< October 31, 1974     Back to date list    February 28, 1975 >

Top 10 active players as of December 31, 1974

  #  

Player Rating +/-
1 Fischer, Robert J289162
2 Karpov, Anatoly E276749
3 Korchnoi, Viktor L272849
4 Petrosian, Tigran V270149
5 Spassky, Boris V269150
6 Polugaevsky, Lev A268849
7 Hübner, Robert268354
8 Tal, Mikhail268148
9 Larsen, Bent266451
10 Smyslov, Vassily V266051

About these ratings

Top 500 active players as of December 31, 1974

  #  

Player Rating +/- Best? 75%? Age
1 Fischer, Robert J28916291.7% #131.81
2 Karpov, Anatoly E2767495.2% #423.61
3 Korchnoi, Viktor L2728491.2% #943.77
4 Petrosian, Tigran V2701490.4% #1545.54
5 Spassky, Boris V2691500.2% #1837.91
6 Polugaevsky, Lev A2688490.2% #1940.11
7 Hübner, Robert2683540.2% #2226.15
8 Tal, Mikhail2681480.1% #2138.14
9 Larsen, Bent2664510.1% #2839.82
10 Smyslov, Vassily V266051 #3053.77
11 Portisch, Lajos265849 #3037.74
12 Byrne, Robert E2652540.1% #3546.70
13 Geller, Efim P265251 #3449.83
14 Vaganian, Rafael A264651 #3723.21
15 Dvoretsky, Mark I264354 #3927.06
16 Vasiukov, Evgeny A264250 #3841.82
17 Furman, Semen A263857 #4354.08
18 Romanishin, Oleg M263554 #4422.97
19 Tukmakov, Vladimir B263451 #4328.79
20 Ljubojevic, Ljubomir263349 #4324.16
21 Tseshkovsky, Vitaly V263154 #4630.27
22 Mecking, Henrique263055 #4722.93
23 Lein, Anatoly262858 #4943.76
24 Krogius, Nikolay V2625640.1% #5444.44
25 Hort, Vlastimil262448 #4830.96
26 Keres, Paul262254 #5158.98
27 Smejkal, Jan261751 #5328.77
28 Kuzmin, Gennady P261651 #5428.94
29 Andersson, Ulf261248 #5523.51
30 Grefe, John A260958 #6127.32
31 Balashov, Yury S260751 #6025.80
32 Gligoric, Svetozar260649 #6051.91
33 Averbakh, Yury L260368 #7152.89
34 Gipslis, Aivars260160 #6837.89
35 Gufeld, Eduard E260153 #6638.78
36 Gheorghiu, Florin260050 #6430.73
37 Gulko, Boris F259455 #7127.89
38 Browne, Walter S259350 #7025.97
39 Schmid, Lothar M259059 #7646.64
40 Kavalek, Lubomir258949 #7331.39
41 Savon, Vladimir A258850 #7334.26
42 Beliavsky, Alexander G258851 #7421.04
43 Panno, Oscar R258553 #7839.79
44 Szabó, László258451 #7757.78
45 Dzindzichashvili, Roman Y258262 #8530.65
46 Kholmov, Ratmir D258153 #8049.63
47 Suetin, Alexey S258053 #8148.12
48 Ivkov, Borislav257949 #8041.13
49 Liberzon, Vladimir M257854 #8437.77
50 Olafsson, Fridrik257754 #8539.92
51 Klovans, Janis257460 #9039.73
52 Unzicker, Wolfgang256956 #9349.51
53 Karasev, Vladimir I256557 #9636.54
54 Matulovic, Milan256451 #9439.56
55 Pfleger, Helmut256352 #9631.40
56 Darga, Klaus V256265 #10540.85
57 Pachmann, Ludek256169 #10750.64
58 Sanguinetti, Raúl C255959 #10341.90
59 Alburt, Lev O255957 #10229.36
60 Lutikov, Anatoly S255861 #10441.90
61 Reshevsky, Samuel H255854 #10163.10
62 Nei, Iivo255663 #10843.17
63 Uhlmann, Wolfgang255650 #10039.76
64 Grigorian, Karen A255557 #10527.32
65 Bronstein, David I255453 #10450.86
66 Ribli, Zoltán255449 #10123.32
67 Bagirov, Vladimir K255456 #10638.37
68 Platonov, Igor V255264 #11240.95
69 Najdorf, Miguel254754 #11064.71
70 Taimanov, Mark E254752 #10948.89
71 Matanovic, Aleksandar254654 #11144.61
72 Kurajica, Bojan254653 #11127.13
73 Kapengut, Albert Z254359 #11730.49
74 Benko, Pal C254251 #11446.46
75 Planinc, Albin254149 #11330.70
76 Evans, Larry M254159 #11942.77
77 Lombardy, William J253954 #11937.07
78 Velimirovic, Dragoljub253752 #11832.63
79 Timman, Jan H253648 #11723.05
80 Tarjan, James E253253 #12222.85
81 Murey, Yakov253174 #13633.41
82 Parma, Bruno253151 #12333.00
83 Zhidkov, Valery S252967 #13535.32
84 Mukhin, Mikhail A252958 #12926.86
85 Jansa, Vlastimil252949 #12332.09
86 Razuvaev, Yury S252856 #12929.22
87 Commons, Kim S252756 #13123.44
88 Adorján, András252550 #12824.75
89 Csom, István252449 #12834.58
90 Averkin, Orest N252460 #13430.84
91 Radulov, Ivan252450 #12835.98
92 Sax, Gyula252351 #12923.54
93 Zaitsev, Igor A252273 #14336.59
94 Filip, Miroslav252058 #13646.18
95 Donner, Johannes H251949 #13347.48
96 Palatnik, Semen A251763 #14124.76
97 Hecht, Hans-Joachim251649 #13535.92
98 Shereshevsky, Mikhail I251565 #14524.69
99 Karner, Hillar251566 #14539.43
100 Bukic, Enver251460 #14237.08
101 Kovacevic, Vladimir251466 32.76
102 Kirov Ivanov, Nino251355 29.31
103 Díez del Corral, Jesús251360 41.73
104 Quinteros, Miguel A251249 27.01
105 Torre, Eugenio251252 23.16
106 Bilek, István251051 42.39
107 Kupreichik, Viktor D251056 25.49
108 Suttles, Duncan251054 29.03
109 Malich, Burkhard G251052 38.09
110 Osnos, Viacheslav V250866 39.44
111 Weinstein, Norman250559 24.24
112 Georgadze, Tamaz V250357 27.14
113 Rashkovsky, Nukhim N250256 28.70
114 Sosonko, Gennadi250152 31.62
115 Shamkovich, Leonid A250163 51.58
116 Antoshin, Vladimir S249961 45.63
117 Keene, Raymond249850
118 Tringov, Georgy P249753 37.82
119 Bobotsov, Milko G249560 43.25
120 Tseitlin, Mark D249564 31.27
121 Marovic, Dražen249454 36.96
122 Sveshnikov, Evgeny E249460 24.88
123 Panchenko, Alexander N249471 21.24
124 Forintos, Gyözö V249351 39.42
125 Podgaets, Mikhail Y249157 27.44
126 O'Kelly de Galway, Albéric249066 63.62
127 Karaklajic, Nikola248865 48.85
128 Zilberstein, Valery I248560 31.72
129 Gerusel, Mathias248356 36.90
130 Antunac, Goran248160 29.71
131 Pribyl, Josef248051 27.22
132 Kraidman, Yair248056 42.16
133 Mišta, Ladislav247963 31.17
134 Schmidt, Wlodzimierz247850 31.72
135 Hamann, Svend247764 34.23
136 Sigurjónsson, Gudmundur247653 27.27
137 Hartston, William R247551 27.38
138 Popov, Luben247552 38.92
139 Raicevic, Vladimir247556 25.66
140 Torán Albero, Román247463 43.23
141 Ubilava, Elizbar E247465 24.34
142 Padevsky, Nikola B247455 41.59
143 Gurgenidze, Bukhuti I247362 41.13
144 Minic, Dragoljub247355 37.82
145 Moe, Mogens247263 30.80
146 Dueball, Juergen247256 29.76
147 Miles, Anthony J247256 19.69
148 Ghizdavu, Dumitru247257 25.61
149 Cvetkovic, Srdjan247166 28.84
150 Kuijpers, Franciscus Antonius247158
151 Mohrlok, Dieter247162
152 Timoshchenko, Gennady246861 25.68
153 Ree, Hans246849 30.29
154 Espig, Lutz246754 25.98
155 Barcza, Gedeon246666 63.36
156 Maric, Rudolf246672 47.63
157 Robatsch, Karl246656 46.21
158 Knezevic, Milorad246456 38.17
159 Johannsson, Ingi Randver246370
160 Soltis, Andrew E246258 27.59
161 Anikaev, Yury246257 26.51
162 Knaak, Rainer F246150 21.79
163 Byrne, Donald246169 44.55
164 Saidy, Anthony F246053 37.62
165 Ciocaltea, Victor246050 42.95
166 Kuindzhi, Alexander245967
167 Pilnik, Herman245861 60.97
168 Lukin, Andrei M245867 26.34
169 Schweber, Samuel245858 38.46
170 Zhuravliov, Valerij245760 36.05
171 Tatai, Stefano245750 36.77
172 Fedorov, Vladislav245573 21.44
173 Pomar Salamanca, Arturo245550 43.33
174 Brinck Claussen, Bjorn245475
175 Lengyel, Laszlo245469 30.47
176 Ornstein, Axel245355 22.69
177 Rukavina, Josip245255 32.09
178 Suba, Mihai245263 27.58
179 García Gonzáles, Guillermo245251 21.06
180 Barczay, Laszlo245157 38.85
181 Cosulich, Roberto245157
182 Rogoff, Kenneth S244957 21.77
183 Mednis, Edmar J244954 37.77
184 Zuckerman, Bernard244856 31.75
185 Cortlever, Nicolaas244873 59.55
186 Dueckstein, Andreas244870 47.41
187 Estrin, Yacov B244860 51.69
188 Zuidema, Coenraad244759
189 Botterill, George Steven244757
190 Lerner, Konstantin Z244770 24.84
191 Kaplan, Julio P244553 24.43
192 Stanciu, Traian244575 39.30
193 Bertok, Mario244475 45.33
194 Honfi, Karoly244453 44.18
195 Ghitescu, Theodor244453 40.93
196 Damjanovic, Mato244352 47.77
197 Kestler, Hans-Günter244360 35.05
198 Bogdanovic, Rajko244371 43.13
199 Pritchett, Craig William244359
200 Enklaar, Bertus F244250
201 Spiridonov, Nikola244263 36.84
202 Calvo Minguez, Ricardo244156 31.19
203 Rytov, Boris244170
204 Janoševic, Dragoljub244053 51.48
205 Vukic, Milan244060 31.37
206 Sofrevski, Jovan244067 39.37
207 Stean, Michael F243953 21.32
208 Mariotti, Sergio243755 28.39
209 Westerinen, Heikki MJ243751 30.68
210 Makarichev, Sergey Y243660 21.12
211 Hennings, Artur243655 34.47
212 Lengyel, Levente243452 41.55
213 Johannessen, Svein243460 37.20
214 Hase, Juan Carlos243160
215 Haag, Ervin243070 41.96
216 Rodriguez Vargas, Orestes242958 31.49
217 Capelan, Guenter242960 42.43
218 Cherepkov, Alexander V242872 54.17
219 Krnic, Zdenko242863 27.25
220 Rodriguez, Amador242866 18.31
221 Biyiasas, Peter242758 24.12
222 Faragó, Iván242753 28.75
223 Bisguier, Arthur B242655 45.23
224 Messing, Hrvoje242569 34.43
225 Rossetto, Héctor D242455 52.31
226 Plachetka, Jan242353 29.86
227 Szmetan, Jorge242156 24.60
228 Kozlov, Vladimir N242175 24.58
229 Jansson, Borje242159 32.80
230 Sanguinetti, Renato242071 58.69
231 Yanofsky, Daniel A242062 49.76
232 Kozma, Julius242073 45.58
233 Gilden, Lawrence C241963
234 Dely, Peter241955 40.49
235 Liebert, Heinz241951 38.60
236 Jiménez Zerquera, Eleazar241861 46.52
237 Kuprejanov, George241874
238 Ostojic, Predrag241854 36.85
239 McKay, Roderick M241863 22.88
240 Garcia, Raimundo241856 38.59
241 Peretz, Malkiel241769 31.56
242 Gaprindashvili, Nona241765 33.66
243 Minev, Nikolay N241658 43.97
244 Castro Rojas, Oscar Humberto241564 21.65
245 Balinas, Rosendo Carrean241371
246 Ingerslev, Age241276 41.22
247 Martz, William E241055
248 Chellstorp, Craig V241063
249 Langeweg, Kick240951 37.82
250 Scholl, Eddie C240858 30.20
251 Kolarov, Atanas S240874 40.83
252 Boey, Josef240762 40.62
253 Jakobsen, Ole240760 32.20
254 Ermenkov, Evgenij240660 25.26
255 Williams, Arthur Howard240655
256 Rubinetti, Jorge A240654 29.75
257 Bednarski, Jacek B240553 35.80
258 Corden, Martyn J240569
259 Andersen, Borge240567 40.78
260 Soos, Bela240572 44.82
261 Prameshuber, Aleksander240473
262 Czerniak, Moshe240461 64.90
263 Hug, Werner240452 22.31
264 Shabanov, Yury F240476 37.14
265 Kaldor, Avraham240369 27.61
266 Suess, Alois240370 31.56
267 Mestrovic, Zvonimir240164 30.20
268 Eising, Johannes240154 39.59
269 Christoph, Manfred240171 43.59
270 Ek, Hans240162 46.23
271 Garcia Martinez, Silvino240050 30.49
272 Clarke, Peter H240075
273 Cuasnicu, Oscar240067 32.19
274 Vadasz, Laszlo239954 26.92
275 Ungureanu, Emil239966 38.16
276 Peev, Peicho Chonev239957 34.75
277 Augustin, Josef239867 32.62
278 Kristiansen, Erling239863 38.04
279 Řgaard, Leif239657 22.98
280 Lehmann, Heinz Dr239657
281 Sinclair, Ian239672
282 Simic, Radoslav239571 26.56
283 Pytel, Krzysztof239550 29.63
284 Piasetski, Leon David239575
285 Garcia, Wilfredo239468 20.11
286 Porat, Yosef239472 65.57
287 Fuller, Maxwell L239468 29.92
288 Haygarth, Michael J239365
289 Cobo Arteaga, Eldis239358
290 Macles, Jacques239365 29.48
291 Kovacs, Laszlo M239263 36.24
292 Jankovec, Ivan239063 36.20
293 Friedman, Shmuel239070
294 Vogt, Lothar H238951 22.95
295 Lechtynsky, Jiri238955 27.10
296 Sapi, Laszlo238965 39.78
297 Grinberg, Ricardo238870 26.96
298 Myagmarsuren, Lhamsuren238865 36.87
299 Doda, Zbigniew238752 43.85
300 Cuéllar Gacharná, Miguel238664 58.12
301 Portisch, Ferenc238571 35.73
302 Bukal, Vladimir Sr238568 35.16
303 Hazai, Laszlo238561 21.55
304 Uddenfeldt, Dan238467 23.76
305 Ujtumen, Tudev238467 35.34
306 Stoica, Valentin238265 24.87
307 Foguelman, Alberto238073 51.22
308 Bohosjan, Sarkis238063 33.76
309 Filipowicz, Andrzej238052 36.63
310 Kupka, Slavoj238062 32.48
311 Penrose, Jonathan237959 41.23
312 Nicevski, Risto237954 29.51
313 Bohm, Hans237859 24.95
314 Bellin, Robert237857 22.50
315 Sydor, Andrzej237857 37.99
316 Kinnmark, Ove237861 30.02
317 Hartoch, Robert G237851
318 Karklins, Andrew237758 27.71
319 Deze, Anton237660
320 Adamski, Jan237651 31.14
321 Nunn, John D M237667 19.68
322 Rajkovic, Dusan237663 32.54
323 Partos, Charles237665 38.39
324 Kostro, Jerzy237654 37.93
325 Visier Segovia, Fernando237558 31.90
326 Belkadi, Ridha237570 49.68
327 Seret, Jean Luc237568
328 Tompa, Janos237261 27.67
329 Ivanovic, Božidar237271 28.35
330 Bordonada, Glenn237071
331 Pavlov, Mircea237061 37.30
332 Diesen, Mark C237064
333 van Scheltinga, Tjeerd D236857 60.82
334 Shashin, Alexsander A236775
335 Basman, Michael J236558 28.79
336 Kunsztowicz, Uwe236564 30.95
337 Neckar, Lubomir236464 24.41
338 Blatny, Frantisek236365 41.75
339 Paehtz, Thomas Sr236258 18.32
340 Markland, Peter R236256 23.72
341 Rantanen, Yrjo A236261 24.69
342 Toth, Bela236155 31.70
343 Vujacic, Borivoje236176 25.30
344 Bellon Lopez, Juan Manuel236153 24.65
345 Prandstetter, Eduard236066 26.04
346 Balcerowski, Witold236074 39.39
347 Webb, Simon236065 25.56
348 Mueller, Klaus Uwe236056
349 Schoeneberg, Manfred236065 28.48
350 Lundin, Erik236068 70.50
351 Zwaig, Arne236063
352 Puc, Stojan235969 53.73
353 Masic, Ljubomir235960 38.49
354 Zilberman, Nathan R235973 34.66
355 Saren, Ilkka J235873 34.62
356 Grabczewski, Romuald235857 42.89
357 Zichichi, Alvise235761 36.49
358 Estevez Morales, Guillermo235755
359 Braun, Gottfried235764 41.50
360 Kagan, Shimon235661 32.73
361 Cuartas, Carlos235663 34.38
362 Lanc, Alois235664 26.86
363 Rajna, George235666 27.87
364 Holm, Sejer235663 35.39
365 Van Riemsdijk, Herman C235664 26.35
366 Schaufelberger, Heinz235563 27.12
367 Spassov, Liuben235357 31.77
368 Sznapik, Aleksander235353 23.88
369 Gesos, Pavlos235365 29.60
370 Olsson, Ake235375 40.66
371 Roehrl, Karl235274 33.96
372 Gasic, Bozidar235267 37.22
373 Szymczak, Zbigniew235259 22.98
374 Polgar, Istvan235268 30.10
375 Ekenberg, Bengt235274
376 Wade, Robert Graham235158
377 Donoso Velasco, Pedro H235174 30.84
378 Rodriguez Gonzales, Jesus235064
379 Campos Lopez, Mario235059 31.63
380 Garcia, Horacio235065
381 Nikolic, Stanimir234965 39.92
382 Zinn, Lothar234957 36.78
383 Pelikán, Jorge234862 68.69
384 Bouaziz, Slim234766 24.71
385 Hurme, Harri M234768 29.58
386 Brond, Victor234766
387 Kolbak, Jens234776 29.90
388 Eley, Brian234664
389 Denker, Arnold S234672 60.85
390 Nordstrom, Felix234570 30.57
391 Onat, Ilhan234574 45.07
392 Moehring, Guenther234356 38.10
393 Pinal, Nelson Borges234363
394 Kristiansen, Jens234371 22.60
395 Whiteley, Andrew J234363 27.56
396 Fichtl, Jirí234256 53.87
397 Perkins, Alan H234271 25.78
398 Barle, Janez234069 22.78
399 Mihaljcisin, Mihajlo233975 41.85
400 Emma, Jaime J233960 36.95
401 Hohler, Peter233971 33.72
402 Banas, Jan233954 27.58
403 Baumbach, Friedrich233968 39.31
404 Vogel, Jaap233861 26.75
405 Formanek, Edward W233868 32.65
406 Akvist, Hakan233760 33.18
407 Wirthensohn, Heinz233664 23.66
408 Liljedahl, Lennart233659 27.34
409 Kaufman, Larry C233664 27.13
410 Quinones, Oscar Carillo233465
411 Cafferty, Bernard233464 40.51
412 Pietrusiak, Bogdan233260 41.46
413 Jacobsen, Bo233272 26.05
414 Poutiainen, Pertti233162
415 Debarnot, Roberto233155 27.40
416 Barreras, Alberto233064 23.74
417 Levy, David Neil Lawrence232957
418 Vilela, Jose Luis232968 21.78
419 Fridh, Anton232870 55.03
420 Camara, Helder232860 37.89
421 Bönsch, Uwe232858 16.21
422 Mestel, A Jonathan232756 17.80
423 Pintér, József232666 21.14
424 Kushnir, Alla232668
425 Romm, Meir232672 35.52
426 De la Vega, Hector232569 48.79
427 Ljungqvist, Lennart232568
428 Beyen, Roland232466 42.73
429 Boudy, Julio232465 23.55
430 Wahlbom, Magnus232371 29.63
431 Domnitz, Zadok232372 41.21
432 Palermo, Vicente232373 42.80
433 Cooper, John Grantley232366
434 Poch, Cesar Guillermo232263
435 Kluger, Guyla232263 60.95
436 Rath, Ulrik232171 28.02
437 Navarovszky, Laszlo232168 41.74
438 Horvath, Tamas232166 23.19
439 Van Baarle, C John232070 29.70
440 Helmertz, Per Inge231973
441 Maciejewski, Andrzej231959 23.48
442 Szilágyi, György231861 53.49
443 Van Geet, Dirk Daniel231874 42.83
444 Korensky, Valeri S231871
445 Janetschek, Karl231869 34.70
446 Meduna, Eduard231764 24.30
447 Ghinda, Mihail Viorel231776 25.43
448 Friedgood, David231671 28.47
449 Ligterink, Gert231661 25.12
450 Neukirch, Detlef231564 34.39
451 Naranja, Renato231555 34.27
452 Beil, Zdenek231468 21.37
453 Hutchings, Stuart J231461
454 Iskov, Gert231461 26.43
455 De Greif, Boris231364 44.88
456 Hindle, Owen M231274 34.80
457 Yepez Obando, Olavo231174
458 Lombard, Andre231054 24.28
459 Nagy, Ervin231067 29.42
460 Schinzel, Wladyslaw231062 31.61
461 Matera, Salvatore Joseph231067
462 Ludgate, Alan231075 29.33
463 Inkiov, Ventzislav230971 18.62
464 Menvielle Lacourrelle, Augusto230959 36.38
465 Tan Lian Ann230969
466 Blackstock, Lesly SF230974
467 Carvalho, Herbert Abreu230973 20.25
468 Thorbergsson, Freysteinn230974
469 Hansson, Dan230869 22.56
470 Reicher, Emanoil230773 44.76
471 Dieks, Roy G230564 18.91
472 Horner, Jeff230574 25.35
473 Casas, Fernando230568 48.36
474 Cibulka, Vladimir230462 33.16
475 Knox, Victor W230470 29.93
476 Todorcevic, Miodrag230467 34.14
477 Venalainen, Unto E230368 30.84
478 Skalkotas, Nikolaos230271 25.28
479 Lebredo, Gerardo230160 24.41
480 Silva, Fernando229962 24.41
481 Van den Berg, AMJ.229875
482 Zoltek, Tadeusz229862 37.33
483 Franzen, Jozef229763 28.90
484 Starck, Bodo229766 40.22
485 Cardoso, Radolfo Tan229753
486 Tuzovsky, Alexander I229769
487 Hoen, Ragnar229662 34.24
488 Medina García, Antonio A229353 55.25
489 Lukacs, Peter229362 24.48
490 Gross, Stefan229366 25.34
491 Bronstein, Luis229264 28.58
492 Ardiansyah, Haji229259 23.07
493 Nestler, Vincenzo229267
494 Leskovar, Mario229269 24.22
495 Juarez, Carlos Eleodoro229068 36.51
496 Bennett, Gerald H229071
497 Wagman, Stuart229069 55.63
498 Bachtiar, Arovah228963 40.77
499 Franklin, Michael J228872 43.91
500 Jamieson, Peter Michael228868

These ratings, calculated as of December 31, 1974, incorporate all games (against rated opponents) played in the time between January 1, 1974 and December 31, 1974, along with the ratings that were already calculated as of December 31, 1973. 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 December 31, 1974. This represents the player's estimated strength on January 1, 1975.

+/- 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 January 1, 1975. The +/- value represents the standard deviation of that estimate; the player's true strength on January 1, 1975 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 January 1, 1975. 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 December 31, 1974. 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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