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Top 10 active players as of February 29, 1984


Top 500 active players as of February 29, 1984

  #  

Player Rating +/- Best? 75%? Age
1 Kasparov, Garry K28205166.3% #220.88
2 Karpov, Anatoly E27674918.2% #532.77
3 Korchnoi, Viktor L2716503.2% #1652.93
4 Beliavsky, Alexander G2704501.8% #2030.20
5 Vaganian, Rafael A2697501.3% #2332.37
6 Portisch, Lajos2693491.1% #2446.90
7 Timman, Jan H2691480.9% #2632.21
8 Polugaevsky, Lev A2689511.1% #2749.27
9 Smyslov, Vassily V2680530.8% #3262.92
10 Ljubojevic, Ljubomir2677490.5% #3233.32
11 Dolmatov, Sergey V2675530.7% #3525.02
12 Andersson, Ulf2670480.3% #3632.67
13 Hübner, Robert2664490.3% #4135.31
14 Romanishin, Oleg M2660490.2% #4232.13
15 Spassky, Boris V2658490.2% #4447.08
16 Petrosian, Tigran V2657510.2% #4654.70
17 Ribli, Zoltán2655510.2% #4732.48
18 Miles, Anthony J2651480.1% #4928.85
19 Psakhis, Lev B2650490.1% #4925.25
20 Chernin, Alexander M2649570.3% #5423.97
21 Dorfman, Iosif D2648510.1% #5231.83
22 Eingorn, Viacheslav S2647560.3% #5627.26
23 Tal, Mikhail2646490.1% #5347.30
24 Gulko, Boris F2642540.1% #5837.05
25 Hort, Vlastimil2639490.1% #5840.13
26 Dvoiris, Semen I2635570.2% #6525.32
27 Lputian, Smbat G2634520.1% #6426.04
28 Nunn, John D M263349 #6328.84
29 Jussupow, Artur M263350 #6324.04
30 Larsen, Bent2632510.1% #6448.98
31 Kupreichik, Viktor D263152 #6634.65
32 Sosonko, Gennadi262150 #7440.78
33 Ftácnik, Lubomír262148 #7326.33
34 Vyzmanavin, Alexey2619610.1% #8224.16
35 Malaniuk, Vladimir P261952 #7626.61
36 Ehlvest, Jaan2619580.1% #8121.37
37 Bronstein, David I2615570.1% #8360.03
38 Agzamov, Georgy T261553 #8029.48
39 Browne, Walter S261551 #8035.13
40 Kuzmin, Gennady P261454 #8138.11
41 Seirawan, Yasser261449 #7923.92
42 Geller, Efim P261450 #8058.98
43 Balashov, Yury S261449 #8034.96
44 Sveshnikov, Evgeny E261350 #8034.05
45 Tseshkovsky, Vitaly V261250 #8239.43
46 Chekhov, Valery A261251 #8328.26
47 Nikolic, Predrag260849 #8523.47
48 Tukmakov, Vladimir B260350 #9137.95
49 Razuvaev, Yury S260151 #9338.38
50 Christiansen, Larry M260052 #9427.67
51 Vaisser, Anatoli259953 #9634.98
52 Kavalek, Lubomir259852 #9740.55
53 Salov, Valery B2598660.1% #10719.76
54 Kochiev, Alexander259655 #10027.92
55 Gavrikov, Victor N259452 #10026.58
56 Gipslis, Aivars259458 #10547.06
57 Lerner, Konstantin Z259052 #10534.00
58 Yudasin, Leonid G258752 #10824.56
59 Dvoretsky, Mark I258766 #11636.22
60 Adorján, András258748 #10533.91
61 Parma, Bruno2586730.1% #12342.16
62 Yurtaev, Leonid258655 #11024.83
63 Vasiukov, Evgeny A258556 #11250.98
64 Timoshchenko, Gennady258359 #11834.84
65 Didishko, Vereslav258159 #11834.88
66 Kharitonov, Andrey Y258155 #11624.90
67 Smejkal, Jan258050 #11337.93
68 Vorotnikov, Vladislav V257860 #12236.53
69 Petrosian, Arshak B257852 #11730.20
70 Azmaiparashvili, Zurab A257651 #11823.95
71 Sax, Gyula257549 #11832.70
72 Makarichev, Sergey Y257452 #12130.28
73 Rozentalis, Eduardas257461 #12820.76
74 Georgadze, Tamaz V257355 #12436.30
75 Zaichik, Gennady L257354 #12327.05
76 Mikhalchishin, Adrian B257152 #12429.28
77 Panno, Oscar R257159 #12948.94
78 Gorelov, Sergey G256961 #13226.53
79 Gheorghiu, Florin256752 #12839.90
80 Kremenetsky, Anatoly M256772 #14145.12
81 Byrne, Robert E256557 #13455.86
82 Podgaets, Mikhail Y256565 #14036.60
83 Averkin, Orest N256473 #14440.01
84 Ubilava, Elizbar E256453 #13133.51
85 Torre, Eugenio256450 #13032.32
86 Sokolov, Andrey Y256356 #13420.94
87 Savon, Vladimir A256360 #13743.42
88 Pigusov, Evgeny256358 #13522.91
89 Quinteros, Miguel A256252 #13336.17
90 Speelman, Jonathan S256150 #13227.41
91 Taimanov, Mark E256158 #13958.06
92 Kurajica, Bojan255949 #13436.29
93 Knaak, Rainer F255850 #13530.95
94 Korzubov, Peter255654 #14122.16
95 Rashkovsky, Nukhim N255454 #14337.86
96 Marjanovic, Slavoljub255450 #14029.15
97 van der Wiel, John T H255449 #13924.55
98 Zilberman, Nathan R255364 #14943.82
99 Mestel, A Jonathan255251 #14126.95
100 Karlsson, Lars255250 #14028.63
101 Bagirov, Vladimir K255151 47.54
102 Ivanovic, Božidar255050 37.51
103 Velimirovic, Dragoljub255052 41.80
104 Anikaev, Yury254955 35.67
105 Kholmov, Ratmir D254955 58.79
106 Novikov, Igor A254861 21.77
107 Chandler, Murray G254849 23.90
108 Panchenko, Alexander N254852 30.40
109 Csom, István254650 43.74
110 Dzindzichashvili, Roman Y254656 39.81
111 Kovacevic, Vladimir254651 41.92
112 Stean, Michael F254357 30.48
113 Polovodin, Igor A254257 28.93
114 Guseinov, Aidyn254155 32.16
115 Vitolinš, Alvis254058 37.70
116 Tarjan, James E254053 32.02
117 Reshevsky, Samuel H253959 72.26
118 Suba, Mihai253850 36.74
119 Faragó, Iván253750 37.91
120 Barua, Dibyendu253659 17.34
121 Ivanov, Igor V253652 37.14
122 Sturua, Zurab253558 24.72
123 Zakharov, Alexander V253467 40.39
124 Yermolinsky, Alex V253260 25.88
125 Abramovic, Boško253150 33.04
126 Veingold, Aleksander253160 30.38
127 Gufeld, Eduard E253053 47.94
128 deFirmian, Nicholas E253050 26.59
129 Cebalo, Mišo253052 39.06
130 Thipsay, Praveen Mahadeo252759 24.55
131 Palatnik, Semen A252761 33.92
132 Gligoric, Svetozar252750 61.07
133 Uhlmann, Wolfgang252750 48.91
134 Shamkovich, Leonid A252652 60.74
135 Shneider, Aleksandr252557 21.77
136 Eolian, Levon S252572 24.45
137 Short, Nigel D252549 18.74
138 Henley, Ron W252451 27.23
139 Vogt, Lothar H252250 32.12
140 Cámpora, Daniel H252054 26.66
141 Osnos, Viacheslav V251962 48.60
142 Ivkov, Borislav251953 50.30
143 Alburt, Lev O251851 38.52
144 Ivanov, Alexander V251870 27.83
145 Pintér, József251853 30.30
146 Shereshevsky, Mikhail I251774 33.86
147 Kengis, Edvins251755 24.88
148 Ree, Hans251750 39.45
149 Spraggett, Kevin B251660 29.30
150 Meduna, Eduard251550 33.47
151 Tatai, Stefano251554 45.93
152 Simic, Radoslav251456 35.72
153 Unzicker, Wolfgang251454 58.67
154 Tseitlin, Mikhail S251458 36.70
155 Najdorf, Miguel251359 73.87
156 Kudrin, Sergey251251 24.48
157 Pfleger, Helmut251253 40.56
158 Vladimirov, Evgeny Y251158 27.11
159 Oll, Lembit250956 17.85
160 Lobron, Eric250949 23.81
161 Andrianov, Nikolai250966 22.19
162 Keene, Raymond250854
163 Matanovic, Aleksandar250871 53.77
164 Grigorian, Karen A250759 36.48
165 Spassov, Liuben250751 40.93
166 Liberzon, Vladimir M250757 46.93
167 Wedberg, Tom250751 30.26
168 Nikolic, Zivoslav250757 30.21
169 Inkiov, Ventzislav250649 27.78
170 Gurevich, Mikhail N250562 25.02
171 Ostermeyer, Peter250554 40.38
172 Klovans, Janis250557 48.89
173 Hazai, Laszlo250452 30.71
174 Mokrý, Karel250453 25.06
175 Nikolac, Juraj250463 51.85
176 Velikov, Petar250351 32.91
177 Groszpeter, Attila250352 23.72
178 Suetin, Alexey S250358 57.29
179 Gruenfeld, Yehuda250356 28.00
180 Glek, Igor V250361 22.31
181 Malich, Burkhard G250263 47.25
182 Marovic, Dražen250273 46.12
183 Mnatsakanian, Eduard A250260 45.23
184 García Gonzáles, Guillermo250150 30.22
185 Franco Ocampos, Zenon250155 27.80
186 Gurevich, Dmitry250050 27.47
187 Chiburdanidze, Maia G250056 23.12
188 Popovic, Petar249955 25.04
189 Nemet, Ivan249962 40.87
190 Jamieson, Robert Murray249875
191 Hulak, Krunoslav249850 32.76
192 Hansen, Curt249851 19.45
193 Espig, Lutz249851 35.15
194 Bukic, Enver249760 46.24
195 Agdestein, Simen249655 16.79
196 Lukacs, Peter249651 33.64
197 Schmidt, Wlodzimierz249449 40.88
198 Schussler, Harry249351 26.68
199 Kruppa, Yuri249367 19.69
200 Szabó, László249273 66.94
201 Strauss, David J249273 37.56
202 Lein, Anatoly249251 52.91
203 Georgiev, Krum249251 25.76
204 Vukic, Milan249153 40.53
205 Bikhovsky, Avigdor I249162 28.98
206 Gurgenidze, Bukhuti I249157 50.29
207 Řgaard, Leif249055 32.15
208 Petrushin, Alexander I249059 36.96
209 Djuric, Stefan248954 28.59
210 Lechtynsky, Jiri248850 36.26
211 Bilek, István248861 51.55
212 Lukin, Andrei M248859 35.50
213 Donchev, Dimitar I248753 25.61
214 Biyiasas, Peter248771 33.28
215 Matulovic, Milan248754 48.72
216 Nogueiras, Jesus248652 24.62
217 Podzielny, Karl Heinz248571 29.47
218 Díez del Corral, Jesús248566 50.90
219 Peters, John A248568 33.05
220 Sigurjónsson, Gudmundur248453 36.43
221 Zapata, Alonso248452 25.52
222 Pachmann, Ludek248367 59.80
223 Velickovic, Sasa248361 32.91
224 Olafsson, Fridrik248260 49.09
225 Kindermann, Stefan248251 24.17
226 Soltis, Andrew E248163 36.75
227 Sunye Neto, Jaime248152 26.82
228 Mednis, Edmar J248059 46.93
229 Padevsky, Nikola B247961 50.75
230 Radulov, Ivan247850 45.14
231 Todorcevic, Miodrag247870 43.30
232 Rodriguez, Amador247652 27.47
233 Rukavina, Josip247655 41.25
234 Tringov, Georgy P247654 46.97
235 Rogulj, Branko247570 32.58
236 Pribyl, Josef247551 36.38
237 Benko, Pal C247362 55.62
238 Tavadian, Ragik247362
239 Calvo Minguez, Ricardo247375 40.35
240 Adamski, Jan247351 40.30
241 Murey, Yakov247251 42.57
242 Schneider, Lars Ake247153
243 Bönsch, Uwe247151 25.37
244 Antoshin, Vladimir S247170 54.79
245 Wolf, Volker247165 26.48
246 Gruenberg, Hans Ulrich247153 28.14
247 Mortensen, Erling247150 28.90
248 Pétursson, Margeir246953 24.04
249 Kogan, Boris246960
250 Jansa, Vlastimil246949 41.26
251 Zaitsev, Igor A246857 45.76
252 Ghinda, Mihail Viorel246856 34.59
253 Arnason, Jon L246852 23.29
254 Greenfeld, Alon246756 19.87
255 Plachetka, Jan246749 39.03
256 Olafsson, Helgi246756 27.54
257 Pytel, Krzysztof246758 38.79
258 Popov, Luben246656 48.09
259 Portisch, Ferenc246655 44.89
260 Mariotti, Sergio246662 37.55
261 Van der Sterren, Paul246650 27.94
262 Kraidman, Yair246561 51.33
263 Hug, Werner246572 31.47
264 Duer, Arne246575 24.63
265 Birnboim, Nathan246359 33.26
266 Bastian, Herbert246356 31.22
267 Kaidanov, Gregory S246261 24.38
268 Bisguier, Arthur B246262 54.39
269 Rajkovic, Dusan246252 41.70
270 Stoica, Valentin246258 34.04
271 Martin, Andrew D246158 26.78
272 Fernandez Garcia, Jose Luis246059 29.82
273 Gutman, Lev246055 38.42
274 Hebden, Mark246052 26.04
275 Szekely, Peter246054 29.06
276 Stohl, Igor245957 19.42
277 Robatsch, Karl245857 55.37
278 Arbakov, Valentin245862 32.09
279 Sznapik, Aleksander245750 33.05
280 Klaric, Zlatko245763 27.35
281 Lazic, Miroljub245668 17.67
282 Eslon, Jaan245666 31.98
283 Spiridonov, Nikola245652 46.00
284 Shvidler, Eliahu245657 24.19
285 Vera, Reynaldo245652 23.14
286 Fedorowicz, John P245558 25.42
287 Helmers, Knut J245555 27.06
288 Prandstetter, Eduard245553 35.20
289 Martz, William E245575
290 Kirov Ivanov, Nino245552 38.47
291 Van Wijgerden, Cornelis245454 33.77
292 Barczay, Laszlo245455 48.02
293 Legky, Nikolay A245467 28.88
294 Danailov, Silvio245463 22.86
295 Kristiansen, Jens245352 31.76
296 Rodriguez, Ruben245264 37.23
297 Zaltsman, Vitaly F245257 42.34
298 Bjelajac, Milan245257 35.95
299 Botterill, George Steven245174
300 Mochalov, Evgeny V245169 32.33
301 Sharif, Mershad245175 31.63
302 Martinovic, Slobodan245153 38.59
303 Karner, Hillar245159 48.59
304 Vokác, Marek245070 25.23
305 Toth, Bela245054 40.86
306 Lederman, Leon245069 36.76
307 Sygulski, Artur244954 23.60
308 Dobrovolsky, Ladislav244856 33.18
309 Hartston, William R244767 36.55
310 Hamann, Svend244763 43.39
311 Vadasz, Laszlo244667 36.09
312 Renman, Nils Gustaf244671
313 Hebert, Jean244666 26.30
314 Forintos, Gyözö V244659 48.58
315 Taulbut, Shaun M244566 26.13
316 Feustel, Bernd244563 29.44
317 Ost Hansen, Jacob244455
318 Govedarica, Radovan244373 36.04
319 Plaskett, Jim244356 23.94
320 Ionov, Sergey244267 22.14
321 Hjartarson, Jóhann244254 21.06
322 Wockenfuss, Klaus244159 32.50
323 Nei, Iivo244163 52.33
324 Pekarek, Ales244072 22.20
325 Lanka, Zigurds243963 23.77
326 Giorgadze, Giorgi243964 19.38
327 Ambroz, Jan243856 29.70
328 Levitina, Irina S243858 29.72
329 Bronstein, Luis243766 37.74
330 Lalev, Dimitar243759 24.12
331 Knezevic, Milorad243751 47.33
332 Zilberstein, Valery I243665 40.88
333 Cvetkovic, Srdjan243658 38.00
334 Rubinetti, Jorge A243665 38.91
335 Palacios, Antonio243571 31.29
336 Szmetan, Jorge243562 33.76
337 Commons, Kim S243572 32.60
338 Ardiansyah, Haji243554 32.23
339 Schweber, Samuel243463 47.62
340 Nurkic, Sahbaz243466 27.95
341 Hecht, Hans-Joachim243466 45.08
342 Bass, Leonid243461 26.75
343 Ligterink, Gert243452 34.28
344 Hermann, Manfred243361 41.49
345 Tischbierek, Raj243353 21.43
346 Jakobsen, Ole243353 41.36
347 Ernst, Thomas243365 23.53
348 Dizdar, Goran243355 25.23
349 Bischoff, Klaus243354 22.72
350 Cifuentes Parada, Roberto243372 26.19
351 Rivas Pastor, Manuel243253 23.63
352 Yrjola, Jouni243262 24.35
353 Gerusel, Mathias243275 46.06
354 Nun, Josef243259 50.60
355 Garcia Palermo, Carlos243256 30.24
356 Raicevic, Vladimir243166 34.82
357 Nun, Jiri243063 26.59
358 Donner, Johannes H243065 56.65
359 Goehring, Karl Heinz243065
360 Kagan, Shimon243059 41.90
361 Cabrilo, Goran242955 25.66
362 Bellin, Robert242965 31.66
363 Ghitescu, Theodor242967 50.10
364 Soppe, Guillermo242974 23.45
365 Wittmann, Walter242861 35.95
366 Schneider, Attila242856 28.87
367 Flear, Glenn C242868 25.05
368 Scheeren, Peter242757 28.58
369 Skembris, Spyridon242753 26.02
370 Eng, Holger242765 23.01
371 Benjamin, Joel L242659 19.96
372 Rodriguez Vargas, Orestes242671 40.65
373 Foisor, Ovidiu242655 24.90
374 Trapl, Jindrich242572 41.92
375 Thorsteins, Karl242559 19.38
376 McCambridge, Vincent242560 23.97
377 Qi Jingxuan242564 36.30
378 Kaiszauri, Konstanty242566 31.34
379 Pliester, Leon242564 29.52
380 Sahovic, Dragutin242454 43.56
381 Bouaziz, Slim242355 33.87
382 Gomez Baillo, Jorge H242373 24.86
383 Hase, Juan Carlos242362
384 Loginov, Valery A242365 28.21
385 Minic, Dragoljub242274 46.98
386 Wirthensohn, Heinz242257 32.82
387 Rantanen, Yrjo A242255 33.85
388 Semkov, Semko242157 23.99
389 Filipovic, Branko242163 26.40
390 Davies, Nigel R242163 23.58
391 Neckar, Lubomir242166 33.57
392 Hernandez, Roman242151 34.27
393 Gross, Stefan241965 34.50
394 Watson, John L241974 32.48
395 Alexandria, Nana241969 34.38
396 Ochoa de Echaguen, F Javier241759 29.48
397 Ciric, Dragoljub M241774 48.30
398 Doda, Zbigniew241763 53.02
399 Makropoulos, Georgios241767 30.42
400 Lukov, Valentin241753 28.22
401 Mascarinas, Rico241768 30.98
402 Ravikumar, Vaidyanathan241662 24.17
403 Tisdall, Jonathan D241655 25.51
404 Bielczyk, Jacek241654 31.02
405 Frias, Victor J241656 28.05
406 Brinck Claussen, Bjorn241555
407 Barlov, Dragan241552 27.08
408 Moskalenko, Viktor241567 23.23
409 Bohm, Hans241553 34.12
410 Sisniega, Marcel241456 24.59
411 Krnic, Zdenko241461 36.41
412 Garcia Martinez, Silvino241451 39.65
413 Seppeur, Reinhold241365 28.54
414 Littlewood, Paul E241260 28.11
415 Westerinen, Heikki MJ241250 39.84
416 Shirazi, Kamran G241263 31.27
417 Ornstein, Axel241154 31.85
418 Lengyel, Levente241158 50.71
419 Morovic Fernández, Iván E241174 20.92
420 Haik, Aldo241062 31.36
421 Bojkovic, Slobodan241067 38.59
422 Hausner, Ivan241059 31.87
423 Langeweg, Kick240953 46.97
424 Herzog, Adolf240968 30.73
425 Maki, Veijo240958 25.23
426 Zahariev, Zahari240967 22.47
427 Sideif Sade, Fikret I240963 32.16
428 Tompa, Janos240966 36.83
429 Kelecevic, Nedeljko240958 36.96
430 Cvitan, Ognjen240963 22.38
431 Ilic, Zoran240864 20.57
432 Handoko, Edhi240856 23.50
433 Vilela, Jose Luis240851 30.94
434 Banas, Jan240855 36.74
435 Kestler, Hans-Günter240766 44.21
436 Horvath, Tamas240753 32.35
437 Lau, Ralf240769 24.36
438 Osmanovic, Kemal240763 42.97
439 Hartoch, Robert G240766
440 Georgiev, Kiril240655 18.25
441 Borm, Franciscus WM240661
442 Rakic, Tomislav240558 49.30
443 Lanc, Alois240357 36.03
444 Sher, Miron N240367 31.67
445 Karpeshov, Oleg240367 30.06
446 Drasko, Milan240363 21.23
447 Gruen, Peter240361 27.12
448 Tomaszewski, Roman240371 23.79
449 Djukic, Zeljko240257 24.71
450 Jacoby, Gisbert240268 40.82
451 Pritchett, Craig William240270
452 Kuligowski, Adam240255 28.18
453 Zichichi, Alvise240058 45.65
454 Ermenkov, Evgenij239952 34.42
455 Petran, Pal239969 37.45
456 Rogers, Ian239856 23.68
457 Bany, Jerzy239766 22.98
458 Kataev, Simcho239667
459 Reefschlaeger, Helmut239560 39.89
460 Stempin, Pawel239554 24.63
461 Szymczak, Zbigniew239451 32.15
462 Akesson, Ralf239462 23.06
463 Trifunov, Dimitar239365 20.15
464 Heinbuch, Detlef239369 23.14
465 van Scheltinga, Tjeerd D239268 69.97
466 Adianto, Utut239258 18.95
467 Filipowicz, Andrzej239267 45.79
468 Damjanovic, Mato239264 56.93
469 Borik, Otto239158 36.43
470 Sydor, Andrzej239157 47.15
471 Peev, Peicho Chonev239070 43.91
472 Milovanovic, Rade239069 29.30
473 Doncevic, Dario239064 26.13
474 Whitehead, Jay E238962 22.38
475 Knoppert, Erik GJ238973
476 Danner, Georg238961 37.34
477 Casper, Thomas238958 24.94
478 Tiller, Bjorn238957 25.12
479 Velez, Nestor238864 27.81
480 Bajovic, Milan238866
481 Gunawan, Ronny238858 23.99
482 Hodgson, Julian M238759 20.59
483 Kunsztowicz, Uwe238765 40.11
484 Kuijf, Marinus238758 24.05
485 Fedder, Steen238662 32.71
486 Cramling, Dan238658 25.06
487 Welin, Thomas238570 24.48
488 Martin Gonzalez, Angel238568 31.15
489 Segal, Alexandru Sorin238474 36.40
490 Majorovas, Vitalijus238369 22.90
491 Pedersen, Erik238256 25.47
492 Santos, Luis238266 28.66
493 Monier, Raul238275 23.81
494 Sibarevic, Milenko238265 38.96
495 Staniszewski, Piotr238163 17.48
496 Moehring, Guenther238168 47.26
497 Nicevski, Risto238166 38.67
498 Dlugy, Maxim238160 18.08
499 Gauglitz, Gernot238071 21.67
500 Van Riemsdijk, Herman C238069 35.51

These ratings, calculated as of February 29, 1984, incorporate all games (against rated opponents) played in the time between March 1, 1983 and February 29, 1984, along with the ratings that were already calculated as of February 28, 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 February 29, 1984. This represents the player's estimated strength on March 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 March 1, 1984. The +/- value represents the standard deviation of that estimate; the player's true strength on March 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 March 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 February 29, 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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