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Top 10 active players as of April 30, 1998

  #  

Player Rating +/-
1 Kasparov, Garry K284349
2 Anand, Viswanathan282347
3 Kramnik, Vladimir282147
4 Ivanchuk, Vassily278748
5 Karpov, Anatoly E275847
6 Shirov, Alexei275546
7 Adams, Michael273346
8 Gelfand, Boris273047
9 Kamsky, Gata272953
10 Topalov, Veselin272447

About these ratings

Top 500 active players as of April 30, 1998

  #  

Player Rating +/- Best? 75%? Age
1 Kasparov, Garry K28434940.7% #335.05
2 Anand, Viswanathan28234723.1% #428.39
3 Kramnik, Vladimir28214721.8% #422.85
4 Ivanchuk, Vassily2787487.2% #829.12
5 Karpov, Anatoly E2758472.1% #1246.93
6 Shirov, Alexei2755461.7% #1325.82
7 Adams, Michael2733460.6% #1926.45
8 Gelfand, Boris2730470.4% #2029.85
9 Kamsky, Gata2729530.9% #2323.91
10 Topalov, Veselin2724470.4% #2323.12
11 Svidler, Peter2723480.4% #2321.87
12 Bareev, Evgeny2703490.1% #3431.44
13 Rublevsky, Sergei2696500.1% #3923.54
14 Dreev, Alexey2692490.1% #4229.28
15 Short, Nigel D2689480.1% #4332.91
16 Georgiev, Kiril2687490.1% #4532.42
17 Akopian, Vladimir268549 #4726.40
18 Polgar, Judit267648 #5421.77
19 Krasenkow, Michal267348 #5634.46
20 Beliavsky, Alexander G266848 #6044.37
21 Zvjaginsev, Vadim266749 #6321.70
22 Jussupow, Artur M266548 #6438.21
23 Khalifman, Alexander266247 #6732.28
24 Leko, Peter266148 #6818.64
25 Tiviakov, Sergei266148 #6825.21
26 Salov, Valery B265750 #7233.92
27 Sadler, Matthew265648 #7323.95
28 Almasi, Zoltan265548 #7421.67
29 Azmaiparashvili, Zurab A265251 #7938.12
30 Gurevich, Mikhail N265248 #7839.19
31 Lautier, Joel264947 #8025.05
32 Morozevich, Alexander264949 #8120.78
33 Oll, Lembit264848 #8132.02
34 Timman, Jan H264548 #8546.38
35 Sakaev, Konstantin264549 #8624.05
36 Seirawan, Yasser264452 #8938.10
37 Nikolic, Predrag264248 #8937.64
38 van Wely, Loek264246 #8825.56
39 Tkachiev, Vladislav264049 #9224.47
40 Yermolinsky, Alex V263850 #9540.05
41 Onischuk, Alexander263849 #9422.66
42 Milov, Vadim263749 #9525.75
43 Dautov, Rustem263749 #9532.42
44 Sokolov, Ivan263647 #9429.88
45 Eingorn, Viacheslav S263250 #10141.43
46 Hellers, Ferdinand263155 #10629.26
47 Vaganian, Rafael A263049 #10446.54
48 Granda Zuńiga, Julio E262950 #10531.18
49 Christiansen, Larry M262950 #10441.84
50 Tukmakov, Vladimir B262750 #10752.12
51 Korchnoi, Viktor L262747 #10567.10
52 Lputian, Smbat G262550 #11040.21
53 Illescas Cordoba, Miguel262349 #11132.41
54 Hracek, Zbynek262348 #11027.64
55 Piket, Jeroen262247 #11029.26
56 Rozentalis, Eduardas262148 #11434.92
57 Chernin, Alexander M262048 #11338.15
58 Smirin, Ilia261949 #11630.28
59 Adianto, Utut261851 #12033.12
60 Ehlvest, Jaan261747 #11735.54
61 Giorgadze, Giorgi261548 #11933.55
62 Graf, Alexander261550 #12235.68
63 Sturua, Zurab261553 #12438.89
64 Atalik, Suat261448 #12033.55
65 Ibragimov, Ildar261348 #12230.71
66 Speelman, Jonathan S261249 #12441.58
67 Hansen, Curt261149 #12633.62
68 Hjartarson, Jóhann261049 #12735.23
69 Shipov, Sergei260951 #13032.04
70 Andersson, Ulf260849 #12946.84
71 Fominyh, Alexander260852 #13138.87
72 Fedorov, Alexei260850 #13025.59
73 Lutz, Christopher260848 #12827.18
74 Sveshnikov, Evgeny E260750 #12948.22
75 Baburin, Alexander260752 #13131.20
76 Voitsekhovsky, Stanislav260751 #13133.73
77 Minasian, Artashes260651 #13331.28
78 Malaniuk, Vladimir P260647 #13140.78
79 Aleksandrov, Aleksej260449 #13424.96
80 Dvoiris, Semen I260349 #13439.49
81 deFirmian, Nicholas E260349 #13640.76
82 Dolmatov, Sergey V260351 #13739.19
83 Alterman, Boris260149 #13727.98
84 Khenkin, Igor260048 #13730.11
85 Miles, Anthony J260047 #13743.02
86 Volkov, Sergey259850 #14124.23
87 Korneev, Oleg259848 #13928.76
88 Wahls, Matthias259849 #14130.26
89 Kaidanov, Gregory S259852 #14238.55
90 Epishin, Vladimir259748 #14132.80
91 Movsesian, Sergei259748 #14119.49
92 Benjamin, Joel L259450 #14634.14
93 Savchenko, Stanislav259351 #14731.28
94 Rogers, Ian259349 #14537.85
95 Huzman, Alexander259352 #14736.05
96 Ljubojevic, Ljubomir259350 #14647.49
97 Portisch, Lajos259251 #14861.07
98 Morovic Fernández, Iván E259251 #14835.10
99 Kavalek, Lubomir259265 #15854.72
100 Polgar, Zsuzsa259258 #15329.03
101 Psakhis, Lev B259148 39.42
102 Timoshenko, Georgy259051 31.91
103 Lastin, Alexander258951 21.50
104 Gulko, Boris F258949 51.22
105 Glek, Igor V258848 36.48
106 Komarov, Dimitri258850 29.41
107 Hansen, Lars Bo258852 29.60
108 Filippov, Valerij258849 22.42
109 Asrian, Karen258851 18.02
110 Beim, Valery258751 48.12
111 Nunn, John D M258751 43.01
112 Pintér, József258750 44.47
113 Shabalov, Alexander258651 30.63
114 Yakovich, Yuri258648 35.42
115 Goldin, Alexander258651 33.18
116 Wolff, Patrick G258656 30.21
117 Ribli, Zoltán258650 46.65
118 Sutovsky, Emil258549 20.61
119 Kharitonov, Andrey Y258549 39.07
120 Bologan, Viktor258548 26.38
121 Balashov, Yury S258449 49.13
122 Romanishin, Oleg M258148 46.30
123 Magerramov, Elmar S258171 40.05
124 Kengis, Edvins258150 39.05
125 Pigusov, Evgeny258151 37.08
126 Gavrikov, Victor N257952 40.75
127 Kožul, Zdenko257948 31.94
128 Ftácnik, Lubomír257848 40.50
129 Hübner, Robert257850 49.48
130 Wojtkiewicz, Aleksander257849 35.29
131 Kuzmin, Alexey257865 35.14
132 Vaisser, Anatoli257750 49.15
133 Anastasian, Ashot257652 33.79
134 Lerner, Konstantin Z257651 48.17
135 Yudasin, Leonid G257649 38.73
136 Milos, Gilberto257551 34.50
137 Kharlov, Andrei257549 29.44
138 Rechlis, Gad257258 31.23
139 Razuvaev, Yury S257151 52.55
140 Hickl, Joerg257150 33.04
141 Cvitan, Ognjen257147 36.55
142 Xu Jun257153 35.62
143 Sokolov, Andrey Y257050 35.11
144 Hodgson, Julian M257048 34.76
145 Serper, Grigory256954 28.63
146 Arkhangelsky, Boris256868 67.28
147 Pétursson, Margeir256853 38.21
148 Ionov, Sergey256753 36.31
149 Vyzmanavin, Alexey256754 38.33
150 Torre, Eugenio256757 46.49
151 Ulibin, Mikhail256648 26.91
152 Damljanovic, Branko256550 36.87
153 Bischoff, Klaus256449 36.89
154 Lalic, Bogdan256447 34.14
155 Ruban, Vadim256464 33.88
156 Shneider, Aleksandr256355 35.93
157 Varga, Z.256361 27.80
158 Malakhov, Vladimir256351 17.43
159 Guseinov, Aidyn256160 46.33
160 Rustemov, Alexander256150 24.82
161 Kotsur, Pavel256153 24.32
162 Ginsburg, Gennadij256062 26.72
163 Pugachov, Alexey255972 32.67
164 Podgaets, Mikhail Y255969 50.77
165 Sorokin, Maxim255950 30.27
166 Kruppa, Yuri255852 33.86
167 Dizdar, Goran255849 39.40
168 Novikov, Igor A255849 35.93
169 Gurevich, Dmitry255850 41.64
170 Ikonnikov, Vyacheslav255753 32.12
171 Kuzmin, Gennady P255651 52.28
172 Spasov, Vasil255557 27.20
173 Dorfman, Iosif D255553 45.99
174 Palac, Mladen255548 27.20
175 Golod, Vitali255553 26.84
176 Tregubov, Pavel V255549 26.36
177 Stohl, Igor255548 33.59
178 Golubev, Mihail255356 27.91
179 Burmakin, Vladimir255348 30.90
180 Spraggett, Kevin B255349 43.47
181 Kurajica, Bojan255249 50.46
182 Gabriel, Christian255249 23.16
183 Babula, Vlastimil255249 24.58
184 Ye Jiangchuan255253 37.44
185 Hertneck, Gerald255251 34.62
186 Kindermann, Stefan255149 38.34
187 Nisipeanu, Liviu Dieter255150 21.75
188 Agdestein, Simen255056 30.95
189 Delchev, Aleksander255050 26.79
190 Sherbakov, Ruslan255049 28.63
191 Gleizerov, Evgeny254950 35.11
192 Ivanov, Sergey254950 36.59
193 Makarov, Marat254952 34.97
194 Kosashvili, Yona254862 27.82
195 Iuldachev, Saidali254855 30.25
196 Peng Xiaomin254854 25.06
197 Yurtaev, Leonid254852 38.99
198 Landa, Konstantin254849 25.93
199 Knaak, Rainer F254855 45.12
200 Solozhenkin, Evgeniy254751 31.75
201 Spassky, Boris V254754 61.25
202 Markovic, Miroslav254752 24.97
203 Soffer, Ram254756 32.65
204 Shulman, Yuri254750 23.00
205 Ilincic, Zlatko254651 29.97
206 Stefansson, Hannes254649 25.78
207 Dzindzichashvili, Roman Y254558 53.98
208 Fedorowicz, John P254557 39.59
209 Wu Shaobin254562 29.24
210 Shariyazdanov, Andrey254551 21.80
211 Lobron, Eric254550 37.97
212 Emms, John M254450 31.13
213 Sax, Gyula254448 46.87
214 Smagin, Sergey254456 39.64
215 Vasiukov, Evgeny A254358 65.15
216 Galkin, Alexander254349 19.25
217 Smikovski, Ivan254365 25.88
218 Hamdouchi, Hichem254351 25.56
219 Baklan, Vladimir254252 20.18
220 Dlugy, Maxim254173 32.25
221 Frolov, Artur254165 27.75
222 Yemelin, Vasily254151 22.25
223 Slobodjan, Roman254050 23.33
224 Kacheishvili, Giorgi254054 21.22
225 Chiburdanidze, Maia G254050 37.29
226 Van der Sterren, Paul253949 42.12
227 Dao Thien Hai253951 19.97
228 Wang Zili253954 29.88
229 Tseshkovsky, Vitaly V253950 53.60
230 Barua, Dibyendu253752 31.51
231 Schandorff, Lars253750 33.03
232 Neverov, Valery253652 33.86
233 Agrest, Evgenij253650 31.71
234 Mikhalchishin, Adrian B253653 43.45
235 Miladinovic, Igor253551 24.26
236 Zagrebelny, Sergey253551
237 Kasimdzhanov, Rustam253452 18.40
238 Zaichik, Gennady L253462 41.22
239 Hebden, Mark253450 40.21
240 Kotronias, Vasilios253450 33.68
241 King, Daniel J253453 34.67
242 Moroz, Alexander253460 37.28
243 Browne, Walter S253459 49.30
244 Brodsky, Michail253350 29.09
245 Arkhipov, Sergey253359 43.85
246 Polovodin, Igor A253368 43.10
247 Greenfeld, Alon253350 34.04
248 Aseev, Konstantin N253350 37.53
249 Poluljahov, Aleksandr253350 32.90
250 Orlov, Georgi253270
251 Alburt, Lev O253269 52.69
252 Avrukh, Boris253252 20.31
253 Dizdarevic, Emir253250 40.08
254 Ubilava, Elizbar E253254 47.68
255 Rytshagov, Mikhail253149 30.47
256 Mikhalevski, Victor253150 25.80
257 Ivanov, Alexander V2253167 41.99
258 Nielsen, Peter Heine253149 24.93
259 Ivanov, Alexander V253156 41.99
260 Sherbakov, Vitaly S253075 42.86
261 Hort, Vlastimil252953 54.30
262 Nikolenko, Oleg252957 38.86
263 Shabanov, Yury F252967 60.47
264 Luther, Thomas252948 28.49
265 van der Wiel, John T H252949 38.72
266 Feygin, Michail252861 23.25
267 Kiselev, Sergey252851 36.63
268 Horvath, Jozsef252848 33.71
269 Chuchelov, Vladimir252651 28.59
270 Marin, Mihail252650 33.03
271 Shchekachev, Andrei252651 25.51
272 Bönsch, Uwe252652 39.54
273 Davies, Nigel R252652 37.75
274 Kishnev, Sergey252658 41.50
275 Rashkovsky, Nukhim N252551 52.03
276 Magem Badals, Jordi252549 30.68
277 Lugovoi, Aleksei252550 23.15
278 Stangl, Markus252551 29.00
279 Smyslov, Vassily V252551 77.10
280 Bezgodov, Alexei252453 28.83
281 Mueller, Karsten252452 27.44
282 Apicella, Manuel252452 28.03
283 Hector, Jonny252348 34.21
284 Loginov, Valery A252349 42.38
285 Watson, William N252358 36.03
286 Sermek, Drazen252348 29.25
287 Horváth, Csaba252348 29.90
288 Arnason, Jon L252364 37.46
289 Antonio, Rogelio Jr252356 36.20
290 Fishbein, Alexander252367 29.97
291 Comas Fabrego, Luis252354 26.86
292 Podzielny, Karl Heinz252359 43.64
293 Galliamova, Alisa252250 26.28
294 Efimov, Igor252249 37.62
295 Krivonosov, Oleg252261 36.96
296 Lanka, Zigurds252250 37.94
297 Gorelov, Sergey G252266 40.70
298 Kumaran, Dharshan252255 22.90
299 Kupreichik, Viktor D252149 48.82
300 Gausel, Einar252149 34.42
301 Degraeve, Jean Marc252149 27.26
302 Vakhidov, Tahir252157
303 Vera, Reynaldo252150 37.31
304 Zakharevich, Igor252052 34.79
305 Cámpora, Daniel H252051 40.83
306 Irzhanov, Ruslan252054 21.43
307 Bochkarev, Alexander252073 22.99
308 Ye Rongguang252055 34.57
309 Bacrot, Etienne251950 15.27
310 Zelcic, Robert251948 32.61
311 Chekhov, Valery A251956 42.43
312 Kolev, Atanas251856 30.79
313 Jakubiec, Artur251859 24.41
314 Spangenberg, Hugo251849 22.44
315 Zhang Zhong251752 19.65
316 Saltaev, Mihail251753 35.45
317 Adorján, András251755 48.08
318 Danielian, Oganes251758
319 Sagalchik, Gennadij251760 29.02
320 Sosonko, Gennadi251653 54.94
321 Kuporosov, Viktor251655 36.59
322 Kalinitschew, Sergey251653 42.24
323 Tischbierek, Raj251651 35.60
324 Nogueiras, Jesus251651 38.79
325 Kveinys, Aloyzas251550 35.81
326 Kiriakov, Petr251552 23.30
327 Strikovic, Aleksa251551 36.96
328 Istratescu, Andrei251449 22.41
329 Gyimesi, Zoltan251449 21.08
330 Zezulkin, Jurij251454 26.71
331 Darga, Klaus V251365 64.18
332 Finkel, Alexander251352 23.33
333 Chernyshov, Konstantin251357 30.89
334 Krogius, Nikolay V251362 67.77
335 Rodriguez, Amador251350 41.64
336 Cebalo, Mišo251349 53.23
337 Ruzele, Darius251352 30.01
338 Gofshtein, Leonid D251250 45.03
339 Notkin, Maksim251253 34.39
340 Smejkal, Jan251252 52.11
341 Liss, Eran251254 22.83
342 Reinderman, Dimitri251253 25.72
343 Kaminski, Marcin251250 21.14
344 Temirbaev, Serik251154
345 Hall, Jesper251154 26.79
346 Zontakh, Andrey251153 27.49
347 Tsesarsky, Ilya251155 38.56
348 Schlosser, Philipp251049 29.70
349 Vaulin, Alexander250948 41.12
350 Egin, Vladimir250957
351 Malisauskas, Vidmantas250853 34.74
352 Leitao, Rafael250853 18.34
353 Wang Pin250760 23.39
354 Zifroni, Dov250753 22.20
355 Suba, Mihai250754 50.91
356 Blatny, Pavel250748 29.86
357 Nijboer, Friso250748 32.92
358 Vorotnikov, Vladislav V250656 50.70
359 Kobalija, Mihail250651 19.98
360 Xie Jun250649 27.50
361 Solomon, Stephen J250662 34.77
362 Enders, Peter250651 35.24
363 Yandemirov, Valeri250650 35.22
364 Drasko, Milan250651 35.40
365 Zakharstov, Viacheslav V250562 30.08
366 Didishko, Vereslav250552 49.05
367 Arencibia, Walter250550 30.78
368 Ionescu, Constantin250451 39.63
369 Zarnicki, Pablo250449 25.47
370 Ivanovic, Božidar250454 51.68
371 Miralles, Gilles250458 32.23
372 Hulak, Krunoslav250453 46.92
373 Kosic, Dragan250454 28.21
374 Totsky, Leonid250452 30.72
375 Cramling, Pia250448 35.02
376 Ricardi, Pablo250350 36.18
377 Lesiege, Alexandre250355 22.70
378 Norwood, David250361 29.57
379 Nadyrhanov, Sergey250355 34.59
380 Olafsson, Helgi250252 41.71
381 Kantsler, Boris250254 36.04
382 Chandler, Murray G250256 38.07
383 Velimirovic, Dragoljub250251 55.96
384 Palatnik, Semen A250265 48.09
385 Bagaturov, Giorgi250255 33.42
386 Faragó, Iván250148 52.08
387 Liang Jinrong250054 37.94
388 Najer, Evgeniy250054 20.86
389 Timoshchenko, Gennady250050 49.01
390 Thorsteins, Karl250073 33.55
391 Kovacevic, Vladimir249953 56.09
392 Kempinski, Robert249949 20.80
393 Rabiega, Robert249951 27.25
394 Dragomarezkij, Evgeni249956 45.28
395 Cifuentes Parada, Roberto249849 40.36
396 Koniushkov, Igor249857 35.42
397 Sokolin, Leonid M249867
398 Maksimenko, Andrei249853 28.40
399 Gallagher, Joseph G249848 33.98
400 Agamaliev, Djamil249769 23.66
401 Frias, Victor J249770 42.22
402 Polak, Tomas249750 24.02
403 Maiorov, Oleg249752 26.78
404 Johansen, Darryl K249657 39.24
405 Shmuter, Leonid249662 28.98
406 Sunye Neto, Jaime249656 40.99
407 Heinemann, Thies249654 27.15
408 Kudrin, Sergey249656 38.65
409 Milov, Leonid249558 32.23
410 Ponomariov, Ruslan249556 14.55
411 Polgar, Sofia249551 23.49
412 Hansen, Sune Berg249451 27.03
413 Krakops, Maris249454 20.07
414 Votava, Jan249449 23.42
415 Sokolovs, Andrei249460 26.19
416 Khasin, Alexander249458 47.00
417 Belikov, Vladimir249354 26.74
418 Gil Capape, Javier249362 30.97
419 Maljutin, Evgeni249370 26.50
420 Fridman, Daniel249352 22.21
421 Djuric, Stefan249351 42.76
422 Lau, Ralf249251 38.53
423 Vogt, Lothar H249252 46.29
424 Tseitlin, Mark D249250 54.60
425 Danielsen, Henrik249252 32.28
426 Dyachkov, Sergej249260 21.48
427 Rausis, Igors249248 37.06
428 Liang Chong249267
429 Teske, Henrik249248 30.17
430 Nevednichy, Vladislav249250 28.66
431 Mukhametov, Eldar249257 28.94
432 Popov, Valerij249153 23.64
433 Grivas, Efstratios249151 32.08
434 Gavrilakis, Nikolaos249165 43.10
435 Popovic, Petar249150 39.21
436 Kovalev, Andrei249155 36.48
437 Sulskis, Sarunas249151 25.43
438 Kosten, Anthony C249150 39.77
439 Vukic, Milan249156 54.70
440 Volzhin, Alexander249151 27.24
441 Donchev, Dimitar I249072 39.78
442 Badea, Bela249050 29.19
443 Supatashvili, Khvicha249061 29.08
444 Guliev, Sarhan249052 30.08
445 Liiva, Riho249058 22.82
446 Geller, Efim P248971 73.16
447 Moskalenko, Viktor248956 37.40
448 Conquest, Stuart248949 31.16
449 Keitlinghaus, Ludger248849 32.77
450 Mitenkov, Alexey248859 37.14
451 Akhmadeev, Vadim248859 41.80
452 Lazarev, Vladimir248850 33.90
453 Kholmov, Ratmir D248852 72.96
454 Seeman, Tarvo248854 28.62
455 Mirumian, Vigen248852 20.59
456 Pavlovic, Milos248753 34.32
457 Quinteros, Miguel A248761 50.34
458 Campos Moreno, Javier B248755 39.15
459 Godena, Michele248648 30.83
460 Antunes, Antonio248653 36.23
461 Safin, Shukhrat248658 28.07
462 Veingold, Aleksander248549 44.55
463 Kazhgaleyev, Murtas248558
464 Ovetchkin, Roman248556 25.29
465 Bangiev, Alexander248571 51.46
466 Pfleger, Helmut248571 54.73
467 Gdanski, Jacek248550 27.42
468 Meister, Yakov248573 42.64
469 Kushch, Nikolai248471 36.08
470 Stanec, Nikolaus248448 30.00
471 Uhlmann, Wolfgang248451 63.09
472 Akesson, Ralf248448 37.23
473 Berelovich, Aleksandar248454 30.83
474 Ward, Christopher248449 30.09
475 Piskov, Yury248458 36.55
476 Marciano, David248450 28.82
477 McDonald, Neil R248451 31.28
478 Har Zvi, Ronen248356 21.55
479 Vescovi, Giovanni P248351 19.88
480 Grabarczyk, Miroslaw248351 27.32
481 Groszpeter, Attila248351 37.89
482 Movsziszian, Karen248251 35.32
483 Rodriguez, Andres248251 24.36
484 Manor, Ilan248257 28.51
485 Annageldyev, Orazly248268 38.11
486 Khachian, Melikset248257 27.82
487 Abramovic, Boško248255 47.21
488 Kochiev, Alexander248253 42.10
489 Rahman, Ziaur248257
490 Markowski, Tomasz248149 22.75
491 Janjgava, Lasha248169 27.98
492 Arbakov, Valentin248153 46.26
493 Iljushin, Alexei248161 17.75
494 Kallai, Gabor248152 39.19
495 Chabanon, Jean Luc248053 26.71
496 Nikolaidis, Ioannis248052 27.32
497 Levin, Felix248052 39.48
498 Bagirov, Vladimir K248051 61.71
499 Georgiev, Vladimir248053 22.68
500 Kirov Ivanov, Nino248061 52.64

These ratings, calculated as of April 30, 1998, incorporate all games (against rated opponents) played in the time between May 1, 1997 and April 30, 1998, along with the ratings that were already calculated as of April 30, 1997. 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 April 30, 1998. This represents the player's estimated strength on May 1, 1998.

+/- 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 May 1, 1998. The +/- value represents the standard deviation of that estimate; the player's true strength on May 1, 1998 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 May 1, 1998. 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 April 30, 1998. 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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