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Top 10 active players as of September 30, 1997

  #  

Player Rating +/-
1 Kasparov, Garry K285848
2 Anand, Viswanathan283447
3 Kramnik, Vladimir281947
4 Ivanchuk, Vassily278148
5 Topalov, Veselin275647
6 Karpov, Anatoly E274947
7 Kamsky, Gata273551
8 Shirov, Alexei271447
9 Gelfand, Boris271047
10 Bareev, Evgeny270548

About these ratings

Top 500 active players as of September 30, 1997

  #  

Player Rating +/- Best? 75%? Age
1 Kasparov, Garry K28584849.3% #334.46
2 Anand, Viswanathan28344725.8% #427.80
3 Kramnik, Vladimir28194716.3% #422.26
4 Ivanchuk, Vassily2781484.4% #828.53
5 Topalov, Veselin2756471.6% #1122.54
6 Karpov, Anatoly E2749471.0% #1346.35
7 Kamsky, Gata2735510.8% #1823.33
8 Shirov, Alexei2714470.1% #2525.24
9 Gelfand, Boris2710470.1% #2629.27
10 Bareev, Evgeny2705480.1% #2930.86
11 Salov, Valery B2695500.1% #3633.34
12 Svidler, Peter2694480.1% #3521.29
13 Adams, Michael269147 #3725.87
14 Rublevsky, Sergei268849 #4122.95
15 Dreev, Alexey268848 #4028.69
16 Georgiev, Kiril268749 #4131.84
17 Polgar, Judit268348 #4421.19
18 Gurevich, Mikhail N267549 #5038.61
19 Khalifman, Alexander267147 #5231.70
20 Beliavsky, Alexander G266848 #5543.79
21 Akopian, Vladimir266749 #5625.81
22 Short, Nigel D266748 #5732.33
23 Almasi, Zoltan266247 #6021.09
24 Nikolic, Predrag266148 #6337.05
25 Tiviakov, Sergei265748 #6624.63
26 Zvjaginsev, Vadim265749 #6721.12
27 Leko, Peter265547 #6718.06
28 Jussupow, Artur M265548 #6937.63
29 Krasenkow, Michal265348 #7033.88
30 Oll, Lembit265248 #7131.44
31 Azmaiparashvili, Zurab A264850 #7737.54
32 Sadler, Matthew264650 #7923.37
33 Lautier, Joel263847 #8624.47
34 Yermolinsky, Alex V263749 #8739.47
35 Rozentalis, Eduardas263748 #8734.34
36 Vaganian, Rafael A263749 #8845.95
37 van Wely, Loek263546 #8724.97
38 Chernin, Alexander M263448 #9137.56
39 Malaniuk, Vladimir P263247 #9240.19
40 Sokolov, Ivan263247 #9329.30
41 Portisch, Lajos263151 #9660.49
42 Eingorn, Viacheslav S262951 #9940.85
43 Seirawan, Yasser262853 #10037.52
44 Korchnoi, Viktor L262746 #9866.52
45 Speelman, Jonathan S262549 #10340.99
46 Savchenko, Stanislav262250 #10630.69
47 Hellers, Ferdinand262255 #11028.67
48 Granda Zuńiga, Julio E262250 #10630.60
49 Dvoiris, Semen I262149 #10838.91
50 Morozevich, Alexander261850 #11120.20
51 Benjamin, Joel L261851 #11233.55
52 Hracek, Zbynek261648 #11227.06
53 Sakaev, Konstantin261549 #11423.46
54 Onischuk, Alexander261549 #11422.07
55 Ehlvest, Jaan261447 #11334.95
56 Alterman, Boris261449 #11627.40
57 Gavrikov, Victor N261353 #11940.17
58 Aleksandrov, Aleksej261349 #11624.38
59 Nunn, John D M261151 #12142.43
60 Piket, Jeroen261046 #11828.67
61 Milov, Vadim261050 #12125.16
62 Timman, Jan H261047 #11945.79
63 Giorgadze, Giorgi260948 #12132.96
64 Smirin, Ilia260948 #12029.69
65 Tukmakov, Vladimir B260848 #12151.54
66 Lastin, Alexander260851 #12420.91
67 Illescas Cordoba, Miguel260648 #12431.82
68 Sturua, Zurab260652 #12838.31
69 Miles, Anthony J260647 #12342.44
70 Huzman, Alexander260553 #12835.47
71 Dautov, Rustem260549 #12631.84
72 Christiansen, Larry M260550 #12641.26
73 Fominyh, Alexander260551 #12838.29
74 Tkachiev, Vladislav260449 #12823.89
75 Torre, Eugenio260159 #13945.90
76 Bologan, Viktor260048 #13125.79
77 Morovic Fernández, Iván E259950 #13334.52
78 Hansen, Curt259849 #13533.03
79 Epishin, Vladimir259847 #13332.22
80 Spasov, Vasil259655 #14026.62
81 Vaisser, Anatoli259649 #13648.57
82 Yakovich, Yuri259548 #13634.83
83 Andersson, Ulf259449 #13846.26
84 Kožul, Zdenko259348 #13831.36
85 Adianto, Utut259352 #14132.54
86 Gulko, Boris F259248 #13950.64
87 Shipov, Sergei259150 #14331.45
88 Hjartarson, Jóhann258948 #14334.64
89 Hodgson, Julian M258948 #14334.18
90 Lerner, Konstantin Z258952 #14647.59
91 Lutz, Christopher258948 #14426.60
92 Fedorov, Alexei258949 #14425.01
93 Graf, Alexander258850 #14635.10
94 Lalic, Bogdan258848 #14433.56
95 Magerramov, Elmar S258866 #15739.47
96 Polgar, Zsuzsa258755 #14928.45
97 Psakhis, Lev B258748 #14538.84
98 Sveshnikov, Evgeny E258649 #14747.63
99 Lputian, Smbat G258551 #14939.63
100 Dolmatov, Sergey V258550 #14938.61
101 Dokhoian, Yury258565 32.92
102 Glek, Igor V258448 35.90
103 Kharitonov, Andrey Y258449 38.49
104 Goldin, Alexander258350 32.59
105 Ljubojevic, Ljubomir258350 46.91
106 Ibragimov, Ildar258248 30.12
107 Hübner, Robert258149 48.90
108 deFirmian, Nicholas E258149 40.18
109 Dorfman, Iosif D258154 45.41
110 Wojtkiewicz, Aleksander258048 34.71
111 Kuzmin, Alexey258061 34.56
112 Beim, Valery258051 47.54
113 Kindermann, Stefan257949 37.76
114 Sutovsky, Emil257849 20.03
115 Korneev, Oleg257747 28.18
116 Wahls, Matthias257749 29.68
117 Sorokin, Maxim257650 29.69
118 Kaidanov, Gregory S257651 37.96
119 Filippov, Valerij257648 21.84
120 Ginsburg, Gennadij257558 26.13
121 Agdestein, Simen257556 30.37
122 Yudasin, Leonid G257548 38.14
123 Wolff, Patrick G257554 29.62
124 Kharlov, Andrei257449 28.86
125 Komarov, Dimitri257450 28.83
126 Pigusov, Evgeny257351 36.50
127 Ftácnik, Lubomír257248 39.91
128 Shneider, Aleksandr257252 35.36
129 Balashov, Yury S257249 48.55
130 Rechlis, Gad257057 30.65
131 Ribli, Zoltán257050 46.06
132 Atalik, Suat257048 32.96
133 Razuvaev, Yury S256850 51.96
134 Kurajica, Bojan256749 49.87
135 Makarov, Marat256751 34.40
136 Movsesian, Sergei256648 18.91
137 Novikov, Igor A256649 35.35
138 Anastasian, Ashot256652 33.20
139 Baburin, Alexander256652 30.61
140 Spraggett, Kevin B256649 42.89
141 Kruppa, Yuri256652 33.27
142 Ivanov, Sergey256550 36.00
143 Voitsekhovsky, Stanislav256553 33.15
144 Timoshenko, Georgy256551 31.33
145 Shulman, Yuri256450 22.42
146 Cvitan, Ognjen256448 35.96
147 Hansen, Lars Bo256450 29.02
148 Pétursson, Margeir256351 37.62
149 Pintér, József256350 43.89
150 Sokolov, Andrey Y256250 34.53
151 Guseinov, Aidyn256259 45.74
152 Kuzmin, Gennady P256252 51.70
153 Ionov, Sergey256152 35.73
154 Serper, Grigory256053 28.04
155 Makarichev, Sergey Y256067 43.87
156 Shabalov, Alexander255851 30.05
157 Rogers, Ian255849 37.27
158 Zaichik, Gennady L255865 40.63
159 Stefansson, Hannes255749 25.20
160 Khenkin, Igor255749 29.52
161 Milos, Gilberto255651 33.91
162 Hickl, Joerg255549 32.45
163 Vyzmanavin, Alexey255552 37.74
164 Bischoff, Klaus255449 36.31
165 Aseev, Konstantin N255449 36.94
166 Iuldachev, Saidali255454 29.66
167 Nijboer, Friso255449 32.34
168 Kengis, Edvins255349 38.47
169 Ikonnikov, Vyacheslav255252 31.54
170 Nisipeanu, Liviu Dieter255250 21.16
171 Brodsky, Michail255250 28.51
172 Gleizerov, Evgeny255251 34.53
173 Muhutdinov, Marat255272 29.87
174 Asrian, Karen255153 17.43
175 Romanishin, Oleg M255148 45.72
176 Smikovski, Ivan255066 25.30
177 Pugachov, Alexey254965 32.09
178 Watson, William N254957 35.45
179 Sherbakov, Ruslan254948 28.04
180 Kavalek, Lubomir254963 54.14
181 Chiburdanidze, Maia G254951 36.70
182 Ruban, Vadim254859 33.30
183 Chandler, Murray G254856 37.49
184 Xu Jun254854 35.04
185 Smagin, Sergey254753 39.06
186 Podgaets, Mikhail Y254566 50.19
187 Dzindzichashvili, Roman Y254555 53.40
188 Kosashvili, Yona254559 27.24
189 Wang Zili254452 29.29
190 Sax, Gyula254449 46.28
191 Zezulkin, Jurij254458 26.12
192 Fishbein, Alexander254465 29.39
193 Dlugy, Maxim254467 31.67
194 Lobron, Eric254449 37.40
195 Gurevich, Dmitry254349 41.05
196 Ye Jiangchuan254351 36.86
197 Palac, Mladen254348 26.62
198 Sagalchik, Gennadij254360 28.44
199 Arkhipov, Sergey254355 43.27
200 Hertneck, Gerald254152 34.03
201 Ulibin, Mikhail254149 26.33
202 Bönsch, Uwe254151 38.95
203 Smejkal, Jan254050 51.52
204 Ilincic, Zlatko254051 29.39
205 King, Daniel J254052 34.09
206 Schlosser, Philipp254049 29.11
207 Vasiukov, Evgeny A253953 64.57
208 Poluljahov, Aleksandr253850 32.31
209 Minasian, Artashes253852 30.69
210 Hebden, Mark253851 39.62
211 Neverov, Valery253851 33.27
212 Yemelin, Vasily253851 21.66
213 Bezgodov, Alexei253854 28.25
214 Fedorowicz, John P253855 39.01
215 Saltaev, Mihail253753 34.86
216 Spangenberg, Hugo253749 21.86
217 Malakhov, Vladimir253651 16.84
218 Gabriel, Christian253550 22.57
219 Mikhalchishin, Adrian B253552 42.87
220 Babula, Vlastimil253550 23.99
221 Dao Thien Hai253550 19.39
222 Dizdarevic, Emir253550 39.49
223 Kotronias, Vasilios253449 33.10
224 Kupreichik, Viktor D253449 48.24
225 Stohl, Igor253448 33.01
226 Volkov, Sergey253450 23.65
227 Kotsur, Pavel253453 23.74
228 Knaak, Rainer F253355 44.54
229 Ivanov, Alexander V253354 41.41
230 Shchekachev, Andrei253351 24.92
231 Strikovic, Aleksa253250 36.38
232 Browne, Walter S253256 48.72
233 Smyslov, Vassily V253251 76.52
234 Chekhov, Valery A253253 41.84
235 Slobodjan, Roman253250 22.74
236 Horvath, Jozsef253147 33.13
237 Marin, Mihail253148 32.44
238 Ubilava, Elizbar E253152 47.09
239 Peng Xiaomin253153 24.48
240 Spassky, Boris V253157 60.67
241 Greenfeld, Alon253150 33.45
242 Nikolenko, Oleg253155 38.28
243 Tseshkovsky, Vitaly V253150 53.01
244 Ivanov, Alexander V2253064 41.41
245 Varga, Z.253061 27.22
246 Popovic, Petar253051 38.63
247 Galkin, Alexander253050 18.66
248 Damljanovic, Branko253049 36.29
249 Golubev, Mihail253053 27.33
250 Davies, Nigel R252952 37.16
251 Kiselev, Sergey252950 36.04
252 Rustemov, Alexander252849 24.23
253 Dizdar, Goran252849 38.82
254 Lanka, Zigurds252849 37.36
255 Yandemirov, Valeri252850 34.63
256 Tregubov, Pavel V252750 25.77
257 Sokolin, Leonid M252766
258 Yuneev, Alexey252669
259 Tischbierek, Raj252650 35.02
260 Kacheishvili, Giorgi252652 20.64
261 Kovacevic, Vladimir252653 55.51
262 Ruzele, Darius252653 29.42
263 Mecking, Henrique252575 45.69
264 Budnikov, Alexandar252569 30.68
265 Miladinovic, Igor252551 23.68
266 Chuchelov, Vladimir252552 28.01
267 Loginov, Valery A252549 41.80
268 van der Wiel, John T H252549 38.14
269 Sosonko, Gennadi252451 54.37
270 Kosten, Anthony C252453 39.18
271 Agrest, Evgenij252451 31.12
272 Emms, John M252450 30.54
273 Orlov, Georgi252463
274 Frolov, Artur252359 27.17
275 Moroz, Alexander252357 36.70
276 Cámpora, Daniel H252351 40.25
277 Rodriguez, Amador252350 41.06
278 Plaskett, Jim252358 37.53
279 Soffer, Ram252153 32.06
280 Burmakin, Vladimir252149 30.31
281 Zarubin, Pavel252168 29.63
282 Van der Sterren, Paul252049 41.54
283 Gausel, Einar252050 33.83
284 Timoshchenko, Gennady252051 48.42
285 Arencibia, Walter252049 30.19
286 Enders, Peter252050 34.66
287 Landa, Konstantin251950 25.36
288 Arnason, Jon L251958 36.88
289 Xie Jun251850 26.91
290 Schandorff, Lars251850 32.44
291 Najer, Evgeniy251753 20.27
292 Irzhanov, Ruslan251754 20.84
293 Hort, Vlastimil251752 53.72
294 Akhmadeev, Vadim251761 41.21
295 Yurtaev, Leonid251654 38.41
296 Shabanov, Yury F251661 59.88
297 Avrukh, Boris251650 19.73
298 Istratescu, Andrei251650 21.82
299 Wells, Peter K251648 32.45
300 Cebalo, Mišo251649 52.65
301 Delchev, Aleksander251550 26.21
302 Blatny, Pavel251548 29.27
303 Ye Rongguang251555 33.98
304 Nielsen, Peter Heine251549 24.35
305 Golod, Vitali251554 26.26
306 Barua, Dibyendu251453 30.92
307 Alburt, Lev O251467 52.11
308 Kovacevic, Vladimir2251470 42.53
309 Maiorov, Oleg251453 26.19
310 Shariyazdanov, Andrey251451 21.22
311 Starosek, Konstantin251369 29.08
312 Olafsson, Helgi251351 41.12
313 Lesiege, Alexandre251354 22.12
314 Liss, Eran251254 22.24
315 Kantsler, Boris251252 35.45
316 Kosic, Dragan251252 27.62
317 Ricardi, Pablo251250 35.60
318 Notkin, Maksim251250 33.80
319 Vaulin, Alexander251149 40.53
320 Kuporosov, Viktor251155 36.01
321 Belikov, Vladimir251152 26.16
322 Maksimenko, Andrei251151 27.81
323 Lugovoi, Aleksei251151 22.57
324 Sermek, Drazen251148 28.67
325 Hulak, Krunoslav251151 46.35
326 Apicella, Manuel250950 27.45
327 Magem Badals, Jordi250949 30.10
328 Bacrot, Etienne250950 14.69
329 Nogueiras, Jesus250950 38.20
330 Miralles, Gilles250955 31.64
331 Groszpeter, Attila250850 37.31
332 Kishnev, Sergey250857 40.91
333 Rytshagov, Mikhail250749 29.88
334 Dyachkov, Sergej250755 20.90
335 Zakharevich, Igor250750 34.21
336 Mikhalevski, Victor250749 25.22
337 Haba, Petr250749 32.73
338 Vorotnikov, Vladislav V250652 50.12
339 Temirbaev, Serik250657
340 Djurhuus, Rune250651 27.68
341 Akesson, Ralf250650 36.64
342 Luther, Thomas250549 27.90
343 Kumaran, Dharshan250555 22.31
344 Gorelov, Sergey G250560 40.12
345 Podzielny, Karl Heinz250558 43.05
346 Stangl, Markus250451 28.42
347 Suba, Mihai250451 50.33
348 Finkel, Alexander250450 22.74
349 Ivanovic, Božidar250354 51.10
350 Dokutchaev, Aleksander250360 25.33
351 Gallagher, Joseph G250349 33.40
352 Tolnai, Tibor250251 33.02
353 Zagrebelny, Sergey250251
354 Malisauskas, Vidmantas250251 34.15
355 Palatnik, Semen A250266 47.51
356 Cifuentes Parada, Roberto250149 39.77
357 Rashkovsky, Nukhim N250152 51.45
358 Legky, Nikolay A250151 42.47
359 Krogius, Nikolay V250161 67.19
360 Hasangatin, Ramil250156 25.24
361 Hamdouchi, Hichem250152 24.97
362 Gyimesi, Zoltan250148 20.50
363 Wu Shaobin250061 28.65
364 Djuric, Stefan250052 42.18
365 Solozhenkin, Evgeniy250052 31.16
366 Vesselovsky, Serguei250054 45.68
367 Tsesarsky, Ilya250062 37.97
368 Kiriakov, Petr250052 22.72
369 Horváth, Csaba249948 29.32
370 Zontakh, Andrey249958 26.90
371 Adorján, András249956 47.50
372 Chernyshov, Konstantin249954 30.30
373 Gavrilakis, Nikolaos249863 42.52
374 Gofshtein, Leonid D249850 44.44
375 Rausis, Igors249848 36.48
376 Krivonosov, Oleg249764 36.38
377 Pavlovic, Milos249751 33.73
378 Feygin, Michail249764 22.66
379 Degraeve, Jean Marc249750 26.68
380 Solomon, Stephen J249660 34.18
381 Kveinys, Aloyzas249649 35.22
382 Zifroni, Dov249653 21.62
383 Manor, Ilan249655 27.92
384 Liang Jinrong249654 37.36
385 Har Zvi, Ronen249553 20.96
386 Velimirovic, Dragoljub249551 55.38
387 Fercec, Nenad249552 36.47
388 Ionescu, Constantin249550 39.05
389 Brenninkmeijer, Joris249559 28.04
390 Tseitlin, Mark D249550 54.02
391 Krakops, Maris249554 19.49
392 Drasko, Milan249450 34.81
393 Egin, Vladimir249454
394 Vogt, Lothar H249453 45.70
395 Comas Fabrego, Luis249453 26.27
396 Mainka, Romuald249451 34.37
397 Kudrin, Sergey249353 38.06
398 Markowski, Tomasz249349 22.17
399 Gluzman, Mikhail249375 30.07
400 Zhuravliov, Valerij249374 58.80
401 Vakhidov, Tahir249356
402 Rodriguez, Andres249351 23.78
403 Bauer, Christian249350 20.72
404 Danielsen, Henrik249350 31.69
405 Kron, Valentin249274 33.05
406 Agamaliev, Djamil249268 23.08
407 Jakubiec, Artur249257 23.82
408 Kobalija, Mihail249151 19.41
409 Lau, Ralf249150 37.94
410 Moskalenko, Viktor249154 36.82
411 Simonovic, Aleksandar249161 28.90
412 Zilberman, Yaacov249156 43.34
413 Annageldyev, Orazly249063 37.53
414 Teske, Henrik249049 29.59
415 Dragomarezkij, Evgeni249056 44.70
416 Shmuter, Leonid249056 28.41
417 Kaminski, Marcin249051 20.55
418 Conquest, Stuart249049 30.58
419 Thorsteins, Karl249066 32.96
420 Namgilov, Sogto248958 36.87
421 Petrosian, Arshak B248957 43.79
422 Ioseliani, Nana248952 35.63
423 Khachian, Melikset248954 27.23
424 Kuczynski, Robert248850 31.45
425 Keitlinghaus, Ludger248849 32.18
426 Mueller, Karsten248853 26.85
427 Badea, Bela248852 28.61
428 Antonio, Rogelio Jr248858 35.61
429 Votava, Jan248848 22.84
430 Wang Pin248869 22.80
431 Didishko, Vereslav248751 48.47
432 Dimitrov, Vladimir248752 29.47
433 Markovic, Miroslav248754 24.39
434 Kolev, Atanas248754 30.21
435 Zarnicki, Pablo248750 24.88
436 Supatashvili, Khvicha248756 28.50
437 Mukhametov, Eldar248753 28.36
438 Kempinski, Robert248649 20.22
439 Anagnostopoulos, Dimitri248651 27.30
440 Vukic, Milan248654 54.11
441 Norwood, David248659 28.98
442 Tisdall, Jonathan D248650 39.09
443 Obukhov, Alexander248658 28.45
444 Nesterov, Jakov248674 30.85
445 Vera, Reynaldo248650 36.73
446 Liiva, Riho248557 22.24
447 Koniushkov, Igor248554 34.84
448 Larsen, Bent248555 62.57
449 Vasquez, Rodrigo248466 27.81
450 Frias, Victor J248467 41.64
451 Cramling, Pia248448 34.44
452 Guliev, Sarhan248451 29.49
453 Bagaturov, Giorgi248453 32.84
454 Janjgava, Lasha248462 27.40
455 Johansen, Darryl K248459 38.65
456 Volzhin, Alexander248450 26.66
457 Klinger, Josef248472 30.31
458 Kholmov, Ratmir D248350 72.38
459 Baklan, Vladimir248353 19.60
460 Quinteros, Miguel A248357 49.76
461 Abramovic, Boško248353 46.63
462 Donchev, Dimitar I248365 39.19
463 Karpman, Vadim248374 32.38
464 Uhlmann, Wolfgang248351 62.50
465 Ryskin, Alexander248366 34.72
466 Sokolovs, Andrei248256 25.60
467 Kazhgaleyev, Murtas248160
468 Nevednichy, Vladislav248151 28.07
469 Rotstein, Arkadij248150 36.42
470 Jansa, Vlastimil248149 54.84
471 Mokrý, Karel248152 38.65
472 Zaitsev, Igor A248150 59.34
473 Geller, Efim P248064 72.58
474 Kovalev, Andrei248052 35.90
475 Richter, Wolfgang248075 29.61
476 Maljutin, Evgeni247963 25.91
477 Howell, James C247953 30.37
478 Georgiev, Vladimir247952 22.09
479 Bezold, Michael247949 25.35
480 Maherramzade, Javad247959 21.38
481 Piskov, Yury247955 35.96
482 Galliamova, Alisa247852 25.70
483 Komliakov, Viktor247849 37.43
484 Kalinin, Alexander247861 29.34
485 Berelovich, Aleksandar247754 30.24
486 Leitao, Rafael247754 17.76
487 Arbakov, Valentin247752 45.67
488 Nikolaidis, Ioannis247651 26.74
489 Gil Capape, Javier247659 30.39
490 Borges Mateos, Juan247656 31.51
491 Meister, Yakov247665 42.05
492 Renet, Olivier247650 32.77
493 Pfleger, Helmut247667 54.15
494 Kalinitschew, Sergey247654 41.66
495 Sherbakov, Vitaly S247668 42.28
496 Popchev, Milko247560 32.88
497 Kakageldyev, Amanmurad247560 47.76
498 Hector, Jonny247549 33.63
499 Kushch, Nikolai247574 35.49
500 Taimanov, Mark E247551 71.65

These ratings, calculated as of September 30, 1997, incorporate all games (against rated opponents) played in the time between October 1, 1996 and September 30, 1997, along with the ratings that were already calculated as of September 30, 1996. 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 September 30, 1997. This represents the player's estimated strength on October 1, 1997.

+/- 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 October 1, 1997. The +/- value represents the standard deviation of that estimate; the player's true strength on October 1, 1997 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 October 1, 1997. 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 September 30, 1997. 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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