< December 31, 1982     Back to date list    February 28, 1983 >

Top 10 active players as of January 31, 1983


Top 500 active players as of January 31, 1983

  #  

Player Rating +/- Best? 75%? Age
1 Kasparov, Garry K27845143.3% #419.80
2 Karpov, Anatoly E27714930.4% #531.69
3 Beliavsky, Alexander G2706503.8% #1929.12
4 Tal, Mikhail2703482.7% #2046.23
5 Korchnoi, Viktor L2696492.2% #2251.86
6 Andersson, Ulf2689471.5% #2431.59
7 Ljubojevic, Ljubomir2689491.6% #2532.24
8 Portisch, Lajos2686491.4% #2645.82
9 Spassky, Boris V2683491.2% #2846.00
10 Petrosian, Tigran V2678511.1% #3253.62
11 Romanishin, Oleg M2677491.1% #3131.06
12 Timman, Jan H2676480.8% #3131.13
13 Polugaevsky, Lev A2673500.9% #3348.20
14 Vaganian, Rafael A2673500.8% #3331.29
15 Gulko, Boris F2672551.2% #3535.97
16 Smyslov, Vassily V2667530.8% #3861.85
17 Psakhis, Lev B2662500.5% #3924.17
18 Dolmatov, Sergey V2661510.5% #4023.94
19 Hübner, Robert2660490.4% #4034.23
20 Ribli, Zoltán2657490.3% #4231.40
21 Hort, Vlastimil2654480.2% #4439.05
22 Chernin, Alexander M2642610.6% #6022.90
23 Tseshkovsky, Vitaly V2640490.1% #5438.35
24 Tukmakov, Vladimir B2637520.2% #5836.88
25 Bronstein, David I2632550.2% #6358.94
26 Geller, Efim P2628500.1% #6457.91
27 Dorfman, Iosif D2628530.1% #6630.75
28 Jussupow, Artur M2626500.1% #6522.96
29 Sosonko, Gennadi262349 #6739.70
30 Seirawan, Yasser262049 #7022.85
31 Balashov, Yury S261751 #7333.88
32 Lputian, Smbat G2615520.1% #7624.96
33 Kovacevic, Vladimir261253 #8040.85
34 Agzamov, Georgy T260853 #8428.40
35 Kuzmin, Gennady P260552 #8637.03
36 Kholmov, Ratmir D2604730.5% #10057.72
37 Larsen, Bent260449 #8547.91
38 Kavalek, Lubomir260350 #8639.48
39 Nunn, John D M260249 #8627.77
40 Miles, Anthony J260249 #8627.77
41 Rashkovsky, Nukhim N2602540.1% #9036.79
42 Lerner, Konstantin Z2602600.1% #9432.92
43 Browne, Walter S260149 #8734.06
44 Alburt, Lev O260154 #9237.44
45 Makarichev, Sergey Y259854 #9429.20
46 Ftácnik, Lubomír259749 #9125.25
47 Azmaiparashvili, Zurab A2596610.1% #9922.87
48 Averbakh, Yury L2595630.1% #10360.97
49 Razuvaev, Yury S259451 #9637.31
50 Sax, Gyula259350 #9531.62
51 Gipslis, Aivars259257 #10145.97
52 Mikhalchishin, Adrian B259255 #10028.20
53 Veingold, Aleksander2591680.1% #11129.31
54 Kupreichik, Viktor D259151 #9933.58
55 Taimanov, Mark E258859 #10656.98
56 Gorelov, Sergey G258856 #10525.45
57 Vaisser, Anatoli258757 #10733.90
58 Palatnik, Semen A2586670.1% #11532.85
59 Kochiev, Alexander258559 #11026.85
60 Yudasin, Leonid G258353 #10723.48
61 Parma, Bruno258362 #11441.09
62 Smejkal, Jan258150 #10936.86
63 Ivanov, Igor V258156 #11236.06
64 Christiansen, Larry M258049 #10826.59
65 Gufeld, Eduard E257955 #11346.87
66 Dzindzichashvili, Roman Y257859 #11738.74
67 Panchenko, Alexander N257853 #11329.32
68 Tarjan, James E257658 #11830.94
69 Gheorghiu, Florin257449 #11538.82
70 Sveshnikov, Evgeny E257252 #11732.96
71 Murey, Yakov257153 #11941.49
72 Suba, Mihai257152 #11935.66
73 Nikolic, Predrag256951 #12022.39
74 Didishko, Vereslav256859 #12633.81
75 Kurajica, Bojan256750 #12235.21
76 Anikaev, Yury256755 #12534.59
77 Vyzmanavin, Alexey256666 #13323.08
78 Savon, Vladimir A256654 #12542.35
79 Vasiukov, Evgeny A256453 #12749.90
80 Dvoiris, Semen I256263 #13524.24
81 Speelman, Jonathan S256250 #12726.33
82 Kremenetsky, Anatoly M256260 #13344.05
83 Vitolinš, Alvis256162 #13536.63
84 Chekhov, Valery A256153 #13127.18
85 Torre, Eugenio256050 #12931.24
86 Mokrý, Karel255861 #13823.98
87 Evans, Larry M2557750.1% #14850.86
88 Simic, Radoslav255456 #13834.64
89 Adorján, András255451 #13432.83
90 Gligoric, Svetozar255352 #13659.99
91 Timoshchenko, Gennady255359 #14133.76
92 Zaichik, Gennady L255258 #14325.96
93 Averkin, Orest N255264 #14638.93
94 Pintér, József255152 #13929.23
95 Velimirovic, Dragoljub255152 #13940.72
96 Gavrikov, Victor N255055 #14125.51
97 Georgadze, Tamaz V255055 #14135.23
98 Bagirov, Vladimir K255052 #13946.46
99 Vorotnikov, Vladislav V254970 #15135.45
100 Najdorf, Miguel254855 #14372.79
101 Knaak, Rainer F254850 29.87
102 Petrosian, Arshak B254853 29.12
103 Stean, Michael F254752 29.41
104 Panno, Oscar R254657 47.87
105 Byrne, Robert E254657 54.78
106 Lombardy, William J254668 45.16
107 Ivkov, Borislav254151 49.22
108 Ivanovic, Božidar254151 36.44
109 Uhlmann, Wolfgang253949 47.84
110 Vogt, Lothar H253849 31.04
111 van der Wiel, John T H253849 23.48
112 Nikolic, Zivoslav253756 29.13
113 Sturua, Zurab253760 23.65
114 Nei, Iivo253668 51.25
115 Řgaard, Leif253658 31.07
116 Shneider, Aleksandr253659 20.69
117 Gurgenidze, Bukhuti I253359 49.22
118 Chandler, Murray G253349 22.82
119 Pachmann, Ludek253372 58.72
120 Matulovic, Milan253355 47.64
121 Csom, István253250 42.66
122 Keene, Raymond253252
123 Lobron, Eric253251 22.73
124 Liberzon, Vladimir M252957 45.86
125 Thipsay, Praveen Mahadeo252861 23.47
126 Magerramov, Elmar S252868 24.81
127 Hulak, Krunoslav252852 31.68
128 Nemet, Ivan252771 39.80
129 Grigorian, Karen A252659 35.40
130 Reshevsky, Samuel H252559 71.18
131 Eolian, Levon S252463 23.37
132 Pfleger, Helmut252457 39.48
133 Kharitonov, Andrey Y252360 23.82
134 Lukin, Andrei M252360 34.42
135 Osnos, Viacheslav V252363 47.52
136 Quinteros, Miguel A252251 35.09
137 Lein, Anatoly252152 51.84
138 Shamkovich, Leonid A252152 59.66
139 Faragó, Iván252149 36.83
140 Andrianov, Nikolai252157 21.11
141 Salov, Valery B252168 18.68
142 Bukic, Enver252160 45.16
143 Olafsson, Fridrik252156 48.01
144 Ree, Hans252050 38.38
145 Vladimirov, Evgeny Y251960 26.03
146 Suetin, Alexey S251953 56.21
147 Cebalo, Mišo251853 37.98
148 Karlsson, Lars251750 27.55
149 Abramovic, Boško251551 31.96
150 Calvo Minguez, Ricardo251471 39.27
151 Cámpora, Daniel H251358 25.59
152 Mestel, A Jonathan251350 25.88
153 García Gonzáles, Guillermo251153 29.14
154 Jamieson, Robert Murray251166
155 Tseitlin, Mikhail S251053 35.62
156 Vukic, Milan251059 39.45
157 Barua, Dibyendu251074 16.26
158 Unzicker, Wolfgang251053 57.60
159 Yermolinsky, Alex V250956 24.80
160 Karner, Hillar250971 47.51
161 Lutikov, Anatoly S250863 49.98
162 Popovic, Petar250751 23.96
163 Ubilava, Elizbar E250759 32.43
164 Ivanov, Alexander V250669 26.75
165 Sokolov, Andrey Y250660 19.86
166 Szabó, László250568 65.87
167 Bilek, István250363 50.47
168 Marovic, Dražen250261 45.05
169 Benko, Pal C250160 54.54
170 Matanovic, Aleksandar250157 52.69
171 Meduna, Eduard249949 32.39
172 Tringov, Georgy P249954 45.90
173 Klovans, Janis249965 47.81
174 Knezevic, Milorad249752 46.25
175 Wedberg, Tom249752 29.18
176 Kengis, Edvins249662 23.80
177 Todorcevic, Miodrag249565 42.22
178 Georgiev, Krum249552 24.69
179 Plachetka, Jan249550 37.95
180 Lechtynsky, Jiri249453 35.18
181 Biyiasas, Peter249465 32.20
182 Radulov, Ivan249349 44.06
183 Espig, Lutz249251 34.07
184 Malich, Burkhard G249256 46.17
185 deFirmian, Nicholas E249154 25.51
186 Strauss, David J249065 36.48
187 Díez del Corral, Jesús249062 49.82
188 Mortensen, Erling249053 27.82
189 Stoica, Valentin248958 32.95
190 Mnatsakanian, Eduard A248860 44.15
191 Sigurjónsson, Gudmundur248853 35.35
192 Inkiov, Ventzislav248850 26.70
193 Lukacs, Peter248752 32.56
194 Rogulj, Branko248663 31.50
195 Bischoff, Klaus248658 21.64
196 Franco Ocampos, Zenon248557 26.72
197 Kogan, Boris248562
198 Groszpeter, Attila248453 22.64
199 Sygulski, Artur248460 22.52
200 Velikov, Petar248350 31.84
201 Jansa, Vlastimil248349 40.18
202 Regan, Kenneth248375 23.38
203 Ermenkov, Evgenij248351 33.34
204 Bjelajac, Milan248260 34.88
205 Henley, Ron W248253 26.15
206 Soltis, Andrew E248274 35.67
207 Bönsch, Uwe248251 24.29
208 Zaltsman, Vitaly F248159 41.26
209 Kalinitschew, Sergey248165 26.99
210 Petrushin, Alexander I248176 35.89
211 Peters, John A248161 31.97
212 Birnboim, Nathan248056 32.18
213 Pigusov, Evgeny248064 21.83
214 Spassov, Liuben248050 39.86
215 Marjanovic, Slavoljub248052 28.07
216 Grefe, John A247972 35.40
217 Schneider, Lars Ake247953
218 Djuric, Stefan247757 27.51
219 Gurevich, Dmitry247653 26.39
220 Podzielny, Karl Heinz247666 28.39
221 Szekely, Peter247553 27.97
222 Ostermeyer, Peter247560 39.30
223 Schmidt, Wlodzimierz247451 39.81
224 Pytel, Krzysztof247457 37.71
225 Sahovic, Dragutin247356 42.48
226 Bisguier, Arthur B247371 53.31
227 Mariotti, Sergio247355 36.47
228 Hazai, Laszlo247353 29.63
229 Vera, Reynaldo247255 22.06
230 Kudrin, Sergey247258 23.40
231 Chiburdanidze, Maia G247256 22.04
232 Pribyl, Josef247151 35.30
233 Buturin, Vladimir247173 39.20
234 Rodriguez, Amador247152 26.40
235 Jelen, Iztok247073 36.03
236 Hug, Werner246864 30.39
237 Popov, Luben246853 47.01
238 Duer, Arne246866 23.56
239 Vokác, Marek246862 24.15
240 Gurevich, Mikhail N246769 23.94
241 Van Wijgerden, Cornelis246760 32.69
242 Ligterink, Gert246653 33.20
243 McKay, Roderick M246673 30.96
244 Antoshin, Vladimir S246559 53.71
245 Kraidman, Yair246566 50.25
246 Mednis, Edmar J246463 45.86
247 Helmers, Knut J246454 25.98
248 Bouaziz, Slim246456 32.79
249 Rajkovic, Dusan246453 40.62
250 Short, Nigel D246451 17.66
251 Portisch, Ferenc246456 43.81
252 Zaitsev, Igor A246454 44.68
253 Mochalov, Evgeny V246361 31.26
254 Tatai, Stefano246354 44.86
255 Ciocaltea, Victor246353 51.04
256 Klaric, Zlatko246357 26.27
257 Barczay, Laszlo246253 46.94
258 Dely, Peter246070 48.57
259 Sznapik, Aleksander246051 31.97
260 Nogueiras, Jesus245954 23.54
261 Schussler, Harry245852 25.60
262 Sharif, Mershad245866 30.55
263 Hartston, William R245861 35.47
264 Donchev, Dimitar I245756 24.53
265 Lederman, Leon245676 35.68
266 Hermann, Manfred245668 40.42
267 Martinovic, Slobodan245653 37.52
268 Rodriguez, Ruben245657 36.15
269 Adamski, Jan245653 39.22
270 Zapata, Alonso245657 24.44
271 Ornstein, Axel245554 30.77
272 Wittmann, Walter245562 34.88
273 Ardiansyah, Haji245556 31.15
274 Smagin, Sergey245563 24.40
275 Kirov Ivanov, Nino245451 37.39
276 Martz, William E245466
277 Bradford, Joseph M245470 32.25
278 Robatsch, Karl245354 54.30
279 Enklaar, Bertus F245372
280 Ghinda, Mihail Viorel245355 33.52
281 Sydor, Andrzej245365 46.08
282 Spiridonov, Nikola245252 44.92
283 Forintos, Gyözö V245157 47.50
284 Sunye Neto, Jaime245153 25.74
285 Raicevic, Vladimir245059 33.74
286 Gruenfeld, Yehuda245053 26.92
287 Hecht, Hans-Joachim244961 44.01
288 Van der Sterren, Paul244953 26.87
289 Tisdall, Jonathan D244957 24.43
290 Gutman, Lev244957 37.35
291 Feustel, Bernd244958 28.36
292 McCambridge, Vincent244860 22.90
293 Luczak, Andrzej244761 34.15
294 Szmetan, Jorge244773 32.68
295 Rukavina, Josip244764 40.17
296 Pétursson, Margeir244755 22.95
297 Hebden, Mark244653 24.95
298 Seret, Jean Luc244665
299 Hansen, Curt244654 18.37
300 Govedarica, Radovan244665 34.96
301 Prandstetter, Eduard244652 34.13
302 Dobrovolsky, Ladislav244555 32.10
303 Wirthensohn, Heinz244456 31.74
304 Renman, Nils Gustaf244270
305 Wolf, Volker244269 25.40
306 Bastian, Herbert244266 30.14
307 Vooremaa, Andres244169 38.53
308 Padevsky, Nikola B244160 49.67
309 Hamann, Svend244165 42.31
310 Gruenberg, Hans Ulrich244159 27.06
311 Lau, Ralf244170 23.28
312 Wockenfuss, Klaus244061 31.42
313 Bajovic, Milan244058
314 Garcia Palermo, Carlos244057 29.16
315 Taulbut, Shaun M243959 25.05
316 Littlewood, Paul E243957 27.04
317 Hernandez, Roman243857 33.19
318 Commons, Kim S243863 31.52
319 Scheeren, Peter243756 27.50
320 Arnason, Jon L243653 22.22
321 Lakic, Nikola243672 35.54
322 Jakobsen, Ole243655 40.28
323 Djukic, Zeljko243668 23.63
324 Castro Rojas, Oscar Humberto243570 29.73
325 Antunac, Goran243575 37.79
326 Bellin, Robert243459 30.59
327 Pekarek, Ales243363 21.12
328 Kuzmin, Alexey243164 19.90
329 Vadasz, Laszlo243160 35.01
330 Velickovic, Sasa243163 31.83
331 Mestrovic, Zvonimir243173 38.29
332 Plaskett, Jim243156 22.87
333 Ostojic, Predrag243171 44.94
334 Fedorowicz, John P243158 24.34
335 Kristiansen, Jens242955 30.68
336 Brinck Claussen, Bjorn242956
337 Rubinetti, Jorge A242858 37.83
338 Agdestein, Simen242863 15.71
339 Alexandria, Nana242863 33.30
340 Tavadian, Ragik242872
341 Frias, Victor J242860 26.97
342 Ambroz, Jan242852 28.62
343 Skembris, Spyridon242855 24.94
344 Lengyel, Levente242759 49.63
345 Rodriguez Vargas, Orestes242757 39.57
346 Shirazi, Kamran G242772 30.19
347 Lanka, Zigurds242673 22.69
348 Ost Hansen, Jacob242458
349 Uusi, Gunnar242471
350 Kaiszauri, Konstanty242360 30.27
351 Toth, Bela242357 39.78
352 Szymczak, Zbigniew242257 31.07
353 Hebert, Jean242260 25.22
354 Donner, Johannes H242257 55.57
355 Makropoulos, Georgios242259 29.34
356 Bohm, Hans242155 33.04
357 Nun, Jiri242160 25.51
358 Watson, John L242168 31.40
359 Haik, Aldo242057 30.28
360 Minic, Dragoljub242065 45.90
361 Ghitescu, Theodor242059 49.02
362 Cramling, Dan242057 23.98
363 Kindermann, Stefan242055 23.09
364 Langeweg, Kick241954 45.90
365 Flear, Glenn C241967 23.96
366 Barlov, Dragan241953 26.00
367 Zichichi, Alvise241859 44.57
368 Despotovic, Momcilo241771 34.91
369 Augustin, Josef241770 40.70
370 Kunsztowicz, Uwe241765 39.04
371 Reefschlaeger, Helmut241761 38.81
372 Cvetkovic, Srdjan241659 36.92
373 Vilela, Jose Luis241653 29.87
374 Garcia Martinez, Silvino241657 38.57
375 Tompa, Janos241573 35.75
376 Fedder, Steen241563 31.63
377 Mascarinas, Rico241560 29.91
378 Rantanen, Yrjo A241555 32.77
379 Borm, Franciscus WM241462
380 Kagan, Shimon241460 40.82
381 Ravikumar, Vaidyanathan241461 23.10
382 Hennings, Artur241469 42.55
383 Neckar, Lubomir241359 32.49
384 Zivanovic, Ivan241375 19.83
385 Gerusel, Mathias241371 44.98
386 Morovic Fernández, Iván E241265 19.85
387 Trapl, Jindrich241164 40.85
388 Flesch, Janos241170 49.34
389 Morris, Walter D241169 24.41
390 Lalev, Dimitar241162 23.04
391 Sideif Sade, Fikret I241067 31.08
392 Lukov, Valentin241058 27.14
393 Hase, Juan Carlos240969
394 Ciric, Dragoljub M240974 47.22
395 Kuligowski, Adam240952 27.10
396 Braga, Fernando240957 24.56
397 Gulbrandsen, Arne Vinje240973
398 Petran, Pal240862 36.38
399 Krnic, Zdenko240865 35.33
400 Diaz, Joaquin C240863 34.57
401 Davies, Nigel R240764 22.50
402 Kestler, Hans-Günter240761 43.13
403 Arbakov, Valentin240772 31.01
404 Kuijf, Hans240771 20.72
405 Olafsson, Helgi240756 26.46
406 Westerinen, Heikki MJ240751 38.76
407 Rivas Pastor, Manuel240654 22.55
408 Fernandez Garcia, Jose Luis240563 28.74
409 Kuijpers, Franciscus Antonius240573
410 Van Voorthuijsen, PW.240576
411 Handoko, Edhi240455 22.42
412 Pliester, Leon240263 28.45
413 Williams, Arthur Howard240274
414 Hausner, Ivan240154 30.79
415 Pritchett, Craig William240166
416 Benjamin, Joel L240059 18.89
417 Bielczyk, Jacek239954 29.93
418 Clemens, Christian239974 42.49
419 Horvath, Tamas239856 31.27
420 Borik, Otto239855 35.35
421 Angantysson, Haukur239865 34.16
422 Goehring, Karl Heinz239763
423 Palacios, Antonio239663 30.22
424 Herzog, Adolf239261 29.65
425 Damjanovic, Mato239258 55.86
426 Burger, Karl239254 50.02
427 Bronstein, Luis239169 36.66
428 Greenfeld, Alon239163 18.79
429 Banas, Jan239157 35.66
430 Hartoch, Robert G239165
431 Zueger, Beat239062 21.66
432 Schneider, Attila239060 27.80
433 Martin Gonzalez, Angel238964 30.08
434 Budde, Vladimir238966 30.10
435 Garcia, Gildardo238964 28.89
436 Peev, Peicho Chonev238965 42.83
437 Santos, Jose P238968 24.30
438 Myagmarsuren, Lhamsuren238967 44.95
439 Gruen, Peter238867 26.05
440 McNab, Colin Anderson238861 21.99
441 Cifuentes Parada, Roberto238776 25.11
442 Odendahl, Steven M238771 23.27
443 Tomaszewski, Roman238764 22.71
444 Kelecevic, Nedeljko238657 35.89
445 Ochoa de Echaguen, F Javier238562 28.41
446 Nurkic, Sahbaz238574 26.88
447 Trikaliotis, Georgios238573 43.93
448 Van Baarle, C John238468 37.78
449 Barle, Janez238468 30.86
450 Van Riemsdijk, Herman C238466 34.43
451 Bohosjan, Sarkis238374 41.84
452 Rakic, Tomislav238366 48.22
453 Welin, Thomas238362 23.40
454 Nowak, Ignacy238262 34.05
455 Heinbuch, Detlef238264 22.06
456 Filipowicz, Andrzej238259 44.72
457 Tiller, Bjorn238262 24.04
458 Ernst, Thomas238163 22.45
459 Soos, Bela238163 52.90
460 Bukal, Vladimir Sr238171 43.25
461 Nicevski, Risto238059 37.59
462 Sisniega, Marcel238058 23.51
463 Bednarski, Jacek B238065 43.88
464 Kuijf, Marinus238063 22.96
465 Huss, Andreas237969 32.29
466 Rigo, Janos237963 34.26
467 Gross, Stefan237761 33.42
468 Segal, Alexandru Sorin237772 35.32
469 Herbrechtsmeier, Christof237764 29.09
470 Schinzel, Wladyslaw237659 39.69
471 Cooper, John Grantley237569
472 Balinas, Rosendo Carrean237563
473 Gauglitz, Gernot237558 20.59
474 Grigorov, Jordan N237564 29.15
475 Murray, J.237573
476 Akesson, Ralf237558 21.97
477 Swic, Waldemar237462 29.89
478 Brondum, Eric237465 41.12
479 Cabrilo, Goran237361 24.58
480 Tischbierek, Raj237354 20.35
481 Onat, Ilhan237373 53.15
482 Stefanov, Parik237261 28.24
483 Skalkotas, Nikolaos237169 33.36
484 Gobet, Fernand237162 20.96
485 Moehring, Guenther237058 46.18
486 Giardelli, Sergio C237060 27.59
487 Honfi, Karoly237060 52.27
488 Bass, Leonid237072 25.67
489 Danner, Georg237056 36.26
490 Doncevic, Dario237068 25.05
491 Pokojowczyk, Jerzy236952 33.94
492 Partos, Charles236962 46.47
493 Hoelzl, Franz236858 36.82
494 Pelts, Roman236775 45.89
495 Soylu, Suat236774
496 Filipovic, Branko236776 25.32
497 Pavlov, Mircea236758 45.38
498 Thorsteins, Karl236761 18.30
499 Sarwinski, Miroslaw236768 29.04
500 Radev, Nikolai236760 44.12

These ratings, calculated as of January 31, 1983, incorporate all games (against rated opponents) played in the time between February 1, 1982 and January 31, 1983, along with the ratings that were already calculated as of January 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 January 31, 1983. This represents the player's estimated strength on February 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 February 1, 1983. The +/- value represents the standard deviation of that estimate; the player's true strength on February 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 February 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 January 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.

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