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Top 10 active players as of February 28, 1985


Top 500 active players as of February 28, 1985

  #  

Player Rating +/- Best? 75%? Age
1 Karpov, Anatoly E28064948.4% #333.76
2 Kasparov, Garry K27944935.4% #321.87
3 Beliavsky, Alexander G2717493.0% #1731.20
4 Timman, Jan H2713472.2% #1833.21
5 Vaganian, Rafael A2707512.1% #2233.37
6 Polugaevsky, Lev A2698511.5% #2550.27
7 Korchnoi, Viktor L2693490.9% #2853.93
8 Ribli, Zoltán2684500.7% #3333.48
9 Agzamov, Georgy T2682510.7% #3430.48
10 Hübner, Robert2677490.5% #3636.31
11 Portisch, Lajos2677480.5% #3647.90
12 Dolmatov, Sergey V2677530.7% #3826.02
13 Nunn, John D M2664490.2% #4629.84
14 Smyslov, Vassily V2663510.3% #4863.92
15 Ljubojevic, Ljubomir2661500.2% #4834.32
16 Eingorn, Viacheslav S2661520.3% #4928.26
17 Psakhis, Lev B2657490.1% #5126.25
18 Gulko, Boris F2656510.2% #5438.05
19 Tal, Mikhail2652490.1% #5548.30
20 Andersson, Ulf2652480.1% #5533.67
21 Romanishin, Oleg M2650490.1% #5733.13
22 Tukmakov, Vladimir B2648500.1% #5938.95
23 Spassky, Boris V2644490.1% #6348.08
24 Miles, Anthony J264248 #6229.85
25 Chernin, Alexander M2642510.1% #6624.97
26 Lerner, Konstantin Z2637520.1% #7034.99
27 Sokolov, Andrey Y263651 #7121.93
28 Lputian, Smbat G263450 #7227.04
29 Balashov, Yury S263350 #7335.95
30 Gavrikov, Victor N262950 #7627.58
31 Seirawan, Yasser262850 #7724.92
32 Nikolic, Predrag262650 #7924.46
33 Bronstein, David I2626630.2% #8961.03
34 Zaichik, Gennady L2625540.1% #8328.05
35 Jussupow, Artur M262551 #8025.04
36 Dorfman, Iosif D262252 #8532.82
37 Sveshnikov, Evgeny E262250 #8335.05
38 Malaniuk, Vladimir P262053 #8827.60
39 Rozentalis, Eduardas261955 #8821.75
40 Kavalek, Lubomir261852 #8941.55
41 Dvoiris, Semen I2617590.1% #9526.32
42 Vasiukov, Evgeny A2616580.1% #9551.97
43 Razuvaev, Yury S261651 #9039.38
44 Vyzmanavin, Alexey261552 #9125.16
45 Ehlvest, Jaan261352 #9522.37
46 Chandler, Murray G261149 #9524.90
47 Dzindzichashvili, Roman Y260953 #9840.81
48 Smagin, Sergey260753 #10026.47
49 Geller, Efim P260751 #10059.98
50 Sosonko, Gennadi260650 #10141.78
51 Petrosian, Arshak B260651 #10131.20
52 Gipslis, Aivars2604650.1% #11348.05
53 Tseshkovsky, Vitaly V260351 #10440.43
54 Larsen, Bent260351 #10449.98
55 Makarichev, Sergey Y260255 #10831.28
56 Chekhov, Valery A260152 #10629.25
57 Kuzmin, Gennady P260052 #10839.11
58 Kochiev, Alexander259954 #11128.92
59 Panno, Oscar R259961 #11549.94
60 Christiansen, Larry M259851 #10928.67
61 Dvoretsky, Mark I2597750.2% #12637.22
62 Smejkal, Jan259650 #11138.93
63 Yurtaev, Leonid259661 #11725.82
64 Mikhalchishin, Adrian B259651 #11130.28
65 Speelman, Jonathan S259550 #11128.40
66 Timoshchenko, Gennady2593660.1% #12535.84
67 Ubilava, Elizbar E259252 #11634.50
68 Gurevich, Mikhail N259153 #11826.02
69 Torre, Eugenio259050 #11633.32
70 Adorján, András259048 #11634.91
71 Novikov, Igor A258952 #11922.76
72 Browne, Walter S258851 #11936.13
73 Salov, Valery B258856 #12320.76
74 Vaisser, Anatoli258751 #12035.97
75 Sax, Gyula258650 #12033.69
76 Ftácnik, Lubomír258648 #12027.33
77 Short, Nigel D258649 #12019.74
78 Pigusov, Evgeny258659 #12723.91
79 Eolian, Levon S258661 #12925.45
80 Hort, Vlastimil258648 #12041.13
81 Azmaiparashvili, Zurab A258555 #12524.94
82 Podgaets, Mikhail Y258360 #13137.60
83 Kharitonov, Andrey Y258252 #12525.90
84 Kupreichik, Viktor D258250 #12635.65
85 Velimirovic, Dragoljub258251 #12642.79
86 Karlsson, Lars257851 #13029.63
87 Naumkin, Igor257865 #13919.55
88 Tarjan, James E257454 #13633.02
89 Agdestein, Simen257454 #13617.79
90 Savon, Vladimir A257366 #14544.42
91 Byrne, Robert E256956 #14256.86
92 Cebalo, Mišo256951 #13940.06
93 Georgadze, Tamaz V256754 #14337.30
94 Pintér, József256752 #14131.30
95 Vorotnikov, Vladislav V256659 #14637.53
96 Gheorghiu, Florin256650 #14140.89
97 Bagirov, Vladimir K256453 #14648.53
98 Marjanovic, Slavoljub256349 #14330.14
99 Zilberman, Nathan R256372 #15744.82
100 Suba, Mihai256250 #14437.74
101 Mestel, A Jonathan256151 27.95
102 Shereshevsky, Mikhail I256071 34.85
103 Knaak, Rainer F256050 31.94
104 Sturua, Zurab256060 25.72
105 Anikaev, Yury256061 36.66
106 Yermolinsky, Alex V255958 26.88
107 Gligoric, Svetozar255952 62.07
108 Yudasin, Leonid G255852 25.55
109 deFirmian, Nicholas E255850 27.59
110 Panchenko, Alexander N255856 31.40
111 Popovic, Petar255750 26.04
112 Glek, Igor V255757 23.31
113 Gorelov, Sergey G255755 27.53
114 Didishko, Vereslav255562 35.88
115 Chiburdanidze, Maia G255453 24.11
116 Quinteros, Miguel A255353 37.17
117 Stean, Michael F255363 31.48
118 Polovodin, Igor A255263 29.93
119 van der Wiel, John T H255049 25.55
120 Gufeld, Eduard E255056 48.94
121 Korzubov, Peter254954 23.16
122 Vitolinš, Alvis254964 38.70
123 Taimanov, Mark E254753 59.06
124 Cámpora, Daniel H254654 27.66
125 Zapata, Alonso254551 26.52
126 Rashkovsky, Nukhim N254552 38.86
127 Guseinov, Aidyn254360 33.16
128 Reshevsky, Samuel H254361 73.26
129 Kholmov, Ratmir D254352 59.79
130 Kurajica, Bojan254249 37.29
131 Kovacevic, Vladimir254251 42.92
132 Henley, Ron W254152 28.23
133 Uhlmann, Wolfgang254051 49.91
134 Hazai, Laszlo253852 31.71
135 Barua, Dibyendu253866 18.34
136 Ostermeyer, Peter253753 41.38
137 Ivanovic, Božidar253749 38.51
138 Matanovic, Aleksandar253663 54.76
139 Kremenetsky, Anatoly M253564 46.12
140 Wedberg, Tom253451 31.26
141 Ivkov, Borislav253453 51.29
142 Smirin, Ilia253475 17.10
143 Kruppa, Yuri253466 20.69
144 Abramovic, Boško253350 34.04
145 Ekstroem, Roland253364 28.77
146 Mochalov, Evgeny V253268 33.33
147 Fedorowicz, John P253153 26.42
148 Shneider, Aleksandr253160 22.77
149 Ivanov, Igor V253154 38.14
150 Kogan, Boris253156
151 Andrianov, Nikolai253163 23.19
152 Gurgenidze, Bukhuti I253054 51.29
153 Klovans, Janis252962 49.89
154 Mnatsakanian, Eduard A252958 46.23
155 Lobron, Eric252948 24.81
156 Osnos, Viacheslav V252970 49.59
157 Kengis, Edvins252859 25.88
158 Alburt, Lev O252851 39.52
159 Oll, Lembit252857 18.85
160 Weinstein, Norman252874 34.40
161 Cherepkov, Alexander V252861 64.33
162 Graf, Alexander252860 22.51
163 Lukacs, Peter252850 34.64
164 Yuferov, Sergey N252762 39.23
165 Veingold, Aleksander252760 31.38
166 Inkiov, Ventzislav252649 28.78
167 Hulak, Krunoslav252651 33.76
168 Lombardy, William J252456 47.23
169 Mokrý, Karel252449 26.06
170 Barbero, Gerardo F252359 23.52
171 Najdorf, Miguel252365 74.87
172 Drasko, Milan252254 22.23
173 Nogueiras, Jesus252153 25.61
174 Vladimirov, Evgeny Y252165 28.11
175 Unzicker, Wolfgang252155 59.67
176 Keene, Raymond251859
177 Spraggett, Kevin B251854 30.30
178 Djuric, Stefan251851 29.59
179 Liberzon, Vladimir M251763 47.93
180 Tseitlin, Mikhail S251757 37.70
181 Benjamin, Joel L251754 20.96
182 Lein, Anatoly251653 53.91
183 Groszpeter, Attila251652 24.72
184 Gruenfeld, Yehuda251655 28.99
185 Pétursson, Margeir251651 25.04
186 Hansen, Curt251550 20.44
187 Vukic, Milan251456 41.53
188 Georgiev, Kiril251351 19.25
189 Neverov, Valery251362 20.69
190 Velikov, Petar251350 33.91
191 Thipsay, Praveen Mahadeo251255 25.54
192 Palatnik, Semen A251260 34.92
193 Simic, Radoslav251253 36.72
194 Malich, Burkhard G251271 48.25
195 Shamkovich, Leonid A251254 61.74
196 Wolf, Volker251266 27.48
197 Khalifman, Alexander251273 19.11
198 Kindermann, Stefan251150 25.17
199 Franco Ocampos, Zenon251161 28.79
200 Grigorian, Karen A251064 37.47
201 Matulovic, Milan251054 49.72
202 Rodriguez, Amador251051 28.47
203 Nemet, Ivan250970 41.87
204 Gurevich, Dmitry250951 28.46
205 Faragó, Iván250850 38.91
206 Vogt, Lothar H250751 33.11
207 Rukavina, Josip250756 42.25
208 Olafsson, Helgi250750 28.54
209 Bukic, Enver250767 47.24
210 García Gonzáles, Guillermo250650 31.22
211 Pfleger, Helmut250655 41.56
212 Hasanov, Marat250576 28.50
213 Nikolic, Zivoslav250552 31.21
214 Suetin, Alexey S250559 58.28
215 Lukin, Andrei M250455 36.50
216 Arnason, Jon L250250 24.29
217 Mednis, Edmar J250264 47.93
218 Stohl, Igor250253 20.42
219 Morovic Fernández, Iván E249957 21.92
220 Murey, Yakov249953 43.57
221 Yrjola, Jouni249852 25.34
222 Raicevic, Momcilo249866
223 Meduna, Eduard249850 34.46
224 Zuckerman, Bernard249770 41.91
225 Szekely, Peter249752 30.05
226 Csom, István249650 44.74
227 Sigurjónsson, Gudmundur249652 37.43
228 Ree, Hans249551 40.45
229 Gomez Baillo, Jorge H249559 25.86
230 Díez del Corral, Jesús249575 51.89
231 Schmidt, Wlodzimierz249349 41.88
232 Soppe, Guillermo249366 24.45
233 Bikhovsky, Avigdor I249370 29.97
234 Soltis, Andrew E249363 37.75
235 Olafsson, Fridrik249368 50.09
236 Benko, Pal C249263 56.62
237 Pekarek, Ales249261 23.20
238 Tringov, Georgy P249153 47.97
239 Rogers, Ian249150 24.68
240 Prandstetter, Eduard249151 36.20
241 Portisch, Ferenc249155 45.89
242 Georgiev, Krum249050 26.76
243 Dlugy, Maxim248955 19.08
244 Donchev, Dimitar I248950 26.60
245 Kudrin, Sergey248949 25.47
246 Hjartarson, Jóhann248950 22.05
247 Pytel, Krzysztof248852 39.79
248 Sunye Neto, Jaime248853 27.82
249 Petrushin, Alexander I248860 37.96
250 Nikolac, Juraj248865 52.85
251 London, Dimitri248868 22.27
252 Jansa, Vlastimil248849 42.25
253 Greenfeld, Alon248757 20.86
254 Lechtynsky, Jiri248749 37.26
255 Bilek, István248565 52.55
256 Kishnev, Sergey248560 28.32
257 Plaskett, Jim248550 24.94
258 Radulov, Ivan248551 46.14
259 Řgaard, Leif248458 33.15
260 Ghinda, Mihail Viorel248353 35.59
261 Schussler, Harry248351 27.68
262 Fernandez Garcia, Jose Luis248361 30.82
263 Aseev, Konstantin N248153 24.36
264 Filipovic, Branko248161 27.39
265 Podzielny, Karl Heinz248157 30.47
266 Bany, Jerzy248057 23.98
267 Tatai, Stefano248052 46.93
268 Espig, Lutz247953 36.15
269 Renman, Nils Gustaf247965
270 Zaitsev, Igor A247863 46.75
271 Govedarica, Radovan247864 37.04
272 Moskalenko, Viktor247766 24.23
273 Popov, Luben247757 49.08
274 Kaidanov, Gregory S247763 25.38
275 Sahovic, Dragutin247651 44.55
276 Mariotti, Sergio247670 38.55
277 Bisguier, Arthur B247567 55.39
278 Tavadian, Ragik247570
279 Schneider, Lars Ake247557
280 Kraidman, Yair247569 52.32
281 Gutman, Lev247552 39.42
282 Botterill, George Steven247464
283 Plachetka, Jan247449 40.03
284 Padevsky, Nikola B247467 51.75
285 Spassov, Liuben247350 41.93
286 Bönsch, Uwe247351 26.37
287 Haik, Aldo247355 32.36
288 Kirov Ivanov, Nino247351 39.47
289 Hebden, Mark247354 27.04
290 Strauss, David J247365 38.56
291 Velickovic, Sasa247259 33.91
292 Rajkovic, Dusan247256 42.70
293 Efimov, Igor247162 24.45
294 Antoshin, Vladimir S247163 55.79
295 Cvitan, Ognjen247053 23.38
296 Rubinetti, Jorge A247064 39.91
297 Feustel, Bernd246969 30.44
298 Rogulj, Branko246971 33.57
299 Cifuentes Parada, Roberto246962 27.19
300 Peters, John A246859 34.05
301 Arbakov, Valentin246870 33.08
302 Mirkovic, Slobodan246858 26.58
303 Antunes, Antonio246771 23.06
304 Rivas Pastor, Manuel246752 24.62
305 Toth, Bela246754 41.86
306 Hermann, Manfred246663 42.49
307 Ermenkov, Evgenij246651 35.41
308 Shvidler, Eliahu246560 25.19
309 Nun, Jiri246564 27.59
310 Ardiansyah, Haji246557 33.23
311 Van Wijgerden, Cornelis246560 34.76
312 Gruenberg, Hans Ulrich246455 29.14
313 Dizdar, Goran246456 26.23
314 Birnboim, Nathan246363 34.25
315 Mortensen, Erling246352 29.90
316 Andres Mendez, Miguel246262
317 Rodriguez, Ruben246272 38.22
318 Bjelajac, Milan246263 36.95
319 Tischbierek, Raj246152 22.43
320 Flear, Glenn C246156 26.04
321 Forintos, Gyözö V246062 49.58
322 Vokác, Marek246060 26.23
323 Arkell, Keith C246064 24.14
324 Womacka, Mathias246059 18.67
325 Hartston, William R245964 37.54
326 Duer, Arne245972 25.63
327 Vera, Reynaldo245952 24.14
328 Seret, Jean Luc245965
329 Hug, Werner245861 32.47
330 Hawelko, Marek245864 25.55
331 Ligterink, Gert245852 35.28
332 Garcia Palermo, Carlos245756 31.24
333 Hamann, Svend245771 44.39
334 Sygulski, Artur245753 24.60
335 Leow Leslie M245771
336 Vilela, Jose Luis245752 31.94
337 Li Zunian245663 27.14
338 Heinbuch, Detlef245661 24.14
339 Taulbut, Shaun M245674 27.13
340 Legky, Nikolay A245576 29.88
341 Gruen, Peter245558 28.12
342 Klaric, Zlatko245566 28.34
343 Stoica, Valentin245462 35.04
344 Pelts, Roman245470 47.96
345 Ost Hansen, Jacob245461
346 Zaltsman, Vitaly F245462 43.34
347 Van der Sterren, Paul245352 28.94
348 Ochoa de Echaguen, F Javier245363 30.48
349 Frias, Victor J245356 29.05
350 Nei, Iivo245171 53.33
351 Knezevic, Milorad245149 48.33
352 Sharif, Mershad245172 32.63
353 Barczay, Laszlo245060 49.02
354 Eslon, Jaan245062 32.98
355 Helmers, Knut J244956 28.06
356 Pecorelli Garcia, Humberto244958 21.21
357 Dzuban, Oleg I244967
358 Litvinov, Vladimir244973 43.62
359 Raicevic, Vladimir244756 35.82
360 Zilberstein, Valery I244674 41.87
361 Karner, Hillar244659 49.59
362 Barbulescu, Dan244662 20.68
363 Kuzmin, Alexey244665 21.97
364 Adamski, Jan244650 41.30
365 Ernst, Thomas244557 24.53
366 Nun, Josef244558 51.60
367 Goehring, Karl Heinz244566
368 Hernandez, Roman244453 35.26
369 Sznapik, Aleksander244449 34.05
370 Qi Jingxuan244462 37.30
371 Ionov, Sergey244376 23.14
372 Staniszewski, Piotr244357 18.48
373 Wirthensohn, Heinz244256 33.82
374 Lau, Ralf244258 25.36
375 Reyes, Juan244173 21.84
376 Watson, John L244167 33.48
377 Lalev, Dimitar244061 25.12
378 Donner, Johannes H244073 57.64
379 Giorgadze, Giorgi244072 20.38
380 Bastian, Herbert244060 32.22
381 Mascarinas, Rico244064 31.98
382 Shaboian, V.244068
383 Banas, Jan243953 37.73
384 Ricardi, Pablo243959 23.01
385 Wiedenkeller, Michael243861 22.13
386 Ghitescu, Theodor243762 51.09
387 Bischoff, Klaus243757 23.72
388 Lanka, Zigurds243766 24.77
389 Danailov, Silvio243653 23.85
390 Nurkic, Sahbaz243675 28.95
391 Foisor, Ovidiu243661 25.89
392 Doda, Zbigniew243663 54.02
393 Bass, Leonid243569 27.75
394 Ambroz, Jan243558 30.69
395 Ornstein, Axel243555 32.84
396 Barlov, Dragan243549 28.08
397 Kaiszauri, Konstanty243575 32.34
398 Spiridonov, Nikola243450 46.99
399 McCambridge, Vincent243455 24.97
400 Abreu, Jorge D243471 26.70
401 Van Riemsdijk, Herman C243460 36.51
402 Dobrovolsky, Ladislav243356 34.18
403 Gross, Stefan243356 35.50
404 Hase, Juan Carlos243370
405 Scheeren, Peter243261 29.58
406 Skembris, Spyridon243255 27.02
407 Klundt, Klaus243269 43.18
408 Ilinsky, Vladimir243268
409 Davies, Nigel R243164 24.58
410 Neckar, Lubomir243175 34.57
411 Schneider, Attila243157 29.87
412 Bellin, Robert243067 32.66
413 Handoko, Edhi243059 24.50
414 Bielczyk, Jacek243056 32.01
415 Harandi, Khosro243068 34.49
416 Martin, Andrew D243055 27.78
417 Manouck, Thierry243065 27.79
418 Karolyi, Tibor Jr242953 23.29
419 Garcia Martinez, Silvino242951 40.65
420 Wittmann, Walter242956 36.95
421 Zueger, Beat242957 23.73
422 Kagan, Shimon242964 42.89
423 Cabrilo, Goran242854 26.66
424 Tisdall, Jonathan D242857 26.51
425 Szmetan, Jorge242760 34.76
426 Bronstein, Luis242761 38.74
427 Martinovic, Slobodan242751 39.59
428 Debarnot, Roberto242670 37.56
429 Westerinen, Heikki MJ242651 40.84
430 Derikum, Axel242665 30.79
431 Bergstrom, Christer242573 26.42
432 Kristiansen, Jens242551 32.76
433 Piesina, Gintautas242568 32.89
434 Schweber, Samuel242562 48.62
435 Loginov, Valery A242473 29.21
436 Bukal, Vladimir Sr242464 45.32
437 Borm, Franciscus WM242463
438 Seppeur, Reinhold242463 29.54
439 Pribyl, Josef242451 37.38
440 Littlewood, Paul E242465 29.11
441 Wockenfuss, Klaus242358 33.50
442 Casper, Thomas242356 25.94
443 Levitina, Irina S242356 30.72
444 Piasetski, Leon David242371
445 Jakobsen, Ole242253 42.36
446 Bouaziz, Slim242259 34.87
447 Doncevic, Dario242265 27.13
448 Hecht, Hans-Joachim242162 46.08
449 Damljanovic, Branko242155 23.70
450 Langeweg, Kick242055 47.97
451 Paehtz, Thomas Sr242051 28.48
452 Robatsch, Karl241959 56.37
453 Sideif Sade, Fikret I241972 33.16
454 Tompa, Janos241974 37.83
455 Kelecevic, Nedeljko241964 37.96
456 Thorsteins, Karl241956 20.37
457 Bellon Lopez, Juan Manuel241952 34.80
458 Ilic, Zoran241960 21.57
459 Pliester, Leon241870 30.52
460 Moehring, Guenther241863 48.26
461 Reefschlaeger, Helmut241860 40.89
462 Hodgson, Julian M241858 21.59
463 Klinger, Josef241857 17.73
464 Hartoch, Robert G241763
465 Pedersen, Erik241756 26.46
466 Popchev, Milko241762 20.30
467 Eng, Holger241759 24.00
468 Bohm, Hans241654 35.12
469 Rakic, Tomislav241565 50.30
470 Cvetkovic, Srdjan241459 38.99
471 Sanna, Gianlazzaro241461 24.88
472 Lengyel, Levente241463 51.71
473 Krnic, Zdenko241459 37.40
474 Kolev, Atanas241463 17.62
475 Zichichi, Alvise241360 46.65
476 Djukic, Zeljko241362 25.71
477 Saidy, Anthony F241269 47.78
478 Hawksworth, John C241166 21.23
479 McNab, Colin Anderson241156 24.07
480 Pritchett, Craig William241168
481 Wilder, Michael241168 22.45
482 Liang Jinrong241065 24.77
483 Kestler, Hans-Günter241068 45.21
484 Jacoby, Gisbert241069 41.82
485 Brinck Claussen, Bjorn240956
486 Osmanovic, Kemal240971 43.97
487 Garcia, Gildardo240858 30.96
488 Tomaszewski, Roman240762 24.78
489 Cramling, Dan240761 26.06
490 Zahariev, Zahari240761 23.47
491 Eising, Johannes240771 49.75
492 Monier, Raul240770 24.81
493 Maki, Veijo240761 26.22
494 Paulsen, Dirk240560 26.09
495 Horner, Jeff240570 35.51
496 Pils, Walter240560 36.62
497 Grigorov, Jordan N240553 31.22
498 Karpeshov, Oleg240476 31.06
499 Sher, Miron N240476 32.66
500 Williams, Arthur Howard240475

These ratings, calculated as of February 28, 1985, incorporate all games (against rated opponents) played in the time between March 1, 1984 and February 28, 1985, along with the ratings that were already calculated as of February 29, 1984. 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 28, 1985. This represents the player's estimated strength on March 1, 1985.

+/- 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, 1985. The +/- value represents the standard deviation of that estimate; the player's true strength on March 1, 1985 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, 1985. 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 28, 1985. 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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