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Top 10 active players as of June 30, 1985


Top 500 active players as of June 30, 1985

  #  

Player Rating +/- Best? 75%? Age
1 Karpov, Anatoly E28094950.4% #234.10
2 Kasparov, Garry K27924933.1% #322.21
3 Beliavsky, Alexander G2738506.3% #1131.54
4 Timman, Jan H2712472.0% #1733.54
5 Vaganian, Rafael A2698511.4% #2433.71
6 Hübner, Robert2687490.7% #2936.65
7 Korchnoi, Viktor L2684490.6% #3154.27
8 Ljubojevic, Ljubomir2682500.6% #3234.66
9 Portisch, Lajos2679480.4% #3348.24
10 Nunn, John D M2677490.5% #3530.18
11 Polugaevsky, Lev A2671510.4% #3950.61
12 Agzamov, Georgy T2671500.4% #3930.81
13 Ribli, Zoltán2664490.2% #4433.81
14 Eingorn, Viacheslav S2664520.3% #4428.60
15 Tukmakov, Vladimir B2663500.2% #4439.29
16 Dolmatov, Sergey V2657520.2% #5026.36
17 Andersson, Ulf2654490.1% #5034.01
18 Tal, Mikhail2653490.1% #5248.64
19 Spassky, Boris V2649490.1% #5548.42
20 Jussupow, Artur M2648510.1% #5625.38
21 Gulko, Boris F2647520.2% #5838.39
22 Psakhis, Lev B2644490.1% #5926.59
23 Dorfman, Iosif D2642530.1% #6333.16
24 Lputian, Smbat G2641500.1% #6327.38
25 Khalifman, Alexander2641620.3% #6919.45
26 Romanishin, Oleg M263849 #6433.47
27 Miles, Anthony J263647 #6430.19
28 Chernin, Alexander M263051 #7325.31
29 Smyslov, Vassily V2629510.1% #7364.27
30 Sveshnikov, Evgeny E262849 #7435.38
31 Seirawan, Yasser262350 #7925.27
32 Sokolov, Andrey Y262051 #8322.28
33 Lerner, Konstantin Z261953 #8435.34
34 Dzindzichashvili, Roman Y261754 #8841.15
35 Rozentalis, Eduardas261754 #8822.09
36 Dvoiris, Semen I2616590.1% #9126.66
37 Zaichik, Gennady L261654 #8828.38
38 Malaniuk, Vladimir P261553 #8927.94
39 Bronstein, David I2614650.1% #10061.36
40 Gavrikov, Victor N261349 #8927.91
41 Larsen, Bent261151 #9250.32
42 Vasiukov, Evgeny A2610610.1% #10052.32
43 Nikolic, Predrag260949 #9324.80
44 Razuvaev, Yury S260851 #9439.72
45 Geller, Efim P260651 #9760.33
46 Vyzmanavin, Alexey260553 #10125.49
47 Kavalek, Lubomir260353 #10241.89
48 Smagin, Sergey260053 #10526.81
49 Balashov, Yury S260050 #10436.30
50 Christiansen, Larry M260050 #10429.01
51 Kuzmin, Gennady P259952 #10639.45
52 Gipslis, Aivars2599700.1% #11848.39
53 Tseshkovsky, Vitaly V259751 #10740.76
54 Petrosian, Arshak B259751 #10731.54
55 Short, Nigel D259549 #10820.08
56 Vaisser, Anatoli259351 #11136.32
57 Kochiev, Alexander259355 #11529.26
58 Gurevich, Mikhail N259253 #11426.36
59 Panno, Oscar R259262 #12150.29
60 Naumkin, Igor2592720.1% #12819.89
61 Makarichev, Sergey Y259156 #11731.62
62 Torre, Eugenio259051 #11433.65
63 Yurtaev, Leonid259063 #12326.16
64 Ubilava, Elizbar E259052 #11434.84
65 Chekhov, Valery A258952 #11629.59
66 Ehlvest, Jaan258853 #11822.71
67 Hort, Vlastimil258848 #11441.47
68 Sosonko, Gennadi258850 #11742.12
69 Novikov, Igor A258852 #11723.10
70 Mikhalchishin, Adrian B258651 #11930.62
71 Salov, Valery B258659 #12421.09
72 Timoshchenko, Gennady258566 #13036.17
73 Chandler, Murray G258349 #12125.24
74 Kupreichik, Viktor D258150 #12335.98
75 Pintér, József258151 #12331.64
76 Pigusov, Evgeny258155 #12724.25
77 Smejkal, Jan258150 #12439.27
78 Parma, Bruno258064 #13443.50
79 Sax, Gyula258049 #12434.03
80 Kharitonov, Andrey Y257853 #12826.24
81 Savon, Vladimir A2575710.1% #14444.76
82 Speelman, Jonathan S257449 #13028.74
83 Agdestein, Simen257453 #13218.12
84 Adorján, András257348 #13035.25
85 Eolian, Levon S257261 #14125.79
86 Tarjan, James E257254 #13533.36
87 Azmaiparashvili, Zurab A256956 #13925.29
88 Podgaets, Mikhail Y256960 #14237.93
89 Byrne, Robert E256856 #14157.19
90 Popovic, Petar256749 #13726.38
91 Velimirovic, Dragoljub256750 #13843.13
92 Chiburdanidze, Maia G256652 #13924.45
93 Mochalov, Evgeny V256671 #15233.67
94 Ftácnik, Lubomír256548 #13927.67
95 Yudasin, Leonid G256455 #14425.89
96 Gheorghiu, Florin256251 #14241.23
97 Knaak, Rainer F256250 #14232.29
98 Cebalo, Mišo256149 #14340.40
99 deFirmian, Nicholas E256149 #14327.92
100 Browne, Walter S255951 #14636.47
101 Reshevsky, Samuel H255864 73.59
102 Bagirov, Vladimir K255854 48.87
103 Ivanov, Igor V255756 38.48
104 Georgadze, Tamaz V255754 37.64
105 Marjanovic, Slavoljub255649 30.48
106 Shereshevsky, Mikhail I255671 35.19
107 Anikaev, Yury255662 37.00
108 Panchenko, Alexander N255557 31.73
109 Hulak, Krunoslav255551 34.10
110 Kremenetsky, Anatoly M255472 46.46
111 Mestel, A Jonathan255151 28.30
112 Guseinov, Aidyn255160 33.49
113 Karlsson, Lars255150 29.96
114 Vitolinš, Alvis255067 39.04
115 Rashkovsky, Nukhim N255052 39.20
116 Nogueiras, Jesus254951 25.95
117 Stean, Michael F254867 31.82
118 Didishko, Vereslav254863 36.22
119 Korzubov, Peter254755 23.49
120 Vorotnikov, Vladislav V254765 37.87
121 Polovodin, Igor A254763 30.27
122 Gorelov, Sergey G254756 27.87
123 Kovacevic, Vladimir254651 43.26
124 Suba, Mihai254650 38.08
125 van der Wiel, John T H254649 25.89
126 Gligoric, Svetozar254653 62.41
127 Wedberg, Tom254553 31.59
128 Gufeld, Eduard E254557 49.28
129 Quinteros, Miguel A254454 37.51
130 Ivkov, Borislav254352 51.63
131 Taimanov, Mark E254355 59.40
132 Glek, Igor V254356 23.65
133 Andrianov, Nikolai254269 23.53
134 Kholmov, Ratmir D254153 60.13
135 Yermolinsky, Alex V254062 27.22
136 Henley, Ron W254053 28.57
137 Kurajica, Bojan254049 37.62
138 Hazai, Laszlo254053 32.04
139 Gurgenidze, Bukhuti I253954 51.63
140 Ostermeyer, Peter253854 41.72
141 Sturua, Zurab253860 26.06
142 Spraggett, Kevin B253653 30.64
143 Kengis, Edvins253661 26.22
144 Hansen, Curt253549 20.78
145 Nemet, Ivan253470 42.21
146 Cámpora, Daniel H253454 27.99
147 Georgiev, Kiril253451 19.59
148 Kruppa, Yuri253364 21.02
149 Uhlmann, Wolfgang253351 50.25
150 Ekstroem, Roland253364 29.11
151 Smirin, Ilia253175 17.44
152 Zapata, Alonso252951 26.86
153 Barua, Dibyendu252869 18.67
154 Lobron, Eric252848 25.15
155 Klovans, Janis252864 50.22
156 Osnos, Viacheslav V252769 49.93
157 Liberzon, Vladimir M252766 48.27
158 Najdorf, Miguel252670 75.21
159 Mokrý, Karel252649 26.40
160 Mnatsakanian, Eduard A252559 46.56
161 Yuferov, Sergey N252562 39.57
162 Graf, Alexander252563 22.85
163 Oll, Lembit252357 19.19
164 Alburt, Lev O252350 39.86
165 Lukacs, Peter252351 34.97
166 Matanovic, Aleksandar252363 55.10
167 Barbero, Gerardo F252159 23.86
168 Vladimirov, Evgeny Y252167 28.44
169 Olafsson, Helgi252150 28.87
170 Drasko, Milan252053 22.56
171 Zakharov, Alexander V252075 41.73
172 Inkiov, Ventzislav252049 29.11
173 Ivanovic, Božidar251949 38.85
174 Unzicker, Wolfgang251955 60.01
175 Kogan, Boris251957
176 Neverov, Valery251960 21.02
177 Fedorowicz, John P251753 26.76
178 Djuric, Stefan251651 29.92
179 Abramovic, Boško251651 34.38
180 Cherepkov, Alexander V251666 64.67
181 Faragó, Iván251650 39.24
182 London, Dimitri251570 22.61
183 Palatnik, Semen A251560 35.26
184 Simic, Radoslav251555 37.06
185 Arkhipov, Sergey251463 31.02
186 Keene, Raymond251363
187 Jansa, Vlastimil251349 42.59
188 Grigorian, Karen A251366 37.81
189 García Gonzáles, Guillermo251250 31.56
190 Kindermann, Stefan251150 25.51
191 Arnason, Jon L251150 24.63
192 Vogt, Lothar H251051 33.45
193 Hasanov, Marat251076 28.84
194 Bukic, Enver251072 47.58
195 Greenfeld, Alon250958 21.20
196 Gomez Baillo, Jorge H250959 26.20
197 Vukic, Milan250857 41.86
198 Shneider, Aleksandr250859 23.11
199 Tseitlin, Mikhail S250858 38.04
200 Lombardy, William J250855 47.57
201 Lein, Anatoly250852 54.26
202 Veingold, Aleksander250859 31.72
203 Pétursson, Margeir250751 25.37
204 Shamkovich, Leonid A250655 62.08
205 Rodriguez, Amador250451 28.81
206 Benjamin, Joel L250453 21.30
207 Pfleger, Helmut250456 41.90
208 Groszpeter, Attila250453 25.06
209 Stohl, Igor250352 20.76
210 Rukavina, Josip250354 42.59
211 Suetin, Alexey S250362 58.62
212 Morovic Fernández, Iván E250254 22.27
213 Donchev, Dimitar I250150 26.94
214 Gruenfeld, Yehuda250156 29.34
215 Franco Ocampos, Zenon250063 29.13
216 Hjartarson, Jóhann250050 22.39
217 Thipsay, Praveen Mahadeo249955 25.88
218 Dlugy, Maxim249952 19.42
219 Wolf, Volker249864 27.81
220 Gurevich, Dmitry249752 28.80
221 Nikolic, Zivoslav249654 31.55
222 Murey, Yakov249654 43.91
223 Matulovic, Milan249556 50.05
224 Schmidt, Wlodzimierz249550 42.22
225 Csom, István249550 45.08
226 Malich, Burkhard G249572 48.59
227 Meduna, Eduard249451 34.80
228 Podzielny, Karl Heinz249460 30.80
229 Cvitan, Ognjen249353 23.72
230 Velikov, Petar249351 34.25
231 Portisch, Ferenc249355 46.22
232 Ree, Hans249251 40.79
233 Pytel, Krzysztof249253 40.12
234 Olafsson, Fridrik249168 50.43
235 Rivas Pastor, Manuel249153 24.96
236 Szekely, Peter249152 30.39
237 Sigurjónsson, Gudmundur249152 37.76
238 Rogers, Ian249150 25.02
239 Schussler, Harry249151 28.02
240 Kirov Ivanov, Nino249152 39.81
241 Soppe, Guillermo249067 24.79
242 Yrjola, Jouni248952 25.68
243 Bikhovsky, Avigdor I248970 30.32
244 Prandstetter, Eduard248951 36.54
245 Sunye Neto, Jaime248853 28.16
246 Plachetka, Jan248850 40.37
247 Nikolac, Juraj248865 53.19
248 Minic, Dragoljub248663 48.32
249 Bastian, Herbert248661 32.55
250 Ionov, Sergey248574 23.48
251 Garcia Palermo, Carlos248455 31.58
252 Radulov, Ivan248451 46.48
253 Mednis, Edmar J248463 48.27
254 Pekarek, Ales248460 23.54
255 Bany, Jerzy248356 24.32
256 Kudrin, Sergey248349 25.81
257 Tringov, Georgy P248154 48.31
258 Bisguier, Arthur B248174 55.73
259 Benko, Pal C248065 56.95
260 Govedarica, Radovan247970 37.38
261 Antoshin, Vladimir S247969 56.13
262 Lechtynsky, Jiri247950 37.60
263 Lukin, Andrei M247858 36.84
264 Georgiev, Krum247850 27.10
265 Plaskett, Jim247749 25.28
266 Tatai, Stefano247752 47.27
267 Toth, Bela247753 42.20
268 Popov, Luben247757 49.42
269 Bönsch, Uwe247751 26.71
270 Gruen, Peter247758 28.46
271 Hebden, Mark247754 27.37
272 Schneider, Lars Ake247657
273 Řgaard, Leif247659 33.48
274 Gutman, Lev247452 39.76
275 Ghinda, Mihail Viorel247452 35.92
276 Kraidman, Yair247373 52.66
277 Efimov, Igor247262 24.79
278 Mariotti, Sergio247271 38.89
279 Zaitsev, Igor A247264 47.09
280 Antunes, Antonio247269 23.40
281 Tischbierek, Raj247252 22.77
282 Petrushin, Alexander I247260 38.30
283 Padevsky, Nikola B247270 52.09
284 Feustel, Bernd247270 30.78
285 Dizdar, Goran247160 26.57
286 Shvidler, Eliahu247162 25.53
287 Rogulj, Branko247176 33.91
288 Klaric, Zlatko247159 28.68
289 Spassov, Liuben247050 42.27
290 Kaidanov, Gregory S247058 25.72
291 Gruenberg, Hans Ulrich247053 29.47
292 Espig, Lutz246954 36.48
293 Mortensen, Erling246852 30.23
294 Seret, Jean Luc246765
295 Soltis, Andrew E246763 38.09
296 Tavadian, Ragik246770
297 Rubinetti, Jorge A246764 40.25
298 Wiedenkeller, Michael246762 22.47
299 Ermenkov, Evgenij246651 35.75
300 Filipovic, Branko246657 27.73
301 Vilela, Jose Luis246551 32.28
302 Rajkovic, Dusan246458 43.04
303 Van Wijgerden, Cornelis246461 35.10
304 Taulbut, Shaun M246476 27.47
305 Haik, Aldo246456 32.70
306 Renman, Nils Gustaf246363
307 Knezevic, Milorad246350 48.66
308 Andres Mendez, Miguel246362
309 Arbakov, Valentin246371 33.42
310 Fernandez Garcia, Jose Luis246364 31.16
311 Hermann, Manfred246263 42.83
312 Kishnev, Sergey246263 28.66
313 Hartston, William R246264 37.88
314 Womacka, Mathias246259 19.01
315 Lau, Ralf246157 25.70
316 Hawelko, Marek246064 25.89
317 Sahovic, Dragutin246052 44.89
318 Mirkovic, Slobodan246065 26.92
319 Botterill, George Steven245963
320 Ost Hansen, Jacob245961
321 Strauss, David J245965 38.90
322 Ernst, Thomas245955 24.87
323 Hug, Werner245962 32.80
324 Birnboim, Nathan245964 34.59
325 Vokác, Marek245963 26.56
326 Moskalenko, Viktor245964 24.57
327 Ligterink, Gert245853 35.62
328 Leow Leslie M245871
329 Hamann, Svend245773 44.73
330 Li Zunian245763 27.48
331 Mascarinas, Rico245765 32.33
332 Hernandez, Roman245652 35.60
333 Rodriguez, Ruben245672 38.56
334 Cifuentes Parada, Roberto245661 27.52
335 Aseev, Konstantin N245655 24.69
336 Ardiansyah, Haji245656 33.57
337 Nun, Jiri245569 27.92
338 Peters, John A245559 34.39
339 Vera, Reynaldo245453 24.48
340 Bischoff, Klaus245456 24.06
341 Barczay, Laszlo245462 49.36
342 Bjelajac, Milan245363 37.29
343 Flear, Glenn C245255 26.38
344 Scheeren, Peter245261 29.91
345 Velickovic, Sasa245262 34.24
346 Giorgadze, Giorgi245272 20.72
347 Duer, Arne245173 25.96
348 Stoica, Valentin245162 35.37
349 Klinger, Josef245155 18.06
350 Bilek, István245161 52.88
351 Litvinov, Vladimir245173 43.95
352 Thorsteins, Karl245154 20.71
353 Pelts, Roman245070 48.30
354 Handoko, Edhi245055 24.84
355 Van der Sterren, Paul244952 29.29
356 Legky, Nikolay A244976 30.22
357 Bass, Leonid244865 28.08
358 Hjorth, Greg244859 21.95
359 Barbulescu, Dan244762 21.02
360 Nun, Josef244659 51.93
361 Neckar, Lubomir244674 34.91
362 Eslon, Jaan244562 33.32
363 Adamski, Jan244551 41.63
364 Karner, Hillar244459 49.92
365 Barlov, Dragan244450 28.42
366 Derikum, Axel244464 31.13
367 Qi Jingxuan244456 37.64
368 Helmers, Knut J244358 28.40
369 Wirthensohn, Heinz244356 34.15
370 Pecorelli Garcia, Humberto244358 21.54
371 Sznapik, Aleksander244250 34.39
372 Forintos, Gyözö V244262 49.91
373 Donner, Johannes H244275 57.98
374 Doda, Zbigniew244264 54.36
375 Nei, Iivo244272 53.66
376 Doncevic, Dario244259 27.47
377 Zilberstein, Valery I244274 42.21
378 Frias, Victor J244159 29.39
379 Staniszewski, Piotr244157 18.82
380 Dzuban, Oleg I244167
381 Reefschlaeger, Helmut244060 41.23
382 Lalev, Dimitar243966 25.45
383 Nurkic, Sahbaz243873 29.29
384 Kuzmin, Alexey243872 22.31
385 Ghitescu, Theodor243762 51.43
386 Raicevic, Vladimir243756 36.16
387 McCambridge, Vincent243657 25.31
388 Cabrilo, Goran243658 26.99
389 Anand, Viswanathan243669 15.55
390 Lanka, Zigurds243671 25.11
391 Ricardi, Pablo243659 23.35
392 Wilder, Michael243672 22.79
393 Bellin, Robert243667 32.99
394 Reyes, Juan243573 22.18
395 Manouck, Thierry243563 28.13
396 Spiridonov, Nikola243451 47.34
397 Polgar, Zsuzsa243459 16.20
398 Sygulski, Artur243452 24.93
399 Gross, Stefan243456 35.84
400 Ambroz, Jan243358 31.03
401 Piesina, Gintautas243368 33.23
402 Kelecevic, Nedeljko243370 38.30
403 Ochoa de Echaguen, F Javier243162 30.82
404 Tisdall, Jonathan D243157 26.84
405 Harandi, Khosro243168 34.83
406 Bielczyk, Jacek243057 32.35
407 Pribyl, Josef243052 37.72
408 Hecht, Hans-Joachim243061 46.42
409 Martin, Andrew D243055 28.12
410 Wockenfuss, Klaus243057 33.84
411 Shaboian, V.243068
412 Bellon Lopez, Juan Manuel243052 35.14
413 Langeweg, Kick242956 48.31
414 Karolyi, Tibor Jr242955 23.62
415 Banas, Jan242954 38.07
416 Yap, Andronico242957
417 Hodgson, Julian M242856 21.92
418 Wittmann, Walter242857 37.30
419 Dobrovolsky, Ladislav242860 34.52
420 Arkell, Keith C242866 24.48
421 Martinovic, Slobodan242752 39.92
422 Van Riemsdijk, Herman C242762 36.84
423 Foisor, Ovidiu242762 26.23
424 Seppeur, Reinhold242663 29.88
425 Szmetan, Jorge242661 35.09
426 Ornstein, Axel242656 33.18
427 Tiller, Bjorn242463 26.45
428 Bergstrom, Christer242473 26.76
429 Schneider, Attila242361 30.21
430 Goehring, Karl Heinz242364
431 Debarnot, Roberto242370 37.90
432 Kaiszauri, Konstanty242275 32.68
433 Westerinen, Heikki MJ242252 41.17
434 Sanna, Gianlazzaro242261 25.22
435 Borm, Franciscus WM242263
436 Damljanovic, Branko242258 24.04
437 Ilinsky, Vladimir242268
438 Bukal, Vladimir Sr242162 45.66
439 Kristiansen, Jens242150 33.10
440 Littlewood, Paul E242066 29.45
441 Loginov, Valery A242072 29.55
442 Zueger, Beat242057 24.07
443 Paehtz, Thomas Sr242050 28.82
444 Lengyel, Levente242060 52.05
445 Pliester, Leon241965 30.86
446 Levitina, Irina S241957 31.06
447 Danailov, Silvio241953 24.19
448 Schweber, Samuel241964 48.95
449 Bronstein, Luis241961 39.08
450 Garcia Martinez, Silvino241951 40.98
451 Kouatly, Bachar241956 27.32
452 Heinbuch, Detlef241859 24.47
453 Cramling, Dan241862 26.40
454 Sideif Sade, Fikret I241872 33.49
455 Krnic, Zdenko241865 37.74
456 Bohm, Hans241855 35.46
457 Brinck Claussen, Bjorn241856
458 Saidy, Anthony F241874 48.12
459 Popchev, Milko241762 20.63
460 Tomaszewski, Roman241760 25.12
461 Casper, Thomas241757 26.29
462 Eng, Holger241759 24.34
463 Ilic, Zoran241659 21.91
464 Saeed, Saeed Ahmed241658
465 Zaltsman, Vitaly F241657 43.68
466 Jakobsen, Ole241653 42.70
467 Sher, Miron N241474 33.00
468 Kestler, Hans-Günter241467 45.55
469 Zichichi, Alvise241460 46.98
470 Robatsch, Karl241459 56.71
471 Cvetkovic, Srdjan241462 39.34
472 Liang Jinrong241465 25.11
473 Welin, Thomas241372 25.82
474 Monier, Raul241270 25.15
475 Bajovic, Milan241275
476 Barle, Janez241265 33.27
477 Trifunov, Dimitar241073 21.48
478 McNab, Colin Anderson241056 24.41
479 Fedder, Steen241070 34.04
480 Hartman, Christer241065 24.68
481 Sisniega, Marcel240954 25.92
482 Grigorov, Jordan N240953 31.56
483 Pedersen, Erik240956 26.80
484 Pritchett, Craig William240967
485 Dreev, Alexey240861 16.44
486 Hartoch, Robert G240863
487 Klundt, Klaus240868 43.51
488 Zahariev, Zahari240860 23.80
489 Lalic, Bogdan240763 21.31
490 Sibarevic, Milenko240663 40.30
491 Garcia, Gildardo240661 31.31
492 Braga, Fernando240663 26.97
493 Djukic, Zeljko240563 26.05
494 Eising, Johannes240571 50.08
495 Rasmussen, Karsten240457 19.70
496 Rakic, Tomislav240368 50.63
497 Williams, Arthur Howard240375
498 Stempin, Pawel240351 25.96
499 Hawksworth, John C240264 21.56
500 Damjanovic, Mato240273 58.27

These ratings, calculated as of June 30, 1985, incorporate all games (against rated opponents) played in the time between July 1, 1984 and June 30, 1985, along with the ratings that were already calculated as of June 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 June 30, 1985. This represents the player's estimated strength on July 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 July 1, 1985. The +/- value represents the standard deviation of that estimate; the player's true strength on July 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 July 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 June 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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