< February 28, 1983     Back to date list    April 30, 1983 >

Top 10 active players as of March 31, 1983


Top 500 active players as of March 31, 1983

  #  

Player Rating +/- Best? 75%? Age
1 Kasparov, Garry K28015052.9% #319.96
2 Karpov, Anatoly E27764927.0% #431.86
3 Tal, Mikhail2706482.5% #1946.39
4 Korchnoi, Viktor L2704492.3% #2052.02
5 Andersson, Ulf2697471.6% #2231.76
6 Spassky, Boris V2693491.5% #2446.17
7 Beliavsky, Alexander G2691501.4% #2629.29
8 Ljubojevic, Ljubomir2688501.2% #2732.41
9 Portisch, Lajos2683490.9% #2945.98
10 Romanishin, Oleg M2681500.9% #3031.22
11 Vaganian, Rafael A2681500.8% #3131.46
12 Petrosian, Tigran V2675500.7% #3453.79
13 Polugaevsky, Lev A2674510.7% #3448.36
14 Ribli, Zoltán2674490.5% #3431.57
15 Timman, Jan H2671480.4% #3531.30
16 Smyslov, Vassily V2667510.6% #3962.02
17 Gulko, Boris F2666560.7% #4036.14
18 Dolmatov, Sergey V2666510.5% #3924.11
19 Hübner, Robert2659490.3% #4234.40
20 Hort, Vlastimil2656480.2% #4439.22
21 Tseshkovsky, Vitaly V2649500.2% #5038.52
22 Chernin, Alexander M2644610.4% #5923.07
23 Psakhis, Lev B2643500.1% #5424.34
24 Bronstein, David I2632570.2% #6759.12
25 Jussupow, Artur M263050 #6323.13
26 Geller, Efim P2628500.1% #6758.08
27 Sosonko, Gennadi262650 #6839.87
28 Tukmakov, Vladimir B2625530.1% #6937.04
29 Dorfman, Iosif D262454 #7230.91
30 Seirawan, Yasser261949 #7223.02
31 Agzamov, Georgy T261653 #7828.57
32 Kuzmin, Gennady P261552 #7937.20
33 Balashov, Yury S261451 #7934.05
34 Miles, Anthony J261349 #7827.93
35 Lputian, Smbat G261151 #8225.13
36 Kupreichik, Viktor D261052 #8233.74
37 Vaisser, Anatoli261055 #8534.07
38 Sax, Gyula261050 #8231.79
39 Ftácnik, Lubomír260749 #8425.42
40 Makarichev, Sergey Y260756 #8929.37
41 Lerner, Konstantin Z2606610.1% #9233.09
42 Mikhalchishin, Adrian B260655 #8928.37
43 Nunn, John D M260549 #8627.93
44 Ivanov, Igor V260456 #9136.23
45 Kholmov, Ratmir D2603740.3% #10457.88
46 Rashkovsky, Nukhim N260355 #9136.95
47 Browne, Walter S260149 #9034.22
48 Kavalek, Lubomir259850 #9439.64
49 Gipslis, Aivars259558 #10346.15
50 Razuvaev, Yury S259451 #9837.47
51 Larsen, Bent259449 #9848.07
52 Averbakh, Yury L2592690.1% #11261.15
53 Smejkal, Jan259250 #9937.02
54 Alburt, Lev O259255 #10337.61
55 Suba, Mihai259150 #10035.83
56 Gorelov, Sergey G259056 #10525.62
57 Parma, Bruno2587640.1% #11441.25
58 Taimanov, Mark E258660 #11257.15
59 Panchenko, Alexander N258654 #10729.49
60 Kovacevic, Vladimir258552 #10841.01
61 Palatnik, Semen A2584690.1% #12133.01
62 Tarjan, James E258358 #11431.11
63 Christiansen, Larry M258150 #10926.76
64 Dzindzichashvili, Roman Y258060 #11738.90
65 Kochiev, Alexander257760 #12127.02
66 Murey, Yakov257753 #11741.66
67 Didishko, Vereslav257659 #12133.97
68 Sveshnikov, Evgeny E257352 #11933.14
69 Vitolinš, Alvis257362 #12736.79
70 Azmaiparashvili, Zurab A257360 #12523.04
71 Torre, Eugenio257351 #11931.41
72 Vyzmanavin, Alexey257365 #12823.25
73 Zaichik, Gennady L257258 #12526.14
74 Yudasin, Leonid G257152 #12123.65
75 Gheorghiu, Florin257150 #12038.98
76 Dvoiris, Semen I257064 #13024.41
77 Gavrikov, Victor N256957 #12825.67
78 Panno, Oscar R256957 #12748.04
79 Vasiukov, Evgeny A256854 #12550.07
80 Veingold, Aleksander256861 #13129.47
81 Kremenetsky, Anatoly M256763 #13244.21
82 Ehlvest, Jaan256762 #13220.46
83 Kurajica, Bojan256550 #12635.38
84 Averkin, Orest N256565 #13539.10
85 Speelman, Jonathan S256550 #12526.50
86 Vorotnikov, Vladislav V256570 #13935.62
87 Anikaev, Yury256455 #13034.76
88 Adorján, András256451 #12832.99
89 Chekhov, Valery A256453 #12927.34
90 Nikolic, Predrag256351 #12922.55
91 Gufeld, Eduard E255854 #13547.03
92 Timoshchenko, Gennady255859 #13933.92
93 Savon, Vladimir A255855 #13642.51
94 Georgadze, Tamaz V255457 #14135.39
95 Bagirov, Vladimir K255452 #13846.62
96 Evans, Larry M2554750.1% #15251.02
97 Uhlmann, Wolfgang255349 #13748.01
98 Byrne, Robert E255259 #14454.94
99 Petrosian, Arshak B255053 #14229.29
100 Nemet, Ivan254969 #15439.96
101 Gligoric, Svetozar254851 60.16
102 Velimirovic, Dragoljub254852 40.88
103 Kharitonov, Andrey Y254759 23.98
104 Mokrý, Karel254758 24.15
105 Matulovic, Milan254555 47.81
106 Liberzon, Vladimir M254559 46.02
107 Lombardy, William J254569 45.32
108 Magerramov, Elmar S254473 24.97
109 Knaak, Rainer F254449 30.04
110 Shamkovich, Leonid A254452 59.83
111 Pintér, József254451 29.39
112 Abramovic, Boško254251 32.13
113 Sturua, Zurab254161 23.81
114 Vogt, Lothar H253849 31.20
115 van der Wiel, John T H253850 23.64
116 Nikolic, Zivoslav253856 29.30
117 Hulak, Krunoslav253653 31.85
118 Ivanovic, Božidar253650 36.60
119 Chandler, Murray G253549 22.98
120 Simic, Radoslav253456 34.81
121 Stean, Michael F253453 29.57
122 Keene, Raymond253253
123 Eolian, Levon S253263 23.54
124 Gurgenidze, Bukhuti I253259 49.38
125 Řgaard, Leif253258 31.24
126 Karlsson, Lars253150 27.72
127 Sokolov, Andrey Y253164 20.03
128 Ivkov, Borislav253051 49.38
129 Salov, Valery B253067 18.85
130 Shneider, Aleksandr252958 20.86
131 Pfleger, Helmut252858 39.65
132 Thipsay, Praveen Mahadeo252861 23.63
133 Csom, István252651 42.83
134 Lukin, Andrei M252660 34.59
135 Reshevsky, Samuel H252660 71.35
136 Grigorian, Karen A252560 35.57
137 Quinteros, Miguel A252452 35.26
138 Vladimirov, Evgeny Y252360 26.20
139 Osnos, Viacheslav V252263 47.69
140 Bukic, Enver252260 45.33
141 Faragó, Iván252249 36.99
142 Ree, Hans252251 38.54
143 Najdorf, Miguel252255 72.95
144 Pachmann, Ludek252273 58.89
145 Yermolinsky, Alex V252056 24.96
146 Kengis, Edvins251861 23.96
147 Olafsson, Fridrik251858 48.18
148 Vukic, Milan251759 39.62
149 Suetin, Alexey S251754 56.37
150 Lein, Anatoly251752 52.01
151 Unzicker, Wolfgang251553 57.76
152 Lobron, Eric251550 22.90
153 Tseitlin, Mikhail S251453 35.79
154 Ubilava, Elizbar E251359 32.59
155 Jansa, Vlastimil251249 40.34
156 Ivanov, Alexander V251271 26.91
157 Barua, Dibyendu251274 16.43
158 Cámpora, Daniel H251156 25.75
159 Mestel, A Jonathan251050 26.05
160 Andrianov, Nikolai251059 21.28
161 Calvo Minguez, Ricardo250971 39.44
162 García Gonzáles, Guillermo250952 29.31
163 Matanovic, Aleksandar250963 52.86
164 Popovic, Petar250852 24.13
165 Lechtynsky, Jiri250853 35.35
166 Meduna, Eduard250850 32.55
167 Tringov, Georgy P250753 46.07
168 Bilek, István250663 50.64
169 Lutikov, Anatoly S250470 50.15
170 Klovans, Janis250466 47.97
171 Marovic, Dražen250265 45.21
172 Malich, Burkhard G250257 46.34
173 Georgiev, Krum250052 24.85
174 Karner, Hillar249962 47.68
175 Knezevic, Milorad249952 46.42
176 Cebalo, Mišo249853 38.15
177 Schmidt, Wlodzimierz249850 39.97
178 Jamieson, Robert Murray249866
179 Mnatsakanian, Eduard A249861 44.32
180 Wedberg, Tom249751 29.35
181 Szabó, László249668 66.03
182 Radulov, Ivan249650 44.23
183 Kogan, Boris249564
184 Lukacs, Peter249452 32.73
185 Strauss, David J249365 36.65
186 deFirmian, Nicholas E249354 25.68
187 Djuric, Stefan249159 27.68
188 Stoica, Valentin249059 33.13
189 Chiburdanidze, Maia G249055 22.20
190 Mortensen, Erling248952 27.98
191 Groszpeter, Attila248952 22.81
192 Biyiasas, Peter248965 32.37
193 Franco Ocampos, Zenon248758 26.88
194 Plachetka, Jan248650 38.12
195 Peters, John A248661 32.14
196 Díez del Corral, Jesús248659 49.98
197 Inkiov, Ventzislav248551 26.87
198 Grefe, John A248473 35.57
199 Soltis, Andrew E248474 35.84
200 Gruenberg, Hans Ulrich248357 27.23
201 Velikov, Petar248250 32.00
202 Szekely, Peter248252 28.15
203 Birnboim, Nathan248257 32.34
204 Oll, Lembit248262 16.93
205 Smagin, Sergey248269 24.56
206 Henley, Ron W248155 26.32
207 Marjanovic, Slavoljub248152 28.23
208 Pigusov, Evgeny248064 21.99
209 Mednis, Edmar J248068 46.02
210 McKay, Roderick M248073 31.14
211 Rajkovic, Dusan247953 40.79
212 Nei, Iivo247861 51.42
213 Benko, Pal C247758 54.71
214 Espig, Lutz247751 34.24
215 Kalinitschew, Sergey247774 27.16
216 Cherepkov, Alexander V247776 62.42
217 Tatai, Stefano247754 45.02
218 Pribyl, Josef247652 35.47
219 Rogulj, Branko247662 31.66
220 Ostermeyer, Peter247660 39.47
221 Sigurjónsson, Gudmundur247553 35.52
222 Sygulski, Artur247557 22.69
223 Sahovic, Dragutin247457 42.65
224 Jelen, Iztok247472 36.20
225 Ermenkov, Evgenij247451 33.51
226 Pytel, Krzysztof247457 37.88
227 Buturin, Vladimir247373 39.37
228 Antoshin, Vladimir S247262 53.88
229 Bjelajac, Milan247162 35.05
230 Popov, Luben247154 47.18
231 Regan, Kenneth247176 23.55
232 Bönsch, Uwe247150 24.46
233 Todorcevic, Miodrag247163 42.39
234 Gruenfeld, Yehuda247053 27.09
235 Zaltsman, Vitaly F247062 41.43
236 Rodriguez, Amador246952 26.56
237 Vera, Reynaldo246953 22.23
238 Hazai, Laszlo246853 29.80
239 Schneider, Lars Ake246754
240 Kudrin, Sergey246758 23.57
241 Portisch, Ferenc246757 43.97
242 Ligterink, Gert246754 33.37
243 Gurevich, Dmitry246752 26.55
244 Hug, Werner246664 30.56
245 Duer, Arne246566 23.72
246 Podzielny, Karl Heinz246566 28.56
247 Adamski, Jan246452 39.39
248 Bisguier, Arthur B246471 53.48
249 Mariotti, Sergio246457 36.64
250 Kraidman, Yair246367 50.41
251 Van Wijgerden, Cornelis246360 32.86
252 Zaitsev, Igor A246355 44.84
253 Klaric, Zlatko246358 26.44
254 Spassov, Liuben246251 40.02
255 Hartston, William R246262 35.63
256 Forintos, Gyözö V246258 47.67
257 Dely, Peter246170 48.74
258 Sznapik, Aleksander246150 32.14
259 Enklaar, Bertus F246172
260 Helmers, Knut J246154 26.15
261 Bouaziz, Slim246057 32.95
262 Schussler, Harry246051 25.77
263 Sunye Neto, Jaime246054 25.91
264 Barczay, Laszlo246054 47.11
265 Bastian, Herbert245966 30.31
266 Robatsch, Karl245856 54.46
267 Ciocaltea, Victor245754 51.21
268 Bischoff, Klaus245657 21.81
269 Gutman, Lev245659 37.51
270 Martz, William E245666
271 Ghinda, Mihail Viorel245556 33.68
272 Padevsky, Nikola B245563 49.84
273 Hansen, Curt245454 18.54
274 Van der Sterren, Paul245453 27.04
275 Prandstetter, Eduard245452 34.29
276 Bradford, Joseph M245470 32.41
277 Kindermann, Stefan245354 23.26
278 Spiridonov, Nikola245352 45.09
279 Zapata, Alonso245354 24.61
280 Hebden, Mark245354 25.13
281 Rodriguez, Ruben245357 36.32
282 Nogueiras, Jesus245354 23.70
283 Hecht, Hans-Joachim245362 44.17
284 Garcia Palermo, Carlos245256 29.33
285 Sharif, Mershad245266 30.72
286 Vokác, Marek245162 24.32
287 Sydor, Andrzej245165 46.24
288 Mochalov, Evgeny V245161 31.42
289 Wittmann, Walter244962 35.05
290 Luczak, Andrzej244961 34.32
291 Castro Rojas, Oscar Humberto244973 29.90
292 Wirthensohn, Heinz244856 31.91
293 Arnason, Jon L244852 22.38
294 Tisdall, Jonathan D244757 24.60
295 Kirov Ivanov, Nino244752 37.56
296 Rukavina, Josip244764 40.34
297 Taulbut, Shaun M244659 25.22
298 Minic, Dragoljub244673 46.07
299 Ardiansyah, Haji244659 31.32
300 Toth, Bela244556 39.94
301 Skembris, Spyridon244455 25.11
302 Gurevich, Mikhail N244467 24.11
303 Pekarek, Ales244464 21.29
304 Dobrovolsky, Ladislav244354 32.27
305 Hamann, Svend244365 42.48
306 Govedarica, Radovan244364 35.13
307 Vadasz, Laszlo244362 35.18
308 Wolf, Volker244269 25.57
309 Short, Nigel D244250 17.83
310 Martinovic, Slobodan244154 37.68
311 Szmetan, Jorge244060 32.85
312 Schweber, Samuel244061 46.71
313 Hebert, Jean244060 25.39
314 Szymczak, Zbigniew244056 31.24
315 Donchev, Dimitar I243857 24.69
316 Ornstein, Axel243853 30.93
317 Fedorowicz, John P243758 24.51
318 Seret, Jean Luc243768
319 Ambroz, Jan243752 28.79
320 Palacios, Antonio243763 30.38
321 Rubinetti, Jorge A243658 37.99
322 Jakobsen, Ole243555 40.45
323 Commons, Kim S243564 31.69
324 Tavadian, Ragik243572
325 Wockenfuss, Klaus243462 31.59
326 Pétursson, Margeir243357 23.13
327 Langeweg, Kick243255 46.07
328 Kaiszauri, Konstanty243163 30.43
329 Wilder, Michael243172 20.54
330 Nun, Jiri243158 25.68
331 Donner, Johannes H243158 55.73
332 Hermann, Manfred243167 40.58
333 Velickovic, Sasa243166 31.99
334 Soppe, Guillermo243172 22.54
335 Raicevic, Vladimir243060 33.91
336 Cvetkovic, Srdjan243059 37.09
337 Renman, Nils Gustaf243070
338 Ghitescu, Theodor243060 49.19
339 Littlewood, Paul E243056 27.20
340 Djukic, Zeljko242867 23.80
341 Antunac, Goran242875 37.95
342 Mestrovic, Zvonimir242774 38.45
343 McCambridge, Vincent242760 23.06
344 Agdestein, Simen242763 15.88
345 Rodriguez Vargas, Orestes242763 39.74
346 Trapl, Jindrich242663 41.02
347 Lakic, Nikola242671 35.71
348 Reefschlaeger, Helmut242660 38.97
349 Bellin, Robert242658 30.75
350 Bronstein, Luis242565 36.83
351 Rivas Pastor, Manuel242452 22.72
352 Flear, Glenn C242467 24.13
353 Stohl, Igor242462 18.51
354 Gomez Baillo, Jorge H242472 23.94
355 Hernandez, Roman242455 33.36
356 Lanka, Zigurds242471 22.86
357 Hase, Juan Carlos242360
358 Doda, Zbigniew242269 52.11
359 Zichichi, Alvise242265 44.74
360 Lengyel, Levente242261 49.80
361 Hennings, Artur242269 42.72
362 Neckar, Lubomir242159 32.66
363 Feustel, Bernd242159 28.53
364 Lau, Ralf242173 23.45
365 Barlov, Dragan242153 26.17
366 Bohm, Hans242055 33.21
367 Ostojic, Predrag242071 45.11
368 Fernandez Garcia, Jose Luis241860 28.91
369 Shirazi, Kamran G241872 30.36
370 Makropoulos, Georgios241760 29.51
371 Watson, John L241767 31.57
372 Morovic Fernández, Iván E241765 20.02
373 Mascarinas, Rico241760 30.08
374 Augustin, Josef241771 40.87
375 Rantanen, Yrjo A241754 32.93
376 Cramling, Dan241758 24.15
377 Alexandria, Nana241762 33.47
378 Ost Hansen, Jacob241658
379 Despotovic, Momcilo241671 35.08
380 Fedder, Steen241661 31.80
381 Drasko, Milan241663 20.32
382 Greenfeld, Alon241567 18.95
383 Borm, Franciscus WM241562
384 Ravikumar, Vaidyanathan241561 23.26
385 Hausner, Ivan241555 30.95
386 Lukov, Valentin241462 27.30
387 Olafsson, Helgi241457 26.63
388 Scheeren, Peter241456 27.67
389 Diaz, Joaquin C241463 34.74
390 Morris, Walter D241369 24.58
391 Ochoa de Echaguen, F Javier241363 28.57
392 Arbakov, Valentin241372 31.18
393 Kristiansen, Jens241255 30.85
394 Bielczyk, Jacek241253 30.11
395 Haik, Aldo241156 30.45
396 Levitina, Irina S241165 28.81
397 Flesch, Janos241171 49.50
398 Westerinen, Heikki MJ241051 38.92
399 Ciric, Dragoljub M241074 47.38
400 Kelecevic, Nedeljko241056 36.05
401 Brinck Claussen, Bjorn240957
402 Kuligowski, Adam240952 27.27
403 Novikov, Igor A240973 20.86
404 Pritchett, Craig William240965
405 Frias, Victor J240956 27.14
406 Clemens, Christian240874 42.65
407 Plaskett, Jim240855 23.04
408 Lalev, Dimitar240862 23.21
409 Gulbrandsen, Arne Vinje240873
410 Davies, Nigel R240864 22.67
411 Braga, Fernando240760 24.73
412 Vilela, Jose Luis240752 30.03
413 Goehring, Karl Heinz240764
414 Zivanovic, Ivan240675 19.99
415 Tompa, Janos240671 35.92
416 Garcia Martinez, Silvino240655 38.74
417 Banas, Jan240556 35.83
418 Williams, Arthur Howard240474
419 Van Voorthuijsen, PW.240376
420 Herzog, Adolf240261 29.82
421 Tomaszewski, Roman240264 22.87
422 Kuijpers, Franciscus Antonius240274
423 Sideif Sade, Fikret I240268 31.25
424 Krnic, Zdenko240166 35.50
425 Kunsztowicz, Uwe240169 39.20
426 Kestler, Hans-Günter240061 43.30
427 Kuijf, Hans240071 20.89
428 Angantysson, Haukur240074 34.33
429 Handoko, Edhi240058 22.59
430 Benjamin, Joel L239959 19.05
431 Petran, Pal239863 36.54
432 Trikaliotis, Georgios239772 44.10
433 Kagan, Shimon239661 40.98
434 Nun, Josef239664 49.69
435 Pliester, Leon239562 28.61
436 Bajovic, Milan239559
437 Horvath, Tamas239558 31.44
438 Van Riemsdijk, Herman C239467 34.60
439 Grigorov, Jordan N239465 29.31
440 Gerusel, Mathias239472 45.15
441 Barle, Janez239468 31.03
442 Sisniega, Marcel239355 23.68
443 Damjanovic, Mato239258 56.02
444 Filipowicz, Andrzej239260 44.88
445 Peev, Peicho Chonev239165 42.99
446 Cifuentes Parada, Roberto239076 25.28
447 Van Baarle, C John239069 37.94
448 Tiller, Bjorn239062 24.21
449 Myagmarsuren, Lhamsuren239067 45.12
450 Hansson, Dan239075 30.81
451 Gross, Stefan238961 33.59
452 Nowak, Ignacy238862 34.22
453 Cabrilo, Goran238863 24.75
454 Nurkic, Sahbaz238774 27.05
455 Karkanaque, Ilir238773
456 Danner, Georg238755 36.43
457 Martin Gonzalez, Angel238661 30.24
458 Welin, Thomas238662 23.57
459 Casper, Thomas238656 24.04
460 Borik, Otto238556 35.52
461 Odendahl, Steven M238473 23.43
462 Santos, Jose P238467 24.47
463 Dizdar, Goran238458 24.32
464 McNab, Colin Anderson238462 22.16
465 Rakic, Tomislav238368 48.39
466 Segal, Alexandru Sorin238375 35.49
467 Monier, Raul238374 22.90
468 Schneider, Attila238261 27.96
469 Heinbuch, Detlef238264 22.23
470 Kuijf, Marinus238263 23.13
471 Gauglitz, Gernot238163 20.76
472 Moehring, Guenther238161 46.35
473 Burger, Karl238155 50.19
474 Filipovic, Branko238174 25.48
475 Sarwinski, Miroslaw238061 29.21
476 Akesson, Ralf238058 22.15
477 Nicevski, Risto238060 37.76
478 Stempin, Pawel238058 23.72
479 Tempone, Marcelo237960 20.57
480 Ernst, Thomas237963 22.62
481 Kuzmin, Alexey237970 20.06
482 Soos, Bela237968 53.07
483 Bellon Lopez, Juan Manuel237853 32.90
484 Pavlov, Mircea237859 45.55
485 Huss, Andreas237869 32.46
486 Zueger, Beat237861 21.83
487 Danailov, Silvio237771 21.94
488 Swic, Waldemar237762 30.06
489 Honfi, Karoly237763 52.43
490 Murray, J.237671
491 Gobet, Fernand237662 21.13
492 Gonsior, Evzen237668 51.32
493 Hartoch, Robert G237565
494 Partos, Charles237463 46.64
495 Skalkotas, Nikolaos237469 33.53
496 Herbrechtsmeier, Christof237464 29.26
497 Bohosjan, Sarkis237374 42.01
498 De Lange, Daan237369
499 Novopashin, Arkady237372
500 Schinzel, Wladyslaw237259 39.86

These ratings, calculated as of March 31, 1983, incorporate all games (against rated opponents) played in the time between April 1, 1982 and March 31, 1983, along with the ratings that were already calculated as of March 31, 1982. 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 March 31, 1983. This represents the player's estimated strength on April 1, 1983.

+/- 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 April 1, 1983. The +/- value represents the standard deviation of that estimate; the player's true strength on April 1, 1983 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 April 1, 1983. 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 March 31, 1983. 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.

Back to top

Home