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Top 10 active players as of April 30, 1984


Top 500 active players as of April 30, 1984

  #  

Player Rating +/- Best? 75%? Age
1 Kasparov, Garry K28265168.6% #221.05
2 Karpov, Anatoly E27744918.4% #532.93
3 Korchnoi, Viktor L2711492.1% #1953.10
4 Beliavsky, Alexander G2706501.8% #2130.37
5 Timman, Jan H2697470.9% #2532.38
6 Polugaevsky, Lev A2697511.1% #2549.44
7 Portisch, Lajos2691490.7% #2847.07
8 Vaganian, Rafael A2690500.8% #2832.54
9 Smyslov, Vassily V2685520.7% #3263.10
10 Dolmatov, Sergey V2682530.7% #3425.19
11 Eingorn, Viacheslav S2675540.6% #3927.43
12 Ljubojevic, Ljubomir2673490.3% #3833.49
13 Spassky, Boris V2665490.2% #4447.25
14 Andersson, Ulf2664480.2% #4332.84
15 Petrosian, Tigran V2663510.3% #4554.87
16 Ribli, Zoltán2659500.2% #4832.65
17 Tal, Mikhail2655490.1% #5147.47
18 Romanishin, Oleg M2654490.1% #5032.30
19 Hübner, Robert2652500.1% #5335.48
20 Gulko, Boris F2651530.2% #5537.22
21 Chernin, Alexander M2650540.2% #5724.15
22 Miles, Anthony J2647480.1% #5629.02
23 Dorfman, Iosif D2644510.1% #6031.99
24 Salov, Valery B2643590.2% #6619.92
25 Dvoiris, Semen I2641570.2% #6625.49
26 Psakhis, Lev B2640490.1% #6225.42
27 Jussupow, Artur M263950 #6424.21
28 Vyzmanavin, Alexey2638550.1% #6824.33
29 Lputian, Smbat G2635520.1% #6926.21
30 Kupreichik, Viktor D263452 #6934.82
31 Sosonko, Gennadi263450 #6840.94
32 Hort, Vlastimil262949 #7240.30
33 Agzamov, Georgy T262753 #7729.65
34 Ftácnik, Lubomír262448 #7626.50
35 Sveshnikov, Evgeny E262451 #7734.22
36 Malaniuk, Vladimir P262353 #7926.78
37 Ehlvest, Jaan2623550.1% #8221.54
38 Geller, Efim P262051 #8159.16
39 Nunn, John D M262049 #8029.01
40 Sokolov, Andrey Y262054 #8421.11
41 Seirawan, Yasser261949 #8124.10
42 Browne, Walter S261950 #8235.30
43 Bronstein, David I2618580.1% #8860.20
44 Nikolic, Predrag261850 #8323.64
45 Kuzmin, Gennady P261754 #8638.28
46 Larsen, Bent261651 #8549.15
47 Balashov, Yury S261650 #8535.13
48 Tseshkovsky, Vitaly V261450 #8739.60
49 Tukmakov, Vladimir B261450 #8638.12
50 Vasiukov, Evgeny A261454 #8951.15
51 Lerner, Konstantin Z261451 #8834.17
52 Chekhov, Valery A261351 #8828.43
53 Kavalek, Lubomir260852 #9340.72
54 Razuvaev, Yury S260652 #9538.55
55 Adorján, András260448 #9534.08
56 Christiansen, Larry M260451 #9727.84
57 Novikov, Igor A260257 #10221.93
58 Kochiev, Alexander260055 #10328.10
59 Yudasin, Leonid G259653 #10724.73
60 Gipslis, Aivars259558 #11147.23
61 Gavrikov, Victor N259452 #10826.75
62 Parma, Bruno2593730.1% #12342.33
63 Dvoretsky, Mark I259165 #11936.39
64 Sax, Gyula259049 #11032.87
65 Makarichev, Sergey Y259052 #11230.45
66 Yurtaev, Leonid258855 #11624.99
67 Didishko, Vereslav258759 #12035.05
68 Smejkal, Jan258651 #11538.11
69 Vaisser, Anatoli258653 #11735.15
70 Mikhalchishin, Adrian B258651 #11529.45
71 Vorotnikov, Vladislav V258660 #12236.70
72 Timoshchenko, Gennady258359 #12435.01
73 Knaak, Rainer F258150 #12031.12
74 Zaichik, Gennady L258154 #12327.22
75 Rozentalis, Eduardas257861 #13020.92
76 Kremenetsky, Anatoly M257762 #13345.29
77 Georgadze, Tamaz V257655 #12836.47
78 Gheorghiu, Florin257551 #12740.07
79 Kharitonov, Andrey Y257554 #12925.07
80 Azmaiparashvili, Zurab A257152 #13224.12
81 Byrne, Robert E257157 #13456.03
82 Petrosian, Arshak B257152 #13130.37
83 Panno, Oscar R257161 #13749.12
84 Dzindzichashvili, Roman Y257055 #13439.98
85 Averkin, Orest N2570730.1% #14640.18
86 van der Wiel, John T H256849 #13224.72
87 Naumkin, Igor256669 #14718.72
88 Kurajica, Bojan256549 #13536.46
89 Pigusov, Evgeny256558 #14223.08
90 Ubilava, Elizbar E256553 #13833.68
91 Taimanov, Mark E256558 #14158.23
92 Podgaets, Mikhail Y256565 #14636.77
93 Chandler, Murray G256449 #13624.07
94 Torre, Eugenio256350 #13732.49
95 Gorelov, Sergey G256358 #14326.70
96 Mestel, A Jonathan256250 #13827.13
97 Savon, Vladimir A256061 #14843.59
98 Speelman, Jonathan S255949 #14227.58
99 Rashkovsky, Nukhim N255853 #14438.03
100 Ivanovic, Božidar255750 #14337.68
101 Anikaev, Yury255655 35.84
102 Zilberman, Nathan R255663 43.98
103 Kholmov, Ratmir D255554 58.96
104 Bagirov, Vladimir K255451 47.71
105 Karlsson, Lars255450 28.80
106 Kovacevic, Vladimir255452 42.09
107 Panchenko, Alexander N255352 30.57
108 Cebalo, Mišo255153 39.23
109 Korzubov, Peter255053 22.33
110 Short, Nigel D254850 18.91
111 Quinteros, Miguel A254752 36.34
112 Faragó, Iván254750 38.08
113 Marjanovic, Slavoljub254750 29.32
114 Guseinov, Aidyn254655 32.33
115 Polovodin, Igor A254657 29.10
116 Tarjan, James E254553 32.19
117 Reshevsky, Samuel H254358 72.43
118 Velimirovic, Dragoljub254252 41.96
119 Pintér, József254052 30.47
120 Zakharov, Alexander V254067 40.56
121 Stean, Michael F253958 30.65
122 Vitolinš, Alvis253958 37.87
123 Popovic, Petar253954 25.21
124 Shamkovich, Leonid A253852 60.91
125 Suba, Mihai253850 36.91
126 Ivanov, Igor V253751 37.31
127 Gufeld, Eduard E253655 48.11
128 Uhlmann, Wolfgang253450 49.09
129 Csom, István253450 43.91
130 Kudrin, Sergey253350 24.65
131 Yermolinsky, Alex V253360 26.05
132 Gligoric, Svetozar253350 61.24
133 Lombardy, William J253358 46.40
134 Palatnik, Semen A253261 34.09
135 Abramovic, Boško253250 33.21
136 Veingold, Aleksander253161 30.55
137 deFirmian, Nicholas E253150 26.76
138 Oll, Lembit253156 18.02
139 Sturua, Zurab253060 24.89
140 Weinstein, Norman253074 33.57
141 Henley, Ron W253051 27.40
142 Thipsay, Praveen Mahadeo252959 24.72
143 Meduna, Eduard252949 33.64
144 Mokrý, Karel252952 25.23
145 Barua, Dibyendu252859 17.51
146 Simic, Radoslav252854 35.89
147 Shneider, Aleksandr252857 21.93
148 Nikolic, Zivoslav252756 30.38
149 Alburt, Lev O252750 38.69
150 Najdorf, Miguel252660 74.04
151 Shereshevsky, Mikhail I252474 34.03
152 Andrianov, Nikolai252461 22.36
153 Liberzon, Vladimir M252359 47.10
154 Ivanov, Alexander V252170 27.99
155 Vogt, Lothar H252150 32.29
156 Ivkov, Borislav252153 50.47
157 Osnos, Viacheslav V252062 48.77
158 Mnatsakanian, Eduard A251962 45.40
159 Nemet, Ivan251863 41.04
160 Unzicker, Wolfgang251854 58.84
161 Spraggett, Kevin B251857 29.47
162 Wedberg, Tom251850 30.43
163 Hazai, Laszlo251752 30.88
164 Kengis, Edvins251755 25.05
165 Groszpeter, Attila251652 23.89
166 Pfleger, Helmut251654 40.73
167 Ostermeyer, Peter251654 40.55
168 Lobron, Eric251549 23.97
169 Gurevich, Dmitry251550 27.64
170 Tseitlin, Mikhail S251458 36.87
171 Velikov, Petar251450 33.08
172 Klovans, Janis251356 49.06
173 Tatai, Stefano251354 46.10
174 Vladimirov, Evgeny Y251260 27.28
175 Smagin, Sergey251165 25.64
176 Grigorian, Karen A251061 36.65
177 Gurevich, Mikhail N251062 25.19
178 Pachmann, Ludek250972 59.96
179 Agdestein, Simen250954 16.95
180 Gurgenidze, Bukhuti I250958 50.46
181 McKay, Roderick M250974 32.22
182 Glek, Igor V250861 22.48
183 Inkiov, Ventzislav250849 27.94
184 Cámpora, Daniel H250854 26.83
185 Hansen, Curt250851 19.62
186 Bukic, Enver250764 46.41
187 Chiburdanidze, Maia G250758 23.29
188 Malich, Burkhard G250663 47.42
189 Keene, Raymond250655
190 Ree, Hans250650 39.62
191 Lukacs, Peter250551 33.81
192 Spassov, Liuben250450 41.11
193 Nikolac, Juraj250463 52.02
194 Biyiasas, Peter250374 33.45
195 Szabó, László250375 67.11
196 García Gonzáles, Guillermo250351 30.39
197 Donchev, Dimitar I250252 25.78
198 Jamieson, Robert Murray250075
199 Matanovic, Aleksandar249971 53.93
200 Greenfeld, Alon249958 20.04
201 Espig, Lutz249951 35.32
202 Franco Ocampos, Zenon249757 27.96
203 Kogan, Boris249758
204 Drasko, Milan249660 21.40
205 Vukic, Milan249554 40.70
206 Petrushin, Alexander I249559 37.14
207 Antoshin, Vladimir S249563 54.95
208 Bikhovsky, Avigdor I249462 29.15
209 Hulak, Krunoslav249450 32.92
210 Kruppa, Yuri249467 19.86
211 Stohl, Igor249255 19.59
212 Lein, Anatoly249252 53.09
213 Suetin, Alexey S249256 57.46
214 Schussler, Harry249151 26.85
215 Djuric, Stefan249153 28.76
216 Nogueiras, Jesus249052 24.79
217 Řgaard, Leif249056 32.32
218 Schmidt, Wlodzimierz249049 41.05
219 Georgiev, Krum249051 25.93
220 Lechtynsky, Jiri248950 36.43
221 Olafsson, Fridrik248960 49.26
222 Matulovic, Milan248953 48.89
223 Díez del Corral, Jesús248867 51.07
224 Benko, Pal C248759 55.79
225 Todorcevic, Miodrag248770 43.47
226 Peters, John A248770 33.22
227 Padevsky, Nikola B248763 50.91
228 Gruenfeld, Yehuda248657 28.17
229 Olafsson, Helgi248652 27.71
230 Mortensen, Erling248651 29.07
231 Kindermann, Stefan248551 24.34
232 Sunye Neto, Jaime248552 26.99
233 Podzielny, Karl Heinz248460 29.64
234 Schneider, Lars Ake248453
235 Arnason, Jon L248451 23.46
236 Pribyl, Josef248351 36.55
237 Strauss, David J248375 37.73
238 Lukin, Andrei M248359 35.67
239 Bilek, István248263 51.72
240 Sigurjónsson, Gudmundur248152 36.60
241 Fernandez Garcia, Jose Luis248159 29.98
242 Gruenberg, Hans Ulrich248053 28.31
243 Jansa, Vlastimil248049 41.43
244 Mednis, Edmar J248059 47.11
245 Rukavina, Josip248055 41.42
246 Zaitsev, Igor A247956 45.92
247 Rodriguez, Amador247952 27.64
248 Rajkovic, Dusan247852 41.87
249 Radulov, Ivan247850 45.31
250 Wolf, Volker247765 26.65
251 Zapata, Alonso247652 25.69
252 Murey, Yakov247651 42.74
253 Ghinda, Mihail Viorel247556 34.76
254 Soltis, Andrew E247559 36.92
255 Bönsch, Uwe247551 25.54
256 Klaric, Zlatko247568 27.52
257 Hug, Werner247573 31.64
258 Danailov, Silvio247458 23.03
259 London, Dimitri247468 21.44
260 Plachetka, Jan247449 39.20
261 Hjartarson, Jóhann247352 21.23
262 Tavadian, Ragik247362
263 Portisch, Ferenc247255 45.06
264 Popov, Luben247256 48.26
265 Van der Sterren, Paul247251 28.12
266 Adamski, Jan247050 40.47
267 Szekely, Peter247053 29.23
268 Kraidman, Yair247064 51.50
269 Pétursson, Margeir247052 24.21
270 Tringov, Georgy P246954 47.15
271 Mariotti, Sergio246963 37.72
272 Gutman, Lev246954 38.59
273 Zaltsman, Vitaly F246857 42.51
274 Bastian, Herbert246756 31.39
275 Kaidanov, Gregory S246761 24.55
276 Shvidler, Eliahu246659 24.36
277 Birnboim, Nathan246560 33.43
278 Stoica, Valentin246558 34.21
279 Barczay, Laszlo246456 48.19
280 Taulbut, Shaun M246265 26.30
281 Kristiansen, Jens246252 31.92
282 Van Wijgerden, Cornelis246255 33.93
283 Pytel, Krzysztof246258 38.95
284 Bisguier, Arthur B246163 54.56
285 Vera, Reynaldo246152 23.31
286 Eslon, Jaan246166 32.15
287 Arbakov, Valentin246162 32.26
288 Velickovic, Sasa246062 33.08
289 Martin, Andrew D246058 26.94
290 Helmers, Knut J246055 27.23
291 Spiridonov, Nikola246051 46.17
292 Pekarek, Ales246071 22.37
293 Robatsch, Karl246058 55.54
294 Hebden, Mark246052 26.21
295 Karner, Hillar245960 48.76
296 Prandstetter, Eduard245853 35.37
297 Duer, Arne245875 24.80
298 Gomez Baillo, Jorge H245769 25.03
299 Nun, Jiri245761 26.76
300 Zuckerman, Bernard245672 41.08
301 Fedorowicz, John P245658 25.59
302 Renman, Nils Gustaf245671
303 Lederman, Leon245669 36.92
304 Hamann, Svend245664 43.56
305 Mirkovic, Slobodan245563 25.76
306 Govedarica, Radovan245572 36.21
307 Legky, Nikolay A245567 29.05
308 Hartston, William R245567 36.72
309 Dizdar, Goran245454 25.40
310 Mochalov, Evgeny V245469 32.50
311 Sznapik, Aleksander245449 33.22
312 Rodriguez, Ruben245464 37.40
313 Lazic, Miroljub245468 17.84
314 Vokác, Marek245370 25.40
315 Hebert, Jean245367 26.47
316 Rohde, Michael A245375 24.68
317 Sygulski, Artur245254 23.77
318 Sahovic, Dragutin245253 43.73
319 Kuzmin, Alexey245265 21.14
320 Kirov Ivanov, Nino245252 38.64
321 Toth, Bela245154 41.03
322 Wockenfuss, Klaus245059 32.67
323 Graf, Alexander245069 21.68
324 Ost Hansen, Jacob245055
325 Botterill, George Steven245073
326 Plaskett, Jim245054 24.12
327 Martinovic, Slobodan245053 38.76
328 Bjelajac, Milan244957 36.13
329 Hecht, Hans-Joachim244967 45.25
330 Ionov, Sergey244967 22.31
331 Szmetan, Jorge244668 33.92
332 Hermann, Manfred244561 41.66
333 Ligterink, Gert244552 34.45
334 Ardiansyah, Haji244554 32.40
335 Forintos, Gyözö V244459 48.75
336 Feustel, Bernd244364 29.61
337 Knezevic, Milorad244350 47.50
338 Lanka, Zigurds244261 23.94
339 Frias, Victor J244256 28.22
340 Commons, Kim S244272 32.77
341 Levitina, Irina S244260 29.89
342 Cvetkovic, Srdjan244258 38.17
343 Ernst, Thomas244264 23.70
344 Neckar, Lubomir244166 33.74
345 Ambroz, Jan244157 29.87
346 Jakobsen, Ole244153 41.53
347 Nurkic, Sahbaz244165 28.13
348 Nun, Josef244060 50.77
349 Zilberstein, Valery I244065 41.05
350 Cabrilo, Goran244053 25.83
351 Lau, Ralf244060 24.53
352 Bass, Leonid243961 26.91
353 Cifuentes Parada, Roberto243972 26.36
354 Nei, Iivo243964 52.50
355 Foisor, Ovidiu243956 25.07
356 Rubinetti, Jorge A243865 39.08
357 McCambridge, Vincent243854 24.14
358 Bellin, Robert243865 31.83
359 Lalev, Dimitar243759 24.29
360 Schweber, Samuel243769 47.79
361 Cvitan, Ognjen243760 22.55
362 Giorgadze, Giorgi243765 19.55
363 Donner, Johannes H243765 56.82
364 Tischbierek, Raj243652 21.60
365 Goehring, Karl Heinz243664
366 Barlov, Dragan243652 27.25
367 Bronstein, Luis243568 37.91
368 Rivas Pastor, Manuel243553 23.80
369 Yrjola, Jouni243562 24.52
370 Raicevic, Vladimir243567 34.99
371 Bischoff, Klaus243554 22.89
372 Ghitescu, Theodor243568 50.27
373 Rodriguez Vargas, Orestes243571 40.82
374 Filipovic, Branko243571 26.57
375 Eng, Holger243365 23.18
376 Watson, John L243367 32.65
377 Ciric, Dragoljub M243373 48.47
378 Scheeren, Peter243257 28.75
379 Schneider, Attila243254 29.04
380 Haik, Aldo243259 31.53
381 Ornstein, Axel243155 32.02
382 Wirthensohn, Heinz243058 32.98
383 Hernandez, Roman243052 34.44
384 Wittmann, Walter243060 36.13
385 Rantanen, Yrjo A243056 34.02
386 Doda, Zbigniew243065 53.19
387 Qi Jingxuan242964 36.47
388 Thorsteins, Karl242858 19.55
389 Mascarinas, Rico242868 31.16
390 Palacios, Antonio242871 31.46
391 Hase, Juan Carlos242767
392 Brinck Claussen, Bjorn242755
393 Makropoulos, Georgios242667 30.59
394 Wilder, Michael242668 21.62
395 Bohm, Hans242654 34.29
396 Abreu, Jorge D242669 25.87
397 Garcia Palermo, Carlos242457 30.41
398 Ilic, Zoran242463 20.74
399 Alexandria, Nana242469 34.55
400 Benjamin, Joel L242459 20.14
401 Tiller, Bjorn242357 25.29
402 Tisdall, Jonathan D242356 25.68
403 Seppeur, Reinhold242265 28.71
404 Tompa, Janos242167 36.99
405 Lukov, Valentin242052 28.39
406 Loginov, Valery A242065 28.38
407 Dobrovolsky, Ladislav242056 33.35
408 Westerinen, Heikki MJ242051 40.01
409 Sisniega, Marcel241958 24.76
410 Littlewood, Paul E241859 28.28
411 Garcia Martinez, Silvino241851 39.82
412 Bajovic, Milan241866
413 Trapl, Jindrich241773 42.10
414 Kelecevic, Nedeljko241762 37.14
415 Flear, Glenn C241766 25.22
416 Maki, Veijo241658 25.40
417 Moskalenko, Viktor241667 23.40
418 Casper, Thomas241656 25.12
419 Bielczyk, Jacek241653 31.19
420 Bouaziz, Slim241555 34.04
421 Piasetski, Leon David241569
422 Semkov, Semko241557 24.17
423 Hartoch, Robert G241464
424 Krnic, Zdenko241458 36.58
425 Langeweg, Kick241454 47.15
426 Sideif Sade, Fikret I241463 32.33
427 Hausner, Ivan241461 32.04
428 Kestler, Hans-Günter241466 44.38
429 Kuligowski, Adam241456 28.35
430 Kaiszauri, Konstanty241466 31.51
431 Rogers, Ian241355 23.85
432 Reefschlaeger, Helmut241360 40.06
433 Sharif, Mershad241373 31.80
434 Vilela, Jose Luis241252 31.11
435 Zahariev, Zahari241267 22.64
436 Horvath, Tamas241253 32.52
437 Moe, Mogens241275 40.13
438 Bojkovic, Slobodan241167 38.76
439 Pliester, Leon241163 29.69
440 Gruen, Peter241058 27.29
441 Sher, Miron N241067 31.84
442 Karpeshov, Oleg241067 30.23
443 Pritchett, Craig William241070
444 Borm, Franciscus WM240961
445 Ravikumar, Vaidyanathan240962 24.34
446 Aseev, Konstantin N240960 23.53
447 Zichichi, Alvise240958 45.82
448 Handoko, Edhi240956 23.67
449 Damljanovic, Branko240862 22.87
450 Morovic Fernández, Iván E240874 21.10
451 Lengyel, Levente240858 50.88
452 Kagan, Shimon240760 42.07
453 Georgiev, Kiril240654 18.42
454 Moehring, Guenther240662 47.43
455 Djukic, Zeljko240357 24.88
456 Banas, Jan240355 36.91
457 Petran, Pal240272 37.62
458 Herzog, Adolf240270 30.90
459 Tomaszewski, Roman240171 23.95
460 Akesson, Ralf240162 23.23
461 Kataev, Simcho240167
462 Kunsztowicz, Uwe240066 40.28
463 Gross, Stefan240060 34.67
464 Adianto, Utut239958 19.12
465 Damjanovic, Mato239964 57.10
466 Rocha, Antonio239974 39.88
467 Danner, Georg239961 37.51
468 Davies, Nigel R239963 23.75
469 Bany, Jerzy239966 23.15
470 Hartmann, Wolfram239869 27.93
471 Stempin, Pawel239854 24.80
472 Doncevic, Dario239863 26.30
473 Sydor, Andrzej239857 47.32
474 Heinbuch, Detlef239869 23.31
475 Trifunov, Dimitar239765 20.32
476 Ermenkov, Evgenij239752 34.59
477 Szymczak, Zbigniew239651 32.32
478 Shirazi, Kamran G239562 31.44
479 Martin Gonzalez, Angel239569 31.32
480 Grigorov, Jordan N239562 30.39
481 Fedder, Steen239561 32.88
482 Lanc, Alois239554 36.20
483 Hjorth, Greg239571 20.79
484 Segal, Alexandru Sorin239467 36.57
485 Welin, Thomas239373 24.65
486 Rakic, Tomislav239358 49.47
487 Van Riemsdijk, Herman C239265 35.68
488 Velez, Nestor239264 27.98
489 Cramling, Dan239260 25.23
490 Honfi, Karoly239265 53.51
491 Filipowicz, Andrzej239167 45.96
492 Sibarevic, Milenko239173 39.13
493 Whitehead, Jay E238963 22.55
494 Pedersen, Erik238956 25.64
495 Ochoa de Echaguen, F Javier238960 29.65
496 King, Daniel J238860 20.67
497 Karolyi, Tibor Jr238856 22.46
498 Hodgson, Julian M238859 20.76
499 Dlugy, Maxim238858 18.25
500 McNab, Colin Anderson238763 23.24

These ratings, calculated as of April 30, 1984, incorporate all games (against rated opponents) played in the time between May 1, 1983 and April 30, 1984, along with the ratings that were already calculated as of April 30, 1983. 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, 1984. This represents the player's estimated strength on May 1, 1984.

+/- 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, 1984. The +/- value represents the standard deviation of that estimate; the player's true strength on May 1, 1984 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, 1984. 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, 1984. 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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