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Top 10 active players as of December 31, 1975


Top 500 active players as of December 31, 1975

  #  

Player Rating +/- Best? 75%? Age
1 Karpov, Anatoly E27625045.4% #424.61
2 Korchnoi, Viktor L2708509.1% #1444.77
3 Polugaevsky, Lev A2699496.4% #1741.11
4 Spassky, Boris V2694505.7% #1838.91
5 Petrosian, Tigran V2694495.2% #1846.54
6 Geller, Efim P2688504.2% #2150.83
7 Tal, Mikhail2677492.4% #2439.14
8 Tseshkovsky, Vitaly V2666511.9% #3031.27
9 Vaganian, Rafael A2661501.5% #3224.21
10 Ljubojevic, Ljubomir2658481.0% #3325.16
11 Portisch, Lajos2657491.1% #3438.74
12 Smyslov, Vassily V2655511.1% #3654.77
13 Mecking, Henrique2650541.2% #4023.93
14 Kuzmin, Gennady P2649521.0% #4029.94
15 Smejkal, Jan2645500.6% #4129.77
16 Hübner, Robert2645510.8% #4127.15
17 Krogius, Nikolay V2642672.4% #5045.44
18 Andersson, Ulf2639480.4% #4424.51
19 Hort, Vlastimil2637470.3% #4431.96
20 Gulko, Boris F2636520.5% #4828.89
21 Lein, Anatoly2636651.8% #5344.76
22 Romanishin, Oleg M2632520.4% #5023.97
23 Vasiukov, Evgeny A2631500.3% #5042.82
24 Liberzon, Vladimir M2631550.6% #5238.77
25 Gipslis, Aivars2630550.5% #5338.89
26 Balashov, Yury S2628500.3% #5226.80
27 Larsen, Bent2624510.2% #5440.82
28 Browne, Walter S2623490.2% #5526.97
29 Gligoric, Svetozar2622490.1% #5652.91
30 Dvoretsky, Mark I2621520.2% #5728.06
31 Gufeld, Eduard E2618520.2% #5939.78
32 Beliavsky, Alexander G2617500.1% #5922.04
33 Bronstein, David I2611490.1% #6351.86
34 Kholmov, Ratmir D2608510.1% #6650.63
35 Furman, Semen A2607520.1% #6755.08
36 Ribli, Zoltán260549 #6824.32
37 Olafsson, Fridrik2602510.1% #7140.92
38 Tukmakov, Vladimir B260250 #7129.79
39 Savon, Vladimir A2601500.1% #7135.26
40 Velimirovic, Dragoljub259652 #7733.63
41 Pfleger, Helmut2595550.1% #7932.40
42 Suetin, Alexey S2592530.1% #8049.12
43 Evans, Larry M2590600.1% #8543.77
44 Kudriashov, Anatoly A2589720.6% #9333.70
45 Matanovic, Aleksandar258655 #8645.61
46 Byrne, Robert E258453 #8747.70
47 Chekhov, Valery A2583630.2% #9320.09
48 Dzindzichashvili, Roman Y2582640.2% #9531.65
49 Unzicker, Wolfgang2580570.1% #9250.51
50 Panno, Oscar R257952 #9140.79
51 Gheorghiu, Florin257949 #8931.73
52 Kavalek, Lubomir257849 #8932.39
53 Szabó, László257851 #9158.78
54 Taimanov, Mark E257850 #9049.89
55 Pachmann, Ludek2577590.1% #9651.64
56 Uhlmann, Wolfgang257549 #9240.76
57 Averbakh, Yury L2575590.1% #9853.89
58 Karasev, Vladimir I2572630.1% #10237.54
59 Alburt, Lev O257053 #9930.36
60 Darga, Klaus V2569730.3% #11341.85
61 Timman, Jan H256448 #10224.05
62 Tseitlin, Mark D256064 #11432.27
63 Ivkov, Borislav255951 #10742.13
64 Reshevsky, Samuel H255955 #10964.10
65 Nei, Iivo255957 #11144.17
66 Schmid, Lothar M255960 #11347.64
67 Lutikov, Anatoly S255859 #11442.90
68 Bagirov, Vladimir K255659 #11539.37
69 Matulovic, Milan255450 #11240.56
70 Kurajica, Bojan255358 #11828.13
71 Timoshchenko, Gennady255360 #11826.68
72 Razuvaev, Yury S255253 #11630.22
73 Kapengut, Albert Z255263 #12131.49
74 Tarjan, James E255152 #11623.85
75 Najdorf, Miguel255156 #11865.71
76 Dorfman, Iosif D255056 #11923.66
77 Sax, Gyula255049 #11424.54
78 Parma, Bruno254851 #11734.00
79 Sanguinetti, Raúl C254657 #12442.90
80 Sosonko, Gennadi254450 #12132.62
81 Miles, Anthony J254251 #12320.69
82 Radulov, Ivan254153 #12436.98
83 Adorján, András254151 #12425.75
84 Osnos, Viacheslav V2540710.1% #13640.44
85 Weinstein, Norman253954 #12725.24
86 Bukic, Enver253855 #12938.08
87 Hecht, Hans-Joachim253752 #12736.92
88 Nikolac, Juraj253665 #13743.69
89 Lombardy, William J253552 #13038.07
90 Grefe, John A253555 #13228.32
91 Kovacevic, Vladimir253259 #13833.76
92 Averkin, Orest N253268 #14231.84
93 Díez del Corral, Jesús253165 #14142.73
94 Kirov Ivanov, Nino253155 #13530.31
95 Hulak, Krunoslav253057 #13724.60
96 Klovans, Janis252953 #13540.73
97 Rashkovsky, Nukhim N252959 #13929.70
98 Mukhin, Mikhail A252962 #14127.86
99 Platonov, Igor V252866 #14441.95
100 Malich, Burkhard G252854 #13739.09
101 Filip, Miroslav252864 47.18
102 Panchenko, Alexander N252565 22.24
103 Commons, Kim S252455 24.44
104 Benko, Pal C252351 47.46
105 Marovic, Dražen252154 37.96
106 Quinteros, Miguel A252150 28.01
107 Csom, István251850 35.58
108 Grigorian, Karen A251854 28.32
109 Palatnik, Semen A251771 25.76
110 Georgadze, Tamaz V251661 28.14
111 Shereshevsky, Mikhail I251574 25.69
112 Sveshnikov, Evgeny E251362 25.88
113 Ciric, Dragoljub M250972 40.13
114 Ivanov, Igor V250862 28.97
115 Suttles, Duncan250856 30.03
116 Torre, Eugenio250752 24.16
117 Antoshin, Vladimir S250768 46.63
118 Zaitsev, Igor A250762 37.59
119 Knezevic, Milorad250658 39.17
120 Tringov, Georgy P250555 38.82
121 Kupreichik, Viktor D250455 26.49
122 Nemet, Ivan250473 32.71
123 Rogoff, Kenneth S250355 22.77
124 Bobotsov, Milko G250268 44.25
125 Jansa, Vlastimil250148 33.09
126 Shamkovich, Leonid A250058 52.58
127 O'Kelly de Galway, Albéric250069 64.62
128 Makarichev, Sergey Y249857 22.12
129 Gurgenidze, Bukhuti I249762 42.13
130 Donner, Johannes H249751 48.48
131 Faibisovich, Vadim Z249575 31.65
132 Vukcevich, Milan R249465
133 Planinc, Albin249449 31.70
134 Lukin, Andrei M249366 27.34
135 Forintos, Gyözö V249250 40.42
136 Schweber, Samuel249157 39.46
137 Kraidman, Yair249060 43.16
138 Antunac, Goran248867 30.71
139 Grigorian, Levon Ashotovich248873
140 Spiridonov, Nikola248857 37.84
141 Rodriguez, Ruben248859 29.07
142 Westerinen, Heikki MJ248851 31.68
143 Karner, Hillar248759 40.43
144 Rytov, Boris248760
145 Ciocaltea, Victor248651 43.95
146 Sigurjónsson, Gudmundur248650 28.27
147 Mišta, Ladislav248671 32.17
148 Padevsky, Nikola B248656 42.59
149 Zilberstein, Valery I248564 32.72
150 Ubilava, Elizbar E248568 25.34
151 Kakageldyev, Amanmurad248475 26.01
152 Knaak, Rainer F248450 22.79
153 Rodriguez, Amador248363 19.31
154 Keene, Raymond248349
155 Karaklajic, Nikola248262 49.85
156 Bilek, István247951 43.39
157 Honfi, Karoly247955 45.18
158 Cvetkovic, Srdjan247975 29.84
159 Mohrlok, Dieter247870
160 Murey, Yakov247871 34.41
161 Ghizdavu, Dumitru247759 26.61
162 Kestler, Hans-Günter247759 36.05
163 Podgaets, Mikhail Y247758 28.44
164 Vukic, Milan247756 32.37
165 Kaplan, Julio P247654 25.43
166 Schmidt, Wlodzimierz247549 32.72
167 Espig, Lutz247553 26.98
168 Robatsch, Karl247357 47.21
169 Dueball, Juergen247356 30.76
170 Torán Albero, Román247270 44.23
171 Faragó, Iván247051 29.75
172 Anikaev, Yury246962 27.51
173 Saidy, Anthony F246858 38.62
174 Barczay, Laszlo246553 39.85
175 Doroshkievich, Vladimir K246559 38.01
176 Soltis, Andrew E246562 28.59
177 Pribyl, Josef246453 28.22
178 Raicevic, Vladimir246454 26.66
179 Zhuravliov, Valerij246467 37.05
180 Zuidema, Coenraad246365
181 Hartston, William R246351 28.38
182 Maric, Rudolf246375 48.63
183 Moe, Mogens246367 31.80
184 Plachetka, Jan246252 30.86
185 Ostojic, Predrag246254 37.85
186 Tatai, Stefano246253 37.77
187 Calvo Minguez, Ricardo246260 32.19
188 Radev, Nikolai246165 37.03
189 Mariotti, Sergio246052 29.39
190 Řgaard, Leif245855 23.98
191 Cosulich, Roberto245863
192 Hamann, Svend245757 35.23
193 Yanofsky, Daniel A245658 50.76
194 Estrin, Yacov B245567 52.69
195 Damjanovic, Mato245553 48.77
196 García Gonzáles, Guillermo245453 22.06
197 Minic, Dragoljub245354 38.82
198 Balinas, Rosendo Carrean245363
199 Mikenas, Vladas245374 65.70
200 Ree, Hans245250 31.29
201 Suba, Mihai245271 28.58
202 Zuckerman, Bernard245260 32.75
203 Biyiasas, Peter245058 25.12
204 Pomar Salamanca, Arturo245052 44.33
205 Martz, William E244955
206 Doda, Zbigniew244853 44.85
207 Bisguier, Arthur B244752 46.23
208 Ornstein, Axel244752 23.69
209 Stean, Michael F244651 22.32
210 Barcza, Gedeon244660 64.36
211 Janoševic, Dragoljub244455 52.48
212 Popov, Luben244352 39.92
213 Hennings, Artur244361 35.47
214 Pritchett, Craig William244355
215 Ghitescu, Theodor244357 41.93
216 Musil, Vojko244164 30.37
217 Sliwa, Bogdan244172 53.90
218 Vogt, Lothar H244150 23.95
219 Piasetski, Leon David244070
220 Barle, Janez244056 23.78
221 Rodriguez Vargas, Orestes243956 32.49
222 Bednarski, Jacek B243954 36.80
223 Jansson, Borje243960 33.80
224 Hase, Juan Carlos243868
225 Martinovic, Slobodan243874 30.43
226 Lengyel, Levente243751 42.55
227 Capelan, Guenter243667 43.43
228 Mednis, Edmar J243652 38.77
229 Poutiainen, Pertti243556
230 Garcia Martinez, Silvino243550 31.49
231 Haag, Ervin243563 42.96
232 Peters, John A243464 24.88
233 Nunn, John D M243353 20.68
234 Szmetan, Jorge243355 25.60
235 Vranesic, Zvonko243265 37.24
236 Rukavina, Josip243255 33.09
237 Kuijpers, Franciscus Antonius243256
238 Enklaar, Bertus F243051
239 Ermenkov, Evgenij242955 26.26
240 Pilnik, Herman242963 61.97
241 Krnic, Zdenko242872 28.25
242 Kozlov, Vladimir N242872 25.58
243 Bohm, Hans242752 25.95
244 Hernandez, Roman242753 26.11
245 Atanasov, Petko242769 27.96
246 Jiménez Zerquera, Eleazar242668 47.52
247 Castro Rojas, Oscar Humberto242565 22.65
248 Minev, Nikolay N242563 44.97
249 Boey, Josef242463 41.62
250 Schiffer, Karl Josef242470
251 Dely, Peter242454 41.49
252 Ruderfer, Mark B242372
253 Eising, Johannes242355 40.59
254 Mochalov, Evgeny V242275 24.17
255 Augustin, Josef242157 33.62
256 Liebert, Heinz242152 39.60
257 Amos, Bruce M242172 29.00
258 Zilberman, Nathan R242168 35.66
259 Chellstorp, Craig V242061
260 Gilden, Lawrence C241971
261 Flesch, Janos241958 42.25
262 Portisch, Ferenc241957 36.73
263 Clarke, Peter H241870
264 Andersen, Borge241771 41.78
265 Gerusel, Mathias241654 37.90
266 Scholl, Eddie C241664 31.20
267 Hug, Werner241455 23.31
268 Jakobsen, Ole241467 33.20
269 Gaprindashvili, Nona241468 34.66
270 Langeweg, Kick241352 38.82
271 Hazai, Laszlo241360 22.55
272 Grinberg, Ricardo241363 27.96
273 Rossetto, Héctor D241355 53.31
274 Buljovcic, Ivan241264 39.01
275 Botterill, George Steven241257
276 Webb, Simon241156 26.56
277 Pintér, József241154 22.14
278 Johannessen, Svein241062 38.20
279 Bellon Lopez, Juan Manuel240953 25.65
280 Szekely, Peter240864 20.89
281 Sydor, Andrzej240857 38.99
282 Partos, Charles240867 39.39
283 Foguelman, Alberto240669 52.22
284 Matera, Salvatore Joseph240662
285 Lehmann, Heinz Dr240363
286 Williams, Arthur Howard240360
287 Kovacs, Laszlo M240258 37.24
288 Vadasz, Laszlo240152 27.92
289 Sinclair, Ian240173
290 Ingerslev, Age240074 42.22
291 Lechtynsky, Jiri240056 28.10
292 Shmit, Anatoly240074 34.33
293 Seret, Jean Luc239970
294 Rath, Ulrik239969 29.02
295 Cobo Arteaga, Eldis239860
296 Uddenfeldt, Dan239866 24.76
297 Garcia, Raimundo239856 39.59
298 Penrose, Jonathan239862 42.23
299 Jankovec, Ivan239771 37.20
300 Rajkovic, Dusan239759 33.54
301 Ligterink, Gert239756 26.12
302 Mestrovic, Zvonimir239663 31.20
303 Littlewood, John Eric239671
304 Sapi, Laszlo239674 40.78
305 Myagmarsuren, Lhamsuren239573 37.87
306 McKay, Roderick M239465 23.88
307 Cuéllar Gacharná, Miguel239472 59.12
308 Mikhalchishin, Adrian B239375 21.12
309 Macles, Jacques239373 30.48
310 Bronstein, Luis238961 29.58
311 Haygarth, Michael J238966
312 Pytel, Krzysztof238952 30.63
313 Cuasnicu, Oscar238958 33.19
314 Zwaig, Arne238960
315 Fedorov, Vladislav238876 22.44
316 Neckar, Lubomir238858 25.41
317 Denker, Arnold S238865 61.85
318 Deze, Anton238862
319 Adamski, Jan238652 32.14
320 Garcia, Wilfredo238564 21.11
321 Butnorius, Algimantas238564 29.11
322 Hartoch, Robert G238553
323 Ungureanu, Emil238471 39.16
324 van Scheltinga, Tjeerd D238462 61.82
325 Peev, Peicho Chonev238457 35.75
326 Diesen, Mark C238370
327 Rajna, George238360 28.87
328 Czerniak, Moshe238362 65.90
329 Stoica, Valentin238273 25.87
330 Rantanen, Yrjo A238258 25.69
331 Kinnmark, Ove238259 31.02
332 Schneider, Lars Ake238263
333 Spassov, Liuben238160 32.77
334 Rubinetti, Jorge A238053 30.75
335 Mestel, A Jonathan237957 18.80
336 Sznapik, Aleksander237854 24.88
337 Filipowicz, Andrzej237856 37.63
338 Pavlov, Mircea237769 38.30
339 Vladimirov, Evgeny Y237769 18.94
340 Bordonada, Glenn237672
341 Bohosjan, Sarkis237668 34.76
342 Kostro, Jerzy237459 38.93
343 Lukacs, Peter237356 25.48
344 Karklins, Andrew237261 28.71
345 Gasic, Bozidar237262 38.22
346 Kupka, Slavoj237264 33.48
347 Kozma, Julius237161 46.58
348 Bellin, Robert237157 23.50
349 Blatny, Frantisek237074 42.75
350 Basman, Michael J237060 29.79
351 Iskov, Gert237060 27.43
352 Nicevski, Risto237057 30.51
353 Markland, Peter R237061 24.72
354 Cuartas, Carlos236963 35.38
355 Kushnir, Alla236863
356 Schoeneberg, Manfred236774 29.48
357 Perkins, Alan H236668 26.78
358 Hindle, Owen M236668 35.80
359 Masic, Ljubomir236667 39.49
360 Visier Segovia, Fernando236658 32.90
361 Tseitlin, Mikhail S236576 28.54
362 Zichichi, Alvise236569 37.49
363 Kunsztowicz, Uwe236573 31.95
364 Wade, Robert Graham236460
365 De la Vega, Hector236358 49.79
366 Dake, Arthur William236367 65.73
367 Fuller, Maxwell L236360 30.92
368 Toth, Bela236360 32.70
369 Schaufelberger, Heinz236271 28.12
370 Emma, Jaime J236258 37.95
371 Gesos, Pavlos236161 30.60
372 Prandstetter, Eduard236075 27.04
373 Kagan, Shimon236066 33.73
374 Balcerowski, Witold236068 40.39
375 Campos Lopez, Mario235866 32.63
376 Garcia, Horacio235774
377 Corden, Martyn J235763
378 Braun, Gottfried235773 42.50
379 Zinn, Lothar235763 37.78
380 Brond, Victor235662
381 Van Riemsdijk, Herman C235671 27.35
382 Boudy, Julio235563 24.55
383 Bouaziz, Slim235575 25.71
384 Horner, Jeff235463 26.35
385 Rodriguez Gonzales, Jesus235461
386 Ekstroem, Roland235476 19.61
387 Wirthensohn, Heinz235369 24.66
388 Popov, Nikolay235371
389 Pesantes Carbajal, Carlos235263
390 Pavlenko, Oleg235272
391 Ek, Hans235156 47.23
392 Szymczak, Zbigniew235061 23.98
393 Beyen, Roland234972 43.73
394 Ghinda, Mihail Viorel234969 26.43
395 Velikov, Petar234964 24.75
396 Lanc, Alois234859 27.86
397 Pelikán, Jorge234764 69.69
398 Banas, Jan234659 28.58
399 Eley, Brian234665
400 Akvist, Hakan234461 34.18
401 Vogel, Jaap234464 27.75
402 Nikolic, Stanimir234368 40.92
403 Kolbak, Jens234374 30.90
404 Pinal, Nelson Borges234371
405 Van Baarle, C John234367 30.70
406 Speelman, Jonathan S234363 19.25
407 Yepez Obando, Olavo234271
408 Quinones, Oscar Carillo234273
409 Holm, Sejer234160 36.39
410 Grabczewski, Romuald234058 43.89
411 Ostermeyer, Peter233961 32.22
412 Pietrusiak, Bogdan233968 42.46
413 Maciejewski, Andrzej233861 24.48
414 Szilágyi, György233864 54.49
415 Fichtl, Jirí233861 54.87
416 Lombard, Andre233856 25.28
417 Kristiansen, Erling233758 39.04
418 Dieks, Roy G233758 19.91
419 Knox, Victor W233667 30.93
420 Kaufman, Larry C233672 28.13
421 Petran, Pal233661 29.29
422 Urzica, Aurel233664 23.14
423 Borngaesser, Rene233662 24.27
424 Baumbach, Friedrich233567 40.31
425 Poulsson, Eivind233576 33.07
426 Whiteley, Andrew J233565 28.56
427 Moehring, Guenther233553 39.10
428 Tompa, Janos233556 28.67
429 Schinzel, Wladyslaw233459 32.61
430 Soler, Alberto233169
431 Allan, Denis233172 31.11
432 Barreras, Alberto233072 24.74
433 Paehtz, Thomas Sr233059 19.32
434 Horvath, Tamas233065 24.19
435 Poch, Cesar Guillermo233071
436 Kluger, Guyla233071 61.95
437 Ludgate, Alan232974 30.33
438 Levy, David Neil Lawrence232859
439 Camara, Helder232866 38.89
440 Hutchings, Stuart J232763
441 Kaiszauri, Konstanty232664 23.18
442 Beil, Zdenek232472 22.37
443 Jacobsen, Bo232472 27.05
444 Janetschek, Karl232473 35.70
445 Cooper, John Grantley232374
446 Neukirch, Detlef232273 35.39
447 Naranja, Renato232261 35.27
448 Liljedahl, Lennart232162 28.34
449 Barnes, Craig N232173
450 Grigorov, Jordan N232073 22.06
451 Georgiev, Krum232073 17.60
452 Starck, Bodo232064 41.22
453 Casas, Fernando232069 49.36
454 Silva, Fernando231967 25.41
455 Nagy, Ervin231876 30.42
456 Menvielle Lacourrelle, Augusto231766 37.38
457 Meduna, Eduard231773 25.30
458 Ljungqvist, Lennart231575
459 Osterman, Rudolf231561 29.44
460 Alexandria, Nana231564 26.22
461 Rosenlund, Thorbjorn231472 24.54
462 Van Geet, Dirk Daniel231373 43.83
463 Bönsch, Uwe231355 17.21
464 Garcia, H.231269
465 Cibulka, Vladimir231270 34.16
466 Hansson, Dan231275 23.56
467 Franzen, Jozef231068 29.90
468 Lebredo, Gerardo230858 25.41
469 Debarnot, Roberto230856 28.40
470 Tan Lian Ann230875
471 Cafferty, Bernard230860 41.51
472 De Greif, Boris230761 45.88
473 Estevez Morales, Guillermo230754
474 Helmertz, Per Inge230469
475 Wibe, Terje230365 28.23
476 Cardoso, Radolfo Tan230355
477 Gutman, Lev230270 30.26
478 Hoen, Ragnar230164 35.24
479 Diaz, Joaquin C230060 27.49
480 Ardiansyah, Haji229966 24.07
481 Hausner, Ivan229873 23.71
482 Day, Lawrence A229864 26.91
483 Berry, Jonathan229865 22.30
484 Brondum, Eric229775 34.04
485 Medina García, Antonio A229658 56.25
486 Mueller, Klaus Uwe229655
487 Gereben, Ernö229566 68.54
488 Zoltek, Tadeusz229468 38.33
489 Gross, Stefan229376 26.34
490 Ujtelky, Maximilián229365 60.70
491 Vinje Gulbrandsen, Arne229167
492 Gulbrandsen, Arne Vinje229169
493 Antonov, Vladimir229169 26.14
494 Novak, Ivan229060 32.92
495 Bengtsson, Bo228974 28.34
496 Thal, Olaf228865 40.05
497 Marszalek, Rafal228773 35.09
498 Orev, Petar228771 41.57
499 Perecz, Laszlo228764 31.52
500 Bachtiar, Arovah228669 41.77

These ratings, calculated as of December 31, 1975, incorporate all games (against rated opponents) played in the time between January 1, 1975 and December 31, 1975, along with the ratings that were already calculated as of December 31, 1974. 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 December 31, 1975. This represents the player's estimated strength on January 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 January 1, 1976. The +/- value represents the standard deviation of that estimate; the player's true strength on January 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 January 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 December 31, 1975. 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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