< September 30, 1991     Back to date list    November 30, 1991 >

Top 10 active players as of October 31, 1991

  #  

Player Rating +/-
1 Kasparov, Garry K285049
2 Karpov, Anatoly E277348
3 Ivanchuk, Vassily277249
4 Short, Nigel D272048
5 Salov, Valery B271050
6 Jussupow, Artur M270849
7 Gelfand, Boris269849
8 Bareev, Evgeny268748
9 Beliavsky, Alexander G268548
10 Shirov, Alexei268048

About these ratings

Top 500 active players as of October 31, 1991

  #  

Player Rating +/- Best? 75%? Age
1 Kasparov, Garry K28504975.3% #128.55
2 Karpov, Anatoly E2773489.7% #640.44
3 Ivanchuk, Vassily2772499.5% #622.62
4 Short, Nigel D2720481.2% #2026.41
5 Salov, Valery B2710500.9% #2527.43
6 Jussupow, Artur M2708490.7% #2631.72
7 Gelfand, Boris2698490.4% #3223.35
8 Bareev, Evgeny2687480.2% #3924.94
9 Beliavsky, Alexander G2685480.2% #4037.87
10 Shirov, Alexei2680480.1% #4419.32
11 Anand, Viswanathan2679490.2% #4521.89
12 Chernin, Alexander M2678490.1% #4731.65
13 Nikolic, Predrag2672480.1% #5231.14
14 Timman, Jan H2669480.1% #5339.88
15 Gurevich, Mikhail N2667490.1% #5632.69
16 Speelman, Jonathan S2665480.1% #5835.08
17 Khalifman, Alexander2662480.1% #6025.79
18 Hübner, Robert266049 #6342.98
19 Eingorn, Viacheslav S2657510.1% #6834.93
20 Polugaevsky, Lev A2656510.1% #6856.94
21 Ehlvest, Jaan2656480.1% #6629.05
22 Lputian, Smbat G265650 #6733.71
23 Seirawan, Yasser265148 #7131.60
24 Vaganian, Rafael A265149 #7240.04
25 Yudasin, Leonid G265049 #7332.23
26 Balashov, Yury S264849 #7642.63
27 Miles, Anthony J264849 #7636.52
28 Sveshnikov, Evgeny E264552 #8041.72
29 Ljubojevic, Ljubomir264449 #7940.99
30 Dautov, Rustem264351 #8225.92
31 Korchnoi, Viktor L264247 #8060.61
32 Kramnik, Vladimir2641580.1% #8916.35
33 Christiansen, Larry M264149 #8235.34
34 Hansen, Curt264049 #8327.12
35 Bologan, Viktor263854 #8919.88
36 Dolmatov, Sergey V263849 #8632.70
37 Epishin, Vladimir263749 #8726.30
38 Kamsky, Gata263750 #8817.41
39 Nunn, John D M263749 #8736.52
40 Vladimirov, Evgeny Y263650 #8834.78
41 Agdestein, Simen263553 #9224.46
42 Azmaiparashvili, Zurab A263550 #9131.62
43 Ribli, Zoltán263349 #9140.15
44 Andersson, Ulf263248 #9140.34
45 Adams, Michael263248 #9219.95
46 Hjartarson, Jóhann262949 #9528.73
47 Gavrikov, Victor N262950 #9634.26
48 Vyzmanavin, Alexey262651 #10131.83
49 Sax, Gyula262650 #10140.37
50 Dorfman, Iosif D262552 #10339.50
51 Psakhis, Lev B262549 #10132.92
52 Yurtaev, Leonid262453 #10532.50
53 Sturua, Zurab262459 #11032.40
54 Oll, Lembit262350 #10425.52
55 Portisch, Lajos262050 #10754.57
56 Kengis, Edvins262051 #10832.55
57 Dreev, Alexey261750 #11222.78
58 Dvoiris, Semen I261651 #11232.99
59 Tal, Mikhail261550 #11354.97
60 Georgiev, Kiril261449 #11325.92
61 Kruppa, Yuri261458 #12027.36
62 deFirmian, Nicholas E261451 #11534.26
63 Dzindzichashvili, Roman Y261351 #11647.49
64 Akopian, Vladimir261250 #11719.90
65 Aseev, Konstantin N261251 #11931.03
66 Chandler, Murray G261149 #11731.57
67 Romanishin, Oleg M261149 #11839.81
68 Pintér, József260954 #12437.97
69 Rozentalis, Eduardas260951 #12128.43
70 Xie Jun260756 #12721.00
71 Goldin, Alexander260752 #12326.68
72 Ulibin, Mikhail260651 #12520.42
73 Neverov, Valery260354 #12927.36
74 Sokolov, Ivan260348 #12723.38
75 Gulko, Boris F260248 #12644.73
76 Vaulin, Alexander260257 #13434.62
77 Razuvaev, Yury S260249 #12846.06
78 Novikov, Igor A260050 #13029.44
79 Yermolinsky, Alex V259956 #13633.55
80 Kharlov, Andrei259654 #13822.94
81 Lerner, Konstantin Z259652 #13641.67
82 Piket, Jeroen259648 #13422.76
83 Lobron, Eric259449 #13531.48
84 Sokolov, Andrey Y259450 #13728.61
85 Tiviakov, Sergei259454 #13918.71
86 Morovic Fernández, Iván E259254 #14128.60
87 Kuzmin, Gennady P259254 #14245.78
88 Hodgson, Julian M259049 #14028.27
89 Magerramov, Elmar S259053 #14333.56
90 Pétursson, Margeir258948 #14131.71
91 Benjamin, Joel L258949 #14227.64
92 Ftácnik, Lubomír258849 #14334.00
93 Pigusov, Evgeny258852 #14530.58
94 Kharitonov, Andrey Y258754 #14732.57
95 Kurajica, Bojan258753 #14643.95
96 Vaisser, Anatoli258651 #14742.65
97 Torre, Eugenio258652 #14739.98
98 Kuzmin, Alexey258654 #14928.65
99 Barua, Dibyendu258555 #15025.01
100 Makarichev, Sergey Y258456 #15137.95
101 Ionov, Sergey258458 29.81
102 Hulak, Krunoslav258252 40.43
103 Spassky, Boris V258250 54.75
104 Krasenkow, Michal258250 27.96
105 Tukmakov, Vladimir B258249 45.63
106 Giorgadze, Giorgi258254 27.06
107 Ruban, Vadim258251 27.38
108 Gorelov, Sergey G258068 34.20
109 Timoshchenko, Gennady258053 42.51
110 Smagin, Sergey257948 33.15
111 Smirin, Ilia257951 23.78
112 Malaniuk, Vladimir P257950 34.28
113 Hertneck, Gerald257952 28.12
114 Yakovich, Yuri257952 28.92
115 Vasiukov, Evgeny A257752 58.65
116 Huzman, Alexander257655 29.56
117 Serper, Grigory257652 22.13
118 Rogers, Ian257549 31.35
119 Kudrin, Sergey257452 32.15
120 Minasian, Artashes257354 24.78
121 Lautier, Joel257348 18.55
122 Suba, Mihai256951 44.41
123 Dokhoian, Yury256851 27.01
124 Larsen, Bent256849 56.66
125 Dlugy, Maxim256751 25.76
126 Granda Zuńiga, Julio E256751 24.68
127 Malisauskas, Vidmantas256654 28.24
128 Rashkovsky, Nukhim N256553 45.54
129 Kveinys, Aloyzas256454 29.31
130 Podgaets, Mikhail Y256475 44.27
131 Ivanov, Alexander V256350 35.50
132 Geller, Efim P256252 66.66
133 Kaidanov, Gregory S256251 32.05
134 van der Wiel, John T H256248 32.23
135 Wolff, Patrick G256251 23.71
136 Ye Jiangchuan256256 30.94
137 Averkin, Orest N256160 47.68
138 Taimanov, Mark E256160 65.73
139 Palac, Mladen256153 20.70
140 Shabanov, Yury F256162 53.96
141 Didishko, Vereslav256166 42.56
142 Smyslov, Vassily V256051 70.60
143 Arkhipov, Sergey256053 37.36
144 Stohl, Igor256049 27.09
145 Adorján, András256051 41.58
146 Nogueiras, Jesus256049 32.29
147 Graf, Alexander256060 29.18
148 Moiseev, Viktor255961 32.47
149 Rohde, Michael A255954 32.18
150 Illescas Cordoba, Miguel255949 25.91
151 Hort, Vlastimil255949 47.80
152 Kovalev, Andrei255751 29.98
153 Damljanovic, Branko255749 30.37
154 Arbakov, Valentin255759 39.76
155 Kalinitschew, Sergey255762 35.74
156 Kavalek, Lubomir255672 48.23
157 Shabalov, Alexander255651 24.13
158 Ubilava, Elizbar E255652 41.18
159 Popovic, Petar255651 32.71
160 Wahls, Matthias255649 23.76
161 Lanka, Zigurds255452 31.44
162 Glek, Igor V255451 29.98
163 Kožul, Zdenko255349 25.44
164 Sherbakov, Ruslan255353 22.13
165 Brodsky, Michail255356 22.59
166 Lalic, Bogdan255352 27.65
167 Tseshkovsky, Vitaly V255252 47.10
168 Baburin, Alexander255258 24.70
169 Machulsky, Anatoly D255258 35.10
170 Fedorowicz, John P255148 33.09
171 Spraggett, Kevin B255150 36.97
172 Panchenko, Alexandar G255166 30.56
173 Shneider, Aleksandr255055 29.44
174 Sorokin, Maxim255053 23.77
175 Arnason, Jon L254951 30.96
176 Xu Jun254957 29.12
177 Zhuravliov, Valerij254866 52.89
178 Velimirovic, Dragoljub254751 49.47
179 Naumkin, Igor254751 26.22
180 Hansen, Lars Bo254649 23.10
181 Khenkin, Igor254652 23.61
182 Lutz, Christopher254649 20.69
183 Hellers, Ferdinand254549 22.76
184 Smejkal, Jan254550 45.61
185 Olafsson, Helgi254550 35.21
186 Mokrý, Karel254550 32.73
187 Alburt, Lev O254454 46.19
188 Milos, Gilberto254451 28.00
189 Mestel, A Jonathan254458 34.63
190 Zezulkin, Jurij254370 20.21
191 Sher, Miron N254253 39.34
192 Khmelnitsky, Igor N254267 23.19
193 Kupreichik, Viktor D254251 42.33
194 Chiburdanidze, Maia G254151 30.79
195 Polgar, Zsuzsa254149 22.53
196 Cámpora, Daniel H254051 34.34
197 Orlov, Georgi254061
198 Makarov, Marat254056 28.48
199 Georgadze, Tamaz V253965 43.97
200 Mikhalchishin, Adrian B253950 36.95
201 Petrienko, Vladimir253969 36.64
202 Guseinov, Aidyn253861 39.83
203 Cvitan, Ognjen253750 30.06
204 Meister, Yakov253760 36.14
205 Zlotnik, Boris A253660 45.04
206 Quinteros, Miguel A253558 43.84
207 Wang Zili253557 23.38
208 Bagirov, Vladimir K253551 55.21
209 Watson, William N253449 29.54
210 Bönsch, Uwe253449 33.04
211 Kuporosov, Viktor253457 30.10
212 Vukic, Milan253451 48.20
213 Donchev, Dimitar I253357 33.28
214 Sosonko, Gennadi253355 48.45
215 Rachels, Stuart253358 22.10
216 Greenfeld, Alon253353 27.54
217 Janjgava, Lasha253253 21.49
218 Sakaev, Konstantin253258 17.55
219 Gleizerov, Evgeny253256 28.61
220 Ikonnikov, Vyacheslav253156 25.63
221 Timoshenko, Georgy253053 25.41
222 Beim, Valery253059 41.62
223 Zapata, Alonso252950 33.19
224 Chekhov, Valery A252950 35.92
225 Ernst, Thomas252850 31.20
226 Ye Rongguang252853 28.08
227 Lagunow, Alexander252860 24.30
228 Palatnik, Semen A252855 41.60
229 Wilder, Michael252759 29.12
230 Frolov, Artur252758 21.25
231 Wojtkiewicz, Aleksander252748 28.79
232 Faragó, Iván252651 45.58
233 Rytshagov, Mikhail252659 23.96
234 Magomedov, Magaram252657 25.45
235 Ivanov, Igor V252553 44.81
236 Cramling, Pia252549 28.52
237 Gruenberg, Hans Ulrich252550 35.81
238 Kosten, Anthony C252450 33.27
239 Fominyh, Alexander252454 32.38
240 Gurevich, Ilya252460 19.73
241 Nikolenko, Oleg252462 32.37
242 Kholmov, Ratmir D252350 66.47
243 Yuneev, Alexey252360
244 Kovacevic, Vladimir252353 49.60
245 Polgar, Judit252350 15.27
246 Gufeld, Eduard E252363 55.62
247 Savchenko, Stanislav252255 24.78
248 Hector, Jonny252248 27.72
249 Knaak, Rainer F252250 38.62
250 Najdorf, Miguel252166 81.54
251 Cifuentes Parada, Roberto252051 33.86
252 Kurtenkov, Atanas252067 28.24
253 Rodriguez, Amador252050 35.15
254 King, Daniel J252048 28.17
255 Vitolinš, Alvis252064 45.38
256 Rechlis, Gad252055 24.74
257 Cebalo, Mišo252051 46.73
258 Anastasian, Ashot252054 27.29
259 Gipslis, Aivars252055 54.73
260 Vogt, Lothar H252050 39.79
261 Karpman, Vadim251859 26.47
262 Anikaev, Yury251868 43.34
263 Spasov, Vasil251853 20.70
264 Mnatsakanian, Eduard A251774 52.90
265 Gofshtein, Leonid D251760 38.53
266 Belov, Igor251659
267 Hickl, Joerg251651 26.54
268 Novik, Maxim251567 27.89
269 Tolnai, Tibor251551 27.11
270 Liberzon, Vladimir M251566 54.61
271 Gheorghiu, Florin251551 47.57
272 Van der Sterren, Paul251549 35.62
273 Jelen, Iztok251566 44.78
274 Kuczynski, Robert251550 25.54
275 Kindermann, Stefan251448 31.84
276 Kochiev, Alexander251453 35.60
277 Alterman, Boris251458 21.49
278 Panchenko, Alexander N251451 38.07
279 Bikhovsky, Avigdor I251356 36.65
280 Renet, Olivier251349 26.86
281 Rivas Pastor, Manuel251355 31.30
282 Zhidkov, Valery S251261 52.16
283 Petkevich, Jusefs251263 50.87
284 Djuric, Stefan251151 36.26
285 Ibragimov, Ildar251155 24.21
286 Duer, Arne251163 32.31
287 Zaichik, Gennady L251153 34.72
288 Georgiev, Krum251052 33.44
289 Horvath, Jozsef251049 27.22
290 Loginov, Valery A250952 35.88
291 Uhlmann, Wolfgang250949 56.59
292 Matulovic, Milan250858 56.39
293 Shipov, Sergei250872 25.54
294 Antonio, Rogelio Jr250854 29.70
295 Tunik, Gennady250857 38.43
296 Lukin, Andrei M250756 43.17
297 Browne, Walter S250751 42.81
298 Popchev, Milko250754 26.96
299 Zlochevskij, Alexander250760 28.35
300 Mochalov, Evgeny V250664 40.01
301 Galliamova, Alisa250663 19.79
302 Chudinovskih, Alexander250667 24.64
303 Varavin, Viktor250558 24.44
304 Cabrilo, Goran250550 33.33
305 Fishbein, Alexander250551 23.48
306 Lau, Ralf250550 32.03
307 Arencibia, Walter250450 24.28
308 Gallagher, Joseph G250449 27.49
309 Sadler, Matthew250452 17.46
310 Kishnev, Sergey250455 34.99
311 Piskov, Yury250352 30.05
312 Bass, Leonid250257 34.42
313 Zagrebelny, Sergey250259
314 Titov, German250257 28.51
315 Ardiansyah, Haji250262 39.90
316 Panno, Oscar R250152 56.62
317 Vera, Reynaldo250153 30.81
318 Tseitlin, Mikhail S250152 44.37
319 Zakharov, Alexander V250071 48.06
320 Soppe, Guillermo250054 31.12
321 Veingold, Aleksander250058 38.06
322 Marin, Mihail249954 26.53
323 Lukacs, Peter249949 41.31
324 Pfleger, Helmut249958 48.23
325 Bronstein, David I249956 67.70
326 Gaprindashvili, Nona249857 50.49
327 Lima, Darcy249863 29.44
328 Klinger, Josef249850 24.40
329 Rubinetti, Jorge A249757 46.58
330 Sellos, Didier249767 34.70
331 Polovodin, Igor A249773 36.61
332 García Gonzáles, Guillermo249758 37.89
333 Schlosser, Philipp249650 23.20
334 Mainka, Romuald249650 28.46
335 Kallai, Gabor249656 32.69
336 Rotstein, Arkadij249558 30.51
337 Zaitsev, Igor A249560 53.43
338 Hebden, Mark249550 33.71
339 Barbero, Gerardo F249449 30.19
340 Haba, Petr249453 26.82
341 Lin Ta249460 28.75
342 Rausis, Igors249455 30.56
343 Reshevsky, Samuel H249360 79.92
344 Rodriguez Vargas, Orestes249354 48.32
345 Andrianov, Nikolai249360 29.86
346 Simic, Radoslav249353 43.39
347 Schmittdiel, Eckhard249249 31.47
348 Kotronias, Vasilios249250 27.18
349 Sunye Neto, Jaime249252 34.49
350 Shmuter, Leonid249266 22.49
351 Cid, Marino Alejandro249164 33.38
352 Meduna, Eduard249154 41.14
353 Nikolac, Juraj249172 59.52
354 Kiselev, Sergey249153 30.13
355 Pekarek, Ales249157 29.87
356 Marjanovic, Slavoljub249055 36.82
357 Reeh, Oliver249052 27.78
358 Klebel, Martin249058 25.47
359 Kouatly, Bachar249054 33.66
360 Abramovic, Boško248952 40.71
361 Inkiov, Ventzislav248951 35.45
362 Dzuban, Oleg I248968
363 Bischoff, Klaus248949 30.39
364 Annageldyev, Orazly248968 31.61
365 Yrjola, Jouni248852 32.02
366 Ivanovic, Božidar248851 45.19
367 Poluljahov, Aleksandr248759 26.40
368 Doroshkievich, Vladimir K248762 53.84
369 Petrosian, Arshak B248751 37.87
370 Romero Holmes, Alfonso248751 26.42
371 Magem Badals, Jordi248753 24.19
372 Csom, István248651 51.41
373 Sahovic, Dragutin248670 51.23
374 Tischbierek, Raj248650 29.10
375 Santo Roman, Marc248653 31.13
376 Ivkov, Borislav248553 57.96
377 Barlov, Dragan248551 34.75
378 Brunner, Lucas248549 24.42
379 Plaskett, Jim248554 31.62
380 Basin, Leonid248465 33.93
381 Mukhametov, Eldar248460 22.44
382 Filipenko, Alexander V248463 42.66
383 Tempone, Marcelo248457 29.15
384 Ermenkov, Evgenij248351 42.09
385 Thorsteins, Karl248353 27.05
386 Yuferov, Sergey N248256 45.91
387 Groszpeter, Attila248251 31.39
388 Luther, Thomas248249 21.98
389 Gonzalez, JA.248265
390 Kapetanovic, Armin248256
391 Sideif Sade, Fikret I248262 39.83
392 Johansen, Darryl K248156 32.74
393 Savon, Vladimir A248152 51.10
394 Norwood, David248156 23.08
395 Moskalenko, Viktor248150 30.91
396 Jansa, Vlastimil248149 48.92
397 Gurevich, Vladimir248159 32.24
398 Budnikov, Alexandar248055 24.76
399 Gomez Baillo, Jorge H248057 32.53
400 Komarov, Dimitri248060 22.91
401 Frias, Victor J248056 35.72
402 Blagojevic, Dragisa248058 25.83
403 Ree, Hans247958 47.13
404 Schussler, Harry247957 34.35
405 Flear, Glenn C247950 32.72
406 Gschnitzer, Oswald247856 25.73
407 Dizdarevic, Emir247853 33.58
408 Hresc, Vladimir247866 39.94
409 Unzicker, Wolfgang247752 66.35
410 Murshed, Niaz247754 25.47
411 Karlsson, Lars247753 36.30
412 Kantsler, Boris247760 29.54
413 Castro Rojas, Oscar Humberto247657 38.48
414 Franco Ocampos, Zenon247651 35.47
415 Hazai, Laszlo247657 38.38
416 Milov, Leonid247673 25.73
417 Saltaev, Mihail247669 28.94
418 Ragozin, Evgeni247562 24.40
419 Murey, Yakov247552 50.24
420 Khasin, Alexander247561 40.51
421 Gligoric, Svetozar247454 68.74
422 Ziatdinov, Raset247452 32.84
423 Glyanets, Alexander R247472 42.50
424 Topalov, Veselin247355 16.63
425 Tseitlin, Mark D247361 48.11
426 Womacka, Mathias247360 25.35
427 Legky, Nikolay A247359 36.55
428 Winants, Luc247353 28.83
429 Rukavina, Josip247365 48.92
430 Bruk, Ofer247260 23.80
431 Byrne, Robert E247257 63.53
432 Manor, Ilan247254 22.01
433 Schroll, Gerhard247257 25.04
434 Todorcevic, Miodrag247249 50.97
435 Bukic, Enver247271 53.91
436 Adianto, Utut247154 26.62
437 Temirbaev, Serik247164
438 Godena, Michele247154 24.34
439 Vazquez, Renier247169
440 Foisor, Ovidiu247060 32.57
441 Strikovic, Aleksa247051 30.47
442 Perovic, Dragan247074
443 Howell, James C247053 24.45
444 Ionescu, Constantin247057 33.13
445 Drasko, Milan246950 28.90
446 Bellon Lopez, Juan Manuel246952 41.48
447 Pogorelov, Ruslan246968 32.40
448 Fernandez Garcia, Jose Luis246854 37.49
449 Galdunts, Sergey246857 26.79
450 Dimitrov, Vladimir246857 23.55
451 Brenninkmeijer, Joris246751 22.13
452 Gruenfeld, Yehuda246754 35.67
453 Yandemirov, Valeri246762 28.72
454 Conquest, Stuart246749 24.66
455 Okhotnik, Vladimir246764 41.67
456 Zelcic, Robert246658 26.11
457 Finegold, Benjamin246654 22.15
458 Pichler, Juergen246661 30.41
459 Ivanov, Sergey246660 30.09
460 Kosic, Dragan246661 21.71
461 Espig, Lutz246653 42.82
462 Solozhenkin, Evgeniy246661 25.25
463 Atalik, Suat246553 27.06
464 Tisdall, Jonathan D246551 33.18
465 Lein, Anatoly246557 60.59
466 Agrest, Evgenij246560 25.21
467 Sanna, Gianlazzaro246568 31.55
468 Kolev, Atanas246555 24.29
469 Blatny, Pavel246550 23.36
470 Ekstroem, Roland246564 35.44
471 Schmidt, Wlodzimierz246451 48.56
472 Ghinda, Mihail Viorel246460 42.27
473 Mohr, Stefan246451 24.02
474 Thorhallsson, Throstur246355 22.62
475 Zysk, Robert246358 25.49
476 Szekely, Peter246354 36.73
477 Kirov Ivanov, Nino246355 46.14
478 Nijboer, Friso246251 26.43
479 Vilela, Jose Luis246258 38.62
480 Rajkovic, Dusan246251 49.37
481 Stefansson, Hannes246152 19.29
482 Root, Douglas246168 28.72
483 Jasnikowski, Zbigniew246151 36.47
484 Moroz, Alexander246160 30.79
485 Ginsburg, Gennadij246069 20.22
486 Davies, Nigel R246050 31.25
487 Orso, Miklos246064 35.40
488 Jackelen, Thomas246060 25.93
489 Paehtz, Thomas Sr246052 35.16
490 Sonntag, Hans Hubert246059
491 Orsag, Milan246067 27.81
492 Nasybullin, Vladislav246070
493 Antunes, Antonio246052 29.73
494 Semkov, Semko245957 31.67
495 Giardelli, Sergio C245963 36.34
496 Dizdar, Goran245952 32.91
497 Comas Fabrego, Luis245956 20.36
498 Ornstein, Axel245964 39.52
499 Dragomarezkij, Evgeni245958 38.78
500 Horváth, Csaba245951 23.40

These ratings, calculated as of October 31, 1991, incorporate all games (against rated opponents) played in the time between November 1, 1990 and October 31, 1991, along with the ratings that were already calculated as of October 31, 1990. 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, 1991. This represents the player's estimated strength on November 1, 1991.

+/- 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, 1991. The +/- value represents the standard deviation of that estimate; the player's true strength on November 1, 1991 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, 1991. 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, 1991. 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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