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Top 10 active players as of June 30, 1986


Top 500 active players as of June 30, 1986

  #  

Player Rating +/- Best? 75%? Age
1 Kasparov, Garry K28275066.7% #223.21
2 Karpov, Anatoly E27874925.2% #335.10
3 Korchnoi, Viktor L2699481.0% #2455.27
4 Jussupow, Artur M2695501.0% #2626.38
5 Hübner, Robert2684500.6% #3337.65
6 Beliavsky, Alexander G2680500.5% #3532.54
7 Tal, Mikhail2677490.4% #3749.64
8 Vaganian, Rafael A2676490.3% #3834.71
9 Khalifman, Alexander2675540.5% #4120.45
10 Portisch, Lajos2674480.2% #3949.24
11 Sokolov, Andrey Y2672500.3% #4123.28
12 Timman, Jan H2667470.2% #4334.54
13 Ljubojevic, Ljubomir2666490.2% #4535.66
14 Psakhis, Lev B2658490.2% #5127.59
15 Lerner, Konstantin Z2657500.1% #5336.34
16 Spassky, Boris V2653480.1% #5549.42
17 Eingorn, Viacheslav S2653500.1% #5629.60
18 Tukmakov, Vladimir B2651510.1% #5840.29
19 Polugaevsky, Lev A2651500.1% #5851.61
20 Ribli, Zoltán2645490.1% #6334.81
21 Agzamov, Georgy T2645510.1% #6431.81
22 Andersson, Ulf264449 #6335.01
23 Malaniuk, Vladimir P2644510.1% #6428.94
24 Dolmatov, Sergey V2643510.1% #6627.36
25 Short, Nigel D264048 #6821.08
26 Nunn, John D M2640480.1% #6831.18
27 Dokhoian, Yury2637560.1% #7521.68
28 Miles, Anthony J263347 #7331.19
29 Vasiukov, Evgeny A2632630.2% #8553.32
30 Sveshnikov, Evgeny E263151 #7836.38
31 Nikolic, Predrag263150 #7725.80
32 Romanishin, Oleg M263049 #7734.47
33 Seirawan, Yasser262549 #8326.27
34 Chernin, Alexander M262350 #8626.31
35 Lputian, Smbat G262349 #8628.38
36 Gurevich, Mikhail N262252 #8627.36
37 Bareev, Evgeny262255 #9019.61
38 Dorfman, Iosif D262155 #9134.16
39 Novikov, Igor A261951 #9024.10
40 Pintér, József261952 #9132.64
41 Vyzmanavin, Alexey261756 #9626.49
42 Larsen, Bent261751 #9251.32
43 Chandler, Murray G261649 #9226.24
44 Gulko, Boris F261651 #9339.39
45 Gavrikov, Victor N261551 #9428.91
46 Bronstein, David I2615740.3% #11162.36
47 Balashov, Yury S261450 #9437.30
48 Torre, Eugenio261351 #9734.65
49 Rozentalis, Eduardas261254 #10123.09
50 Dvoiris, Semen I261153 #10027.66
51 Razuvaev, Yury S260850 #10140.72
52 Dzindzichashvili, Roman Y260655 #10742.15
53 Smyslov, Vassily V260451 #10765.27
54 Smagin, Sergey260450 #10627.81
55 Makarichev, Sergey Y260455 #10832.62
56 Ehlvest, Jaan260454 #10923.71
57 Christiansen, Larry M260152 #10930.01
58 Naumkin, Igor2600730.2% #12720.89
59 Yudasin, Leonid G259951 #11326.89
60 Ubilava, Elizbar E259851 #11335.84
61 Suba, Mihai259750 #11439.08
62 Sax, Gyula259549 #11435.03
63 Agdestein, Simen259552 #11719.12
64 Kharitonov, Andrey Y259455 #12027.24
65 Kavalek, Lubomir259452 #11842.89
66 Smejkal, Jan259350 #11740.27
67 Geller, Efim P259351 #11961.33
68 Salov, Valery B259355 #12122.09
69 Tseshkovsky, Vitaly V259250 #11841.76
70 Timoshchenko, Gennady259057 #12537.17
71 Adorján, András259050 #12036.25
72 Sosonko, Gennadi258851 #12343.12
73 Mikhalchishin, Adrian B258851 #12331.62
74 Yurtaev, Leonid258756 #12927.16
75 Zaichik, Gennady L258753 #12629.38
76 Kuzmin, Gennady P258454 #13040.45
77 Panchenko, Alexander N258152 #13132.73
78 van der Wiel, John T H258149 #12926.89
79 Darga, Klaus V2581730.1% #14552.35
80 Parma, Bruno2581720.1% #14444.50
81 Gheorghiu, Florin258151 #13142.23
82 Hort, Vlastimil258049 #13042.47
83 Gipslis, Aivars258062 #13949.39
84 Georgiev, Kiril257951 #13220.59
85 Arkhipov, Sergey257656 #13932.02
86 Smirin, Ilia257667 #14718.44
87 Azmaiparashvili, Zurab A257552 #13726.29
88 Chekhov, Valery A257550 #13730.59
89 Olafsson, Helgi257551 #13729.87
90 Popovic, Petar257450 #13727.38
91 Speelman, Jonathan S257449 #13729.74
92 Panno, Oscar R257463 #14651.29
93 Ftácnik, Lubomír257349 #13728.67
94 Marjanovic, Slavoljub257350 #13831.48
95 Eolian, Levon S257369 #15126.79
96 Alburt, Lev O257351 #13840.86
97 Tarjan, James E257359 #14534.36
98 Yermolinsky, Alex V257256 #14228.22
99 Podgaets, Mikhail Y257257 #14338.93
100 Bagirov, Vladimir K257255 #14249.87
101 Kochiev, Alexander257155 30.26
102 Ivanov, Igor V257059 39.48
103 Petrosian, Arshak B257053 32.54
104 Vladimirov, Evgeny Y256961 29.44
105 Neverov, Valery256960 22.02
106 Kengis, Edvins256854 27.22
107 Rashkovsky, Nukhim N256651 40.20
108 Pigusov, Evgeny256452 25.25
109 Vaisser, Anatoli256251 37.32
110 Chiburdanidze, Maia G256253 25.45
111 Savon, Vladimir A256170 45.76
112 Hansen, Curt256049 21.78
113 Gorelov, Sergey G256054 28.87
114 Cámpora, Daniel H255954 28.99
115 Hulak, Krunoslav255854 35.10
116 Anikaev, Yury255770 38.00
117 Byrne, Robert E255757 58.19
118 Shneider, Aleksandr255558 24.11
119 Nogueiras, Jesus255451 26.95
120 Wedberg, Tom255457 32.59
121 Quinteros, Miguel A255251 38.51
122 Guseinov, Aidyn255267 34.49
123 Faragó, Iván255149 40.24
124 Oll, Lembit255154 20.19
125 Knaak, Rainer F255149 33.29
126 Najdorf, Miguel255170 76.21
127 Uhlmann, Wolfgang255050 51.25
128 Didishko, Vereslav254971 37.22
129 Gurgenidze, Bukhuti I254955 52.63
130 Graf, Alexander254962 23.85
131 Korzubov, Peter254860 24.49
132 Polovodin, Igor A254871 31.27
133 Yakovich, Yuri254754 23.58
134 Benjamin, Joel L254752 22.30
135 Kurajica, Bojan254652 38.62
136 Gufeld, Eduard E254664 50.28
137 Matanovic, Aleksandar254567 56.10
138 Kupreichik, Viktor D254550 36.98
139 London, Dimitri254464 23.61
140 Velimirovic, Dragoljub254452 44.13
141 Browne, Walter S254351 37.47
142 Gligoric, Svetozar254253 63.41
143 Huzman, Alexander254269 24.22
144 Garcia Palermo, Carlos254151 32.58
145 Anand, Viswanathan253960 16.55
146 Csom, István253951 46.08
147 Karlsson, Lars253951 30.96
148 Mokrý, Karel253949 27.40
149 Dueball, Juergen253871 41.25
150 Henley, Ron W253757 29.57
151 Vorotnikov, Vladislav V253662 38.87
152 Kholmov, Ratmir D253653 61.13
153 Taimanov, Mark E253658 60.40
154 Barua, Dibyendu253659 19.67
155 Hazai, Laszlo253555 33.04
156 Zapata, Alonso253551 27.86
157 Lobron, Eric253549 26.15
158 Arnason, Jon L253551 25.63
159 Kruppa, Yuri253466 22.02
160 Glek, Igor V253356 24.65
161 Ekstroem, Roland253269 30.11
162 Ostermeyer, Peter253258 42.72
163 Reshevsky, Samuel H253264 74.59
164 Osnos, Viacheslav V253176 50.93
165 Palatnik, Semen A253057 36.26
166 Matulovic, Milan253059 51.05
167 Ivkov, Borislav252952 52.63
168 Liberzon, Vladimir M252775 49.27
169 Kindermann, Stefan252650 26.51
170 Kovacevic, Vladimir252654 44.26
171 Yuferov, Sergey N252669 40.57
172 García Gonzáles, Guillermo252652 32.56
173 Pétursson, Margeir252550 26.37
174 Spraggett, Kevin B252452 31.64
175 Vitolinš, Alvis252462 40.04
176 Gaprindashvili, Nona252364 45.16
177 Sunye Neto, Jaime252252 29.16
178 Rukavina, Josip252254 43.59
179 Flear, Glenn C252154 27.38
180 Murey, Yakov252155 44.91
181 Mestel, A Jonathan252153 29.30
182 Sturua, Zurab252059 27.06
183 Meduna, Eduard251952 35.80
184 Ivanov, Alexander V251857 30.16
185 Bönsch, Uwe251850 27.71
186 Groszpeter, Attila251851 26.06
187 Dlugy, Maxim251851 20.42
188 Jansa, Vlastimil251749 43.59
189 Cherepkov, Alexander V251775 65.67
190 Kogan, Boris251757
191 Grigorian, Karen A251660 38.81
192 Ionov, Sergey251574 24.48
193 Fedorowicz, John P251551 27.76
194 Morovic Fernández, Iván E251456 23.27
195 Bischoff, Klaus251453 25.06
196 Drasko, Milan251453 23.56
197 Unzicker, Wolfgang251257 61.01
198 Nemet, Ivan251173 43.21
199 Georgadze, Tamaz V251054 38.64
200 Greenfeld, Alon251055 22.20
201 Veingold, Aleksander250866 32.72
202 Vogt, Lothar H250851 34.45
203 deFirmian, Nicholas E250750 28.92
204 Velikov, Petar250552 35.25
205 Gruenfeld, Yehuda250454 30.34
206 Suetin, Alexey S250370 59.62
207 Hjartarson, Jóhann250350 23.39
208 Kraidman, Yair250369 53.66
209 Inkiov, Ventzislav250350 30.11
210 Hawelko, Marek250256 26.89
211 Ivanovic, Božidar250251 39.85
212 Wolf, Volker250264 28.81
213 Cebalo, Mišo250250 41.40
214 Klovans, Janis250259 51.22
215 Franco Ocampos, Zenon250171 30.13
216 Gomez Baillo, Jorge H250164 27.20
217 Barlov, Dragan250151 29.42
218 Barbero, Gerardo F250157 24.86
219 Haik, Aldo250153 33.70
220 Goldin, Alexander250165 21.34
221 Rogers, Ian249951 26.02
222 Barbulescu, Dan249859 22.02
223 Rodriguez, Amador249851 29.81
224 Basin, Leonid249857 28.60
225 Fernandez Garcia, Jose Luis249661 32.16
226 Podzielny, Karl Heinz249567 31.80
227 Kuporosov, Viktor249463 24.76
228 Yrjola, Jouni249452 26.68
229 Lukacs, Peter249450 35.97
230 Olafsson, Fridrik249474 51.43
231 Lein, Anatoly249454 55.26
232 Simic, Radoslav249359 38.06
233 Pekarek, Ales249357 24.54
234 Pytel, Krzysztof249258 41.12
235 Ghinda, Mihail Viorel249254 36.92
236 Georgiev, Krum249253 28.10
237 Kovacevic, Vladimir2249268 31.28
238 Vukic, Milan249259 42.86
239 Dreev, Alexey249261 17.44
240 Rivas Pastor, Manuel249258 25.96
241 Bastian, Herbert249258 33.55
242 Ziatdinov, Raset249166 27.51
243 Cvitan, Ognjen249152 24.72
244 Shamkovich, Leonid A249059 63.08
245 Plachetka, Jan249050 41.37
246 Schussler, Harry249052 29.02
247 Radulov, Ivan249055 47.48
248 Schmidt, Wlodzimierz249050 43.22
249 Mednis, Edmar J249062 49.27
250 Lombardy, William J248857 48.57
251 Nikolic, Zivoslav248859 32.55
252 Minic, Dragoljub248772 49.32
253 Gofshtein, Leonid D248762 33.19
254 Birnboim, Nathan248764 35.59
255 Staniszewski, Piotr248555 19.82
256 Tisdall, Jonathan D248456 27.84
257 Dizdar, Goran248454 27.57
258 Stohl, Igor248350 21.76
259 Tatai, Stefano248354 48.27
260 Mnatsakanian, Eduard A248357 47.56
261 Kuzmin, Alexey248369 23.31
262 Donchev, Dimitar I248251 27.94
263 Antunes, Antonio248167 24.40
264 Soppe, Guillermo248171 25.79
265 Moskalenko, Viktor248163 25.57
266 Vaulin, Alexander248069 29.28
267 Tringov, Georgy P248055 49.31
268 Wirthensohn, Heinz248057 35.15
269 Shabanov, Yury F247964 48.63
270 Lukin, Andrei M247965 37.84
271 Epishin, Vladimir247860 20.96
272 McKay, Roderick M247875 34.38
273 Van der Sterren, Paul247851 30.29
274 Popov, Luben247862 50.42
275 Hodgson, Julian M247853 22.92
276 Kirov Ivanov, Nino247852 40.81
277 Ree, Hans247852 41.79
278 Buturin, Vladimir247875 42.61
279 Klaric, Zlatko247858 29.68
280 Ernst, Thomas247757 25.87
281 Stoica, Valentin247764 36.37
282 Giorgadze, Giorgi247671 21.72
283 Plaskett, Jim247650 26.28
284 Portisch, Ferenc247656 47.22
285 Kudrin, Sergey247550 26.81
286 Ivanchuk, Vassily247561 17.28
287 Lechtynsky, Jiri247450 38.60
288 Řgaard, Leif247462 34.48
289 Hebden, Mark247454 28.37
290 Abramovic, Boško247253 35.38
291 Seret, Jean Luc247164
292 Petrushin, Alexander I247159 39.30
293 Szekely, Peter247152 31.39
294 Pfleger, Helmut247156 42.90
295 Vera, Reynaldo247153 25.48
296 Imanaliev, Taalaibek247163
297 Nikolac, Juraj247066 54.19
298 Petrienko, Vladimir247067 31.31
299 Khasin, Alexander247061 35.17
300 Kaidanov, Gregory S246957 26.72
301 Espig, Lutz246955 37.48
302 Toth, Bela246858 43.20
303 Helmers, Knut J246757 29.40
304 Renman, Nils Gustaf246761
305 Raicevic, Momcilo246664
306 Thorsteins, Karl246655 21.71
307 Schneider, Lars Ake246560
308 Filipovic, Branko246562 28.73
309 Hug, Werner246562 33.80
310 Van Wijgerden, Cornelis246569 36.10
311 Enklaar, Bertus F246470
312 Govedarica, Radovan246474 38.38
313 Legky, Nikolay A246472 31.22
314 Andres Mendez, Miguel246470
315 Sahovic, Dragutin246456 45.89
316 Lalev, Dimitar246469 26.45
317 Tashkhodzhaev, A.246368
318 Efimov, Igor246268 25.79
319 Vokác, Marek246256 27.56
320 Shvidler, Eliahu246263 26.53
321 Popchev, Milko246259 21.63
322 Gutman, Lev246151 40.76
323 Hecht, Hans-Joachim246161 47.42
324 Pachmann, Ludek246166 62.13
325 Botterill, George Steven246071
326 Braga, Fernando246058 27.97
327 Ligterink, Gert246055 36.62
328 Soltis, Andrew E246062 39.09
329 Zaitsev, Igor A246065 48.09
330 Sigurjónsson, Gudmundur246054 38.76
331 Bany, Jerzy245954 25.32
332 Lau, Ralf245954 26.70
333 Spassov, Liuben245953 43.27
334 Wiedenkeller, Michael245854 23.47
335 Bielczyk, Jacek245856 33.35
336 Benko, Pal C245866 57.95
337 Aseev, Konstantin N245757 25.69
338 Ardiansyah, Haji245763 34.57
339 Rajkovic, Dusan245663 44.04
340 Yap, Andronico245652
341 Polgar, Zsuzsa245650 17.20
342 Peters, John A245666 35.39
343 Kishnev, Sergey245672 29.66
344 Prandstetter, Eduard245652 37.54
345 Womacka, Mathias245566 20.01
346 Hermann, Manfred245566 43.83
347 Knezevic, Milorad245451 49.66
348 Calvo Minguez, Ricardo245473 42.69
349 Mirkovic, Slobodan245474 27.92
350 Bjelajac, Milan245471 38.29
351 Lalic, Bogdan245360 22.31
352 Velickovic, Sasa245367 35.24
353 Tseitlin, Mikhail S245358 39.04
354 Schneider, Attila245357 31.21
355 Frias, Victor J245263 30.39
356 Lanc, Alois245254 38.37
357 Lanka, Zigurds245269 26.11
358 Bilek, István245268 53.88
359 Kurtenkov, Atanas245257 22.91
360 Sygulski, Artur245252 25.93
361 Barczay, Laszlo245262 50.36
362 Serper, Grigory245276 16.79
363 Hertneck, Gerald245158 22.78
364 Handoko, Edhi245160 25.84
365 Hartston, William R245164 38.88
366 Forintos, Gyözö V245157 50.91
367 Cifuentes Parada, Roberto245069 28.52
368 Sehner, Norbert245059 26.40
369 Mascarinas, Rico244971 33.33
370 Klinger, Josef244952 19.06
371 Garcia, Gildardo244959 32.31
372 Heinbuch, Detlef244858 25.47
373 Thipsay, Praveen Mahadeo244853 26.88
374 Bukal, Vladimir Sr244859 46.66
375 Li Zunian244856 28.48
376 Horvath, Jozsef244854 21.88
377 Strauss, David J244771 39.90
378 Nun, Josef244766 52.93
379 Ricardi, Pablo244755 24.35
380 Loginov, Valery A244758 30.55
381 Eslon, Jaan244670 34.32
382 Foisor, Ovidiu244655 27.23
383 Ornstein, Axel244656 34.18
384 Hellers, Ferdinand244657 17.42
385 Ambroz, Jan244557 32.03
386 Karner, Hillar244566 50.92
387 Mariotti, Sergio244565 39.89
388 Spiridonov, Nikola244452 48.34
389 Qi Jingxuan244358 38.64
390 Ermenkov, Evgenij244251 36.75
391 Bass, Leonid244274 29.08
392 Gurevich, Dmitry244253 29.80
393 Kelecevic, Nedeljko244274 39.30
394 Hjorth, Greg244265 22.95
395 Wilder, Michael244166 23.79
396 Gruenberg, Hans Ulrich244152 30.47
397 Dobrovolsky, Ladislav244066 35.52
398 Kouatly, Bachar243952 28.32
399 Tischbierek, Raj243952 23.77
400 Pelts, Roman243970 49.30
401 Doda, Zbigniew243869 55.36
402 Lengyel, Levente243859 53.05
403 Derikum, Axel243872 32.13
404 Adianto, Utut243862 21.29
405 Cabrilo, Goran243764 27.99
406 Santo Roman, Marc243662 25.80
407 Veinger, Itzhak243670 47.98
408 Sanna, Gianlazzaro243664 26.22
409 Murshed, Niaz243663 20.13
410 Orlov, Georgi243669
411 Raicevic, Vladimir243557 37.16
412 Miralles, Gilles243557 20.39
413 Watson, William N243352 24.20
414 Nun, Jiri243261 28.92
415 Wittmann, Walter243259 38.30
416 Gruen, Peter243259 29.46
417 Pliester, Leon243262 31.86
418 Leow Leslie M243272
419 Ochoa de Echaguen, F Javier243270 31.82
420 Reefschlaeger, Helmut243261 42.23
421 Kantsler, Boris243264 24.20
422 Sznapik, Aleksander243250 35.39
423 Djuric, Stefan243252 30.92
424 Doncevic, Dario243161 28.47
425 Sideif Sade, Fikret I243163 34.49
426 Filipowicz, Andrzej243166 48.13
427 Jakobsen, Ole243156 43.70
428 Gauglitz, Gernot243160 24.01
429 Bellin, Robert243168 33.99
430 Zagrebelny, Sergey243167
431 Casper, Thomas243058 27.29
432 Klundt, Klaus243065 44.51
433 Ghitescu, Theodor242965 52.43
434 McCambridge, Vincent242957 26.31
435 Pribyl, Josef242955 38.72
436 Hernandez, Roman242954 36.60
437 Steinbacher, Matthias242866 34.79
438 Van Riemsdijk, Herman C242869 37.84
439 Kristiansen, Jens242851 34.10
440 Dzuban, Oleg I242874
441 Garcia Martinez, Silvino242753 41.98
442 Robatsch, Karl242763 57.71
443 Zahariev, Zahari242764 24.80
444 Rigo, Janos242761 37.67
445 Szmetan, Jorge242769 36.09
446 Manouck, Thierry242667 29.13
447 Sharif, Mershad242666 33.96
448 Akesson, Ralf242661 25.39
449 Ost Hansen, Jacob242660
450 Tiller, Bjorn242571 27.45
451 Borm, Franciscus WM242562
452 De Wit, Johannes S242462 21.76
453 Vilela, Jose Luis242352 33.28
454 Biriescu, Ioan242369 32.68
455 Kestler, Hans-Günter242370 46.55
456 Danailov, Silvio242254 25.19
457 Mortensen, Erling242253 31.23
458 Littlewood, Paul E242175 30.45
459 Trapl, Jindrich242164 44.27
460 Martin, Andrew D242160 29.12
461 Bohm, Hans242058 36.46
462 Adamski, Jan242053 42.63
463 Xu Jun241964 23.79
464 Cramling, Dan241970 27.40
465 Martinovic, Slobodan241954 40.92
466 Karolyi, Tibor Jr241956 24.62
467 Gerusel, Mathias241973 48.40
468 Scheeren, Peter241962 30.91
469 Ilic, Zoran241865 22.91
470 Rubinetti, Jorge A241861 41.25
471 Bronstein, Luis241864 40.08
472 Schweber, Samuel241866 49.95
473 Piket, Jeroen241762 17.42
474 Damljanovic, Branko241763 25.04
475 Hartmann, Wolfram241764 30.10
476 Langeweg, Kick241759 49.31
477 Dejkalo, Stefan241754 26.71
478 Hawksworth, John C241763 22.56
479 Seppeur, Reinhold241763 30.88
480 Jailjan, M.241666
481 Gruenenwald, Joerg241669 21.07
482 Malevinsky, Alexander A241668 36.34
483 Arkell, Keith C241569 25.48
484 Blatny, Pavel241554 18.02
485 Janssen, Han241366 26.32
486 Dizdarevic, Emir241359 28.24
487 Barle, Janez241373 34.27
488 Matlak, Marek241362 20.27
489 Wockenfuss, Klaus241256 34.84
490 Brinck Claussen, Bjorn241260
491 Condie, Mark L241260 21.38
492 Damjanovic, Mato241175 59.27
493 Valkesalmi, Kimmo241156 25.16
494 McNab, Colin Anderson241161 25.41
495 Sisniega, Marcel241060 26.92
496 Pedersen, Erik241062 27.80
497 Saeed, Saeed Ahmed241064
498 Banas, Jan240952 39.07
499 Zaltsman, Vitaly F240859 44.68
500 Semkov, Semko240857 26.34

These ratings, calculated as of June 30, 1986, incorporate all games (against rated opponents) played in the time between July 1, 1985 and June 30, 1986, along with the ratings that were already calculated as of June 30, 1985. 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, 1986. This represents the player's estimated strength on July 1, 1986.

+/- 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, 1986. The +/- value represents the standard deviation of that estimate; the player's true strength on July 1, 1986 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, 1986. 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, 1986. 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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