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Top 10 active players as of April 30, 1985


Top 500 active players as of April 30, 1985

  #  

Player Rating +/- Best? 75%? Age
1 Karpov, Anatoly E28084951.7% #233.93
2 Kasparov, Garry K27885031.1% #422.05
3 Beliavsky, Alexander G2729494.9% #1331.37
4 Timman, Jan H2703471.4% #2233.38
5 Vaganian, Rafael A2692501.2% #2833.54
6 Hübner, Robert2688490.8% #3036.48
7 Korchnoi, Viktor L2685490.6% #3154.10
8 Khalifman, Alexander2683622.0% #3819.28
9 Portisch, Lajos2678480.4% #3548.07
10 Ljubojevic, Ljubomir2675490.4% #3734.49
11 Agzamov, Georgy T2674500.5% #3830.65
12 Nunn, John D M2672490.4% #3930.01
13 Romanishin, Oleg M2670490.4% #4033.30
14 Polugaevsky, Lev A2669500.3% #4250.44
15 Dolmatov, Sergey V2668520.4% #4326.19
16 Ribli, Zoltán2667490.3% #4233.65
17 Tukmakov, Vladimir B2663500.2% #4539.12
18 Eingorn, Viacheslav S2662520.3% #4828.43
19 Gulko, Boris F2660520.3% #4838.22
20 Andersson, Ulf2651480.1% #5333.84
21 Dorfman, Iosif D2649520.2% #5832.99
22 Tal, Mikhail2648490.1% #5748.47
23 Psakhis, Lev B2647490.1% #5826.42
24 Spassky, Boris V2646490.1% #5848.25
25 Jussupow, Artur M2646500.1% #5925.21
26 Balashov, Yury S2645510.1% #6036.13
27 Chernin, Alexander M2645510.1% #6025.15
28 Smyslov, Vassily V2643510.1% #6264.10
29 Lputian, Smbat G2640500.1% #6527.21
30 Miles, Anthony J262947 #7330.02
31 Sveshnikov, Evgeny E262649 #7735.22
32 Zaichik, Gennady L2626540.1% #8028.22
33 Sokolov, Andrey Y262151 #8322.11
34 Bronstein, David I2620640.2% #9361.20
35 Gavrikov, Victor N261850 #8527.75
36 Seirawan, Yasser261750 #8625.10
37 Malaniuk, Vladimir P261753 #8927.78
38 Vasiukov, Evgeny A2617600.1% #9352.15
39 Lerner, Konstantin Z261652 #8935.17
40 Dvoiris, Semen I2615590.1% #9426.49
41 Rozentalis, Eduardas261555 #9321.92
42 Razuvaev, Yury S261250 #9239.55
43 Nikolic, Predrag261150 #9324.64
44 Vyzmanavin, Alexey260853 #9825.33
45 Geller, Efim P260851 #9660.16
46 Larsen, Bent260750 #9750.15
47 Smagin, Sergey260653 #10026.64
48 Tseshkovsky, Vitaly V260451 #9940.60
49 Kuzmin, Gennady P260452 #10139.28
50 Kavalek, Lubomir260453 #10241.72
51 Torre, Eugenio260250 #10133.49
52 Petrosian, Arshak B259851 #10831.37
53 Chekhov, Valery A259851 #10729.43
54 Dzindzichashvili, Roman Y259853 #10940.98
55 Gipslis, Aivars2598650.1% #11648.23
56 Pintér, József259852 #10731.47
57 Salov, Valery B259559 #11620.92
58 Gurevich, Mikhail N259553 #11226.19
59 Christiansen, Larry M259451 #11128.84
60 Dvoretsky, Mark I2594730.1% #12737.39
61 Makarichev, Sergey Y259356 #11631.45
62 Panno, Oscar R259362 #12050.12
63 Short, Nigel D259248 #11119.91
64 Kochiev, Alexander259254 #11529.10
65 Yurtaev, Leonid259161 #12125.99
66 Ehlvest, Jaan259153 #11622.54
67 Naumkin, Igor2590730.1% #13119.72
68 Vaisser, Anatoli258851 #11836.15
69 Sosonko, Gennadi258850 #11741.94
70 Novikov, Igor A258752 #11922.93
71 Ubilava, Elizbar E258752 #11934.68
72 Hort, Vlastimil258648 #11841.30
73 Timoshchenko, Gennady2586660.1% #13036.01
74 Mikhalchishin, Adrian B258451 #12130.45
75 Kupreichik, Viktor D258350 #12135.82
76 Kharitonov, Andrey Y258253 #12526.07
77 Chandler, Murray G258149 #12325.07
78 Pigusov, Evgeny258159 #13124.08
79 Kremenetsky, Anatoly M2579700.1% #13946.29
80 Speelman, Jonathan S257849 #12728.58
81 Smejkal, Jan257850 #12639.11
82 Sax, Gyula257849 #12733.87
83 Podgaets, Mikhail Y257660 #13537.77
84 Adorján, András257348 #13135.08
85 Azmaiparashvili, Zurab A257356 #13625.12
86 Browne, Walter S257252 #13436.30
87 Chiburdanidze, Maia G257152 #13624.29
88 Agdestein, Simen257155 #13717.95
89 Tarjan, James E257054 #13733.19
90 Eolian, Levon S257061 #14225.62
91 Cebalo, Mišo256850 #13640.23
92 Ftácnik, Lubomír256748 #13727.50
93 Byrne, Robert E256656 #14357.03
94 Vorotnikov, Vladislav V256659 #14637.70
95 Velimirovic, Dragoljub256650 #14042.96
96 Glek, Igor V256456 #14523.48
97 Knaak, Rainer F256450 #14132.12
98 Georgadze, Tamaz V256354 #14537.47
99 Savon, Vladimir A256268 #15344.59
100 Popovic, Petar256150 #14426.21
101 Bagirov, Vladimir K256154 48.71
102 Gheorghiu, Florin256151 41.07
103 Shereshevsky, Mikhail I255971 35.03
104 deFirmian, Nicholas E255949 27.76
105 Anikaev, Yury255861 36.84
106 Zilberman, Nathan R255871 44.98
107 Mestel, A Jonathan255851 28.13
108 Gligoric, Svetozar255752 62.24
109 Yudasin, Leonid G255653 25.73
110 Reshevsky, Samuel H255664 73.43
111 Panchenko, Alexander N255656 31.57
112 Yermolinsky, Alex V255558 27.05
113 Marjanovic, Slavoljub255449 30.32
114 Didishko, Vereslav255362 36.05
115 Gorelov, Sergey G255356 27.70
116 Suba, Mihai255149 37.91
117 Sturua, Zurab255161 25.89
118 Rashkovsky, Nukhim N255052 39.03
119 Hulak, Krunoslav255051 33.92
120 Uhlmann, Wolfgang255051 50.09
121 Karlsson, Lars255051 29.80
122 Polovodin, Igor A254963 30.10
123 Quinteros, Miguel A254854 37.34
124 Gufeld, Eduard E254858 49.11
125 Korzubov, Peter254855 23.33
126 Ivanov, Igor V254755 38.31
127 Kovacevic, Vladimir254550 43.09
128 van der Wiel, John T H254549 25.72
129 Wedberg, Tom254553 31.43
130 Taimanov, Mark E254253 59.23
131 Stean, Michael F254265 31.65
132 Guseinov, Aidyn254160 33.33
133 Vitolinš, Alvis254063 38.87
134 Kholmov, Ratmir D253953 59.96
135 Ostermeyer, Peter253854 41.55
136 Henley, Ron W253752 28.40
137 Kurajica, Bojan253749 37.46
138 Hazai, Laszlo253752 31.88
139 Oll, Lembit253657 19.02
140 Ivkov, Borislav253652 51.47
141 Gurgenidze, Bukhuti I253654 51.46
142 Cámpora, Daniel H253354 27.83
143 Nemet, Ivan253370 42.04
144 Ekstroem, Roland253264 28.93
145 Smirin, Ilia253175 17.28
146 Arkhipov, Sergey253064 30.85
147 Klovans, Janis253061 50.06
148 Abramovic, Boško253050 34.21
149 Mnatsakanian, Eduard A252959 46.40
150 Najdorf, Miguel252968 75.04
151 Zapata, Alonso252850 26.69
152 Shneider, Aleksandr252860 22.93
153 Mochalov, Evgeny V252868 33.50
154 Hansen, Curt252750 20.62
155 Drasko, Milan252753 22.40
156 Graf, Alexander252664 22.68
157 Andrianov, Nikolai252668 23.36
158 Lukacs, Peter252651 34.81
159 Cherepkov, Alexander V252661 64.50
160 Liberzon, Vladimir M252566 48.10
161 Alburt, Lev O252551 39.69
162 Neverov, Valery252461 20.86
163 Barua, Dibyendu252466 18.51
164 Kruppa, Yuri252465 20.86
165 Matanovic, Aleksandar252463 54.93
166 Osnos, Viacheslav V252370 49.77
167 Lobron, Eric252248 24.97
168 Georgiev, Kiril252250 19.42
169 Kengis, Edvins252159 26.05
170 Inkiov, Ventzislav252149 28.94
171 Barbero, Gerardo F252159 23.69
172 Spraggett, Kevin B252055 30.47
173 Lombardy, William J251957 47.40
174 Ivanovic, Božidar251949 38.68
175 Yuferov, Sergey N251962 39.41
176 Olafsson, Helgi251850 28.71
177 Unzicker, Wolfgang251755 59.84
178 Djuric, Stefan251651 29.76
179 Kogan, Boris251657
180 Fedorowicz, John P251653 26.59
181 Vladimirov, Evgeny Y251567 28.28
182 Simic, Radoslav251554 36.89
183 Nogueiras, Jesus251352 25.79
184 Lein, Anatoly251353 54.09
185 Tseitlin, Mikhail S251257 37.87
186 Mokrý, Karel251249 26.23
187 Shamkovich, Leonid A251255 61.91
188 Pétursson, Margeir251251 25.21
189 London, Dimitri251270 22.44
190 Palatnik, Semen A251060 35.09
191 Bukic, Enver251072 47.41
192 Veingold, Aleksander250959 31.55
193 Malich, Burkhard G250971 48.42
194 Keene, Raymond250960
195 Kindermann, Stefan250850 25.34
196 Gomez Baillo, Jorge H250859 26.03
197 Dlugy, Maxim250853 19.25
198 Stohl, Igor250752 20.59
199 Arnason, Jon L250650 24.46
200 Greenfeld, Alon250658 21.04
201 Grigorian, Karen A250666 37.65
202 Vogt, Lothar H250551 33.29
203 Faragó, Iván250549 39.08
204 García Gonzáles, Guillermo250549 31.39
205 Hasanov, Marat250476 28.67
206 Nikolic, Zivoslav250453 31.38
207 Morovic Fernández, Iván E250454 22.10
208 Rodriguez, Amador250350 28.64
209 Gurevich, Dmitry250252 28.64
210 Benjamin, Joel L250253 21.14
211 Vukic, Milan250257 41.70
212 Pfleger, Helmut250255 41.73
213 Groszpeter, Attila250153 24.89
214 Pekarek, Ales250161 23.37
215 Matulovic, Milan250056 49.89
216 Csom, István250050 44.91
217 Franco Ocampos, Zenon250063 28.96
218 Velikov, Petar249950 34.08
219 Gruenfeld, Yehuda249856 29.17
220 Thipsay, Praveen Mahadeo249855 25.72
221 Raicevic, Momcilo249766
222 Lukin, Andrei M249655 36.67
223 Suetin, Alexey S249562 58.46
224 Rukavina, Josip249454 42.42
225 Fernandez Garcia, Jose Luis249461 30.98
226 Wolf, Volker249364 27.65
227 Meduna, Eduard249351 34.64
228 Jansa, Vlastimil249349 42.43
229 Yrjola, Jouni249352 25.52
230 Olafsson, Fridrik249268 50.26
231 Schussler, Harry249151 27.85
232 Sigurjónsson, Gudmundur249153 37.60
233 Schmidt, Wlodzimierz249149 42.05
234 Szekely, Peter249152 30.23
235 Ree, Hans249151 40.62
236 Donchev, Dimitar I249150 26.78
237 Portisch, Ferenc249055 46.06
238 Cvitan, Ognjen249052 23.55
239 Nikolac, Juraj249064 53.02
240 Soppe, Guillermo249067 24.62
241 Bikhovsky, Avigdor I248970 30.15
242 Pytel, Krzysztof248952 39.95
243 Antoshin, Vladimir S248869 55.95
244 Sunye Neto, Jaime248853 27.99
245 Kirov Ivanov, Nino248751 39.64
246 Rogers, Ian248750 24.85
247 Podzielny, Karl Heinz248760 30.64
248 Hjartarson, Jóhann248650 22.23
249 Mednis, Edmar J248663 48.11
250 Kaidanov, Gregory S248658 25.55
251 Petrushin, Alexander I248560 38.14
252 Murey, Yakov248453 43.74
253 Minic, Dragoljub248463 48.15
254 Benko, Pal C248464 56.79
255 Prandstetter, Eduard248451 36.37
256 Rivas Pastor, Manuel248351 24.80
257 Plaskett, Jim248249 25.12
258 Zaitsev, Igor A248262 46.92
259 Kudrin, Sergey248249 25.65
260 Tringov, Georgy P248253 48.15
261 Radulov, Ivan248151 46.31
262 Plachetka, Jan248149 40.20
263 Rajkovic, Dusan248057 42.87
264 Hebden, Mark248054 27.21
265 Schneider, Lars Ake247957
266 Govedarica, Radovan247964 37.21
267 Tatai, Stefano247852 47.10
268 Bany, Jerzy247757 24.15
269 Řgaard, Leif247759 33.32
270 Georgiev, Krum247650 26.93
271 Toth, Bela247653 42.03
272 Popov, Luben247557 49.26
273 Filipovic, Branko247557 27.57
274 Lechtynsky, Jiri247549 37.43
275 Espig, Lutz247454 36.32
276 Antunes, Antonio247469 23.23
277 Kraidman, Yair247373 52.50
278 Klaric, Zlatko247259 28.52
279 Padevsky, Nikola B247270 51.91
280 Bilek, István247267 52.72
281 Mariotti, Sergio247271 38.72
282 Spassov, Liuben247250 42.11
283 Mirkovic, Slobodan247261 26.76
284 Gutman, Lev247152 39.59
285 Efimov, Igor247162 24.62
286 Bönsch, Uwe247050 26.54
287 Ghinda, Mihail Viorel247052 35.76
288 Tischbierek, Raj247052 22.60
289 Hermann, Manfred246963 42.66
290 Bisguier, Arthur B246968 55.56
291 Ermenkov, Evgenij246950 35.59
292 Moskalenko, Viktor246865 24.40
293 Tavadian, Ragik246870
294 Shvidler, Eliahu246862 25.36
295 Aseev, Konstantin N246754 24.53
296 Seret, Jean Luc246765
297 Rogulj, Branko246776 33.75
298 Gruenberg, Hans Ulrich246753 29.31
299 Rubinetti, Jorge A246564 40.08
300 Taulbut, Shaun M246574 27.30
301 Van Wijgerden, Cornelis246561 34.93
302 Renman, Nils Gustaf246463
303 Arbakov, Valentin246370 33.26
304 Vilela, Jose Luis246352 32.11
305 Haik, Aldo246355 32.53
306 Zaltsman, Vitaly F246263 43.51
307 Soltis, Andrew E246063 37.92
308 Ligterink, Gert246053 35.45
309 Feustel, Bernd246070 30.61
310 Nun, Jiri245968 27.76
311 Andres Mendez, Miguel245962
312 Hartston, William R245964 37.72
313 Hawelko, Marek245964 25.72
314 Leow Leslie M245971
315 Strauss, David J245965 38.73
316 Womacka, Mathias245859 18.84
317 Hamann, Svend245873 44.56
318 Hug, Werner245762 32.64
319 Dizdar, Goran245759 26.40
320 Birnboim, Nathan245764 34.43
321 Rodriguez, Ruben245772 38.40
322 Vera, Reynaldo245752 24.31
323 Sahovic, Dragutin245652 44.73
324 Vokác, Marek245660 26.40
325 Cifuentes Parada, Roberto245661 27.36
326 Li Zunian245663 27.31
327 Ardiansyah, Haji245656 33.40
328 Flear, Glenn C245455 26.22
329 Gruen, Peter245458 28.29
330 Botterill, George Steven245363
331 Pelts, Roman245370 48.14
332 Ost Hansen, Jacob245361
333 Peters, John A245259 34.22
334 Mortensen, Erling245252 30.07
335 Forintos, Gyözö V245262 49.75
336 Bjelajac, Milan245263 37.13
337 Barczay, Laszlo245262 49.19
338 Van der Sterren, Paul245252 29.12
339 Heinbuch, Detlef245159 24.31
340 Stoica, Valentin245162 35.21
341 Legky, Nikolay A245176 30.05
342 Klinger, Josef245055 17.90
343 Sznapik, Aleksander245049 34.22
344 Velickovic, Sasa244960 34.08
345 Hjorth, Greg244959 21.79
346 Lau, Ralf244860 25.53
347 Knezevic, Milorad244850 48.50
348 Bass, Leonid244865 27.91
349 Kuzmin, Alexey244773 22.14
350 Barlov, Dragan244750 28.25
351 Ernst, Thomas244757 24.70
352 Duer, Arne244772 25.80
353 Karner, Hillar244659 49.76
354 Eslon, Jaan244662 33.15
355 Barbulescu, Dan244662 20.85
356 Litvinov, Vladimir244673 43.79
357 Nun, Josef244659 51.77
358 Helmers, Knut J244656 28.23
359 Dzuban, Oleg I244567
360 Garcia Palermo, Carlos244557 31.41
361 Adamski, Jan244550 41.47
362 Ionov, Sergey244576 23.31
363 Hernandez, Roman244453 35.44
364 Pecorelli Garcia, Humberto244458 21.38
365 Neckar, Lubomir244474 34.74
366 Ornstein, Axel244355 33.02
367 Handoko, Edhi244355 24.67
368 Derikum, Axel244364 30.96
369 Zilberstein, Valery I244374 42.05
370 Bellin, Robert244366 32.83
371 Mascarinas, Rico244264 32.16
372 Nei, Iivo244272 53.50
373 Wirthensohn, Heinz244256 33.98
374 Wiedenkeller, Michael244261 22.30
375 Doda, Zbigniew243964 54.19
376 Donner, Johannes H243973 57.82
377 Staniszewski, Piotr243957 18.65
378 Qi Jingxuan243962 37.47
379 Bastian, Herbert243860 32.39
380 Ghitescu, Theodor243762 51.27
381 Raicevic, Vladimir243756 35.99
382 Nurkic, Sahbaz243773 29.13
383 Spiridonov, Nikola243651 47.17
384 McCambridge, Vincent243657 25.14
385 Ricardi, Pablo243559 23.18
386 Polgar, Zsuzsa243559 16.03
387 Lalev, Dimitar243561 25.29
388 Sygulski, Artur243552 24.77
389 Reyes, Juan243473 22.01
390 Shaboian, V.243468
391 Gross, Stefan243457 35.67
392 Reefschlaeger, Helmut243460 41.06
393 Tisdall, Jonathan D243457 26.68
394 Frias, Victor J243358 29.22
395 Wilder, Michael243372 22.62
396 Manouck, Thierry243363 27.96
397 Martinovic, Slobodan243351 39.76
398 Lanka, Zigurds243365 24.94
399 Giorgadze, Giorgi243273 20.55
400 Karolyi, Tibor Jr243255 23.46
401 Kishnev, Sergey243264 28.50
402 Ambroz, Jan243158 30.87
403 Scheeren, Peter243160 29.75
404 Foisor, Ovidiu243060 26.07
405 Harandi, Khosro243068 34.66
406 Bielczyk, Jacek243056 32.19
407 Banas, Jan242954 37.91
408 Arkell, Keith C242966 24.31
409 Bellon Lopez, Juan Manuel242752 34.97
410 Danailov, Silvio242753 24.03
411 Hecht, Hans-Joachim242761 46.25
412 Bergstrom, Christer242773 26.59
413 Kelecevic, Nedeljko242669 38.14
414 Garcia Martinez, Silvino242651 40.82
415 Van Riemsdijk, Herman C242661 36.68
416 Yap, Andronico242657
417 Seppeur, Reinhold242663 29.71
418 Westerinen, Heikki MJ242652 41.01
419 Tiller, Bjorn242663 26.29
420 Ilinsky, Vladimir242668
421 Kristiansen, Jens242550 32.92
422 Schneider, Attila242559 30.04
423 Szmetan, Jorge242561 34.92
424 Dobrovolsky, Ladislav242560 34.35
425 Wittmann, Walter242556 37.13
426 Cabrilo, Goran242455 26.83
427 Martin, Andrew D242355 27.94
428 Tomaszewski, Roman242360 24.95
429 Wockenfuss, Klaus242358 33.67
430 Bischoff, Klaus242358 23.89
431 Thorsteins, Karl242355 20.55
432 Jakobsen, Ole242253 42.53
433 Doncevic, Dario242265 27.30
434 Ochoa de Echaguen, F Javier242262 30.65
435 Goehring, Karl Heinz242264
436 Klundt, Klaus242269 43.35
437 Sanna, Gianlazzaro242161 25.05
438 Littlewood, Paul E242166 29.28
439 Piesina, Gintautas242168 33.06
440 Bukal, Vladimir Sr242062 45.50
441 Debarnot, Roberto242070 37.73
442 Borm, Franciscus WM242063
443 Popchev, Milko242062 20.47
444 Bohm, Hans241955 35.29
445 Pribyl, Josef241951 37.55
446 Langeweg, Kick241856 48.15
447 Levitina, Irina S241857 30.89
448 Damljanovic, Branko241856 23.87
449 Zueger, Beat241857 23.91
450 Schweber, Samuel241764 48.79
451 Bronstein, Luis241761 38.91
452 Paehtz, Thomas Sr241750 28.65
453 Eng, Holger241759 24.18
454 Krnic, Zdenko241765 37.58
455 Sideif Sade, Fikret I241772 33.33
456 Pedersen, Erik241656 26.64
457 Kaiszauri, Konstanty241674 32.51
458 Hartoch, Robert G241663
459 Loginov, Valery A241673 29.38
460 Cramling, Dan241662 26.23
461 Zichichi, Alvise241560 46.82
462 Kolev, Atanas241562 17.79
463 Grigorov, Jordan N241453 31.39
464 Casper, Thomas241457 26.12
465 Ilic, Zoran241359 21.74
466 Liang Jinrong241365 24.94
467 Bajovic, Milan241375
468 Hodgson, Julian M241358 21.76
469 Robatsch, Karl241359 56.54
470 Monier, Raul241370 24.97
471 Anand, Viswanathan241271 15.39
472 Brinck Claussen, Bjorn241256
473 McNab, Colin Anderson241156 24.24
474 Lengyel, Levente241064 51.88
475 Pritchett, Craig William241067
476 Zahariev, Zahari240960 23.64
477 Kestler, Hans-Günter240867 45.38
478 Dreev, Alexey240762 16.28
479 Kouatly, Bachar240756 27.16
480 Cvetkovic, Srdjan240659 39.17
481 Djukic, Zeljko240662 25.88
482 Sibarevic, Milenko240663 40.13
483 Moehring, Guenther240667 48.43
484 Karpeshov, Oleg240676 31.23
485 Sher, Miron N240676 32.84
486 Eising, Johannes240571 49.91
487 Maki, Veijo240561 26.40
488 Paulsen, Dirk240560 26.26
489 Lalic, Bogdan240463 21.14
490 Pliester, Leon240470 30.69
491 Garcia, Gildardo240359 31.14
492 De Wit, Johannes S240360 20.59
493 Damjanovic, Mato240273 58.10
494 Hawksworth, John C240264 21.40
495 Stempin, Pawel240251 25.80
496 Williams, Arthur Howard240175
497 Orso, Miklos240171 28.89
498 Kagan, Shimon240065 43.07
499 Davies, Nigel R239964 24.75
500 Rigo, Janos239960 36.51

These ratings, calculated as of April 30, 1985, incorporate all games (against rated opponents) played in the time between May 1, 1984 and April 30, 1985, along with the ratings that were already calculated as of April 30, 1984. 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, 1985. This represents the player's estimated strength on May 1, 1985.

+/- 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, 1985. The +/- value represents the standard deviation of that estimate; the player's true strength on May 1, 1985 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, 1985. 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, 1985. 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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