< September 30, 1988     Back to date list    November 30, 1988 >

Top 10 active players as of October 31, 1988


Top 500 active players as of October 31, 1988

  #  

Player Rating +/- Best? 75%? Age
1 Kasparov, Garry K28124854.9% #225.55
2 Karpov, Anatoly E27944735.4% #337.44
3 Beliavsky, Alexander G2703481.6% #2334.87
4 Short, Nigel D2694481.0% #2823.41
5 Timman, Jan H2691470.8% #2936.88
6 Tal, Mikhail2687480.7% #3151.97
7 Salov, Valery B2683500.6% #3524.43
8 Jussupow, Artur M2672480.3% #4228.72
9 Speelman, Jonathan S2672480.4% #4232.08
10 Tukmakov, Vladimir B2668490.3% #4542.63
11 Ivanchuk, Vassily2668500.3% #4519.62
12 Lputian, Smbat G2665480.2% #4830.71
13 Andersson, Ulf2664480.2% #4837.34
14 Gelfand, Boris2664520.3% #5020.35
15 Yudasin, Leonid G2663510.3% #5029.23
16 Khalifman, Alexander2662490.2% #5022.79
17 Ehlvest, Jaan2657490.2% #5426.05
18 Korchnoi, Viktor L2657470.2% #5357.61
19 Chernin, Alexander M2657490.2% #5528.65
20 Psakhis, Lev B2656480.1% #5429.92
21 Portisch, Lajos2655480.1% #5651.57
22 Ribli, Zoltán2654490.1% #5737.15
23 Agdestein, Simen2654510.1% #5821.46
24 Spassky, Boris V2647490.1% #6451.75
25 Hübner, Robert2646490.1% #6439.98
26 Vaganian, Rafael A264148 #6937.04
27 Nunn, John D M2641480.1% #6933.52
28 Ljubojevic, Ljubomir264048 #7037.99
29 Gavrikov, Victor N2639490.1% #7231.26
30 Azmaiparashvili, Zurab A2638540.1% #7528.62
31 Nikolic, Predrag263748 #7328.14
32 Sax, Gyula263550 #7537.37
33 Gulko, Boris F263449 #7741.73
34 Eingorn, Viacheslav S263350 #7831.93
35 Seirawan, Yasser263349 #7628.60
36 Larsen, Bent2633500.1% #7953.66
37 Sokolov, Andrey Y263148 #7825.61
38 Malaniuk, Vladimir P263148 #7931.28
39 Polugaevsky, Lev A2630500.1% #8253.94
40 Yurtaev, Leonid262854 #8729.50
41 Hjartarson, Jóhann262648 #8325.73
42 Smagin, Sergey262549 #8630.15
43 Chandler, Murray G262448 #8528.57
44 Dolmatov, Sergey V262450 #8829.70
45 Georgiev, Kiril262249 #8822.92
46 Razuvaev, Yury S261951 #9343.06
47 Vladimirov, Evgeny Y261953 #9531.78
48 Gurevich, Mikhail N261949 #9229.69
49 Romanishin, Oleg M261848 #9336.81
50 Dokhoian, Yury261751 #9624.01
51 Dvoiris, Semen I2616580.1% #10229.99
52 Vyzmanavin, Alexey261352 #10128.83
53 Torre, Eugenio261250 #10036.98
54 Hort, Vlastimil261250 #10044.80
55 Tseshkovsky, Vitaly V261250 #10144.10
56 Dautov, Rustem261154 #10422.92
57 Dreev, Alexey261051 #10319.78
58 Smyslov, Vassily V260852 #10767.60
59 Balashov, Yury S260549 #10739.63
60 Sveshnikov, Evgeny E260352 #11238.72
61 Ubilava, Elizbar E260255 #11638.18
62 Kharitonov, Andrey Y259850 #11529.57
63 Dorfman, Iosif D259650 #11836.50
64 Christiansen, Larry M259649 #11632.34
65 Kuzmin, Gennady P259254 #12542.78
66 Pigusov, Evgeny259151 #12427.58
67 Bareev, Evgeny259050 #12521.94
68 Rozentalis, Eduardas259052 #12625.43
69 Naumkin, Igor258953 #12723.22
70 Murey, Yakov258752 #13047.24
71 Smirin, Ilia258651 #13020.78
72 Kruppa, Yuri258656 #13324.36
73 Kholmov, Ratmir D258554 #13263.47
74 Lerner, Konstantin Z258552 #13138.67
75 Sokolov, Ivan258552 #13120.38
76 Huzman, Alexander258452 #13126.56
77 Rashkovsky, Nukhim N258351 #13242.54
78 Yermolinsky, Alex V258352 #13330.55
79 Krasenkow, Michal258255 #13624.96
80 Ionov, Sergey2581710.1% #14726.81
81 Anand, Viswanathan258153 #13618.89
82 Panchenko, Alexander N258054 #13935.07
83 Gorelov, Sergey G257959 #14331.20
84 Chekhov, Valery A257851 #13732.92
85 Dlugy, Maxim257850 #13722.76
86 Nogueiras, Jesus257748 #13629.29
87 Goldin, Alexander257754 #14023.68
88 Oll, Lembit257751 #13922.52
89 Aseev, Konstantin N257655 #14228.03
90 Kupreichik, Viktor D257550 #13939.33
91 Epishin, Vladimir257553 #14223.30
92 Arkhipov, Sergey257457 #14534.36
93 Lobron, Eric257449 #14028.48
94 Podgaets, Mikhail Y257466 #15241.27
95 Kaidanov, Gregory S257351 #14229.05
96 Ftácnik, Lubomír257350 #14231.00
97 Pintér, József257251 #14234.97
98 Benjamin, Joel L257249 #14324.64
99 Miles, Anthony J257249 #14333.52
100 Adorján, András257150 #14438.58
101 Neverov, Valery257153 24.36
102 Timoshchenko, Gennady257150 39.51
103 van der Wiel, John T H257148 29.23
104 Vaisser, Anatoli257052 39.65
105 Sosonko, Gennadi256851 45.45
106 Kavalek, Lubomir256757 45.23
107 Greenfeld, Alon256653 24.54
108 Mikhalchishin, Adrian B256550 33.95
109 Vasiukov, Evgeny A256357 55.65
110 Makarichev, Sergey Y256355 34.95
111 Dzindzichashvili, Roman Y256255 44.49
112 Karlsson, Lars256050 33.30
113 Darga, Klaus V255968 54.69
114 Kuzmin, Alexey255856 25.65
115 Didishko, Vereslav255765 39.56
116 Sorokin, Maxim255658 20.77
117 Morovic Fernández, Iván E255656 25.60
118 Franco Ocampos, Zenon255559 32.47
119 Fedorowicz, John P255549 30.09
120 Arnason, Jon L255550 27.96
121 Popovic, Petar255550 29.71
122 Zaichik, Gennady L255450 31.72
123 Kochiev, Alexander255455 32.60
124 Hansen, Curt255349 24.12
125 deFirmian, Nicholas E255351 31.26
126 Csom, István255251 48.41
127 Novikov, Igor A255250 26.44
128 Quinteros, Miguel A255257 40.84
129 Todorcevic, Miodrag255254 47.97
130 Kudrin, Sergey255150 29.15
131 Shereshevsky, Mikhail I254871 38.53
132 Soppe, Guillermo254765 28.12
133 Janjgava, Lasha254753 18.49
134 Kveinys, Aloyzas254661 26.31
135 Reshevsky, Samuel H254671 76.92
136 Shabanov, Yury F254662 50.96
137 Browne, Walter S254651 39.81
138 Glek, Igor V254556 26.98
139 Hellers, Ferdinand254551 19.76
140 Najdorf, Miguel254564 78.54
141 Olafsson, Helgi254549 32.21
142 Uhlmann, Wolfgang254551 53.59
143 Rogers, Ian254450 28.35
144 Kurajica, Bojan254461 40.95
145 Liberzon, Vladimir M254363 51.61
146 Bagirov, Vladimir K254356 52.21
147 Taimanov, Mark E254274 62.73
148 Kindermann, Stefan254148 28.84
149 Spraggett, Kevin B254153 33.97
150 Suba, Mihai254051 41.41
151 Mokrý, Karel254051 29.73
152 Panno, Oscar R253957 53.62
153 Ivanov, Alexander V253864 32.50
154 Yakovich, Yuri253855 25.92
155 Adams, Michael253756 16.95
156 Cebalo, Mišo253751 43.73
157 Lalic, Bogdan253752 24.65
158 Gaprindashvili, Nona253757 47.49
159 Ulibin, Mikhail253758 17.42
160 Chiburdanidze, Maia G253751 27.79
161 Marjanovic, Slavoljub253650 33.82
162 Gipslis, Aivars253656 51.73
163 Lanka, Zigurds253559 28.44
164 Kiselev, Sergey253557 27.13
165 Hulak, Krunoslav253552 37.43
166 Pétursson, Margeir253549 28.71
167 García Gonzáles, Guillermo253351 34.89
168 Antunes, Antonio253265 26.73
169 Gheorghiu, Florin253152 44.57
170 Kalinitschew, Sergey253168 32.74
171 Ivanovic, Božidar253152 42.19
172 Savon, Vladimir A253162 48.10
173 Kovalev, Andrei253169 26.98
174 Schussler, Harry253053 31.35
175 Shneider, Aleksandr253058 26.44
176 Mestel, A Jonathan253053 31.63
177 Moskalenko, Viktor252955 27.91
178 Pfleger, Helmut252957 45.23
179 Guseinov, Aidyn252959 36.83
180 Gligoric, Svetozar252956 65.74
181 Adianto, Utut252963 23.62
182 Smejkal, Jan252951 42.61
183 Kengis, Edvins252855 29.55
184 Rohde, Michael A252751 29.18
185 Barua, Dibyendu252755 22.01
186 Cámpora, Daniel H252752 31.34
187 Bischoff, Klaus252650 27.39
188 Hodgson, Julian M252549 25.27
189 Bönsch, Uwe252549 30.04
190 Sturua, Zurab252576 29.40
191 Cvitan, Ognjen252550 27.06
192 Knaak, Rainer F252550 35.62
193 Donchev, Dimitar I252457 30.28
194 Groszpeter, Attila252451 28.39
195 Basin, Leonid252358 30.93
196 Giorgadze, Giorgi252363 24.06
197 Kovacevic, Vladimir252254 46.60
198 Simic, Radoslav252159 40.39
199 Ekstroem, Roland252158 32.44
200 Sahovic, Dragutin252061 48.23
201 Kantsler, Boris252058 26.54
202 Gufeld, Eduard E252057 52.62
203 Illescas Cordoba, Miguel252055 22.91
204 Savchenko, Stanislav251963 21.78
205 Faragó, Iván251849 42.58
206 Veingold, Aleksander251865 35.06
207 Velimirovic, Dragoljub251851 46.47
208 Cifuentes Parada, Roberto251754 30.86
209 Mochalov, Evgeny V251667 37.01
210 Ivanov, Igor V251655 41.81
211 Byrne, Robert E251661 60.53
212 Gruenfeld, Yehuda251553 32.67
213 Watson, William N251549 26.54
214 Wedberg, Tom251551 34.92
215 King, Daniel J251551 25.17
216 Palatnik, Semen A251556 38.60
217 Rodriguez, Amador251450 32.15
218 Geller, Efim P251451 63.66
219 Barbero, Gerardo F251453 27.19
220 Petrienko, Vladimir251469 33.64
221 Kozlov, V.251261
222 Inkiov, Ventzislav251251 32.45
223 Seret, Jean Luc251265
224 Legky, Nikolay A251169 33.55
225 Graf, Alexander251153 26.18
226 Vitolinš, Alvis251161 42.38
227 Govedarica, Radovan251067 40.71
228 Andrianov, Nikolai250973 26.86
229 Frias, Victor J250956 32.72
230 Nikolac, Juraj250859 56.52
231 Vogt, Lothar H250850 36.79
232 Sunye Neto, Jaime250756 31.49
233 Root, Douglas250775 25.72
234 Zagrebelny, Sergey250658
235 Flear, Glenn C250650 29.72
236 Hickl, Joerg250651 23.54
237 London, Dimitri250674 25.94
238 Murshed, Niaz250659 22.47
239 Bronstein, David I250462 64.70
240 Loginov, Valery A250354 32.88
241 Lukin, Andrei M250265 40.17
242 Dizdar, Goran250051 29.91
243 Vera, Reynaldo250055 27.81
244 Lau, Ralf250049 29.03
245 Magerramov, Elmar S250057 30.56
246 Xu Jun249957 26.12
247 Stoica, Valentin249960 38.71
248 Tringov, Georgy P249959 51.65
249 Alburt, Lev O249852 43.19
250 Tischbierek, Raj249852 26.10
251 Anastasian, Ashot249857 24.29
252 Sideif Sade, Fikret I249858 36.83
253 Ermenkov, Evgenij249853 39.09
254 Vukic, Milan249875 45.20
255 Granda Zuńiga, Julio E249751 21.68
256 Jansa, Vlastimil249650 45.92
257 Tseitlin, Mikhail S249661 41.37
258 Antoshin, Vladimir S249676 59.46
259 Barlov, Dragan249651 31.75
260 Klaric, Zlatko249662 32.02
261 Nijboer, Friso249558 23.43
262 Rajkovic, Dusan249554 46.37
263 Velikov, Petar249554 37.59
264 Ninov, Kiril249454 20.06
265 Fokin, Sergey249462 33.05
266 Hebden, Mark249452 30.71
267 Meduna, Eduard249451 38.14
268 Garcia Palermo, Carlos249450 34.91
269 Plaskett, Jim249352 28.62
270 Zapata, Alonso249350 30.19
271 Georgadze, Tamaz V249361 40.97
272 Rivas Pastor, Manuel249356 28.30
273 Espig, Lutz249356 39.82
274 Ostermeyer, Peter249268 45.05
275 Mainka, Romuald249256 25.46
276 Nemet, Ivan249260 45.55
277 Ernst, Thomas249152 28.20
278 Hazai, Laszlo249151 35.38
279 Foisor, Ovidiu249052 29.57
280 Wilder, Michael249051 26.12
281 Horvath, Jozsef249051 24.22
282 Petrosian, Arshak B249052 34.87
283 Eslon, Jaan249073 36.66
284 Meyer, E.249074
285 Unzicker, Wolfgang248958 63.35
286 Meister, Yakov248963 33.14
287 Okhotnik, Vladimir248860 38.67
288 Abramovic, Boško248851 37.71
289 Van der Sterren, Paul248750 32.62
290 Georgiev, Krum248753 30.44
291 Renet, Olivier248752 23.86
292 Mohr, Stefan248652 21.02
293 Valkesalmi, Kimmo248655 27.50
294 Efimov, Igor248664 28.12
295 Kurtenkov, Atanas248673 25.24
296 Ree, Hans248457 44.13
297 Ghinda, Mihail Viorel248455 39.27
298 Yrjola, Jouni248352 29.02
299 Lein, Anatoly248355 57.59
300 Shamkovich, Leonid A248361 65.41
301 Drasko, Milan248351 25.90
302 Gutman, Lev248351 43.10
303 Wahls, Matthias248252 20.76
304 McKay, Roderick M248272 36.72
305 Gruenberg, Hans Ulrich248254 32.81
306 Polgar, Zsuzsa248250 19.53
307 Popchev, Milko248252 23.96
308 Damljanovic, Branko248253 27.37
309 Rogulj, Branko248271 37.25
310 Sznapik, Aleksander248152 37.72
311 Ornstein, Axel248059 36.52
312 Marangunic, Srdjan248063 44.99
313 Li Zunian248066 30.81
314 Tisdall, Jonathan D247953 30.18
315 Ionescu, Constantin247955 30.13
316 Rodriguez Vargas, Orestes247959 45.32
317 Raicevic, Momcilo247966
318 Stohl, Igor247853 24.09
319 Serper, Grigory247852 19.13
320 Ivkov, Borislav247857 54.96
321 Gomez Baillo, Jorge H247863 29.53
322 Hecht, Hans-Joachim247761 49.76
323 Rukavina, Josip247762 45.92
324 Joksic, Sinisa247673 48.06
325 Skembris, Spyridon247658 30.69
326 Karpman, Vadim247661 23.47
327 Lukacs, Peter247648 38.31
328 Malisauskas, Vidmantas247555 25.24
329 Gabdrakhmanov, Rafail247575 29.40
330 Fernandez Garcia, Jose Luis247461 34.49
331 Lombardy, William J247465 50.91
332 Kishnev, Sergey247365 31.99
333 Reyes, Juan247372 25.51
334 Lechtynsky, Jiri247353 40.93
335 Ruban, Vadim247360 24.38
336 Filipovic, Branko247359 31.07
337 Davies, Nigel R247250 28.25
338 Petkevich, Jusefs247264 47.87
339 Akhmilovskaya, Elena247170
340 Nun, Josef247175 55.27
341 Renman, Nils Gustaf247163
342 Milos, Gilberto247154 25.00
343 Schmidt, Wlodzimierz247150 45.56
344 Schlosser, Philipp247168 20.20
345 Marin, Mihail247055 23.53
346 Akopian, Vladimir247055 16.90
347 Gurgenidze, Bukhuti I246961 54.96
348 Hansen, Lars Bo246952 20.10
349 Lukov, Valentin246957 32.89
350 Ostojic, Predrag246967 50.69
351 Rechlis, Gad246956 21.74
352 Schneider, Lars Ake246958
353 Khenkin, Igor246961 20.61
354 Piasetski, Leon David246872
355 Andres Mendez, Miguel246866
356 Zilberstein, Valery I246866 45.55
357 Padevsky, Nikola B246868 55.42
358 Matulovic, Milan246858 53.39
359 Řgaard, Leif246865 36.82
360 Gavrilov, Alexei246776 18.31
361 Pekarek, Ales246752 26.87
362 Mednis, Edmar J246757 51.61
363 Wolf, Volker246663 31.15
364 Kosten, Anthony C246650 30.27
365 Garcia, Gildardo246656 34.64
366 Dueball, Juergen246671 43.59
367 Szekely, Peter246556 33.73
368 Dizdarevic, Emir246554 30.58
369 Helmers, Knut J246475 31.73
370 Braga, Fernando246455 30.31
371 Pytel, Krzysztof246473 43.46
372 Belov, Igor246471
373 Verduga, Denis Homero246360
374 Polasek, Jaroslav246363 31.59
375 Ambroz, Jan246366 34.37
376 Kogan, Boris246359
377 Gruenenwald, Joerg246361 23.41
378 Portisch, Ferenc246267 49.56
379 Winants, Luc246151 25.83
380 Staniszewski, Piotr246153 22.16
381 Reefschlaeger, Helmut246162 44.56
382 Zaitsev, Igor A246166 50.43
383 Gurevich, Dmitry246051 32.14
384 Knezevic, Milorad246054 51.99
385 Mortensen, Erling246055 33.57
386 Vokác, Marek246053 29.90
387 Kraidman, Yair245870 55.99
388 Nun, Jiri245857 31.26
389 Keitlinghaus, Ludger245856 23.27
390 Pedersen, Erik245871 30.14
391 Hawelko, Marek245852 29.22
392 Plachetka, Jan245750 43.70
393 Yap, Andronico245767
394 Khasin, Alexander245760 37.51
395 Kouatly, Bachar245750 30.66
396 Ryskin, Alexander245766 25.80
397 Schoenthier, Frank245675 29.95
398 Timoshenko, Georgy245675 22.41
399 Klinger, Josef245651 21.40
400 Barbulescu, Dan245659 24.36
401 Norwood, David245555 20.08
402 Blatny, Pavel245452 20.36
403 Hertneck, Gerald245452 25.12
404 Rubinetti, Jorge A245463 43.58
405 Ziatdinov, Raset245361 29.84
406 Tempone, Marcelo245360 26.15
407 Levitt, Jonathan245352 25.41
408 Ioseliani, Nana245356 26.72
409 Radulov, Ivan245355 49.81
410 Zhuravliov, Valerij245269 49.89
411 Rachels, Stuart245262 19.10
412 Levin, Felix245264 29.98
413 Cramling, Dan245262 29.74
414 Piket, Jeroen245251 19.76
415 Sigurjónsson, Gudmundur245262 41.10
416 Veinger, Itzhak245160 50.32
417 Djuric, Stefan245152 33.26
418 Nikolic, Zivoslav245155 34.88
419 Negulescu, Adrian245057 27.39
420 Ardiansyah, Haji245067 36.90
421 Haba, Petr245057 23.82
422 Popov, Luben244962 52.76
423 Litvinov, Vladimir244767 47.29
424 Kamsky, Gata244761 14.41
425 Klundt, Klaus244758 46.85
426 Orso, Miklos244770 32.40
427 Saltaev, Mihail244660 25.94
428 Kolev, Atanas244663 21.29
429 Tolnai, Tibor244552 24.11
430 Birnboim, Nathan244555 37.92
431 Zysk, Robert244556 22.49
432 Prandstetter, Eduard244452 39.88
433 Kotronias, Vasilios244452 24.18
434 Pribyl, Josef244455 41.05
435 Schmittdiel, Eckhard244455 28.47
436 Neckar, Lubomir244363 38.24
437 Spiridonov, Nikola244357 50.67
438 Conquest, Stuart244350 21.66
439 Janovsky, Sergey244370 28.70
440 Motwani, Paul244259 26.38
441 Makropoulos, Georgios244264 35.09
442 Sadler, Matthew244265 14.46
443 Trapl, Jindrich244269 46.60
444 Cabrilo, Goran244156 30.33
445 Leski, Marc244175 27.35
446 Vallifuoco, Giacomo244074 31.49
447 Bukal, Vladimir Sr244057 48.99
448 Karasev, Vladimir I244069 50.37
449 Magomedov, Magaram243967 22.45
450 Spassov, Liuben243961 45.61
451 Lalev, Dimitar243861 28.79
452 Solozhenkin, Evgeniy243868 22.25
453 Rakic, Tomislav243762 53.96
454 Ye Jiangchuan243772 27.94
455 Toshkov, Tihomir243757 28.94
456 Krnic, Zdenko243764 41.08
457 Shabalov, Alexander243754 21.13
458 Wolff, Patrick G243655 20.71
459 Handoko, Edhi243666 28.17
460 Piesina, Gintautas243663 36.56
461 Imanaliev, Taalaibek243571
462 Kallai, Gabor243560 29.69
463 Benko, Pal C243563 60.29
464 Mariotti, Sergio243572 42.22
465 Ochoa de Echaguen, F Javier243464 34.16
466 Howell, James C243461 21.45
467 Horváth, Csaba243453 20.40
468 Lanc, Alois243452 40.70
469 Liang Jinrong243467 28.44
470 Soltis, Andrew E243360 41.42
471 Bonin, Jay R243363 33.31
472 Maksimovic, Branimir243257 33.21
473 Kirov Ivanov, Nino243257 43.14
474 Kuligowski, Adam243260 32.85
475 Santos, Luis243271 33.34
476 Wirthensohn, Heinz243259 37.49
477 Casper, Thomas243154 29.62
478 Petran, Pal243157 42.13
479 Thorsteins, Karl243153 24.05
480 Graf, Juergen243160 25.59
481 Gleizerov, Evgeny243162 25.61
482 Semkov, Semko243153 28.67
483 Bilek, István243071 56.22
484 Arkell, Keith C243057 27.81
485 Bellin, Robert243065 36.34
486 Nowak, Ignacy243062 39.80
487 Boey, Josef242970 54.46
488 Kelecevic, Nedeljko242974 41.64
489 Pieterse, Gert242957 26.70
490 Semeniuk, Alexander A242964 36.14
491 Baburin, Alexander242967 21.70
492 Bartels, Hans A242968 32.51
493 Wittmann, Walter242959 40.63
494 Schulte, Oliver242960 19.86
495 Szmetan, Jorge242858 38.43
496 Brueckner, Thomas242867 25.26
497 Hug, Werner242861 36.14
498 Qi Jingxuan242769 40.97
499 Rigo, Janos242761 40.01
500 Franic, Milan242675 24.34

These ratings, calculated as of October 31, 1988, incorporate all games (against rated opponents) played in the time between November 1, 1987 and October 31, 1988, along with the ratings that were already calculated as of October 31, 1987. 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, 1988. This represents the player's estimated strength on November 1, 1988.

+/- 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, 1988. The +/- value represents the standard deviation of that estimate; the player's true strength on November 1, 1988 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, 1988. 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, 1988. 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.

Back to top

Home