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Top 10 active players as of October 31, 1976


Top 500 active players as of October 31, 1976

  #  

Player Rating +/- Best? 75%? Age
1 Karpov, Anatoly E27655042.5% #425.44
2 Korchnoi, Viktor L2715509.6% #1445.61
3 Petrosian, Tigran V2712508.9% #1447.37
4 Polugaevsky, Lev A2708507.8% #1541.94
5 Tal, Mikhail2683492.8% #2439.97
6 Mecking, Henrique2680543.3% #2724.77
7 Spassky, Boris V2672522.1% #3039.75
8 Geller, Efim P2669501.6% #3151.66
9 Ljubojevic, Ljubomir2668491.5% #3225.99
10 Tseshkovsky, Vitaly V2668491.4% #3232.10
11 Hübner, Robert2665511.6% #3427.98
12 Portisch, Lajos2664491.2% #3439.57
13 Smyslov, Vassily V2661511.4% #3655.60
14 Larsen, Bent2661501.1% #3641.66
15 Hort, Vlastimil2659480.8% #3632.80
16 Vaganian, Rafael A2649510.7% #4325.04
17 Romanishin, Oleg M2642520.5% #4924.81
18 Lein, Anatoly2640742.7% #6045.59
19 Gulko, Boris F2640510.5% #5029.73
20 Gufeld, Eduard E2638550.6% #5240.62
21 Balashov, Yury S2635510.3% #5327.63
22 Kudriashov, Anatoly A2630732.0% #6634.54
23 Gligoric, Svetozar2630510.3% #5753.74
24 Kuzmin, Gennady P2629530.3% #5730.78
25 Savon, Vladimir A2628510.2% #5836.10
26 Ribli, Zoltán2626510.2% #5925.15
27 Smejkal, Jan2625490.1% #5930.61
28 Kholmov, Ratmir D2621520.2% #6351.47
29 Vasiukov, Evgeny A2616530.1% #6743.65
30 Byrne, Robert E2614510.1% #6948.53
31 Andersson, Ulf2613480.1% #6825.34
32 Olafsson, Fridrik2612510.1% #7041.76
33 Liberzon, Vladimir M2612540.1% #7239.61
34 Gipslis, Aivars2609540.1% #7439.73
35 Beliavsky, Alexander G2607510.1% #7422.87
36 Gheorghiu, Florin260650 #7532.57
37 Dvoretsky, Mark I2603530.1% #7828.89
38 Krogius, Nikolay V2601610.2% #8546.27
39 Evans, Larry M2601670.5% #8944.61
40 Browne, Walter S260050 #7927.81
41 Panno, Oscar R2599530.1% #8241.62
42 Timman, Jan H259849 #8124.87
43 Uhlmann, Wolfgang259749 #8241.59
44 Kavalek, Lubomir259550 #8533.23
45 Taimanov, Mark E259451 #8550.73
46 Tukmakov, Vladimir B259450 #8530.63
47 Chekhov, Valery A2592610.1% #9320.92
48 Dorfman, Iosif D2592590.1% #9124.50
49 Sveshnikov, Evgeny E259056 #9226.72
50 Dzindzichashvili, Roman Y2590720.4% #10332.49
51 Darga, Klaus V2590680.3% #10042.69
52 Unzicker, Wolfgang2589630.1% #9851.35
53 Furman, Semen A2588550.1% #9355.91
54 Bronstein, David I258450 #9452.70
55 Nikolac, Juraj2583590.1% #10044.52
56 Pfleger, Helmut258257 #9933.23
57 Zaitsev, Igor A258257 #10038.43
58 Palatnik, Semen A2579640.1% #10626.60
59 Szabó, László257752 #10259.62
60 Sax, Gyula257750 #10025.37
61 Kurajica, Bojan257652 #10228.95
62 Razuvaev, Yury S257654 #10331.06
63 Averbakh, Yury L257557 #10754.73
64 Alburt, Lev O257453 #10431.19
65 Osnos, Viacheslav V2574740.3% #11741.27
66 Velimirovic, Dragoljub257250 #10534.47
67 Najdorf, Miguel257157 #10966.54
68 Parma, Bruno257054 #10934.83
69 Adorján, András256851 #10926.58
70 Schmid, Lothar M2567680.1% #11948.47
71 Matanovic, Aleksandar256753 #11146.44
72 Timoshchenko, Gennady256657 #11527.51
73 Nei, Iivo2565640.1% #12144.99
74 Bagirov, Vladimir K2564660.1% #12140.21
75 Lerner, Konstantin Z256260 #12026.67
76 Sosonko, Gennadi256050 #11633.45
77 Kupreichik, Viktor D255856 #12127.33
78 Suetin, Alexey S255853 #11949.95
79 Tseitlin, Mark D2557680.1% #13033.11
80 Csom, István255650 #11936.41
81 Hecht, Hans-Joachim255356 #12637.76
82 Matulovic, Milan255352 #12341.39
83 Sanguinetti, Raúl C255256 #12743.74
84 Hulak, Krunoslav255258 #12925.43
85 Ivkov, Borislav255250 #12442.96
86 Platonov, Igor V2550700.1% #13742.79
87 Radulov, Ivan255057 #12937.81
88 Sigurjónsson, Gudmundur255049 #12529.10
89 Karasev, Vladimir I254859 #13338.37
90 Sakharov, A.254861 #133
91 Grefe, John A254859 #13229.15
92 Kapengut, Albert Z254669 #14032.32
93 Bukic, Enver254560 #13638.91
94 Miles, Anthony J254550 #13021.52
95 Tarjan, James E254451 #13024.69
96 Lombardy, William J254456 #13438.90
97 Torre, Eugenio254252 #13324.98
98 Lutikov, Anatoly S254256 #13643.74
99 Malich, Burkhard G254157 #13739.92
100 Quinteros, Miguel A253951 #13528.84
101 Averkin, Orest N253970 32.68
102 Mukhin, Mikhail A253870 28.70
103 Klovans, Janis253857 41.56
104 Ivanov, Igor V253464 29.81
105 Reshevsky, Samuel H253456 64.92
106 Tringov, Georgy P253455 39.65
107 Rogoff, Kenneth S253453 23.61
108 Kovacevic, Vladimir253361 34.60
109 Filip, Miroslav253360 48.01
110 Commons, Kim S253359 25.27
111 Georgadze, Tamaz V252656 28.97
112 Panchenko, Alexander N252674 23.07
113 Petrosian, Arshak B252459 22.87
114 Antoshin, Vladimir S252264 47.46
115 Rashkovsky, Nukhim N252056 30.54
116 Knezevic, Milorad251954 39.99
117 Grigorian, Karen A251755 29.15
118 Kraidman, Yair251661 43.99
119 Shamkovich, Leonid A251663 53.41
120 Makarichev, Sergey Y251658 22.95
121 Kirov Ivanov, Nino251453 31.14
122 Weinstein, Norman251453 26.07
123 Pachmann, Ludek251456 52.47
124 Schmidt, Wlodzimierz251450 33.56
125 Benko, Pal C251152 48.29
126 Suttles, Duncan251061 30.85
127 Pribyl, Josef251054 29.05
128 Planinc, Albin250951 32.54
129 Sanguinetti, Renato250964 60.52
130 Mariotti, Sergio250854 30.22
131 Faragó, Iván250751 30.58
132 Jansa, Vlastimil250749 33.92
133 Vukcevich, Milan R250762
134 Vitolinš, Alvis250472 30.38
135 Forintos, Gyözö V250254 41.25
136 Bilek, István250253 44.22
137 Maric, Rudolf249967 49.47
138 Knaak, Rainer F249851 23.62
139 Díez del Corral, Jesús249763 43.57
140 Rytov, Boris249767
141 Balinas, Rosendo Carrean249758
142 Kaplan, Julio P249655 26.27
143 Raicevic, Vladimir249655 27.49
144 Lukin, Andrei M249673 28.17
145 Suba, Mihai249658 29.41
146 Calvo Minguez, Ricardo249660 33.02
147 Hartston, William R249551 29.22
148 Marovic, Dražen249555 38.80
149 Rath, Ulrik249566 29.84
150 Stean, Michael F249451 23.16
151 Espig, Lutz249454 27.82
152 Zilberstein, Valery I249272 33.55
153 Podgaets, Mikhail Y249162 29.27
154 Karner, Hillar249165 41.26
155 Rajkovic, Dusan249157 34.37
156 Doroshkievich, Vladimir K249061 38.84
157 Gurgenidze, Bukhuti I249062 42.96
158 Donner, Johannes H249052 49.32
159 Ree, Hans249050 32.13
160 Karaklajic, Nikola249069 50.69
161 Kakageldyev, Amanmurad249074 26.84
162 Vogt, Lothar H249051 24.79
163 Rodriguez, Amador248956 20.15
164 Tatai, Stefano248853 38.61
165 Vukic, Milan248659 33.20
166 Dueball, Juergen248461 31.59
167 Keene, Raymond248150
168 Kestler, Hans-Günter248166 36.88
169 Schweber, Samuel247958 40.29
170 Bleiman, Yaacov247966 29.15
171 Saidy, Anthony F247864 39.46
172 Westerinen, Heikki MJ247751 32.51
173 Ghizdavu, Dumitru247765 27.44
174 Bednarski, Jacek B247755 37.63
175 Katalymov, Boris N247775
176 Spassov, Liuben247659 33.61
177 Padevsky, Nikola B247656 43.42
178 Vadasz, Laszlo247554 28.76
179 Ostojic, Predrag247456 38.69
180 Zuidema, Coenraad247473
181 Johannsson, Ingi Randver247367
182 Honfi, Karoly247252 46.02
183 Soltis, Andrew E247270 29.42
184 Barczay, Laszlo247254 40.69
185 Zhuravliov, Valerij247069 37.88
186 Plachetka, Jan247052 31.70
187 Mohrlok, Dieter247074
188 Ubilava, Elizbar E246972 26.18
189 Spiridonov, Nikola246954 38.67
190 Radev, Nikolai246965 37.86
191 Robatsch, Karl246859 48.05
192 Mnatsakanian, Eduard A246867 37.89
193 Yanofsky, Daniel A246665 51.60
194 Rodriguez, Ruben246566 29.89
195 Castro Rojas, Oscar Humberto246555 23.48
196 Hamann, Svend246564 36.06
197 Ciocaltea, Victor246454 44.79
198 García Gonzáles, Guillermo246354 22.89
199 Zuckerman, Bernard246167 33.58
200 Damjanovic, Mato246055 49.61
201 Martz, William E245859
202 Moe, Mogens245875 32.63
203 Cosulich, Roberto245772
204 Popov, Luben245754 40.76
205 Nemet, Ivan245764 33.55
206 Barcza, Gedeon245767 65.19
207 Sofrevski, Jovan245662 41.20
208 Mednis, Edmar J245653 39.61
209 Nunn, John D M245555 21.52
210 Ghitescu, Theodor245560 42.77
211 Augustin, Josef245558 34.45
212 Peresipkin, Vladimir245476
213 Mikhalchishin, Adrian B245374 21.95
214 Ciric, Dragoljub M245363 40.96
215 Szekely, Peter245359 21.73
216 Jansson, Borje245267 34.63
217 Řgaard, Leif245256 24.82
218 Anikaev, Yury245164 28.34
219 Gaprindashvili, Nona245160 35.49
220 Musil, Vojko245073 31.20
221 Brasket, Curt Justin245074
222 Barle, Janez244961 24.61
223 Bohm, Hans244952 26.79
224 Lederman, Leon244968 29.43
225 Ornstein, Axel244854 24.52
226 Lengyel, Levente244755 43.38
227 Peters, John A244764 25.72
228 Jakobsen, Ole244767 34.03
229 Flesch, Janos244759 43.09
230 Minic, Dragoljub244657 39.65
231 Pritchett, Craig William244661
232 Janoševic, Dragoljub244557 53.31
233 Bisguier, Arthur B244554 47.06
234 Garcia Martinez, Silvino244353 32.32
235 Christiansen, Larry M244262 20.34
236 McKay, Roderick M244271 24.72
237 Schneider, Lars Ake244262
238 Estrin, Yacov B244166 53.53
239 Kuijpers, Franciscus Antonius244158
240 Botterill, George Steven244058
241 Prandstetter, Eduard244059 27.87
242 Pilnik, Herman244071 62.81
243 Gerusel, Mathias244056 38.74
244 Vranesic, Zvonko243973 38.07
245 Pintér, József243955 22.97
246 Langeweg, Kick243752 39.65
247 Liebert, Heinz243755 40.44
248 Rodriguez Vargas, Orestes243755 33.32
249 Szmetan, Jorge243755 26.43
250 Van Wijgerden, Cornelis243762 26.44
251 Pomar Salamanca, Arturo243653 45.16
252 Zwaig, Arne243663
253 Ignatiev, Felix N243663 44.81
254 Haag, Ervin243659 43.80
255 Sahovic, Dragutin243672 36.23
256 Dely, Peter243559 42.32
257 Boey, Josef243572 42.46
258 Portisch, Ferenc243364 37.56
259 Minev, Nikolay N243371 45.81
260 Kochiev, Alexander243175 20.60
261 Garcia, Raimundo243157 40.43
262 Grinberg, Ricardo243161 28.80
263 Ermenkov, Evgenij243156 27.09
264 Hase, Juan Carlos243160
265 Hazai, Laszlo243162 23.38
266 Rukavina, Josip243058 33.92
267 Matera, Salvatore Joseph243058
268 Sydor, Andrzej242957 39.83
269 Deze, Anton242964
270 Biyiasas, Peter242956 25.94
271 Chellstorp, Craig V242868
272 Stoica, Valentin242867 26.71
273 Bertok, Mario242672 47.16
274 Jiménez Zerquera, Eleazar242568 48.35
275 Buljovcic, Ivan242264 39.84
276 Hug, Werner242258 24.14
277 Lechtynsky, Jiri242257 28.93
278 Scholl, Eddie C242272 32.04
279 Brond, Victor242059
280 Cobo Arteaga, Eldis242063
281 Eising, Johannes242058 41.42
282 Poutiainen, Pertti242058
283 Peev, Peicho Chonev241958 36.58
284 Ligterink, Gert241854 26.95
285 Rossetto, Héctor D241858 54.15
286 Adamski, Jan241651 32.96
287 Johannessen, Svein241570 39.04
288 Zichichi, Alvise241266 38.32
289 Hernandez, Roman241152 26.93
290 Webb, Simon241062 27.39
291 Mestrovic, Zvonimir241071 32.04
292 Penrose, Jonathan240969 43.06
293 Haygarth, Michael J240767
294 Van Riemsdijk, Herman C240763 28.18
295 Schiffer, Karl Josef240773
296 Rubinetti, Jorge A240755 31.58
297 Jamroz, Zbigniew240773 42.39
298 Kovacs, Laszlo M240663 38.07
299 Doda, Zbigniew240553 45.69
300 Williams, Arthur Howard240565
301 Bellin, Robert240355 24.34
302 Enklaar, Bertus F240354
303 Hartoch, Robert G240254
304 Uddenfeldt, Dan240273 25.59
305 Sapi, Laszlo240268 41.61
306 Inkiov, Ventzislav240269 20.45
307 Pytel, Krzysztof240155 31.46
308 Mestel, A Jonathan239956 19.63
309 Moehring, Guenther239954 39.93
310 Diesen, Mark C239864
311 Martinovic, Slobodan239873 31.27
312 van Scheltinga, Tjeerd D239669 62.65
313 Cuasnicu, Oscar239558 34.02
314 Sloth, Jorn239470 32.15
315 Basman, Michael J239462 30.62
316 Bronstein, Luis239358 30.41
317 Giterman, Shlomo239369
318 Kagan, Shimon239264 34.57
319 Nicevski, Risto239257 31.34
320 Lehmann, Heinz Dr239163
321 Rantanen, Yrjo A239065 26.52
322 Eslon, Jaan238867 24.66
323 Neckar, Lubomir238859 26.24
324 Sznapik, Aleksander238753 25.72
325 Meduna, Eduard238763 26.14
326 Rajna, George238767 29.71
327 Markland, Peter R238668 25.55
328 Marjanovic, Slavoljub238672 21.82
329 Lukacs, Peter238662 26.31
330 Cuartas, Carlos238664 36.21
331 Denker, Arnold S238568 62.69
332 Vladimirov, Evgeny Y238575 19.78
333 Filipowicz, Andrzej238461 38.47
334 Popov, Nikolay238470
335 Dake, Arthur William238469 66.56
336 Masic, Ljubomir238374 40.32
337 Evans, Larry D238371
338 De la Vega, Hector238362 50.62
339 Karklins, Andrew238368 29.55
340 Garcia, Jo238271
341 Kupka, Slavoj238173 34.31
342 Soler, Alberto238168
343 Gesos, Pavlos238165 31.43
344 Knox, Victor W238169 31.77
345 Visier Segovia, Fernando238161 33.74
346 Goodman, David SC238067
347 Toth, Bela238066 33.53
348 Harandi, Khosro238060 26.16
349 Kinnmark, Ove237961 31.85
350 Horner, Jeff237867 27.18
351 Rosenlund, Thorbjorn237866 25.37
352 Campos Lopez, Mario237775 33.46
353 Wade, Robert Graham237763
354 Debarnot, Roberto237756 29.24
355 Garcia Padron, Jose237763 18.61
356 Bellon Lopez, Juan Manuel237451 26.48
357 Ivanovic, Božidar237362 30.19
358 Rayner, Emmanuel237376 18.39
359 Corden, Martyn J237271
360 Gasic, Bozidar237270 39.05
361 Garcia, Wilfredo237264 21.93
362 Kozma, Julius237157 47.41
363 Pokojowczyk, Jerzy237056 27.69
364 Zinn, Lothar236972 38.62
365 Betancort Curbelo, Juan236970 34.21
366 Onat, Ilhan236770 46.90
367 Butnorius, Algimantas236767 29.94
368 Eley, Brian236772
369 Rodriguez Gonzales, Jesus236668
370 De Bruycker, Bernard236666 35.38
371 Whiteley, Andrew J236669 29.39
372 Silva, Fernando236660 26.24
373 Foguelman, Alberto236469 53.05
374 Speelman, Jonathan S236464 20.08
375 Navarovszky, Laszlo236462 43.58
376 Goldenberg, Richard236472 28.94
377 Iskov, Gert236360 28.26
378 Szymczak, Zbigniew236357 24.82
379 Petran, Pal236258 30.13
380 Barreras, Alberto236268 25.57
381 Lombard, Andre236255 26.12
382 Radashkovich, Itchak236167
383 Jacobsen, Bo235975 27.88
384 Fuller, Maxwell L235864 31.76
385 Ek, Hans235862 48.07
386 Emma, Jaime J235757 38.79
387 Kostro, Jerzy235762 39.77
388 Pelikán, Jorge235672 70.52
389 Alexandria, Nana235665 27.05
390 Banas, Jan235666 29.41
391 Fichtl, Jirí235562 55.71
392 Terres Trois, Francisco235576
393 Tompa, Janos235562 29.50
394 Velikov, Petar235472 25.59
395 Ostermeyer, Peter235368 33.05
396 Czerniak, Moshe235362 66.74
397 Lanc, Alois235359 28.70
398 Rocha, Antonio235266 32.38
399 Akvist, Hakan235263 35.01
400 Tan Lian Ann235059
401 Grabczewski, Romuald234964 44.73
402 Gofshtein, Leonid D234966 23.53
403 Seidler, Aldo234759
404 Nikolic, Stanimir234675 41.76
405 Holm, Sejer234667 37.22
406 De Greif, Boris234663 46.72
407 Trapl, Jindrich234666 34.60
408 Kozlov, Vladimir N234674 26.42
409 Schinzel, Wladyslaw234555 33.44
410 Bernat, Miguel234473 19.12
411 Kristiansen, Erling234464 39.87
412 Quinones, Oscar Carillo234371
413 Anelli, Antonio234371 32.47
414 Dieks, Roy G234365 20.75
415 Pernishki, Luben234273 45.37
416 Levy, David Neil Lawrence234265
417 Camara, Helder234175 39.73
418 Szilágyi, György234161 55.32
419 Pinal, Nelson Borges234169
420 Maciejewski, Andrzej234057 25.31
421 Djuric, Stefan234073 21.26
422 Estevez Morales, Guillermo234055
423 Urzica, Aurel233973 23.96
424 Vogel, Jaap233872 28.58
425 Naranja, Renato233867 36.10
426 Starck, Bodo233772 42.05
427 Pesantes Carbajal, Carlos233664
428 Bönsch, Uwe233555 18.04
429 Boudy, Julio233558 25.39
430 Donchenko, Anatoly G233475 36.16
431 Kolbak, Jens233473 31.74
432 Horvath, Tamas233474 25.02
433 Kushnir, Alla233363
434 Liljedahl, Lennart233170 29.18
435 Jancev, Lazo233163
436 Garcia Palermo, Carlos233160 22.91
437 Bernard, Ryszard232962 32.19
438 Hutchings, Stuart J232871
439 Borngaesser, Rene232869 25.11
440 Wirthensohn, Heinz232769 25.49
441 Fedder, Steen232666 25.38
442 Kuligowski, Adam232660 20.85
443 Jankovec, Ivan232563 38.04
444 Manasterski, Lutoslaw232463 39.72
445 Lebredo, Gerardo232458 26.24
446 Schaufelberger, Heinz232366 28.94
447 Hesse, Peter232266 32.09
448 Gutman, Lev232168 31.10
449 Cardoso, Radolfo Tan232160
450 Hoen, Ragnar232072 36.07
451 Boersma, Paulus A231967 28.29
452 Spacek, Petr231965 22.68
453 Kaiszauri, Konstanty231669 24.02
454 Cafferty, Bernard231667 42.34
455 Osterman, Rudolf231569 30.28
456 Sikora Lerch, Jan231464
457 Gunev, Zlatan231373 31.25
458 Nowak, Ignacy231264 27.80
459 Link, Hugo E231272 23.12
460 Rodriguez Cordoba, Jesus R231170 27.38
461 Van Baarle, C John231066 31.53
462 Wibe, Terje230873 29.07
463 Gereben, Ernö230864 69.37
464 Trois, Francisco RT230864
465 Gruenberg, Hans Ulrich230756 20.81
466 Ardiansyah, Haji230774 24.90
467 Helmertz, Per Inge230776
468 Baumbach, Friedrich230764 41.15
469 Marszalek, Rafal230671 35.91
470 Skrobek, Ryszard230576 25.32
471 Haik, Aldo230571 24.03
472 Medina García, Antonio A230564 57.08
473 Fraguela Gil, Jose Miguel230454
474 Delgado, Alberto230376
475 Verduga, Denis Homero229968
476 Ujtelky, Maximilián229973 61.53
477 Novak, Ivan229868 33.76
478 Andres Mendez, Miguel229867
479 Prochownik, Franciszek229874 41.95
480 Menvielle Lacourrelle, Augusto229660 38.22
481 Dietze, Wolfgang229462 26.37
482 Garcia Conesa, Gregorio229373 41.76
483 Perecz, Laszlo229172 32.36
484 Timman, Ton229173 28.33
485 Bazan, Osvaldo229071 42.05
486 Dobosz, Henryk228964 23.61
487 Thal, Olaf228973 40.87
488 Paehtz, Thomas Sr228860 20.16
489 Frey, Kenneth228764 26.68
490 Tisdall, Jonathan D228772 18.18
491 Savic, Andre228673
492 Day, Lawrence A228573 27.75
493 Mueller, Klaus Uwe228458
494 Drelinkiewicz, Tadeusz228469
495 Diaz, Joaquin C228356 28.32
496 Bielczyk, Jacek228355 23.69
497 Borkowski, Franciszek228264 19.25
498 Fernandez, Juan C228066 25.24
499 Durao, Joaquim227862 46.02
500 Thorsteinsson, Bjorn227666

These ratings, calculated as of October 31, 1976, incorporate all games (against rated opponents) played in the time between November 1, 1975 and October 31, 1976, along with the ratings that were already calculated as of October 31, 1975. 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 October 31, 1976. This represents the player's estimated strength on November 1, 1976.

+/- 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 November 1, 1976. The +/- value represents the standard deviation of that estimate; the player's true strength on November 1, 1976 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 November 1, 1976. 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 October 31, 1976. 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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