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Top 10 active players as of October 31, 1970

  #  

Player Rating +/-
1 Fischer, Robert J286150
2 Spassky, Boris V274850
3 Larsen, Bent269948
4 Botvinnik, Mikhail M269854
5 Keres, Paul269451
6 Portisch, Lajos268949
7 Polugaevsky, Lev A268950
8 Petrosian, Tigran V268849
9 Korchnoi, Viktor L268149
10 Taimanov, Mark E268050

About these ratings

Top 500 active players as of October 31, 1970

  #  

Player Rating +/- Best? 75%? Age
1 Fischer, Robert J28615090.8% #127.64
2 Spassky, Boris V2748504.6% #633.75
3 Larsen, Bent2699480.5% #1535.66
4 Botvinnik, Mikhail M2698540.9% #1659.20
5 Keres, Paul2694510.6% #1754.81
6 Portisch, Lajos2689490.4% #1733.57
7 Polugaevsky, Lev A2689500.4% #1835.94
8 Petrosian, Tigran V2688490.3% #1841.37
9 Korchnoi, Viktor L2681490.3% #2039.61
10 Taimanov, Mark E2680500.2% #2044.73
11 Tal, Mikhail2675510.3% #2233.97
12 Smyslov, Vassily V2673500.2% #2349.60
13 Stein, Leonid Z2663510.1% #2635.96
14 Geller, Efim P2663490.1% #2645.66
15 Hort, Vlastimil2661470.1% #2626.80
16 Bronstein, David I2649510.1% #3246.70
17 Suetin, Alexey S2641530.1% #3643.95
18 Savon, Vladimir A2637550.1% #3830.10
19 Gligoric, Svetozar262947 #4047.74
20 Najdorf, Miguel262251 #4560.54
21 Krogius, Nikolay V262060 #5040.27
22 Kholmov, Ratmir D261552 #5045.47
23 Reshevsky, Samuel H261350 #5058.92
24 Uhlmann, Wolfgang261049 #5135.59
25 Vasiukov, Evgeny A260552 #5637.65
26 Gipslis, Aivars260454 #5733.73
27 Furman, Semen A260157 #6049.91
28 Darga, Klaus V259957 #6236.69
29 Andersson, Ulf259652 #6119.34
30 Olafsson, Fridrik259454 #6435.76
31 Schmid, Lothar M259455 #6542.47
32 Tukmakov, Vladimir B259154 #6624.63
33 Osnos, Viacheslav V259161 #7035.27
34 Liberzon, Vladimir M258853 #6833.61
35 Ivkov, Borislav258747 #6536.96
36 Benko, Pal C258548 #6842.29
37 Gheorghiu, Florin258449 #6826.57
38 Unzicker, Wolfgang258450 #6945.35
39 Matulovic, Milan258049 #7235.39
40 Sanguinetti, Raúl C257862 #7937.74
41 Panno, Oscar R257850 #7335.62
42 Smejkal, Jan257752 #7524.61
43 Gurgenidze, Bukhuti I257561 #8236.96
44 Kuzmin, Gennady P257261 #8424.78
45 Gufeld, Eduard E256653 #8434.62
46 Dzindzichashvili, Roman Y256670 #9426.49
47 Evans, Larry M256657 #8738.61
48 Khasin, Abram I256470 #9747.71
49 Platonov, Igor V256256 #9036.79
50 Averbakh, Yury L256258 #9148.73
51 Zaitsev, Alexander N256053 #9035.38
52 Pachmann, Ludek255958 #9446.47
53 Kavalek, Lubomir255949 #8927.23
54 Byrne, Robert E255952 #9042.53
55 Lutikov, Anatoly S255556 #9537.74
56 Gulko, Boris F255464 #10223.73
57 Averkin, Orest N255263 #10326.68
58 Lombardy, William J254954 #10132.90
59 Hübner, Robert254956 #10121.98
60 Zaitsev, Igor A254755 #10232.43
61 Filip, Miroslav254752 #10142.01
62 Antoshin, Vladimir S254653 #10241.46
63 Kurajica, Bojan254650 #10122.95
64 Matanovic, Aleksandar254549 #10140.44
65 Parma, Bruno254548 #10028.83
66 Tseshkovsky, Vitaly V254261 #11026.10
67 Browne, Walter S254151 #10621.81
68 Bagirov, Vladimir K253961 #11334.21
69 Podgaets, Mikhail Y253964 #11523.27
70 Karpov, Anatoly E253859 #11319.44
71 Tringov, Georgy P253850 #10833.65
72 Kotov, Alexander A253769 #12057.22
73 Nei, Iivo253564 #12038.99
74 Lein, Anatoly253560 #11739.59
75 Pfleger, Helmut253463 #11827.23
76 Mecking, Henrique253454 #11418.77
77 Shamkovich, Leonid A253353 #11447.41
78 Sakharov, Yury N253364 #12048.12
79 Ciric, Dragoljub M253352 #11334.96
80 Velimirovic, Dragoljub253160 #12028.47
81 Donner, Johannes H253048 #11443.32
82 Planinc, Albin252955 #11926.54
83 Addison, William G252358 #12536.92
84 Klovans, Janis252269 #13335.56
85 Karaklajic, Nikola252071 #13744.69
86 Kovacevic, Vladimir251858 #13028.60
87 Penrose, Jonathan251756 #13037.06
88 Szabó, László251749 #12553.62
89 Lengyel, Levente251650 #12637.38
90 Bilek, István251549 #12738.22
91 Kaplan, Julio P251559 #13420.27
92 Balashov, Yury S251457 #13321.63
93 Pomar Salamanca, Arturo251451 #12939.16
94 Padevsky, Nikola B251151 #13237.42
95 Bolbochán, Julio251162 #14050.61
96 Minic, Dragoljub250950 #13333.65
97 Kupreichik, Viktor D250856 #13721.33
98 Forintos, Gyözö V250750 #13535.25
99 Kapengut, Albert Z250670 #14726.32
100 Mednis, Edmar J250568 #14633.61
101 Saidy, Anthony F250556 33.46
102 Bobotsov, Milko G250350 39.09
103 Byrne, Donald250258 40.38
104 Marovic, Dražen250153 32.80
105 Rakic, Tomislav249969 35.96
106 Barczay, Laszlo249748 34.69
107 Bukic, Enver249654 32.91
108 Damjanovic, Mato249649 43.61
109 Gusev, Yury S249567 49.10
110 Hecht, Hans-Joachim249452 31.76
111 Robatsch, Karl249458 42.05
112 Barcza, Gedeon249351 59.19
113 Schmidt, Wlodzimierz249353 27.56
114 Bogdanovic, Rajko249256 38.95
115 Yanofsky, Daniel A249258 45.60
116 Etruk, Rein T249070 32.61
117 Zuckerman, Bernard248958 27.58
118 Csom, István248850 30.41
119 Bisguier, Arthur B248854 41.06
120 Nikolaevsky, Yuri V248769
121 Eliskases, Erich G248571 57.71
122 Jansa, Vlastimil248450 27.92
123 Rossolimo, Nicolas248357 60.67
124 Radulov, Ivan248352 31.81
125 Malich, Burkhard G248052 33.92
126 Kraidman, Yair248060 37.99
127 Johannsson, Ingi Randver247871
128 Jansson, Borje247755 28.63
129 Dely, Peter247752 36.32
130 Marangunic, Srdjan247466 26.99
131 Ciocaltea, Victor247451 38.79
132 Ghitescu, Theodor247352 36.77
133 Adorján, András247352 20.58
134 Balinas, Rosendo Carrean247170
135 Suttles, Duncan247155 24.85
136 Minev, Nikolay N247061 39.81
137 Lengyel, Laszlo246961 26.31
138 Teschner, Rudolf246764 48.71
139 Udovcic, Mijo246758 50.14
140 Pribyl, Josef246660 23.05
141 Zhukhovitsky, Samuil M246659 53.88
142 Keene, Raymond246657
143 Díez del Corral, Jesús246654 37.57
144 Hamann, Svend246459 30.06
145 Mišta, Ladislav246257 26.99
146 O'Kelly de Galway, Albéric246251 59.45
147 Flesch, Janos246159 37.09
148 Fuchs, Reinhart246155 36.09
149 Prameshuber, Aleksander246060
150 Haag, Ervin246059 37.80
151 Geller, Uzi245964 39.76
152 Maric, Rudolf245958 43.47
153 Razuvaev, Yury S245873 25.06
154 Musil, Vojko245770 25.20
155 Bertok, Mario245652 41.16
156 Jiménez Zerquera, Eleazar245454 42.35
157 Rossetto, Héctor D245452 48.15
158 Puc, Stojan245365 49.56
159 Johansson, Martin245361 52.23
160 Moe, Mogens245369 26.63
161 Pilnik, Herman245367 56.81
162 Bouwmeester, Henk B245161 41.12
163 Garcia, Raimundo245053 34.43
164 Westerinen, Heikki MJ245050 26.51
165 Sigurjónsson, Gudmundur244954 23.10
166 Pietzsch, Wolfgang W244956 39.85
167 Guimard, Carlos E244962 57.57
168 Mohrlok, Dieter244862
169 Janoševic, Dragoljub244850 47.31
170 Maeder, Karl Heinz244757
171 Schweber, Samuel244753 34.29
172 Cortlever, Nicolaas244756 55.38
173 Soltis, Andrew E244565 23.42
174 Rodriguez, Ruben244567 23.89
175 Nikolic, Stanimir244459 35.76
176 Smederevac, Petar244457 48.18
177 Emma, Jaime J244469 32.79
178 Tatai, Stefano244451 32.61
179 Cosulich, Roberto244257
180 Doda, Zbigniew243951 39.69
181 Dueball, Juergen243959 25.59
182 Johannessen, Svein243859 33.04
183 Prins, Lodewijk243665 57.76
184 Tarve, Udo243674
185 Doroshkievich, Vladimir K243671 32.84
186 Grigorian, Karen A243572 23.15
187 Arulaid, Alexander243574
188 Brinck Claussen, Bjorn243466
189 Rubinetti, Jorge A243453 25.58
190 Lehmann, Heinz Dr243455
191 Kuijpers, Franciscus Antonius243355
192 Ojanen, Kaarle Sakari243367
193 Kovacs, Miklos243264 38.29
194 Kluger, Guyla243260 56.79
195 Soos, Bela243066 40.65
196 McKay, Roderick M242971 18.72
197 Quinteros, Miguel A242851 22.84
198 Torre, Eugenio242774 18.98
199 Bachtiar, Arovah242772 36.60
200 Popov, Luben242654 34.76
201 Ostojic, Predrag242652 32.69
202 Nowak, Erwin242565
203 Stoppel, Franz242466 39.08
204 Pedersen, Karl242467 30.09
205 Vukic, Milan242457 27.20
206 Kupka, Slavoj242258 28.31
207 Torán Albero, Román242152 39.06
208 Hartston, William R242160 23.22
209 Messing, Hrvoje242168 30.26
210 Cherepkov, Alexander V242172 50.00
211 Honfi, Karoly242052 40.02
212 Kestler, Hans-Günter242064 30.88
213 Liebert, Heinz242055 34.44
214 Sokolov, Vladimir242063 37.17
215 Keller, Dieter241967 34.28
216 Radovici, Corvin241959 38.86
217 Cuéllar Gacharná, Miguel241956 53.95
218 Antunac, Goran241865 25.54
219 Christoph, Manfred241869 39.42
220 Hernandez, Roman241865 20.93
221 Spiridonov, Nikola241856 32.67
222 Zwaig, Arne241764
223 Drimer, Dolfi241753 36.04
224 Kottnauer, Cenek241668 60.69
225 Bednarski, Jacek B241652 31.63
226 Medina García, Antonio A241649 51.08
227 Myagmarsuren, Lhamsuren241558 32.70
228 van Scheltinga, Tjeerd D241456 56.65
229 Hennings, Artur241451 30.30
230 Amos, Bruce M241364 23.83
231 Vranesic, Zvonko241261 32.07
232 Scholl, Eddie C241252 26.04
233 Kostro, Jerzy241251 33.77
234 Golz, Werner241258
235 Faibisovich, Vadim Z241072 26.48
236 Sofrevski, Jovan241059 35.20
237 Kolarov, Atanas S240957 36.66
238 Timman, Jan H240957 18.87
239 Ree, Hans240850 26.13
240 Gerusel, Mathias240855 32.74
241 Bhend, Edwin240862 39.14
242 Besser, Hans240875 35.74
243 Langeweg, Kick240851 33.65
244 Dueckstein, Andreas240758 43.24
245 Mititelu, Gheorghe240774 36.00
246 Gaprindashvili, Nona240668 29.49
247 Capelan, Guenter240673 38.26
248 Basman, Michael J240673 24.62
249 Kagan, Shimon240459 28.57
250 Augustin, Josef240463 28.45
251 Kozma, Julius240456 41.41
252 Jakobsen, Ole240457 28.03
253 Navarovszky, Laszlo240363 37.58
254 Peev, Peicho Chonev240266 30.58
255 Peretz, Malkiel240061 27.39
256 Szily, József240067 57.08
257 Baumbach, Friedrich240059 35.15
258 Zinn, Lothar239955 32.62
259 Knezevic, Milorad239968 33.99
260 Vaganian, Rafael A239868 19.04
261 Tompa, Janos239763 23.50
262 Cobo Arteaga, Eldis239555
263 Adamski, Jan239552 26.96
264 Cvetkovic, Srdjan239467 24.67
265 Klundt, Klaus239459 28.84
266 Kinnmark, Ove239359 25.85
267 Porat, Yosef239167 61.40
268 Glauser, Hansruedi239071 25.34
269 Siaperas, Triantafyllos239059 38.25
270 Mihaljcisin, Mihajlo239058 37.69
271 Böök, Eero238973 60.73
272 Murey, Yakov238973 29.24
273 Rodriguez, Jo238967
274 Ljubojevic, Ljubomir238761 19.99
275 Schiffer, Karl Josef238764
276 Trapl, Jindrich238674 28.60
277 Sax, Gyula238665 19.37
278 Clarke, Peter H238658
279 Thorbergsson, Freysteinn238663
280 Ek, Hans238565 42.07
281 Stupica, Janesz238464
282 Patterson, Nicholas J238474
283 Lewi, Jerzy238357
284 Van Geet, Dirk Daniel238357 38.66
285 Calvo Minguez, Ricardo238356 27.02
286 Lechtynsky, Jiri238164 22.93
287 Zuidema, Coenraad238155
288 Kovacs, Laszlo M238052 32.07
289 Krabbe, Tim238065 27.55
290 Naranja, Renato238058 30.10
291 Rodriguez Gonzales, Jesus238075
292 Pelikán, Jorge237958 64.52
293 Pogats, Jozsef237974 42.31
294 Kupper, Josef237967 38.64
295 Bukal, Vladimir Sr237960 30.99
296 Belkadi, Ridha237966 45.52
297 Ungureanu, Emil237867 33.99
298 Corden, Martyn J237661
299 Szilágyi, György237558 49.32
300 Camara, Helder237558 33.73
301 Littlewood, John Eric237567
302 Eising, Johannes237475 35.42
303 Espig, Lutz237354 21.82
304 Filipowicz, Andrzej237255 32.47
305 Ivanovic, Božidar237274 24.19
306 Kozomara, Vladimir237174
307 Bronstein, Luis237066 24.41
308 Lee, Peter N237074
309 Janata, Michael236966
310 Levy, David Neil Lawrence236756
311 Palermo, Vicente236668 38.63
312 Ekenberg, Bengt236666
313 Kinzel, Anton236567
314 Czerniak, Moshe236556 60.74
315 Boey, Josef236562 36.46
316 Nilsson, Zandor236563
317 Witkowski, Stefan236559 39.09
318 Van Baarle, C John236463 25.53
319 Grabczewski, Romuald236458 38.73
320 Blatny, Frantisek236460 37.58
321 Rocha, Antonio236362 26.38
322 Spassov, Liuben236273 27.61
323 Blau, Max236274 51.86
324 Liptay, Laszlo235970 33.33
325 Nicevski, Risto235853 25.34
326 Schoeneberg, Manfred235755 24.32
327 Polgar, Istvan235559 25.92
328 Matkowski, Wiktor235576
329 Fichtl, Jirí235368 49.71
330 Foguelman, Alberto235365 47.05
331 Plachetka, Jan235357 25.70
332 Balcerowski, Witold235256 35.22
333 Kerkhoff, Leo J235174 25.96
334 Wotulo, Max235172 38.24
335 Cebalo, Mišo235173 25.73
336 Toth, Bela235063 27.53
337 Olsson, Ake234957 36.49
338 Moehring, Guenther234959 33.93
339 Rogoff, Kenneth S234965 17.61
340 Ujtumen, Tudev234862 31.18
341 Masic, Ljubomir234860 34.32
342 Holaszek, Hans234663
343 Brond, Victor234566
344 Hartoch, Robert G234451
345 Jacobsen, Bo234466 21.88
346 Hlousek, Zdenek234462
347 De Greif, Boris234274 40.72
348 Visier Segovia, Fernando234259 27.74
349 Ujtelky, Maximilián234158 55.53
350 Skold, Kristian234165
351 Holm, Sejer233862 31.22
352 Bazan, Osvaldo233873 36.05
353 Hjorth, Sune233771
354 Fuller, Maxwell L233759 25.76
355 Grdinic, Zvonimir233776 31.85
356 Boudy, Julio233668 19.39
357 Schaufelberger, Heinz233656 22.94
358 Deze, Anton233666
359 Pietrusiak, Bogdan233561 37.30
360 Brostrom, Goran233565 28.51
361 Norby, Peter H233467 30.34
362 Golombek, Harry233371 59.66
363 Gliksman, Darko233366 33.07
364 Cafferty, Bernard233175 36.34
365 Rodriguez Vargas, Orestes233165 27.32
366 Gasiorowski, Ryszard233162 34.88
367 Wade, Robert Graham233057
368 Faragó, Iván233063 24.58
369 Ilievski, Borce233073 35.20
370 Kiffmeyer, Constanz232967
371 Sahovic, Dragutin232771 30.23
372 Gereben, Ernö232659 63.37
373 Cuartas, Carlos232663 30.21
374 Prochownik, Franciszek232565 35.95
375 Juarez, Carlos Eleodoro232366 32.34
376 Steiner, Ulrich A232272 30.90
377 Agdamus, Jose Luis232258
378 Neukirch, Detlef232161 30.23
379 Martinovic, Slobodan232174 25.27
380 Enevoldsen, Jens232166 63.11
381 Mestrovic, Zvonimir232061 26.04
382 Knox, Victor W231975 25.77
383 Whiteley, Andrew J231971 23.39
384 Domnitz, Zadok231963 37.04
385 Sydor, Andrzej231855 33.83
386 Yepez Obando, Olavo231759
387 Debarnot, Roberto231766 23.24
388 Filep, Tibor231762 34.84
389 Ribli, Zoltán231561 19.15
390 Barendregt, Johan Teunis231565
391 Muchnik, Khanan Lvovich231468
392 Bajec, Ivo231373 38.52
393 Sandor, Bela231268 50.87
394 Jankovec, Ivan231164 32.04
395 Pritchett, Craig William231166
396 Burger, Karl231074 37.77
397 Bouaziz, Slim231062 20.54
398 Jongsma, Alexander231055 32.41
399 Bellon Lopez, Juan Manuel230958 20.48
400 Hoen, Ragnar230963 30.07
401 Roehrl, Karl230966 29.80
402 Golovko, Nikolay Grigorievic230868
403 Ocampo, Raul2230873
404 Sapi, Laszlo230659 35.61
405 Ljungqvist, Lennart230666
406 Mariotti, Sergio230561 24.22
407 Durao, Joaquim230458 40.02
408 Machacek, Petr230467
409 De Castro, Edgar230369
410 Troianescu, Octav230364 54.73
411 Shaw, Terrey Ian230374
412 Kristinsson, Jon230373 28.37
413 Liljedahl, Lennart230169 23.18
414 Letelier Martner, René230064 55.11
415 Sarapu, Ortvin230066 46.78
416 Paoli, Enrico229953 62.80
417 Garcia Martinez, Silvino229956 26.32
418 Thorsteins, Karl1229771
419 Pytel, Krzysztof229659 25.46
420 Cornelis, Frans B229667 28.82
421 Ulvestad, Olaf229668 58.01
422 Wibe, Terje229673 23.07
423 Gromek, Jozef229364 39.53
424 Menvielle Lacourrelle, Augusto229267 32.22
425 Ozsvath, Andras229269 41.20
426 Portisch, Ferenc229163 31.56
427 Gasic, Bozidar229166 33.05
428 Luckis, Marcos229174 65.79
429 Heidenfeld, Wolfgang229067
430 Panov, Vasily N228963 63.99
431 Ortega, Rogelio228963
432 Pedersen, Eigil228865
433 Kramer, Haije228867 52.93
434 Incutto, Carlos228871
435 Shashin, Boris S228767
436 Lanc, Alois228669 22.70
437 Vogt, Lothar H228558 18.79
438 Davie, Alexander Munroe228471
439 Zichichi, Alvise228362 32.32
440 Pleci, Isaías228273 63.01
441 Andersson, Bengt228167 37.03
442 Kazilaris, Nikolaos228076 28.69
443 Van Riemsdijk, Herman C228066 22.18
444 Kristjansson, Bragi227965 25.81
445 Sirkia, Mauri O227873 23.29
446 Cordovil, Joao227658 24.52
447 Zinser, Sylvain227563
448 Kristinsson, S.227573
449 Janetschek, Karl227567 30.54
450 Eales, Richard G227476
451 Safvat, Y.227375
452 Hamilton, Douglas G227369 29.21
453 Vadasz, Laszlo227058 22.76
454 Kchouk, Bechir226975
455 Cibulka, Vladimir226874 28.99
456 Huguet, Bernard226760 37.59
457 Mashian, Yaacov226764 31.87
458 De la Vega, Hector226675 44.62
459 Malmdin, Nils Ake226663
460 Hualpa226676
461 Vizantiadis, Lazaros226461 32.58
462 From, Sigfred226470 44.88
463 Petersen, Finn226361 30.51
464 Garcia, Gilberto226268
465 Trikaliotis, Georgios226272 31.68
466 Koskinen, Heikki225969
467 Donnelly, Brian225967
468 McDonald Ross, Michael225875
469 Cuasnicu, Oscar225775 28.02
470 Piket, Joop J225758 29.87
471 Day, Lawrence A225562 21.75
472 Kristjansson, Olafur225563 28.17
473 Littleton, Michael Flannan225567
474 Friedgood, David225370 24.30
475 Duraku225376
476 Camilleri, Henry225263
477 Klein, Manfred225174 30.03
478 Trincardi, Tullio225164 34.61
479 Yoffie, Marc225074 23.21
480 Zorigt, D.224971
481 Beni, Alfred224870 47.41
482 Szekely, Mihaly224865
483 Caro, Alberto N224661
484 Diaz, Joaquin C224572 22.32
485 Szmetan, Jorge224572 20.43
486 Macskasy, Elod224471
487 Bredewout, Henk224269 33.91
488 Schmitz, Bernd224166
489 Mazzoni, Guy224073 36.09
490 Beyen, Roland223870 38.57
491 Brueggemann, Joachim223769 19.08
492 Brameyer, Hermann223765 31.21
493 Banas, Jan223669 23.41
494 Toth, Peter223674 30.15
495 Moles, John223675 21.11
496 Witt, Laszlo223576 37.58
497 Bailey, Richard223376
498 Hemmassi, N.223269
499 Malagon, Alberto223273
500 Sursock, Sameer223276

These ratings, calculated as of October 31, 1970, incorporate all games (against rated opponents) played in the time between October 1, 1969 and October 31, 1970, along with the ratings that were already calculated as of September 30, 1969. 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, 1970. This represents the player's estimated strength on November 1, 1970.

+/- 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, 1970. The +/- value represents the standard deviation of that estimate; the player's true strength on November 1, 1970 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, 1970. 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, 1970. 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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