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Top 10 active players as of May 31, 1986


Top 500 active players as of May 31, 1986

  #  

Player Rating +/- Best? 75%? Age
1 Kasparov, Garry K28285066.2% #223.13
2 Karpov, Anatoly E27884924.9% #335.02
3 Khalifman, Alexander2704541.8% #2420.37
4 Korchnoi, Viktor L2701481.0% #2455.19
5 Jussupow, Artur M2694500.9% #2826.30
6 Hübner, Robert2683500.5% #3537.57
7 Beliavsky, Alexander G2682500.5% #3532.46
8 Timman, Jan H2680470.3% #3634.46
9 Tal, Mikhail2677490.3% #3849.56
10 Vaganian, Rafael A2675490.3% #4034.63
11 Portisch, Lajos2674480.2% #4049.16
12 Sokolov, Andrey Y2674500.3% #4023.20
13 Ljubojevic, Ljubomir2666490.2% #4635.58
14 Psakhis, Lev B2661490.2% #5127.51
15 Lerner, Konstantin Z2658500.1% #5436.26
16 Eingorn, Viacheslav S2654500.1% #5729.52
17 Tukmakov, Vladimir B2653510.1% #5840.21
18 Polugaevsky, Lev A2652500.1% #5951.53
19 Spassky, Boris V2652480.1% #5849.34
20 Agzamov, Georgy T2650510.1% #6131.73
21 Malaniuk, Vladimir P2650510.1% #6128.86
22 Ribli, Zoltán2649490.1% #6134.73
23 Dolmatov, Sergey V2646510.1% #6427.28
24 Andersson, Ulf2645490.1% #6534.92
25 Dokhoian, Yury2640560.1% #7421.60
26 Short, Nigel D264048 #6820.99
27 Nunn, John D M263948 #6931.10
28 Miles, Anthony J263847 #7031.11
29 Chernin, Alexander M263550 #7626.23
30 Sveshnikov, Evgeny E263251 #7836.30
31 Nikolic, Predrag263050 #8025.72
32 Vasiukov, Evgeny A2629630.2% #9153.24
33 Romanishin, Oleg M262749 #8234.39
34 Gurevich, Mikhail N262652 #8527.28
35 Dorfman, Iosif D262555 #8834.08
36 Bareev, Evgeny262555 #8819.53
37 Lputian, Smbat G262449 #8528.30
38 Novikov, Igor A262451 #8724.02
39 Seirawan, Yasser262349 #8626.19
40 Bronstein, David I2623730.3% #10462.28
41 Gulko, Boris F262351 #8839.31
42 Vyzmanavin, Alexey262155 #9326.41
43 Torre, Eugenio261951 #9234.57
44 Gavrikov, Victor N261850 #9328.84
45 Chandler, Murray G261649 #9326.16
46 Larsen, Bent261551 #9651.24
47 Dvoiris, Semen I261353 #10027.58
48 Balashov, Yury S261249 #9837.22
49 Razuvaev, Yury S261250 #9940.64
50 Rozentalis, Eduardas261255 #10223.01
51 Ehlvest, Jaan261154 #10323.63
52 Smagin, Sergey260950 #10127.73
53 Makarichev, Sergey Y260855 #10632.54
54 Pintér, József260651 #10632.56
55 Christiansen, Larry M260451 #10929.92
56 Smyslov, Vassily V260351 #10965.19
57 Salov, Valery B260155 #11422.01
58 Kharitonov, Andrey Y259955 #11627.16
59 Suba, Mihai259850 #11538.99
60 Naumkin, Igor2598730.1% #13120.81
61 Ubilava, Elizbar E259751 #11635.76
62 Yudasin, Leonid G259651 #11626.81
63 Kavalek, Lubomir259652 #11742.81
64 Adorján, András259649 #11636.17
65 Sax, Gyula259649 #11634.95
66 Agdestein, Simen259551 #11919.04
67 Geller, Efim P259451 #11961.25
68 Dzindzichashvili, Roman Y259455 #12242.07
69 Tseshkovsky, Vitaly V259450 #11841.68
70 Arkhipov, Sergey259256 #12431.93
71 Yurtaev, Leonid259156 #12627.08
72 Timoshchenko, Gennady259157 #12737.09
73 Smejkal, Jan259150 #12240.19
74 Mikhalchishin, Adrian B259151 #12231.54
75 Sosonko, Gennadi259050 #12343.04
76 Zaichik, Gennady L258853 #12629.30
77 Ftácnik, Lubomír258849 #12428.59
78 Kuzmin, Gennady P258554 #13040.37
79 Darga, Klaus V2585730.1% #14452.27
80 Panchenko, Alexander N258452 #13032.65
81 Gipslis, Aivars258361 #13849.31
82 van der Wiel, John T H258249 #13026.81
83 Gheorghiu, Florin258151 #13242.15
84 Hort, Vlastimil258049 #13242.39
85 Parma, Bruno258065 #14344.42
86 Smirin, Ilia258067 #14418.36
87 Podgaets, Mikhail Y258057 #13838.86
88 Chekhov, Valery A257950 #13530.51
89 Azmaiparashvili, Zurab A257852 #13626.21
90 Yermolinsky, Alex V257855 #13928.14
91 Neverov, Valery257860 #14221.94
92 Bagirov, Vladimir K257755 #13949.79
93 Olafsson, Helgi257751 #13729.79
94 Popovic, Petar257650 #13627.30
95 Panno, Oscar R257662 #14551.21
96 Speelman, Jonathan S257549 #13629.66
97 Marjanovic, Slavoljub257450 #13931.40
98 Georgiev, Kiril257350 #14020.51
99 Tarjan, James E257359 #14634.28
100 Shneider, Aleksandr257258 #14624.03
101 Eolian, Levon S257269 26.71
102 Kochiev, Alexander257254 30.18
103 Petrosian, Arshak B257153 32.46
104 Rashkovsky, Nukhim N256851 40.12
105 Pigusov, Evgeny256752 25.17
106 Chiburdanidze, Maia G256753 25.37
107 Alburt, Lev O256650 40.78
108 Gorelov, Sergey G256654 28.79
109 Vladimirov, Evgeny Y256561 29.36
110 Vaisser, Anatoli256451 37.24
111 Savon, Vladimir A256469 45.68
112 Ivanov, Igor V256358 39.40
113 Nogueiras, Jesus256251 26.87
114 Kengis, Edvins256253 27.14
115 Cámpora, Daniel H256054 28.92
116 Byrne, Robert E255958 58.11
117 Guseinov, Aidyn255767 34.41
118 Hulak, Krunoslav255653 35.02
119 Oll, Lembit255654 20.11
120 Anikaev, Yury255670 37.92
121 Quinteros, Miguel A255550 38.43
122 Wedberg, Tom255557 32.51
123 Faragó, Iván255349 40.16
124 Knaak, Rainer F255249 33.21
125 Korzubov, Peter255260 24.41
126 Uhlmann, Wolfgang255250 51.17
127 Yakovich, Yuri255254 23.50
128 Hansen, Curt255249 21.70
129 Najdorf, Miguel255170 76.13
130 Glek, Igor V255156 24.57
131 Polovodin, Igor A255171 31.19
132 Gurgenidze, Bukhuti I255155 52.55
133 Didishko, Vereslav255071 37.14
134 Gufeld, Eduard E254964 50.20
135 Graf, Alexander254963 23.77
136 Vorotnikov, Vladislav V254959 38.79
137 Kupreichik, Viktor D254850 36.91
138 Matanovic, Aleksandar254867 56.02
139 Benjamin, Joel L254752 22.22
140 Kurajica, Bojan254652 38.54
141 Velimirovic, Dragoljub254552 44.05
142 Browne, Walter S254451 37.39
143 Mokrý, Karel254349 27.32
144 Karlsson, Lars254351 30.89
145 Gligoric, Svetozar254253 63.33
146 Huzman, Alexander254269 24.14
147 London, Dimitri254264 23.53
148 Garcia Palermo, Carlos254151 32.50
149 Henley, Ron W253957 29.49
150 Csom, István253951 45.99
151 Taimanov, Mark E253856 60.32
152 Zapata, Alonso253751 27.78
153 Dueball, Juergen253771 41.17
154 Kholmov, Ratmir D253753 61.05
155 Ostermeyer, Peter253658 42.64
156 Hazai, Laszlo253554 32.96
157 Matulovic, Milan253459 50.97
158 Ekstroem, Roland253369 30.03
159 Lobron, Eric253349 26.07
160 Spraggett, Kevin B253351 31.56
161 Arnason, Jon L253351 25.55
162 Reshevsky, Samuel H253264 74.51
163 Sturua, Zurab253159 26.97
164 Jansa, Vlastimil253150 43.51
165 Kovacevic, Vladimir253153 44.18
166 Barua, Dibyendu253059 19.59
167 Osnos, Viacheslav V253076 50.85
168 Palatnik, Semen A252957 36.18
169 Liberzon, Vladimir M252975 49.19
170 Cherepkov, Alexander V252868 65.59
171 Anand, Viswanathan252860 16.47
172 Mestel, A Jonathan252753 29.22
173 Kindermann, Stefan252749 26.43
174 Ivkov, Borislav252752 52.55
175 Kruppa, Yuri252667 21.94
176 Pétursson, Margeir252450 26.29
177 Flear, Glenn C252454 27.30
178 Rukavina, Josip252254 43.51
179 Yuferov, Sergey N252269 40.49
180 García Gonzáles, Guillermo252251 32.48
181 Gaprindashvili, Nona252164 45.08
182 Sunye Neto, Jaime252152 29.08
183 Vitolinš, Alvis252161 39.95
184 Drasko, Milan252053 23.48
185 Ionov, Sergey251974 24.40
186 Dlugy, Maxim251951 20.34
187 Ivanov, Alexander V251857 30.08
188 Groszpeter, Attila251851 25.97
189 Meduna, Eduard251852 35.72
190 Georgadze, Tamaz V251754 38.56
191 Bönsch, Uwe251750 27.63
192 Kogan, Boris251757
193 Morovic Fernández, Iván E251656 23.19
194 Fedorowicz, John P251651 27.68
195 Bischoff, Klaus251553 24.97
196 Unzicker, Wolfgang251557 60.92
197 Grigorian, Karen A251360 38.73
198 Nemet, Ivan251273 43.13
199 Velikov, Petar251252 35.17
200 Greenfeld, Alon251155 22.12
201 Cebalo, Mišo251050 41.32
202 Veingold, Aleksander251066 32.64
203 Keene, Raymond251069
204 Murey, Yakov250957 44.83
205 Vogt, Lothar H250951 34.37
206 deFirmian, Nicholas E250850 28.85
207 Klovans, Janis250659 51.14
208 Kraidman, Yair250569 53.58
209 Ivanovic, Božidar250451 39.77
210 Barbero, Gerardo F250457 24.78
211 Inkiov, Ventzislav250449 30.03
212 Gruenfeld, Yehuda250454 30.26
213 Goldin, Alexander250365 21.26
214 Gomez Baillo, Jorge H250264 27.12
215 Franco Ocampos, Zenon250271 30.05
216 Haik, Aldo250153 33.62
217 Hawelko, Marek250156 26.81
218 Barlov, Dragan250151 29.34
219 Hjartarson, Jóhann250049 23.31
220 Ziatdinov, Raset249966 27.43
221 Wolf, Volker249964 28.73
222 Kuporosov, Viktor249863 24.68
223 Basin, Leonid249857 28.52
224 Shamkovich, Leonid A249759 62.99
225 Rogers, Ian249751 25.93
226 Fernandez Garcia, Jose Luis249760 32.08
227 Suetin, Alexey S249770 59.54
228 Barbulescu, Dan249659 21.93
229 Rodriguez, Amador249651 29.73
230 Olafsson, Fridrik249674 51.35
231 Simic, Radoslav249559 37.97
232 Yrjola, Jouni249551 26.60
233 Dreev, Alexey249462 17.36
234 Lukacs, Peter249450 35.89
235 Lukin, Andrei M249360 37.76
236 Mednis, Edmar J249362 49.19
237 Lein, Anatoly249354 55.18
238 Nikolic, Zivoslav249359 32.47
239 Kuzmin, Alexey249269 23.23
240 Cvitan, Ognjen249252 24.64
241 Ghinda, Mihail Viorel249254 36.85
242 Georgiev, Krum249252 28.02
243 Moskalenko, Viktor249264 25.49
244 Kovacevic, Vladimir2249168 31.20
245 Schussler, Harry249152 28.93
246 Pytel, Krzysztof249056 41.04
247 Gofshtein, Leonid D249062 33.11
248 Plachetka, Jan249051 41.29
249 Stohl, Igor248950 21.68
250 Podzielny, Karl Heinz248967 31.72
251 Schmidt, Wlodzimierz248950 43.14
252 Vukic, Milan248959 42.78
253 Radulov, Ivan248855 47.40
254 Birnboim, Nathan248864 35.51
255 Rivas Pastor, Manuel248756 25.88
256 Tisdall, Jonathan D248756 27.76
257 Minic, Dragoljub248672 49.24
258 Mnatsakanian, Eduard A248657 47.48
259 Buturin, Vladimir248674 42.53
260 McKay, Roderick M248675 34.30
261 Tatai, Stefano248554 48.19
262 Pekarek, Ales248462 24.46
263 Lombardy, William J248457 48.49
264 Tringov, Georgy P248454 49.23
265 Staniszewski, Piotr248455 19.74
266 Plaskett, Jim248349 26.20
267 Antunes, Antonio248367 24.32
268 Vaulin, Alexander248369 29.20
269 Soppe, Guillermo248371 25.71
270 Wirthensohn, Heinz248157 35.07
271 Klaric, Zlatko248058 29.60
272 Van der Sterren, Paul248051 30.21
273 Hodgson, Julian M247952 22.85
274 Shabanov, Yury F247964 48.55
275 Popov, Luben247962 50.34
276 Donchev, Dimitar I247950 27.86
277 Epishin, Vladimir247860 20.89
278 Stoica, Valentin247764 36.29
279 Ernst, Thomas247757 25.79
280 Dizdar, Goran247754 27.49
281 Řgaard, Leif247762 34.40
282 Ree, Hans247652 41.71
283 Hebden, Mark247654 28.29
284 Kudrin, Sergey247650 26.73
285 Giorgadze, Giorgi247571 21.64
286 Portisch, Ferenc247556 47.14
287 Kirov Ivanov, Nino247552 40.73
288 Seret, Jean Luc247464
289 Rajkovic, Dusan247462 43.95
290 Ivanchuk, Vassily247461 17.20
291 Szekely, Peter247452 31.31
292 Nikolac, Juraj247465 54.11
293 Kaidanov, Gregory S247457 26.64
294 Vera, Reynaldo247353 25.40
295 Heinbuch, Detlef247358 25.39
296 Petrienko, Vladimir247367 31.23
297 Pfleger, Helmut247356 42.82
298 Petrushin, Alexander I247359 39.22
299 Khasin, Alexander247261 35.09
300 Abramovic, Boško247153 35.30
301 Helmers, Knut J247156 29.32
302 Imanaliev, Taalaibek247063
303 Raicevic, Momcilo246964
304 Espig, Lutz246955 37.40
305 Schneider, Lars Ake246960
306 Toth, Bela246958 43.12
307 Renman, Nils Gustaf246961
308 Aseev, Konstantin N246956 25.61
309 Van Wijgerden, Cornelis246768 36.02
310 Filipovic, Branko246662 28.65
311 Hug, Werner246662 33.72
312 Tashkhodzhaev, A.246668
313 Legky, Nikolay A246572 31.14
314 Hertneck, Gerald246558 22.70
315 Popchev, Milko246459 21.55
316 Andres Mendez, Miguel246470
317 Govedarica, Radovan246474 38.30
318 Benko, Pal C246465 57.88
319 Hermann, Manfred246366 43.75
320 Ligterink, Gert246355 36.54
321 Sahovic, Dragutin246256 45.81
322 Shvidler, Eliahu246263 26.45
323 Zaitsev, Igor A246265 48.01
324 Efimov, Igor246168 25.71
325 Gutman, Lev246151 40.68
326 Lau, Ralf246154 26.62
327 Braga, Fernando246158 27.89
328 Hecht, Hans-Joachim246161 47.34
329 Prandstetter, Eduard246052 37.46
330 Spassov, Liuben245952 43.19
331 Sigurjónsson, Gudmundur245954 38.68
332 Forintos, Gyözö V245957 50.84
333 Bastian, Herbert245958 33.47
334 Ardiansyah, Haji245963 34.49
335 Pachmann, Ludek245966 62.05
336 Bielczyk, Jacek245756 33.27
337 Lechtynsky, Jiri245751 38.52
338 Yap, Andronico245752
339 Qi Jingxuan245656 38.56
340 Botterill, George Steven245671
341 Bjelajac, Milan245671 38.21
342 Soltis, Andrew E245662 39.01
343 Bany, Jerzy245554 25.24
344 Peters, John A245566 35.31
345 Calvo Minguez, Ricardo245573 42.61
346 Thorsteins, Karl245555 21.63
347 Bilek, István245568 53.80
348 Schneider, Attila245457 31.13
349 Velickovic, Sasa245467 35.16
350 Tseitlin, Mikhail S245458 38.95
351 Lalic, Bogdan245460 22.23
352 Womacka, Mathias245366 19.92
353 Knezevic, Milorad245351 49.58
354 Ornstein, Axel245356 34.10
355 Polgar, Zsuzsa245350 17.12
356 Kurtenkov, Atanas245257 22.83
357 Barczay, Laszlo245262 50.28
358 Sygulski, Artur245252 25.86
359 Serper, Grigory245176 16.71
360 Cifuentes Parada, Roberto245169 28.44
361 Lanc, Alois245154 38.29
362 Lalev, Dimitar245166 26.37
363 Hartston, William R245064 38.80
364 Loginov, Valery A245058 30.47
365 Li Zunian245056 28.40
366 Klinger, Josef245052 18.98
367 Enklaar, Bertus F245070
368 Thipsay, Praveen Mahadeo244953 26.80
369 Horvath, Jozsef244954 21.80
370 Bukal, Vladimir Sr244959 46.58
371 Strauss, David J244971 39.82
372 Nun, Josef244966 52.86
373 Lanka, Zigurds244966 26.03
374 Eslon, Jaan244870 34.24
375 Wiedenkeller, Michael244855 23.39
376 Gurevich, Dmitry244853 29.72
377 Karner, Hillar244766 50.84
378 Frias, Victor J244762 30.31
379 Ricardi, Pablo244755 24.27
380 Foisor, Ovidiu244755 27.15
381 Bisguier, Arthur B244772 56.65
382 Handoko, Edhi244760 25.76
383 Spiridonov, Nikola244651 48.26
384 Mariotti, Sergio244665 39.81
385 Ermenkov, Evgenij244551 36.67
386 Hellers, Ferdinand244557 17.34
387 Hjorth, Greg244565 22.88
388 Murshed, Niaz244562 20.05
389 Garcia, Gildardo244458 32.23
390 Ambroz, Jan244457 31.95
391 Klundt, Klaus244466 44.43
392 Vokác, Marek244359 27.48
393 Alexandria, Nana244375 36.63
394 Bass, Leonid244374 29.00
395 Mascarinas, Rico244370 33.25
396 Pelts, Roman244270 49.22
397 Wilder, Michael244266 23.71
398 Mirkovic, Slobodan244274 27.84
399 Gruenberg, Hans Ulrich244152 30.39
400 Adianto, Utut244162 21.21
401 De Wit, Johannes S244062 21.68
402 Miralles, Gilles244057 20.31
403 Lengyel, Levente244059 52.96
404 Dobrovolsky, Ladislav244066 35.44
405 Santo Roman, Marc244062 25.72
406 Tischbierek, Raj244052 23.69
407 Bellin, Robert243967 33.92
408 Derikum, Axel243872 32.05
409 Nun, Jiri243875 28.84
410 Doda, Zbigniew243869 55.28
411 Kelecevic, Nedeljko243873 39.22
412 Kantsler, Boris243864 24.12
413 Veinger, Itzhak243870 47.90
414 Raicevic, Vladimir243857 37.08
415 Wittmann, Walter243759 38.22
416 Orlov, Georgi243669
417 Sanna, Gianlazzaro243664 26.14
418 Leow Leslie M243672
419 Cabrilo, Goran243664 27.91
420 Watson, William N243552 24.12
421 Kouatly, Bachar243552 28.24
422 Djuric, Stefan243352 30.85
423 Dzuban, Oleg I243274
424 Sideif Sade, Fikret I243263 34.41
425 Filipowicz, Andrzej243166 48.05
426 Danailov, Silvio243154 25.11
427 Doncevic, Dario243161 28.39
428 Van Riemsdijk, Herman C243169 37.76
429 Ghitescu, Theodor243165 52.35
430 Sisniega, Marcel243157 26.84
431 Kristiansen, Jens243151 34.02
432 McCambridge, Vincent243157 26.23
433 Zahariev, Zahari243064 24.72
434 Hernandez, Roman243054 36.52
435 Gauglitz, Gernot243060 23.92
436 Akesson, Ralf242961 25.31
437 Casper, Thomas242958 27.21
438 Reefschlaeger, Helmut242961 42.15
439 Tiller, Bjorn242871 27.37
440 Steinbacher, Matthias242866 34.71
441 Garcia Martinez, Silvino242853 41.91
442 Szmetan, Jorge242869 36.01
443 Manouck, Thierry242867 29.05
444 Robatsch, Karl242863 57.63
445 Zagrebelny, Sergey242767
446 Rigo, Janos242761 37.59
447 Ochoa de Echaguen, F Javier242770 31.74
448 Pliester, Leon242760 31.78
449 Ost Hansen, Jacob242660
450 Sznapik, Aleksander242650 35.31
451 Sharif, Mershad242666 33.89
452 Borm, Franciscus WM242562
453 Semkov, Semko242557 26.26
454 Littlewood, Paul E242475 30.37
455 Biriescu, Ioan242469 32.60
456 Jakobsen, Ole242458 43.62
457 Kishnev, Sergey242372 29.58
458 Dizdarevic, Emir242359 28.16
459 Bohm, Hans242258 36.38
460 Karolyi, Tibor Jr242256 24.54
461 Barle, Janez242166 34.19
462 Hartmann, Wolfram242064 30.02
463 Kestler, Hans-Günter242070 46.47
464 Vilela, Jose Luis242052 33.20
465 Xu Jun242064 23.71
466 Saeed, Saeed Ahmed242060
467 Pribyl, Josef242054 38.64
468 Martinovic, Slobodan242053 40.85
469 Rubinetti, Jorge A242061 41.17
470 Jailjan, M.242066
471 Pedersen, Erik242062 27.72
472 Schweber, Samuel241966 49.87
473 Cramling, Dan241869 27.32
474 Bronstein, Luis241864 39.99
475 Paulsen, Dirk241862 27.34
476 Malevinsky, Alexander A241868 36.26
477 Seppeur, Reinhold241863 30.80
478 Ilic, Zoran241765 22.83
479 Dejkalo, Stefan241754 26.63
480 Damljanovic, Branko241763 24.95
481 Adamski, Jan241752 42.55
482 Hawksworth, John C241763 22.48
483 Arkell, Keith C241769 25.40
484 Mortensen, Erling241652 31.15
485 Martin, Andrew D241660 29.04
486 Brinck Claussen, Bjorn241662
487 Wockenfuss, Klaus241555 34.76
488 Gruen, Peter241559 29.38
489 Gerusel, Mathias241573 48.32
490 Piket, Jeroen241462 17.34
491 Janssen, Han241466 26.24
492 Valkesalmi, Kimmo241456 25.08
493 McNab, Colin Anderson241361 25.33
494 Zaltsman, Vitaly F241359 44.60
495 Sehner, Norbert241261 26.32
496 Matlak, Marek241262 20.19
497 Wahls, Matthias241266 18.35
498 Gruenenwald, Joerg241169 20.98
499 Kolev, Atanas241170 18.88
500 Damjanovic, Mato241175 59.19

These ratings, calculated as of May 31, 1986, incorporate all games (against rated opponents) played in the time between June 1, 1985 and May 31, 1986, along with the ratings that were already calculated as of May 31, 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 May 31, 1986. This represents the player's estimated strength on June 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 June 1, 1986. The +/- value represents the standard deviation of that estimate; the player's true strength on June 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 June 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 May 31, 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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