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Top 10 active players as of May 31, 1991

  #  

Player Rating +/-
1 Kasparov, Garry K284249
2 Karpov, Anatoly E279048
3 Ivanchuk, Vassily276549
4 Salov, Valery B271650
5 Gelfand, Boris271648
6 Bareev, Evgeny270850
7 Beliavsky, Alexander G270548
8 Short, Nigel D270448
9 Timman, Jan H268248
10 Gurevich, Mikhail N267649

About these ratings

Top 500 active players as of May 31, 1991

  #  

Player Rating +/- Best? 75%? Age
1 Kasparov, Garry K28424968.4% #228.13
2 Karpov, Anatoly E27904817.5% #440.02
3 Ivanchuk, Vassily2765498.1% #722.20
4 Salov, Valery B2716501.3% #2127.01
5 Gelfand, Boris2716481.0% #2122.93
6 Bareev, Evgeny2708500.9% #2524.53
7 Beliavsky, Alexander G2705480.7% #2637.46
8 Short, Nigel D2704480.5% #2725.99
9 Timman, Jan H2682480.2% #4039.46
10 Gurevich, Mikhail N2676490.1% #4532.28
11 Jussupow, Artur M2673490.1% #4931.30
12 Chernin, Alexander M2671490.1% #5031.23
13 Korchnoi, Viktor L2662470.1% #5760.19
14 Yudasin, Leonid G266149 #5931.81
15 Hübner, Robert266048 #5942.57
16 Lputian, Smbat G265949 #6233.30
17 Speelman, Jonathan S265848 #6234.66
18 Anand, Viswanathan265749 #6321.47
19 Khalifman, Alexander265548 #6525.37
20 Kramnik, Vladimir2652570.1% #7315.93
21 Andersson, Ulf265148 #6939.92
22 Polugaevsky, Lev A265150 #7156.53
23 Eingorn, Viacheslav S265050 #7134.52
24 Balashov, Yury S265049 #7142.22
25 Seirawan, Yasser264848 #7231.19
26 Nikolic, Predrag264848 #7330.72
27 Gavrikov, Victor N264750 #7433.84
28 Dautov, Rustem264552 #7825.51
29 Ehlvest, Jaan264548 #7528.63
30 Shirov, Alexei264549 #7618.91
31 Vyzmanavin, Alexey264451 #7931.41
32 Vaganian, Rafael A264349 #7839.63
33 Dolmatov, Sergey V264249 #7932.28
34 Nunn, John D M264148 #7936.10
35 Epishin, Vladimir264049 #8125.89
36 Azmaiparashvili, Zurab A263850 #8431.21
37 Sax, Gyula263549 #8739.95
38 Adams, Michael263548 #8519.54
39 Vladimirov, Evgeny Y263350 #9034.36
40 Christiansen, Larry M263149 #9134.92
41 Ribli, Zoltán263049 #9239.73
42 Ljubojevic, Ljubomir262948 #9340.58
43 Yurtaev, Leonid262755 #10032.08
44 Tal, Mikhail262649 #9754.56
45 Miles, Anthony J262649 #9736.11
46 Agdestein, Simen262552 #10124.04
47 Panchenko, Alexandar G2625640.1% #11030.15
48 Sveshnikov, Evgeny E262452 #10341.30
49 Oll, Lembit262350 #10125.11
50 Hansen, Curt262149 #10426.70
51 Dreev, Alexey262150 #10522.36
52 Dorfman, Iosif D262051 #10639.08
53 Hjartarson, Jóhann261949 #10528.31
54 Portisch, Lajos261749 #10854.16
55 Kruppa, Yuri261658 #11626.94
56 Tiviakov, Sergei261655 #11418.30
57 Dzindzichashvili, Roman Y261651 #11047.07
58 Romanishin, Oleg M261449 #11139.39
59 Bologan, Viktor261458 #11919.46
60 Chandler, Murray G261349 #11331.16
61 Razuvaev, Yury S261250 #11545.64
62 Kamsky, Gata260950 #11816.99
63 Kengis, Edvins260852 #12032.14
64 Neverov, Valery260652 #12426.94
65 Goldin, Alexander260652 #12326.26
66 Sturua, Zurab260660 #12931.97
67 Vaulin, Alexander260658 #12934.20
68 Georgiev, Kiril260549 #12225.51
69 Sokolov, Andrey Y260350 #12428.20
70 deFirmian, Nicholas E260249 #12633.85
71 Rozentalis, Eduardas260051 #12828.01
72 Lerner, Konstantin Z260051 #12941.26
73 Spassky, Boris V260050 #12954.34
74 Dvoiris, Semen I259751 #13332.58
75 Tukmakov, Vladimir B259749 #13145.21
76 Gulko, Boris F259748 #13144.31
77 Akopian, Vladimir259651 #13419.48
78 Aseev, Konstantin N259651 #13430.61
79 Pintér, József259654 #13737.56
80 Ulibin, Mikhail259651 #13519.99
81 Ruban, Vadim259451 #13626.96
82 Psakhis, Lev B259449 #13432.51
83 Pigusov, Evgeny259452 #13730.17
84 Torre, Eugenio259352 #13739.57
85 Yermolinsky, Alex V259257 #14233.14
86 Kuzmin, Gennady P259253 #14045.37
87 Huzman, Alexander259055 #14329.14
88 Ftácnik, Lubomír259048 #13833.59
89 Smirin, Ilia258750 #14323.36
90 Alburt, Lev O258653 #14645.78
91 Dokhoian, Yury258652 #14526.60
92 Novikov, Igor A258550 #14529.02
93 Pétursson, Margeir258548 #14531.29
94 Vaisser, Anatoli258451 #14742.24
95 Krasenkow, Michal258350 #14727.55
96 Yakovich, Yuri258253 #15028.50
97 Makarichev, Sergey Y258256 #15237.54
98 Kharitonov, Andrey Y258153 #15132.16
99 Kurajica, Bojan258154 #15143.54
100 Glek, Igor V258052 #15129.57
101 Giorgadze, Giorgi258054 26.64
102 Timoshchenko, Gennady257953 42.09
103 Kovalev, Andrei257952 29.57
104 Smagin, Sergey257848 32.73
105 Magerramov, Elmar S257753 33.14
106 Kharlov, Andrei257654 22.53
107 Ubilava, Elizbar E257552 40.76
108 Sokolov, Ivan257549 22.96
109 Gorelov, Sergey G257467 33.79
110 Larsen, Bent257449 56.24
111 Hort, Vlastimil257449 47.39
112 Kožul, Zdenko257350 25.03
113 Lobron, Eric257349 31.07
114 Mestel, A Jonathan257256 34.22
115 Benjamin, Joel L257250 27.22
116 Damljanovic, Branko257249 29.95
117 Dlugy, Maxim257251 25.34
118 Hodgson, Julian M257249 27.85
119 Kuzmin, Alexey257155 28.23
120 Barua, Dibyendu257055 24.59
121 Kudrin, Sergey257052 31.73
122 Ionov, Sergey257058 29.40
123 Sakaev, Konstantin257057 17.13
124 Shabanov, Yury F256960 53.55
125 Morovic Fernández, Iván E256855 28.19
126 Serper, Grigory256852 21.71
127 Podgaets, Mikhail Y256774 43.86
128 Piket, Jeroen256649 22.34
129 Baburin, Alexander256661 24.28
130 Rohde, Michael A256655 31.76
131 Rogers, Ian256649 30.93
132 Shabalov, Alexander256652 23.72
133 Naumkin, Igor256551 25.81
134 Wahls, Matthias256549 23.35
135 Smejkal, Jan256451 45.19
136 Arkhipov, Sergey256354 36.93
137 Adorján, András256350 41.17
138 Shneider, Aleksandr256254 29.03
139 Nogueiras, Jesus256149 31.87
140 Averkin, Orest N256164 47.27
141 Knaak, Rainer F256151 38.21
142 Ye Jiangchuan256156 30.53
143 Vasiukov, Evgeny A256152 58.24
144 Suba, Mihai256150 43.99
145 Hulak, Krunoslav256152 40.02
146 Malaniuk, Vladimir P256050 33.86
147 Illescas Cordoba, Miguel256049 25.49
148 Graf, Alexander255961 28.77
149 Granda Zuńiga, Julio E255951 24.27
150 Taimanov, Mark E255959 65.32
151 Lalic, Bogdan255952 27.23
152 Geller, Efim P255853 66.25
153 Kveinys, Aloyzas255853 28.89
154 van der Wiel, John T H255848 31.81
155 Minasian, Artashes255754 24.36
156 Hertneck, Gerald255751 27.70
157 Spraggett, Kevin B255749 36.56
158 Tseshkovsky, Vitaly V255751 46.68
159 Bönsch, Uwe255750 32.63
160 Orlov, Georgi255661
161 Malisauskas, Vidmantas255554 27.82
162 Gurevich, Ilya255561 19.31
163 Popovic, Petar255450 32.30
164 Lutz, Christopher255250 20.27
165 Khenkin, Igor255252 23.19
166 Olafsson, Helgi255249 34.79
167 Fedorowicz, John P255249 32.68
168 Chekhov, Valery A255151 35.51
169 Rashkovsky, Nukhim N255152 45.12
170 Machulsky, Anatoly D255056 34.69
171 Kavalek, Lubomir255065 47.81
172 Kaidanov, Gregory S255052 31.64
173 Smyslov, Vassily V254950 70.19
174 Stohl, Igor254949 26.68
175 Velimirovic, Dragoljub254951 49.05
176 Zagrebelny, Sergey254867
177 Xie Jun254767 20.59
178 Ivanov, Alexander V254651 35.08
179 Sorokin, Maxim254653 23.36
180 Mokrý, Karel254651 32.32
181 Zhuravliov, Valerij254665 52.47
182 Kholmov, Ratmir D254651 66.05
183 Brodsky, Michail254557 22.18
184 Karpman, Vadim254560 26.05
185 Georgadze, Tamaz V254465 43.56
186 Moiseev, Viktor254464 32.05
187 Didishko, Vereslav254467 42.14
188 Sherbakov, Ruslan254453 21.71
189 Lanka, Zigurds254454 31.03
190 Kindermann, Stefan254448 31.43
191 Wang Zili254357 22.96
192 Xu Jun254356 28.71
193 Kupreichik, Viktor D254251 41.91
194 Palac, Mladen254255 20.29
195 Wolff, Patrick G254151 23.29
196 King, Daniel J254148 27.76
197 Frolov, Artur254058 20.84
198 Lautier, Joel253949 18.14
199 Hellers, Ferdinand253849 22.34
200 Rachels, Stuart253857 21.68
201 Cvitan, Ognjen253850 29.64
202 Petrienko, Vladimir253764 36.23
203 Milos, Gilberto253751 27.59
204 Uhlmann, Wolfgang253750 56.17
205 Kuporosov, Viktor253759 29.68
206 Wojtkiewicz, Aleksander253749 28.38
207 Donchev, Dimitar I253757 32.86
208 Polgar, Zsuzsa253649 22.12
209 Guseinov, Aidyn253661 39.41
210 Sosonko, Gennadi253654 48.04
211 Kovacevic, Vladimir253552 49.18
212 Wilder, Michael253558 28.71
213 Browne, Walter S253451 42.39
214 Gleizerov, Evgeny253357 28.20
215 Cámpora, Daniel H253351 33.92
216 Chiburdanidze, Maia G253351 30.37
217 Arnason, Jon L253251 30.55
218 Khmelnitsky, Igor N253268 22.78
219 Vitolinš, Alvis253263 44.95
220 Gruenberg, Hans Ulrich253151 35.39
221 Janjgava, Lasha253153 21.07
222 Arbakov, Valentin253160 39.34
223 Greenfeld, Alon253155 27.12
224 Chudinovskih, Alexander253171 24.22
225 Gofshtein, Leonid D253075 38.11
226 Nikolenko, Oleg253062 31.94
227 Novik, Maxim253067 27.47
228 Ikonnikov, Vyacheslav253058 25.21
229 Bagirov, Vladimir K253052 54.79
230 Darga, Klaus V253070 57.27
231 Bikhovsky, Avigdor I252958 36.24
232 Mikhalchishin, Adrian B252951 36.54
233 Zlotnik, Boris A252963 44.63
234 Tseitlin, Mark D252969 47.69
235 Sher, Miron N252752 38.92
236 Panchenko, Alexander N252752 37.65
237 Tunik, Gennady252756 38.01
238 Kalinitschew, Sergey252567 35.33
239 Watson, William N252549 29.12
240 Belov, Igor252558
241 Zapata, Alonso252449 32.78
242 Timoshenko, Georgy252453 24.99
243 Pfleger, Helmut252359 47.82
244 Ernst, Thomas252351 30.79
245 Tseitlin, Mikhail S252352 43.95
246 Makarov, Marat252358 28.07
247 Quinteros, Miguel A252257 43.43
248 Fominyh, Alexander252154 31.95
249 Lukin, Andrei M252155 42.76
250 Djuric, Stefan252153 35.85
251 Gipslis, Aivars252163 54.31
252 Najdorf, Miguel252166 81.13
253 Kochiev, Alexander252053 35.18
254 Hansen, Lars Bo252049 22.69
255 Spasov, Vasil252051 20.29
256 Anikaev, Yury252066 42.92
257 Zhidkov, Valery S251958 51.74
258 Faragó, Iván251850 45.16
259 Cramling, Pia251850 28.11
260 Rechlis, Gad251855 24.32
261 Savchenko, Stanislav251758 24.36
262 Oblitas Guerrero, Carlomagno251664
263 Popchev, Milko251653 26.55
264 Simic, Radoslav251454 42.97
265 Gheorghiu, Florin251451 47.15
266 Rodriguez, Amador251450 34.73
267 Arencibia, Walter251451 23.86
268 Kishnev, Sergey251458 34.58
269 Anastasian, Ashot251454 26.87
270 Horvath, Jozsef251349 26.80
271 Varavin, Viktor251359 24.02
272 Ye Rongguang251353 27.66
273 Bischoff, Klaus251349 29.97
274 Kosten, Anthony C251350 32.85
275 Basin, Leonid251264 33.52
276 Plaskett, Jim251253 31.20
277 Polgar, Judit251250 14.86
278 Shipov, Sergei251272 25.12
279 Tischbierek, Raj251252 28.69
280 Cifuentes Parada, Roberto251152 33.44
281 Magomedov, Magaram251157 25.03
282 Dizdar, Goran251052 32.49
283 Gufeld, Eduard E251062 55.20
284 Lau, Ralf250951 31.62
285 Vukic, Milan250952 47.78
286 Panno, Oscar R250952 56.21
287 Rodriguez Vargas, Orestes250956 47.91
288 Palatnik, Semen A250955 41.18
289 Sellos, Didier250867 34.28
290 Georgiev, Krum250852 33.02
291 Tolnai, Tibor250750 26.69
292 Petkevich, Jusefs250763 50.45
293 Marin, Mihail250753 26.11
294 Kurtenkov, Atanas250768 27.83
295 Cebalo, Mišo250651 46.32
296 Schoenthier, Frank250669 32.54
297 Duer, Arne250563 31.89
298 Matulovic, Milan250558 55.97
299 Zaichik, Gennady L250552 34.30
300 Kotronias, Vasilios250450 26.77
301 Ardiansyah, Haji250462 39.49
302 Gurevich, Vladimir250360 31.82
303 Liberzon, Vladimir M250266 54.19
304 Hebden, Mark250251 33.29
305 Nikolac, Juraj250267 59.11
306 Andrianov, Nikolai250272 29.45
307 Klinger, Josef250150 23.98
308 Soppe, Guillermo250154 30.71
309 Veingold, Aleksander250159 37.64
310 Bronstein, David I250057 67.28
311 Titov, German250059 28.10
312 Bukic, Enver250072 53.50
313 Loginov, Valery A250053 35.47
314 Rytshagov, Mikhail250059 23.55
315 Kallai, Gabor250056 32.28
316 Barlov, Dragan249951 34.34
317 Rivas Pastor, Manuel249955 30.88
318 Zakharov, Alexander V249969 47.65
319 Savon, Vladimir A249952 50.68
320 Piskov, Yury249755 29.64
321 Hector, Jonny249749 27.30
322 Moskalenko, Viktor249750 30.49
323 Dzuban, Oleg I249765
324 Bass, Leonid249656 34.00
325 Yuneev, Alexey249658
326 Ivanovic, Božidar249550 44.77
327 Mochalov, Evgeny V249564 39.59
328 Murey, Yakov249554 49.83
329 Cabrilo, Goran249550 32.91
330 Lima, Darcy249563 29.03
331 Beim, Valery249462 41.21
332 Tabatadze, Tamaz249467 23.17
333 Podzielny, Karl Heinz249364 36.72
334 Meduna, Eduard249352 40.72
335 Yuferov, Sergey N249356 45.49
336 Ornstein, Axel249363 39.10
337 Schmittdiel, Eckhard249350 31.05
338 Inkiov, Ventzislav249350 35.03
339 Rausis, Igors249355 30.15
340 Yrjola, Jouni249351 31.60
341 Vogt, Lothar H249351 39.37
342 García Gonzáles, Guillermo249357 37.48
343 Rubinetti, Jorge A249258 46.17
344 Meister, Yakov249261 35.72
345 Hickl, Joerg249251 26.12
346 Jelen, Iztok249167 44.37
347 Foisor, Ovidiu249159 32.15
348 Ivanov, Igor V249154 44.40
349 Hazai, Laszlo249157 37.96
350 Flear, Glenn C249150 32.30
351 Kiselev, Sergey249153 29.71
352 Petrosian, Arshak B249052 37.46
353 Brunner, Lucas248948 24.01
354 Karlsson, Lars248952 35.89
355 Annageldyev, Orazly248968 31.20
356 Marjanovic, Slavoljub248954 36.40
357 Sunye Neto, Jaime248952 34.08
358 Kosic, Dragan248861 21.29
359 Jansa, Vlastimil248849 48.51
360 Gaprindashvili, Nona248856 50.08
361 Gallagher, Joseph G248849 27.07
362 Dimitrov, Vladimir248856 23.14
363 Vera, Reynaldo248853 30.40
364 Renet, Olivier248850 26.44
365 Cid, Marino Alejandro248764 32.96
366 Edelman, Daniel248764 22.26
367 Brenninkmeijer, Joris248752 21.71
368 Ermenkov, Evgenij248750 41.67
369 Haba, Petr248652 26.40
370 Moroz, Alexander248661 30.37
371 Reshevsky, Samuel H248665 79.51
372 Lukacs, Peter248549 40.89
373 Zlochevskij, Alexander248563 27.93
374 Abramovic, Boško248552 40.30
375 Romero Holmes, Alfonso248551 26.01
376 Csom, István248551 50.99
377 Komarov, Dimitri248560 22.50
378 Unzicker, Wolfgang248553 65.92
379 Solozhenkin, Evgeniy248461 24.83
380 Ghinda, Mihail Viorel248459 41.85
381 Fishbein, Alexander248353 23.06
382 Vorotnikov, Vladislav V248361 43.79
383 Todorcevic, Miodrag248350 50.56
384 Zezulkin, Jurij248266 19.79
385 Gomez Baillo, Jorge H248257 32.12
386 Kouatly, Bachar248256 33.24
387 Schussler, Harry248255 33.93
388 Khasin, Alexander248160 40.09
389 Dizdarevic, Emir248153 33.16
390 Frias, Victor J248155 35.31
391 Stangl, Markus248151 22.09
392 Mednis, Edmar J248154 54.19
393 Doroshkievich, Vladimir K248062 53.43
394 Lein, Anatoly248055 60.18
395 Norwood, David248055 22.66
396 Ionescu, Constantin248055 32.72
397 Mirkovic, Slobodan248063 32.84
398 Thorsteins, Karl248053 26.63
399 Ziatdinov, Raset247954 32.43
400 Espig, Lutz247952 42.40
401 Pekarek, Ales247956 29.46
402 Tempone, Marcelo247957 28.73
403 Barbero, Gerardo F247949 29.78
404 Atalik, Suat247955 26.64
405 Sahovic, Dragutin247967 50.81
406 Van der Sterren, Paul247950 35.21
407 Gruenfeld, Yehuda247856 35.26
408 Galliamova, Alisa247861 19.37
409 Womacka, Mathias247862 24.92
410 Lin Ta247858 28.33
411 Efimov, Igor247857 30.71
412 Tisdall, Jonathan D247850 32.76
413 Gonzalez, JA.247865
414 Mukhametov, Eldar247860 22.03
415 Schlosser, Philipp247750 22.78
416 Mainka, Romuald247752 28.04
417 Ivkov, Borislav247753 57.55
418 Franco Ocampos, Zenon247750 35.05
419 Kraidman, Yair247671 58.58
420 Reeh, Oliver247652 27.37
421 Kuczynski, Robert247551 25.12
422 Kapetanovic, Armin247559
423 Garcia Palermo, Carlos247553 37.50
424 Ibragimov, Ildar247556 23.79
425 Zhelnin, Vladimir V247561 44.22
426 Sideif Sade, Fikret I247462 39.41
427 Prandstetter, Eduard247457 42.46
428 Saltaev, Mihail247469 28.53
429 Beshukov, Sergei247456 20.16
430 Ekstroem, Roland247465 35.03
431 Adianto, Utut247354 26.21
432 Filipenko, Alexander V247362 42.24
433 Groszpeter, Attila247350 30.97
434 Budnikov, Alexandar247256 24.35
435 Kolev, Atanas247255 23.88
436 Zilberstein, Valery I247272 48.13
437 Ginsburg, Gennadij247271 19.80
438 Moldobaev, Emelbek247165
439 Shmuter, Leonid247168 22.08
440 Bruk, Ofer247160 23.38
441 Temirbaev, Serik247062
442 Finegold, Benjamin247053 21.73
443 Poluljahov, Aleksandr246959 25.98
444 Milov, Leonid246973 25.32
445 Gligoric, Svetozar246954 68.33
446 Johansen, Darryl K246957 32.32
447 Rajkovic, Dusan246951 48.95
448 Schmidt, Wlodzimierz246850 48.14
449 Byrne, Robert E246856 63.11
450 Pichler, Juergen246860 29.99
451 Magem Badals, Jordi246852 23.77
452 Kantsler, Boris246858 29.12
453 Sadler, Matthew246853 17.04
454 Gurgenidze, Bukhuti I246761 57.55
455 Rukavina, Josip246765 48.51
456 Perovic, Dragan246770
457 Bellon Lopez, Juan Manuel246752 41.06
458 Levitt, Jonathan246652 27.99
459 Klundt, Klaus246668 49.43
460 Semkov, Semko246657 31.26
461 Vehi Bach, Victor Manuel246656
462 Godena, Michele246656 23.92
463 Legky, Nikolay A246559 36.14
464 Lechtynsky, Jiri246556 43.52
465 Kirov Ivanov, Nino246454 45.73
466 Komljenovic, Davor246456 46.91
467 Ivanov, Sergey246459 29.67
468 Hresc, Vladimir246366 39.53
469 Kosashvili, Yona246359 20.91
470 Howell, James C246252 24.04
471 Drasko, Milan246251 28.48
472 Strikovic, Aleksa246250 30.05
473 Nasybullin, Vladislav246272
474 Lazarev, Vladimir246273 26.98
475 Renman, Nils Gustaf246273
476 Ostenstad, Berge246150 26.71
477 Urday, Henry246155 23.90
478 Fernandez Garcia, Jose Luis246055 37.08
479 Filipovic, Branko246060 33.65
480 Davies, Nigel R246050 30.83
481 Antonio, Rogelio Jr246060 29.28
482 Castro Rojas, Oscar Humberto246057 38.06
483 Ivanov, V.245974
484 Brooks, Michael A245962 30.12
485 Semeniuk, Alexander A245969 38.72
486 Knezevic, Milorad245954 54.58
487 Antunes, Antonio245952 29.32
488 Giardelli, Sergio C245963 35.92
489 Orso, Miklos245866 34.97
490 Stefansson, Hannes245853 18.87
491 Mohr, Stefan245850 23.61
492 Ree, Hans245856 46.71
493 Ilincic, Zlatko245752 23.06
494 Lagunow, Alexander245769 23.88
495 Martynov, Pavel245768 23.41
496 Vallifuoco, Giacomo245772 34.07
497 Szekely, Peter245653 36.31
498 Thorhallsson, Throstur245658 22.20
499 Conquest, Stuart245649 24.25
500 Bergstrom, Christer245670 32.68

These ratings, calculated as of May 31, 1991, incorporate all games (against rated opponents) played in the time between June 1, 1990 and May 31, 1991, along with the ratings that were already calculated as of May 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 May 31, 1991. This represents the player's estimated strength on June 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 June 1, 1991. The +/- value represents the standard deviation of that estimate; the player's true strength on June 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 June 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 May 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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