmid, Lothar M259459 #7846.31
41 Kavalek, Lubomir259449 #7331.06
42 Szabó, László259250 #7557.45
43 Panno, Oscar R259153 #7739.46
44 Kholmov, Ratmir D258753 #8049.30
45 Suetin, Alexey S258553 #8147.79
46 Ivkov, Borislav258549 #7940.80
47 Olafsson, Fridrik258453 #8339.60
48 Klovans, Janis257961 #9139.39
49 Dzindzichashvili, Roman Y257861 #9330.32
50 Beliavsky, Alexander G257852 #8620.71
51 Liberzon, Vladimir M257655 #9037.44
52 Unzicker, Wolfgang257455 #9349.18
53 Pachmann, Ludek257269 #10250.30
54 Karasev, Vladimir I257156 #9536.21
55 Sanguinetti, Raúl C256860 #10041.58
56 Pfleger, Helmut256852 #9631.07
57 Matulovic, Milan256851 #9539.22
58 Alburt, Lev O256657 #10129.03
59 Bagirov, Vladimir K256556 #10038.04
60 Grigorian, Karen A256455 #10026.98
61 Uhlmann, Wolfgang256449 #9839.42
62 Benko, Pal C256251 #10046.13
63 Ribli, Zoltán256148 #9922.98
64 Lutikov, Anatoly S256058 #10541.57
65 Bronstein, David I256052 #10350.53
66 Reshevsky, Samuel H255954 #10462.76
67 Taimanov, Mark E255851 #10448.57
68 Darga, Klaus V255862 #11140.52
69 Nei, Iivo255663 #11242.83
70 Najdorf, Miguel255653 #10864.38
71 Evans, Larry M255259 #11442.44
72 Planinc, Albin255050 #11030.37
73 Csom, István255049 #11034.25
74 Kurajica, Bojan254953 #11326.79
75 Kapengut, Albert Z254758 #11830.16
76 Matanovic, Aleksandar254553 #11644.27
77 Murey, Yakov254574 #12833.08
78 Lombardy, William J254154 #12036.74
79 Tarjan, James E253953 #12122.53
80 Velimirovic, Dragoljub253851 #12132.30
81 Platonov, Igor V253862 #12740.62
82 Parma, Bruno253851 #12232.67
83 Averkin, Orest N253757 #12630.52
84 Timman, Jan H253748 #12022.71
85 Razuvaev, Yury S253756 #12528.88
86 Shereshevsky, Mikhail I253670 #13324.36
87 Commons, Kim S253656 #12623.11
88 Kupreichik, Viktor D253556 #12825.16
89 Mukhin, Mikhail A253459 #12926.53
90 Radulov, Ivan253250 #12535.65
91 Adorján, András253249 #12624.42
92 Sax, Gyula253150 #12723.20
93 Jansa, Vlastimil253149 #12731.76
94 Bilek, István252350 #13442.05
95 García Gonzáles, Guillermo252352 #13520.73
96 Hecht, Hans-Joachim252149 #13535.59
97 Donner, Johannes H252149 #13447.15
98 Palatnik, Semen A252063 #14424.43
99 Zaitsev, Igor A252071 #14836.26
100 Malich, Burkhard G252051 #13737.76
101 Filip, Miroslav251856 45.84
102 Zhidkov, Valery S251768 34.98
103 Quinteros, Miguel A251649 26.68
104 Kirov Ivanov, Nino251655 28.97
105 Díez del Corral, Jesús251658 41.40
106 Bukic, Enver251559 36.75
107 Kovacevic, Vladimir251467 32.43
108 Karner, Hillar251266 39.09
109 Osnos, Viacheslav V251266 39.10
110 Rashkovsky, Nukhim N251155 28.37
111 Shamkovich, Leonid A251062 51.25
112 Weinstein, Norman250959 23.90
113 Suttles, Duncan250952 28.69
114 Keene, Raymond250949
115 Nikolaevsky, Yuri V250873
116 Georgadze, Tamaz V250857 26.81
117 Torre, Eugenio250651 22.82
118 Antoshin, Vladimir S250560 45.30
119 Sosonko, Gennadi250552 31.29
120 Bobotsov, Milko G250458 42.91
121 Sveshnikov, Evgeny E250357 24.55
122 Podgaets, Mikhail Y250057 27.11
123 Forintos, Gyözö V249851 39.09
124 Ubilava, Elizbar E249665 24.01
125 Padevsky, Nikola B249654 41.26
126 Marovic, Dražen249554 36.63
127 O'Kelly de Galway, Albéric249365 63.29
128 Karaklajic, Nikola249365 48.52
129 Gurgenidze, Bukhuti I249162 40.80
130 Tseitlin, Mark D249062 30.93
131 Schmidt, Wlodzimierz248849 31.39
132 Tringov, Georgy P248752 37.48
133 Kraidman, Yair248755 41.83
134 Panchenko, Alexander N248571 20.90
135 Hartston, William R248451 27.05
136 Cvetkovic, Srdjan248366 28.51
137 Pribyl, Josef248251 26.88
138 Gerusel, Mathias248256 36.57
139 Ree, Hans248149 29.95
140 Popov, Luben248152 38.59
141 Raicevic, Vladimir248056 25.33
142 Dueball, Juergen247855 29.42
143 Espig, Lutz247654 25.65
144 Zilberstein, Valery I247661 31.38
145 Antunac, Goran247560 29.37
146 Mišta, Ladislav247563 30.83
147 Kuijpers, Franciscus Antonius247458
148 Ornstein, Axel247454 22.35
149 Maric, Rudolf247372 47.30
150 Mohrlok, Dieter247362
151 Torán Albero, Román247361 42.89
152 Johannsson, Ingi Randver247269
153 Minic, Dragoljub247254 37.49
154 Barcza, Gedeon247163 63.03
155 Sigurjónsson, Gudmundur247055 26.93
156 Schweber, Samuel246958 38.12
157 Ciocaltea, Victor246849 42.62
158 Byrne, Donald246768 44.22
159 Soltis, Andrew E246658 27.26
160 Knezevic, Milorad246656 37.83
161 Saidy, Anthony F246553 37.29
162 Pilnik, Herman246561 60.65
163 Moe, Mogens246562 30.47
164 Robatsch, Karl246556 45.87
165 Hamann, Svend246561 33.89
166 Tatai, Stefano246450 36.44
167 Lengyel, Laszlo246469 30.14
168 Ghizdavu, Dumitru246156 25.28
169 Barczay, Laszlo246157 38.53
170 Botterill, George Steven245964
171 Pomar Salamanca, Arturo245950 42.99
172 Suba, Mihai245863 27.25
173 Estrin, Yacov B245760 51.36
174 Fedorov, Vladislav245773 21.11
175 Kaplan, Julio P245753 24.10
176 Knaak, Rainer F245750 21.46
177 Zhuravliov, Valerij245660 35.72
178 Zuckerman, Bernard245656 31.42
179 Rogoff, Kenneth S245457 21.44
180 Stanciu, Traian245375 38.96
181 Doroshkievich, Vladimir K245274 36.68
182 Lerner, Konstantin Z245270 24.51
183 Stean, Michael F245253 20.98
184 Zuidema, Coenraad245158
185 Dueckstein, Andreas245169 47.08
186 Westerinen, Heikki MJ245150 30.34
187 Damjanovic, Mato245151 47.44
188 Kestler, Hans-Günter245159 34.72
189 Ghitescu, Theodor245152 40.60
190 Timoshchenko, Gennady245161 25.34
191 Rukavina, Josip245154 31.76
192 Vukic, Milan245059 31.03
193 Bertok, Mario244975 44.99
194 Mednis, Edmar J244953 37.44
195 Biyiasas, Peter244957 23.78
196 Makarichev, Sergey Y244960 20.79
197 Capelan, Guenter244959 42.09
198 Rytov, Boris244970
199 Bogdanovic, Rajko244871 42.79
200 Spiridonov, Nikola244863 36.51
201 Honfi, Karoly244853 43.84
202 Vranesic, Zvonko244772 35.90
203 Sofrevski, Jovan244665 39.04
204 Hennings, Artur244554 34.14
205 Cosulich, Roberto244357
206 Mueller, Klaus Uwe244256
207 Enklaar, Bertus F244250
208 Miles, Anthony J244258 19.36
209 Kuprejanov, George244274
210 Calvo Minguez, Ricardo244255 30.85
211 Brinck Claussen, Bjorn244174
212 Lengyel, Levente244052 41.22
213 Anikaev, Yury243957 26.17
214 Rodriguez, Amador243866 17.97
215 McKay, Roderick M243863 22.55
216 Messing, Hrvoje243769 34.10
217 Johannessen, Svein243659 36.87
218 Faragó, Iván243653 28.41
219 Janoševic, Dragoljub243553 51.15
220 Hase, Juan Carlos243459
221 Krnic, Zdenko243463 26.91
222 Christoph, Manfred243471 43.26
223 Ermenkov, Evgenij243459 24.92
224 Cortlever, Nicolaas243373 59.21
225 Kuindzhi, Alexander243367
226 Castro Rojas, Oscar Humberto243164 21.31
227 Cherepkov, Alexander V243072 53.83
228 Plachetka, Jan242953 29.54
229 Jansson, Borje242957 32.47
230 Kozlov, Vladimir N242875 24.25
231 Rossolimo, Nicolas242873 64.51
232 Haygarth, Michael J242873
233 Garcia, Raimundo242855 38.26
234 Dely, Peter242855 40.15
235 Cuasnicu, Oscar242767 31.85
236 Szmetan, Jorge242756 24.26
237 Yanofsky, Daniel A242761 49.43
238 Suess, Alois242669 31.22
239 Sanguinetti, Renato242671 58.36
240 Mariotti, Sergio242655 28.06
241 Minev, Nikolay N242658 43.65
242 Jiménez Zerquera, Eleazar242660 46.18
243 Rossetto, Héctor D242555 51.97
244 Bisguier, Arthur B242554 44.89
245 Haag, Ervin242572 41.64
246 Pritchett, Craig William242458
247 Gilden, Lawrence C242463
248 Gaprindashvili, Nona242465 33.33
249 Balinas, Rosendo Carrean242270
250 Rodriguez Vargas, Orestes242257 31.16
251 Peretz, Malkiel242268 31.23
252 Kozma, Julius242173 45.25
253 Liebert, Heinz242051 38.27
254 Lukin, Andrei M242070 26.01
255 Ostojic, Predrag242054 36.53
256 Corden, Martyn J241969
257 Williams, Arthur Howard241755
258 Chellstorp, Craig V241663
259 Martz, William E241455
260 Schiffer, Karl Josef241476
261 Scholl, Eddie C241457 29.87
262 Ungureanu, Emil241463 37.83
263 Mestrovic, Zvonimir241364 29.87
264 Bednarski, Jacek B241152 35.47
265 Vadasz, Laszlo241154 26.59
266 Pytel, Krzysztof240950 29.29
267 Langeweg, Kick240950 37.48
268 Prameshuber, Aleksander240873
269 Rubinetti, Jorge A240753 29.42
270 Kolarov, Atanas S240673 40.50
271 Portisch, Ferenc240570 35.39
272 Vogt, Lothar H240551 22.62
273 Garcia, Wilfredo240468 19.77
274 Jakobsen, Ole240458 31.86
275 Cuéllar Gacharná, Miguel240362 57.79
276 Eising, Johannes240354 39.25
277 Simic, Radoslav240271 26.23
278 Boey, Josef240260 40.29
279 Garcia Martinez, Silvino240149 30.16
280 Augustin, Josef240167 32.29
281 Clarke, Peter H240174
282 Ek, Hans240063 45.90
283 Andersen, Borge240065 40.45
284 Lehmann, Heinz Dr240056
285 Soos, Bela239973 44.48
286 Neckar, Lubomir239966 24.08
287 Bohosjan, Sarkis239863 33.43
288 Lechtynsky, Jiri239855 26.77
289 Piasetski, Leon David239774
290 Peev, Peicho Chonev239657 34.41
291 Kovacs, Laszlo M239662 35.90
292 Řgaard, Leif239656 22.65
293 Jankovec, Ivan239663 35.87
294 Cobo Arteaga, Eldis239556
295 Korensky, Valeri S239571
296 Porat, Yosef239572 65.23
297 Hernandez, Roman239572 24.77
298 Hazai, Laszlo239461 21.21
299 Sapi, Laszlo239465 39.45
300 Tompa, Janos239361 27.34
301 Siaperas, Triantafyllos239369 42.08
302 Myagmarsuren, Lhamsuren239362 36.54
303 Hansson, Dan239370 22.22
304 Czerniak, Moshe239361 64.58
305 Nicevski, Risto239254 29.18
306 Fuller, Maxwell L239266 29.59
307 Grinberg, Ricardo239170 26.63
308 Kristiansen, Erling239062 37.71
309 Hug, Werner238952 21.97
310 Bellin, Robert238959 22.17
311 Doda, Zbigniew238952 43.53
312 Zwaig, Arne238963
313 Macles, Jacques238864 29.15
314 Penrose, Jonathan238759 40.89
315 Hartoch, Robert G238750
316 Cuartas, Carlos238661 34.04
317 Basman, Michael J238659 28.46
318 Ivanovic, Božidar238671 28.02
319 Kupka, Slavoj238563 32.15
320 Ujtumen, Tudev238562 35.01
321 Filipowicz, Andrzej238552 36.30
322 Sydor, Andrzej238557 37.66
323 Kinnmark, Ove238461 29.69
324 Friedman, Shmuel238471
325 Adamski, Jan238351 30.80
326 Foguelman, Alberto238372 50.88
327 Karklins, Andrew238358 27.38
328 Bukal, Vladimir Sr238268 34.83
329 Rajkovic, Dusan238260 32.21
330 Bohm, Hans238259 24.63
331 Mestel, A Jonathan238161 17.47
332 Seret, Jean Luc238068
333 Kostro, Jerzy238054 37.60
334 Ingerslev, Age238073 40.88
335 Vujacic, Borivoje238076 24.96
336 Roehrl, Karl238068 33.64
337 Nunn, John D M237967 19.35
338 Ilievski, Dimitar237975 33.02
339 Stoica, Valentin237965 24.54
340 Deze, Anton237959
341 van Scheltinga, Tjeerd D237857 60.48
342 Barle, Janez237769 22.44
343 Pedersen, Eigil237773
344 Belkadi, Ridha237666 49.35
345 Estevez Morales, Guillermo237554
346 Paehtz, Thomas Sr237558 17.98
347 Van Riemsdijk, Herman C237363 26.01
348 Shashin, Alexsander A237375
349 Blatny, Frantisek237365 41.41
350 Masic, Ljubomir237258 38.15
351 Visier Segovia, Fernando237258 31.58
352 Markland, Peter R237255 23.38
353 Bordonada, Glenn237171
354 Eley, Brian237061
355 Mititelu, Gheorghe237076 39.83
356 Braun, Gottfried236964 41.17
357 Toth, Bela236755 31.37
358 Partos, Charles236763 38.06
359 Pavlov, Mircea236761 36.96
360 Balcerowski, Witold236773 39.06
361 Prandstetter, Eduard236666 25.71
362 Rath, Ulrik236669 27.68
363 Trapl, Jindrich236675 32.44
364 Bellon Lopez, Juan Manuel236652 24.31
365 Lundin, Erik236668 70.16
366 Bhend, Edwin236575 42.97
367 Rajna, George236566 27.55
368 Olsson, Ake236570 40.33
369 Zichichi, Alvise236360 36.16
370 Grabczewski, Romuald236357 42.57
371 Rodriguez Gonzales, Jesus236264
372 Zinn, Lothar236155 36.45
373 Sinclair, Ian236169
374 Wade, Robert Graham236157
375 Sloth, Jorn236171 29.98
376 Spassov, Liuben236158 31.44
377 Lanc, Alois236164 26.54
378 Liljedahl, Lennart236158 27.01
379 Polgar, Istvan236168 29.76
380 Moehring, Guenther236056 37.77
381 Campos Lopez, Mario236059 31.29
382 Uddenfeldt, Dan235965 23.42
383 Kaldor, Avraham235867 27.28
384 Puc, Stojan235869 53.39
385 Donoso Velasco, Pedro H235874 30.51
386 Wirthensohn, Heinz235762 23.32
387 Szymczak, Zbigniew235759 22.66
388 Fichtl, Jirí235756 53.54
389 Nikolic, Stanimir235665 39.60
390 Kagan, Shimon235660 32.40
391 Holm, Sejer235661 35.06
392 Brond, Victor235566
393 Sznapik, Aleksander235453 23.56
394 Gasic, Bozidar235467 36.88
395 Schoeneberg, Manfred235463 28.15
396 Garcia, Horacio235465
397 Perkins, Alan H235371 25.45
398 Nordstrom, Felix235371 30.24
399 Whiteley, Andrew J235363 27.23
400 Baumbach, Friedrich235368 38.97
401 Gesos, Pavlos235365 29.27
402 Levy, David Neil Lawrence235356
403 Hohler, Peter235271 33.38
404 Pelikán, Jorge235162 68.36
405 Nagy, Ervin234967 29.09
406 Emma, Jaime J234958 36.62
407 Denker, Arnold S234872 60.53
408 Kunsztowicz, Uwe234863 30.62
409 Mihaljcisin, Mihajlo234674 41.53
410 Akvist, Hakan234660 32.84
411 Shaw, Terrey Ian234574
412 Banas, Jan234554 27.24
413 Ekenberg, Bengt234374
414 Webb, Simon234265 25.22
415 Jacobsen, Bo234272 25.72
416 Pinal, Nelson Borges234263
417 Formanek, Edward W234168 32.32
418 Poutiainen, Pertti234162
419 Pustina, Ylvi234171
420 Jongsma, Alexander234175 36.25
421 Bönsch, Uwe234058 15.87
422 Cafferty, Bernard233964 40.18
423 Harandi, Khosro233969 23.99
424 Camara, Helder233960 37.57
425 Kaufman, Larry C233864 26.79
426 Quinones, Oscar Carillo233762
427 Saren, Ilkka J233770 34.29
428 Barreras, Alberto233764 23.40
429 Vilela, Jose Luis233768 21.45
430 Navarovszky, Laszlo233767 41.41
431 Vogel, Jaap233561 26.42
432 Neukirch, Detlef233365 34.06
433 Tan Lian Ann233365
434 De Greif, Boris233263 44.55
435 Schaufelberger, Heinz233261 26.78
436 Hindle, Owen M233270 34.46
437 Bouaziz, Slim233165 24.37
438 Palermo, Vicente233173 42.47
439 Pintér, József233166 20.81
440 Cardoso, Radolfo Tan233153
441 Debarnot, Roberto233054 27.07
442 De la Vega, Hector233069 48.46
443 Pietrusiak, Bogdan233061 41.13
444 Cooper, John Grantley233066
445 Horvath, Tamas232966 22.85
446 Romm, Meir232972 35.19
447 Janetschek, Karl232865 34.37
448 Kluger, Guyla232763 60.63
449 Helmertz, Per Inge232674
450 Poch, Cesar Guillermo232663
451 Maciejewski, Andrzej232659 23.14
452 Naranja, Renato232555 33.93
453 Rantanen, Yrjo A232560 24.36
454 Szilágyi, György232561 53.16
455 Thorbergsson, Freysteinn232574
456 Boudy, Julio232465 23.22
457 Kushnir, Alla232468
458 Ghinda, Mihail Viorel232476 25.10
459 Reicher, Emanoil232472 44.43
460 Domnitz, Zadok232371 40.87
461 Horner, Jeff232376 25.02
462 Silva, Fernando232261 24.07
463 Fridh, Anton232272 54.70
464 Meduna, Eduard232264 23.97
465 Van Geet, Dirk Daniel232173 42.50
466 Bachtiar, Arovah232061 40.43
467 Iskov, Gert232061 26.09
468 Van Baarle, C John232068 29.37
469 Lombard, Andre232053 23.94
470 Zilberman, Nathan R231974 34.33
471 Ligterink, Gert231761 24.79
472 Hurme, Harri M231667 29.25
473 Todorcevic, Miodrag231665 33.81
474 Friedgood, David231671 28.14
475 Onat, Ilhan231671 44.74
476 Ludgate, Alan231575 28.99
477 Carvalho, Herbert Abreu231573 19.91
478 Blackstock, Lesly SF231474
479 Starck, Bodo231466 39.88
480 Matera, Salvatore Joseph231467
481 Menvielle Lacourrelle, Augusto231459 36.05
482 Cibulka, Vladimir231162 32.83
483 Yepez Obando, Olavo231174
484 Dieks, Roy G231064 18.58
485 Boersma, Paulus A230973 26.12
486 Hoen, Ragnar230761 33.90
487 Bennett, Gerald H230571
488 Kolbak, Jens230472 29.58
489 Skalkotas, Nikolaos230469 24.94
490 Franzen, Jozef230363 28.57
491 Moles, John230373 24.94
492 Juarez, Carlos Eleodoro230369 36.17
493 Van den Berg, AMJ.230375
494 Gross, Stefan230366 25.01
495 Lukacs, Peter230262 24.14
496 Bronstein, Luis230164 28.25
497 Gasztonyi, Endre230174
498 Tuzovsky, Alexander I229969
499 Ardiansyah, Haji229957 22.74
500 Medina García, Antonio A229953 54.91

These ratings, calculated as of August 31, 1974, incorporate all games (against rated opponents) played in the time between September 1, 1973 and August 31, 1974, along with the ratings that were already calculated as of August 31, 1973. Players who have played an insufficient number of games in recent years will not appear on the list, even though you may see them on previous and/or subsequent lists. Any players who have been completely inactive for three years are removed from the list.

Definition of columns in the above list:

# refers to the player's world rank on this list.

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

Rating is the calculated rating for the player, as of August 31, 1974. This represents the player's estimated strength on September 1, 1974.

+/- 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 September 1, 1974. The +/- value represents the standard deviation of that estimate; the player's true strength on September 1, 1974 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 actually the strongest player in the world on September 1, 1974. Since ratings are known to be inaccurate, it is possible that a lower-rated player is actually much stronger than their rating would indicate, and it is also possible that other players are weaker than their ratings would indicate. This number indicates the likelihood that the player is indeed the strongest player in the world. 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 is rated third in the world, we cannot say with 100% certainty that they are truly one of the three strongest players in the world. This number indicates the world 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 in the world. This value is only calculated for the top 100 players on any rating list.

Age is the player's exact age in years, on August 31, 1974. 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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