< June 30, 1971     Back to date list    October 31, 1971 >

Top 10 active players as of August 31, 1971

  #  

Player Rating +/-
1 Fischer, Robert J289850
2 Spassky, Boris V275051
3 Korchnoi, Viktor L271349
4 Botvinnik, Mikhail M270259
5 Petrosian, Tigran V269750
6 Polugaevsky, Lev A269550
7 Larsen, Bent268849
8 Stein, Leonid Z268650
9 Keres, Paul268351
10 Tal, Mikhail268352

About these ratings

Top 500 active players as of August 31, 1971

  #  

Player Rating +/- Best? 75%? Age
1 Fischer, Robert J28985096.7% #128.48
2 Spassky, Boris V2750511.8% #634.59
3 Korchnoi, Viktor L2713490.3% #1240.44
4 Botvinnik, Mikhail M2702590.4% #1660.04
5 Petrosian, Tigran V2697500.1% #1642.21
6 Polugaevsky, Lev A2695500.2% #1636.78
7 Larsen, Bent2688490.1% #1836.49
8 Stein, Leonid Z2686500.1% #1936.80
9 Keres, Paul2683510.1% #2055.65
10 Tal, Mikhail2683520.1% #2134.81
11 Smyslov, Vassily V267050 #2450.44
12 Portisch, Lajos266648 #2534.41
13 Geller, Efim P265449 #3046.50
14 Hort, Vlastimil265047 #3127.64
15 Taimanov, Mark E265051 #3245.57
16 Bronstein, David I264351 #3647.53
17 Smejkal, Jan263650 #3825.44
18 Suetin, Alexey S263256 #4344.79
19 Tukmakov, Vladimir B263154 #4225.46
20 Gligoric, Svetozar263048 #4048.58
21 Vasiukov, Evgeny A262354 #4738.49
22 Krogius, Nikolay V262159 #5041.11
23 Hübner, Robert262051 #4722.82
24 Olafsson, Fridrik261755 #5136.60
25 Savon, Vladimir A261753 #5030.92
26 Uhlmann, Wolfgang261348 #5036.42
27 Gipslis, Aivars260652 #5634.56
28 Ivkov, Borislav260547 #5537.80
29 Karpov, Anatoly E260255 #6020.27
30 Kholmov, Ratmir D259953 #6246.30
31 Andersson, Ulf259752 #6220.18
32 Schmid, Lothar M259459 #6843.31
33 Gheorghiu, Florin259450 #6427.40
34 Panno, Oscar R259150 #6636.46
35 Gufeld, Eduard E259156 #6935.45
36 Osnos, Viacheslav V258563 #7636.10
37 Sanguinetti, Raúl C258467 #7938.58
38 Unzicker, Wolfgang258353 #7346.18
39 Darga, Klaus V258359 #7737.52
40 Mecking, Henrique257951 #7519.61
41 Najdorf, Miguel257751 #7761.38
42 Benko, Pal C257750 #7643.13
43 Reshevsky, Samuel H257650 #7759.76
44 Furman, Semen A257356 #8250.75
45 Matulovic, Milan257249 #7936.22
46 Averbakh, Yury L257056 #8549.56
47 Bagirov, Vladimir K256957 #8535.04
48 Dzindzichashvili, Roman Y256768 #9427.32
49 Liberzon, Vladimir M256553 #8734.44
50 Khasin, Abram I256475 #10148.54
51 Evans, Larry M256255 #9139.44
52 Gurgenidze, Bukhuti I256262 #9637.80
53 Pachmann, Ludek256164 #9647.30
54 Kavalek, Lubomir256051 #9128.06
55 Podgaets, Mikhail Y256058 #9524.11
56 Matanovic, Aleksandar256051 #9141.27
57 Lutikov, Anatoly S255958 #9538.57
58 Pfleger, Helmut255958 #9628.07
59 Browne, Walter S255750 #9322.64
60 Zaitsev, Alexander N255352 #9636.21
61 Szabó, László255250 #9654.45
62 Sakharov, Yury N255069 #10948.95
63 Etruk, Rein T254967 #10933.44
64 Klovans, Janis254972 #11336.39
65 Averkin, Orest N254770 #11327.52
66 Balashov, Yury S254656 #10522.47
67 Kuzmin, Gennady P254459 #10825.62
68 Lombardy, William J254057 #11133.74
69 Byrne, Robert E253954 #11043.36
70 Lein, Anatoly253565 #12040.43
71 Shamkovich, Leonid A253556 #11548.25
72 Parma, Bruno253349 #11329.67
73 Dementiev, Oleg I253361 #11933.66
74 Pomar Salamanca, Arturo253052 #11739.99
75 Kupreichik, Viktor D252960 #12322.16
76 Ciric, Dragoljub M252954 #11935.80
77 Marangunic, Srdjan252962 #12527.83
78 Filip, Miroslav252952 #11842.84
79 Tringov, Georgy P252851 #11834.48
80 Zaitsev, Igor A252854 #12133.26
81 Kurajica, Bojan252752 #11923.79
82 Gulko, Boris F252774 #13324.56
83 Kotov, Alexander A252568 #13158.05
84 Malich, Burkhard G252552 #12234.76
85 Antoshin, Vladimir S252252 #12442.30
86 Vaganian, Rafael A252155 #12719.87
87 Donner, Johannes H252149 #12344.15
88 Tseshkovsky, Vitaly V251866 #13626.93
89 Velimirovic, Dragoljub251858 #13129.30
90 Barcza, Gedeon251753 #12960.03
91 Kaplan, Julio P251663 #13621.10
92 Kovacevic, Vladimir251459 #13629.43
93 Nei, Iivo251358 #13639.83
94 Minic, Dragoljub251249 #13134.49
95 Addison, William G251055 #13737.76
96 Marovic, Dražen251054 #13733.63
97 Planinc, Albin250954 #13627.37
98 Platonov, Igor V250956 #13837.62
99 Byrne, Donald250663 #14541.22
100 Bolbochán, Julio250661 #14451.45
101 Kapengut, Albert Z250267 27.16
102 Rakic, Tomislav250276 36.80
103 Kraidman, Yair249957 38.83
104 Lengyel, Levente249850 38.22
105 Schmidt, Wlodzimierz249854 28.39
106 Ignatiev, Felix N249774 39.64
107 Padevsky, Nikola B249753 38.26
108 Bobotsov, Milko G249750 39.91
109 Bilek, István249550 39.05
110 Suttles, Duncan249453 25.69
111 Markland, Peter R249463 20.38
112 Forintos, Gyözö V249450 36.09
113 Mednis, Edmar J249469 34.44
114 Ciocaltea, Victor249451 39.62
115 Damjanovic, Mato249450 44.44
116 Hecht, Hans-Joachim249152 32.59
117 Radulov, Ivan249152 32.65
118 Rossolimo, Nicolas248962 61.51
119 Bogdanovic, Rajko248857 39.79
120 Bukic, Enver248757 33.75
121 Yanofsky, Daniel A248761 46.43
122 Penrose, Jonathan248058 37.89
123 Robatsch, Karl248062 42.87
124 Jansa, Vlastimil248050 28.76
125 Csom, István247951 31.25
126 Zuckerman, Bernard247757 28.42
127 Nikolaevsky, Yuri V247773
128 Mikenas, Vladas247662 61.37
129 Keene, Raymond247555
130 Timman, Jan H247552 19.71
131 Karner, Hillar247470 36.09
132 Barczay, Laszlo247350 35.53
133 Quinteros, Miguel A247352 23.68
134 Díez del Corral, Jesús247257 38.40
135 Hamann, Svend247262 30.89
136 Adorján, András247250 21.42
137 Mohrlok, Dieter247165
138 Lengyel, Laszlo247069 27.14
139 Minev, Nikolay N247057 40.65
140 Pribyl, Josef247057 23.88
141 Pilnik, Herman246959 57.65
142 Grigorian, Karen A246971 23.98
143 Udovcic, Mijo246864 50.97
144 Teschner, Rudolf246772 49.54
145 Ghitescu, Theodor246752 37.60
146 Fuchs, Reinhart246461 36.92
147 Rossetto, Héctor D246354 48.97
148 Romanishin, Oleg M246265 19.64
149 O'Kelly de Galway, Albéric246255 60.29
150 Haag, Ervin246265 38.64
151 Ree, Hans246150 26.95
152 Zhukhovitsky, Samuil M246164 54.72
153 Karasev, Vladimir I246060 33.21
154 Prameshuber, Aleksander245968
155 Schweber, Samuel245854 35.12
156 Kagan, Shimon245857 29.40
157 Mišta, Ladislav245861 27.83
158 Dely, Peter245753 37.15
159 Saidy, Anthony F245754 34.29
160 Jansson, Borje245656 29.47
161 Johannessen, Svein245662 33.87
162 Maric, Rudolf245562 44.30
163 Sigurjónsson, Gudmundur245557 23.93
164 Pietzsch, Wolfgang W245462 40.69
165 Bouwmeester, Henk B245365 41.95
166 Tseitlin, Mark D245260 27.93
167 Doroshkievich, Vladimir K245255 33.68
168 Rodriguez, Ruben245170 24.73
169 Maeder, Karl Heinz245163
170 Moe, Mogens245169 27.47
171 Messing, Hrvoje244960 31.10
172 Spiridonov, Nikola244956 33.51
173 Janoševic, Dragoljub244950 48.15
174 Vooremaa, Andres244859 27.12
175 Ljubojevic, Ljubomir244858 20.83
176 Bertok, Mario244754 41.99
177 Bachtiar, Arovah244773 37.43
178 Nikolic, Stanimir244660 36.60
179 Garcia, Raimundo244556 35.26
180 Guimard, Carlos E244469 58.40
181 Soltis, Andrew E244372 24.26
182 Smederevac, Petar244362 49.01
183 Geller, Uzi244259 40.59
184 Dueball, Juergen244165 26.42
185 Vukic, Milan244056 28.03
186 Westerinen, Heikki MJ244051 27.34
187 Amos, Bruce M244067 24.67
188 Puc, Stojan243973 50.39
189 Sax, Gyula243758 20.20
190 Cosulich, Roberto243762
191 Prins, Lodewijk243773 58.59
192 Pohla, Harry243671 31.16
193 Langeweg, Kick243551 34.48
194 Hennings, Artur243453 31.14
195 Cortlever, Nicolaas243461 56.21
196 Bisguier, Arthur B243453 41.89
197 Tarve, Udo243368
198 Tatai, Stefano243253 33.44
199 Zilberstein, Valery I243268 28.38
200 Daskalov, Georgi243262
201 Hartston, William R243260 24.05
202 Rogoff, Kenneth S243259 18.44
203 Ojanen, Kaarle Sakari243169
204 Pedersen, Karl243166 30.92
205 Johansson, Martin243063 53.07
206 Brinck Claussen, Bjorn242958
207 Nowak, Erwin242872
208 Stoppel, Franz242875 39.90
209 Torán Albero, Román242756 39.89
210 Ostojic, Predrag242655 33.53
211 Lehmann, Heinz Dr242660
212 Cuéllar Gacharná, Miguel242659 54.79
213 Drimer, Dolfi242658 36.87
214 Jiménez Zerquera, Eleazar242553 43.18
215 Zwaig, Arne242474
216 Golz, Werner242362
217 Espig, Lutz242252 22.65
218 Bleiman, Yaacov242162 23.97
219 Vranesic, Zvonko242163 32.90
220 Kestler, Hans-Günter242168 31.72
221 Sokolov, Vladimir242171 37.99
222 Moiseev, Oleg L242062 46.32
223 Radovici, Corvin242063 39.70
224 Kovacs, Miklos242071 39.12
225 Gerusel, Mathias241958 33.57
226 Spassov, Liuben241868 28.44
227 Doda, Zbigniew241752 40.53
228 Popov, Luben241657 35.59
229 Soos, Bela241670 41.48
230 Dueckstein, Andreas241461 44.08
231 McKay, Roderick M241476 19.55
232 Peretz, Malkiel241358 28.23
233 Christoph, Manfred241367 40.26
234 Kuijpers, Franciscus Antonius241255
235 Kostro, Jerzy241251 34.60
236 Faragó, Iván241257 25.41
237 Ungureanu, Emil241264 34.83
238 Antunac, Goran241274 26.37
239 Kolarov, Atanas S241156 37.50
240 Peev, Peicho Chonev241063 31.41
241 Bednarski, Jacek B241053 32.47
242 Adamski, Jan240955 27.80
243 Kozma, Julius240956 42.25
244 Bhend, Edwin240970 39.97
245 Siaperas, Triantafyllos240858 39.08
246 Honfi, Karoly240752 40.84
247 Naranja, Renato240654 30.93
248 Augustin, Josef240670 29.29
249 Jakobsen, Ole240559 28.86
250 Kupka, Slavoj240458 29.15
251 Medina García, Antonio A240451 51.91
252 Hartoch, Robert G240451
253 Sofrevski, Jovan240464 36.04
254 Navarovszky, Laszlo240471 38.41
255 Cobo Arteaga, Eldis240455
256 Ribli, Zoltán240357 19.98
257 Flesch, Janos240356 37.91
258 Ujtumen, Tudev240355 32.01
259 Zuidema, Coenraad240254
260 Toth, Bela240059 28.37
261 Liebert, Heinz239953 35.27
262 Knezevic, Milorad239868 34.83
263 Lee, Peter N239867
264 Myagmarsuren, Lhamsuren239856 33.54
265 Basman, Michael J239871 25.46
266 Szily, József239770 57.91
267 Scholl, Eddie C239652 26.87
268 Bukal, Vladimir Sr239560 31.83
269 Zinn, Lothar239357 33.45
270 Estrin, Yacov B239362 48.36
271 Patterson, Nicholas J239374
272 Gaprindashvili, Nona239363 30.33
273 Mihaljcisin, Mihajlo239265 38.53
274 van Scheltinga, Tjeerd D239056 57.48
275 Zhuravliov, Valerij239073 32.72
276 Kinnmark, Ove239056 26.69
277 Stupica, Janesz238973
278 Hernandez, Roman238958 21.77
279 Thorbergsson, Freysteinn238768
280 Rubinetti, Jorge A238751 26.42
281 Clarke, Peter H238761
282 Klundt, Klaus238663 29.68
283 Tompa, Janos238671 24.34
284 Polgar, Istvan238657 26.76
285 Ghizdavu, Dumitru238670 22.28
286 Schiffer, Karl Josef238569
287 Camara, Helder238460 34.57
288 Baumbach, Friedrich238360 35.97
289 Filipowicz, Andrzej238359 33.30
290 Calvo Minguez, Ricardo238360 27.85
291 Pritchett, Craig William238264
292 Littlewood, John Eric238168
293 Palermo, Vicente238072 39.47
294 Mititelu, Gheorghe238060 36.83
295 Ek, Hans238064 42.90
296 Kluger, Guyla237958 57.63
297 Liljedahl, Lennart237959 24.01
298 Lechtynsky, Jiri237959 23.77
299 Eising, Johannes237970 36.25
300 Pelikán, Jorge237862 65.36
301 Balcerowski, Witold237858 36.06
302 Sloth, Jorn237769 26.98
303 Lewi, Jerzy237762
304 Mestrovic, Zvonimir237656 26.87
305 Kovacs, Laszlo M237656 32.90
306 Levy, David Neil Lawrence237559
307 Rocha, Antonio237466 27.22
308 Nicevski, Risto237354 26.18
309 Corden, Martyn J237367
310 Bronstein, Luis237174 25.25
311 Sahovic, Dragutin237174 31.06
312 Janata, Michael237074
313 Rodriguez, Jo237061
314 Czerniak, Moshe236857 61.58
315 Rukavina, Josip236864 28.76
316 Nilsson, Zandor236567
317 Szilágyi, György236562 50.16
318 Blatny, Frantisek236567 38.41
319 Wade, Robert Graham236553
320 Richter, Ka236465
321 Kinzel, Anton236470
322 Van Baarle, C John236372 26.37
323 Iym, Tonu236073 30.21
324 Van Geet, Dirk Daniel236058 39.50
325 Belkadi, Ridha235966 46.35
326 Plachetka, Jan235856 26.54
327 Hjorth, Sune235667
328 Hlousek, Zdenek235659
329 Olsson, Ake235559 37.33
330 Masic, Ljubomir235464 35.15
331 Holaszek, Hans235464
332 Foguelman, Alberto235471 47.88
333 Denker, Arnold S235161 57.53
334 Schoeneberg, Manfred235157 25.15
335 Brond, Victor235061
336 Williams, Arthur Howard235071
337 Torre, Eugenio235070 19.82
338 Ekenberg, Bengt234964
339 Enklaar, Bertus F234866
340 Krabbe, Tim234760 28.38
341 Brostrom, Goran234665 29.34
342 Holm, Sejer234663 32.06
343 Boey, Josef234364 37.29
344 Paoli, Enrico234355 63.63
345 Gliksman, Darko234063 33.90
346 Pietrusiak, Bogdan234067 38.13
347 Witkowski, Stefan234058 39.92
348 Wright, Daniel233972
349 Cafferty, Bernard233875 37.18
350 Wotulo, Max233770 39.07
351 Grabczewski, Romuald233756 39.57
352 Manasterski, Lutoslaw233661 34.56
353 Moehring, Guenther233659 34.77
354 Visier Segovia, Fernando233565 28.58
355 Ujtelky, Maximilián233465 56.36
356 Rodriguez Vargas, Orestes233269 28.16
357 Poch, Cesar Guillermo233159
358 Gereben, Ernö233162 64.20
359 Vogt, Lothar H233156 19.62
360 Kirov Ivanov, Nino233074 25.97
361 Fuller, Maxwell L232862 26.59
362 Gasiorowski, Ryszard232869 35.72
363 Ilievski, Borce232876 36.04
364 Roehrl, Karl232667 30.64
365 Jacobsen, Bo232568 22.72
366 Boudy, Julio232570 20.22
367 Pytel, Krzysztof232557 26.29
368 Malmgren, Sven Goran232572
369 Hvenekilde, Jorgen232474 36.01
370 Whiteley, Andrew J232467 24.23
371 Jankovec, Ivan232471 32.87
372 Vadasz, Laszlo232457 23.59
373 Ludgate, Alan232375 25.99
374 Kiffmeyer, Constanz232376
375 Braun, Gottfried232268 38.17
376 Troianescu, Octav232256 55.57
377 Prochownik, Franciszek232273 36.79
378 Deze, Anton232266
379 Cuartas, Carlos232167 31.04
380 Steiner, Ulrich A232072 31.74
381 Domnitz, Zadok231871 37.87
382 Agdamus, Jose Luis231862
383 Yepez Obando, Olavo231866
384 Bouaziz, Slim231764 21.37
385 Ulvestad, Olaf231773 58.84
386 Botterill, George Steven231673
387 Enevoldsen, Jens231573 63.93
388 Akvist, Hakan231471 29.84
389 Neukirch, Detlef231462 31.06
390 Norby, Peter H231368 31.18
391 Filep, Tibor231268 35.68
392 Sumiacher, Carlos231263
393 Banas, Jan231266 24.24
394 Van den Berg, Carel Benjamin231161
395 Skold, Kristian231168
396 Cornelis, Frans B231068 29.65
397 Mariotti, Sergio231067 25.06
398 Bellon Lopez, Juan Manuel231063 21.31
399 Debarnot, Roberto230975 24.07
400 Garcia Martinez, Silvino230857 27.16
401 Jongsma, Alexander230860 33.25
402 Schaufelberger, Heinz230759 23.78
403 Letelier Martner, René230759 55.94
404 Sapi, Laszlo230666 36.45
405 Cuasnicu, Oscar230474 28.85
406 Portisch, Ferenc230371 32.39
407 Pedersen, Eigil230275
408 De Castro, Edgar230172
409 Knox, Victor W230070 26.61
410 Wibe, Terje229876 23.90
411 Sydor, Andrzej229658 34.66
412 Gromek, Jozef229672 40.36
413 Van Riemsdijk, Herman C229569 23.01
414 Shaw, Terrey Ian229475
415 Hoen, Ragnar229365 30.90
416 Heidenfeld, Wolfgang229370
417 Ljungqvist, Lennart229064
418 Sarapu, Ortvin229070 47.61
419 Juarez, Carlos Eleodoro229061 33.17
420 Cordovil, Joao228963 25.36
421 Ortega, Rogelio228872
422 Durao, Joaquim228761 40.84
423 Andersson, Bengt228771 37.86
424 Platzack, Sven228775
425 Ocampo Vargas, Raul228672
426 Barendregt, Johan Teunis228563
427 Kivioja, Endel228473
428 Vark, K.228473
429 Garcia, Horacio228467
430 Zichichi, Alvise228466 33.16
431 Kristinsson, S.228373
432 Panov, Vasily N228371 64.83
433 Zinser, Sylvain228370
434 Sirkia, Mauri O228071 24.12
435 Camilleri, Henry227668
436 Gasic, Bozidar227672 33.88
437 Safvat, Y.227576
438 Petersen, Finn227463 31.34
439 Hamilton, Douglas G227371 30.04
440 McDonald Ross, Michael226974
441 Brueggemann, Joachim226964 19.90
442 Moles, John226971 21.94
443 Kazilaris, Nikolaos226776 29.52
444 Bjerre, Troels226675 24.04
445 Kristjansson, Bragi226569 26.65
446 Mashian, Yaacov226469 32.71
447 Malmdin, Nils Ake226464
448 Gross, Stefan226471 22.01
449 Koskinen, Heikki226372
450 Brameyer, Hermann226363 32.05
451 Janetschek, Karl226272 31.37
452 Hempson, Peter W226275 35.54
453 Vizantiadis, Lazaros226164 33.41
454 Huguet, Bernard226066 38.42
455 Diaz, Joaquin C225876 23.15
456 Knaak, Rainer F225860 18.46
457 Piket, Joop J225764 30.71
458 Malagon, Alberto225773
459 Littleton, Michael Flannan225671
460 Bonner, Gerald225668 30.33
461 Friedgood, David225572 25.14
462 Donnelly, Brian225371
463 Hemmassi, N.225267
464 Trincardi, Tullio225272 35.44
465 Nordstrom, Felix225276 27.24
466 Toth, Peter225075 30.98
467 Kristjansson, Olafur224971 29.01
468 Trikaliotis, Georgios224973 32.52
469 Boehnisch, Manfred224962 30.37
470 Szekely, Mihaly224874
471 Day, Lawrence A224769 22.58
472 Novak, Ivan224669 28.60
473 Postler, Reinhard224664 26.68
474 Zorigt, D.224573
475 Beyen, Roland224271 39.40
476 Lhagva, Jambaldoo224269 26.97
477 Caro, Alberto N223969
478 Lombard, Andre223966 20.94
479 Kolbak, Jens223575 26.58
480 Hook, William223167
481 Stull, Norbert222967 28.72
482 Lukacs, Peter222862 21.14
483 Sperber, Goran222773
484 Ardiansyah, Haji222662 19.74
485 Lim Kok Ann222670 51.59
486 Csulits, Anton222467 29.41
487 Duraku222473
488 Cappello, Guido222372
489 Mazzoleni, Julio222071 41.05
490 Lamas, Pedro221669
491 Sursock, Sameer221673
492 Ibrahimoglu, Ismet221569
493 Colon, Arturo221365
494 Bilyap, Siracettin221270 47.79
495 Danov, Kiril221062
496 Yabra, Freddy221072
497 Villarroel, Geber221066
498 Balogh, Bela220976 40.54
499 Hradeczky, Tamas220976 23.40
500 Krstic, Slobodan220975 22.86

These ratings, calculated as of August 31, 1971, incorporate all games (against rated opponents) played in the time between September 1, 1970 and August 31, 1971, along with the ratings that were already calculated as of August 31, 1970. 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, 1971. This represents the player's estimated strength on September 1, 1971.

+/- 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, 1971. The +/- value represents the standard deviation of that estimate; the player's true strength on September 1, 1971 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, 1971. 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, 1971. 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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