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Top 10 active players as of February 29, 1976


Top 500 active players as of February 29, 1976

  #  

Player Rating +/- Best? 75%? Age
1 Karpov, Anatoly E27575137.0% #524.77
2 Polugaevsky, Lev A27125110.1% #1441.27
3 Petrosian, Tigran V2704507.3% #1646.70
4 Korchnoi, Viktor L2704507.3% #1644.93
5 Spassky, Boris V2699536.7% #1839.08
6 Geller, Efim P2679533.4% #2550.98
7 Tseshkovsky, Vitaly V2671522.4% #2931.43
8 Portisch, Lajos2666501.6% #3138.89
9 Vaganian, Rafael A2664521.7% #3224.37
10 Tal, Mikhail2663491.2% #3239.30
11 Kuzmin, Gennady P2658551.7% #3630.11
12 Ljubojevic, Ljubomir2657491.0% #3525.32
13 Hübner, Robert2647551.0% #4227.31
14 Smyslov, Vassily V2646530.9% #4254.92
15 Romanishin, Oleg M2644530.8% #4424.13
16 Larsen, Bent2643530.7% #4440.98
17 Krogius, Nikolay V2643743.2% #5345.60
18 Hort, Vlastimil2642480.3% #4332.13
19 Mecking, Henrique2639591.1% #4924.10
20 Gufeld, Eduard E2636540.6% #4939.94
21 Vasiukov, Evgeny A2635520.4% #4842.98
22 Gipslis, Aivars2634580.9% #5239.06
23 Gulko, Boris F2629530.4% #5329.05
24 Gligoric, Svetozar2628500.2% #5253.07
25 Kudriashov, Anatoly A2626731.8% #6433.86
26 Balashov, Yury S2624520.2% #5626.96
27 Smejkal, Jan2623500.2% #5629.93
28 Savon, Vladimir A2622510.2% #5735.42
29 Lein, Anatoly2621731.5% #6844.91
30 Browne, Walter S2617510.1% #6027.13
31 Andersson, Ulf2615490.1% #6024.67
32 Bronstein, David I2611510.1% #6452.03
33 Furman, Semen A2609550.2% #6855.24
34 Liberzon, Vladimir M2608590.2% #7138.93
35 Olafsson, Fridrik2606520.1% #6941.09
36 Beliavsky, Alexander G2604530.1% #7122.20
37 Karasev, Vladimir I2601620.3% #7837.70
38 Pfleger, Helmut2600570.1% #7632.56
39 Tukmakov, Vladimir B2600510.1% #7329.95
40 Kholmov, Ratmir D2600530.1% #7450.79
41 Ribli, Zoltán2599510.1% #7524.48
42 Dvoretsky, Mark I2597530.1% #7728.22
43 Evans, Larry M2593670.3% #8743.93
44 Panno, Oscar R2591550.1% #8240.94
45 Matanovic, Aleksandar2590590.1% #8545.77
46 Chekhov, Valery A2586620.2% #9020.26
47 Taimanov, Mark E258551 #8550.06
48 Sanguinetti, Renato2585640.2% #9259.85
49 Gheorghiu, Florin258252 #8831.89
50 Kavalek, Lubomir258251 #8832.55
51 Unzicker, Wolfgang257958 #9550.67
52 Suetin, Alexey S257955 #9349.29
53 Dzindzichashvili, Roman Y2575710.3% #10631.81
54 Nikolac, Juraj2574630.1% #10143.85
55 Ivanov, Igor V2572640.1% #10329.14
56 Byrne, Robert E257256 #9847.85
57 Uhlmann, Wolfgang257249 #9540.91
58 Osnos, Viacheslav V2571730.2% #11040.60
59 Palatnik, Semen A2571640.1% #10525.92
60 Pachmann, Ludek2570630.1% #10551.80
61 Kurajica, Bojan257056 #10128.29
62 Velimirovic, Dragoljub256852 #10033.80
63 Schmid, Lothar M2567640.1% #10847.80
64 Alburt, Lev O256758 #10530.52
65 Parma, Bruno256552 #10334.16
66 Bagirov, Vladimir K2561650.1% #11539.54
67 Averbakh, Yury L255959 #11354.06
68 Reshevsky, Samuel H255959 #11264.26
69 Timman, Jan H255850 #10724.21
70 Ivkov, Borislav255851 #10942.30
71 Najdorf, Miguel255758 #11465.87
72 Szabó, László255754 #11158.94
73 Nei, Iivo255564 #11844.33
74 Zaitsev, Igor A255563 #11837.76
75 Kapengut, Albert Z2555700.1% #12231.65
76 Timoshchenko, Gennady255261 #11926.83
77 Sanguinetti, Raúl C255061 #12143.07
78 Radulov, Ivan254955 #11837.14
79 Dorfman, Iosif D254960 #12223.83
80 Averkin, Orest N254767 #12832.01
81 Platonov, Igor V2547690.1% #12942.11
82 Weinstein, Norman254657 #12225.40
83 Matulovic, Milan254551 #11940.72
84 Sosonko, Gennadi254551 #12032.78
85 Lutikov, Anatoly S254358 #12643.06
86 Razuvaev, Yury S254356 #12530.38
87 Grefe, John A254359 #12628.48
88 Miles, Anthony J254151 #12420.84
89 Lombardy, William J253756 #12938.23
90 Quinteros, Miguel A253552 #12928.17
91 Hecht, Hans-Joachim253554 #13137.08
92 Klovans, Janis253454 #13140.88
93 Kupreichik, Viktor D253359 #13626.65
94 Adorján, András253354 #13225.91
95 Bukic, Enver253260 #13738.24
96 Sax, Gyula253151 #13124.70
97 Malich, Burkhard G253156 #13539.25
98 Díez del Corral, Jesús253068 #14342.89
99 Shamkovich, Leonid A252961 #13952.74
100 Commons, Kim S252859 #13924.60
101 Tseitlin, Mark D252867 32.43
102 Georgadze, Tamaz V252765 28.30
103 Mukhin, Mikhail A252570 28.03
104 Csom, István252351 35.74
105 Rashkovsky, Nukhim N252260 29.86
106 Tringov, Georgy P252256 38.97
107 Tarjan, James E252054 24.02
108 Sigurjónsson, Gudmundur251952 28.43
109 Filip, Miroslav251967 47.34
110 Kovacevic, Vladimir251861 33.92
111 Hulak, Krunoslav251663 24.76
112 Kirov Ivanov, Nino251356 30.47
113 Jansa, Vlastimil251349 33.26
114 Donner, Johannes H251153 48.65
115 Torre, Eugenio251156 24.32
116 Sveshnikov, Evgeny E251063 26.05
117 Gurgenidze, Bukhuti I250764 42.29
118 Westerinen, Heikki MJ250552 31.83
119 Antoshin, Vladimir S250574 46.79
120 Panchenko, Alexander N250467 22.40
121 Marovic, Dražen250257 38.12
122 Vukcevich, Milan R250273
123 Rogoff, Kenneth S250256 22.93
124 Suttles, Duncan250159 30.19
125 García Gonzáles, Guillermo250154 22.22
126 Makarichev, Sergey Y250060 22.28
127 Rodriguez, Amador250060 19.47
128 Podgaets, Mikhail Y249861 28.60
129 Vitolinš, Alvis249872 29.70
130 Planinc, Albin249751 31.86
131 Benko, Pal C249552 47.62
132 Keene, Raymond249251
133 Knezevic, Milorad249157 39.33
134 Raicevic, Vladimir249155 26.82
135 Pribyl, Josef248954 28.38
136 Honfi, Karoly248853 45.34
137 Grigorian, Karen A248755 28.48
138 Rytov, Boris248767
139 Kaplan, Julio P248655 25.59
140 Maric, Rudolf248467 48.79
141 Karner, Hillar248365 40.59
142 Kestler, Hans-Günter248363 36.21
143 Forintos, Gyözö V248353 40.58
144 Knaak, Rainer F248250 22.95
145 Kraidman, Yair248265 43.33
146 Katalymov, Boris N248175
147 Bilek, István248154 43.55
148 Ciocaltea, Victor248154 44.12
149 Schmidt, Wlodzimierz248049 32.88
150 Hartston, William R248051 28.55
151 Espig, Lutz248056 27.15
152 Petrosian, Arshak B247963 22.20
153 Rajkovic, Dusan247957 33.70
154 Rodriguez, Ruben247860 29.23
155 Anikaev, Yury247766 27.67
156 Robatsch, Karl247760 47.37
157 Karaklajic, Nikola247670 50.01
158 Ree, Hans247651 31.45
159 Zhuravliov, Valerij247570 37.22
160 Vukic, Milan247458 32.53
161 Dueball, Juergen247459 30.91
162 Mohrlok, Dieter247473
163 Ubilava, Elizbar E247372 25.51
164 Ciric, Dragoljub M247366 40.30
165 Faragó, Iván247153 29.90
166 Zilberstein, Valery I247071 32.87
167 Schweber, Samuel247058 39.62
168 Barle, Janez246958 23.93
169 Soltis, Andrew E246870 28.75
170 Ghizdavu, Dumitru246863 26.77
171 Padevsky, Nikola B246755 42.75
172 Castro Rojas, Oscar Humberto246763 22.81
173 Saidy, Anthony F246663 38.79
174 Zuckerman, Bernard246663 32.91
175 Stean, Michael F246652 22.48
176 Moe, Mogens246572 31.95
177 Torán Albero, Román246470 44.39
178 Radev, Nikolai246365 37.19
179 Tatai, Stefano246356 37.93
180 Suba, Mihai246368 28.74
181 Ostojic, Predrag246256 38.02
182 Mnatsakanian, Eduard A246067 37.23
183 Barczay, Laszlo245954 40.02
184 Balinas, Rosendo Carrean245968
185 Bednarski, Jacek B245955 36.96
186 Zuidema, Coenraad245771
187 Doroshkievich, Vladimir K245663 38.17
188 Lukin, Andrei M245575 27.50
189 Damjanovic, Mato245555 48.93
190 Barcza, Gedeon245466 64.52
191 Christiansen, Larry M245461 19.67
192 Yanofsky, Daniel A245464 50.92
193 Calvo Minguez, Ricardo245363 32.35
194 Gaprindashvili, Nona245263 34.82
195 Mariotti, Sergio245254 29.55
196 Martz, William E245258
197 Plachetka, Jan245152 31.03
198 Hamann, Svend245062 35.39
199 Garcia Martinez, Silvino245051 31.65
200 Szmetan, Jorge245056 25.76
201 Spiridonov, Nikola244958 38.00
202 Řgaard, Leif244956 24.15
203 Nemet, Ivan244971 32.87
204 Augustin, Josef244658 33.78
205 Estrin, Yacov B244675 52.85
206 Brasket, Curt Justin244574
207 Ghitescu, Theodor244459 42.10
208 Minic, Dragoljub244357 38.98
209 Janoševic, Dragoljub244255 52.64
210 Sahovic, Dragutin244172 35.56
211 Capelan, Guenter244175 43.59
212 Hennings, Artur244165 35.63
213 Spassov, Liuben244058 32.93
214 Peters, John A244064 25.05
215 Rukavina, Josip243959 33.25
216 Bisguier, Arthur B243953 46.39
217 Ornstein, Axel243852 23.84
218 Haag, Ervin243862 43.13
219 Jansson, Borje243761 33.96
220 Kuijpers, Franciscus Antonius243658
221 Vogt, Lothar H243652 24.12
222 Cosulich, Roberto243570
223 Popov, Luben243554 40.09
224 Poutiainen, Pertti243557
225 Mednis, Edmar J243456 38.93
226 Vranesic, Zvonko243473 37.40
227 Garcia, Raimundo243357 39.76
228 Prandstetter, Eduard243363 27.20
229 Pritchett, Craig William243358
230 Lengyel, Levente243355 42.71
231 Gerusel, Mathias243356 38.06
232 Pilnik, Herman243271 62.14
233 Grinberg, Ricardo243061 28.12
234 Biyiasas, Peter243062 25.28
235 Pomar Salamanca, Arturo242954 44.49
236 Doda, Zbigniew242853 45.02
237 Minev, Nikolay N242768 45.14
238 Matera, Salvatore Joseph242562
239 Jiménez Zerquera, Eleazar242570 47.68
240 Langeweg, Kick242553 38.97
241 Bertok, Mario242571 46.49
242 Musil, Vojko242564 30.53
243 Rodriguez Vargas, Orestes242360 32.65
244 Liebert, Heinz242354 39.76
245 Deze, Anton241962
246 Boey, Josef241869 41.79
247 Nunn, John D M241754 20.84
248 Webb, Simon241757 26.72
249 Scholl, Eddie C241670 31.37
250 Dely, Peter241657 41.65
251 Andersen, Borge241672 41.94
252 Kozlov, Vladimir N241571 25.74
253 Schneider, Lars Ake241559
254 Flesch, Janos241462 42.41
255 Buljovcic, Ivan241462 39.17
256 Bohm, Hans241454 26.12
257 Hase, Juan Carlos241460
258 Eising, Johannes241359 40.75
259 Brond, Victor241259
260 Ermenkov, Evgenij241258 26.42
261 Lechtynsky, Jiri241156 28.26
262 Ligterink, Gert240957 26.28
263 Bellon Lopez, Juan Manuel240956 25.81
264 Hug, Werner240856 23.47
265 Pintér, József240759 22.30
266 Portisch, Ferenc240760 36.88
267 Rubinetti, Jorge A240654 30.91
268 Chellstorp, Craig V240661
269 Zwaig, Arne240661
270 Schiffer, Karl Josef240573
271 Williams, Arthur Howard240561
272 McKay, Roderick M240565 24.05
273 Clarke, Peter H240468
274 Partos, Charles240368 39.55
275 Meduna, Eduard240263 25.47
276 Jakobsen, Ole240272 33.36
277 Johannessen, Svein240166 38.37
278 Bronstein, Luis240158 29.74
279 Enklaar, Bertus F240153
280 Hazai, Laszlo240168 22.71
281 Zichichi, Alvise240066 37.65
282 Goodman, David SC240073
283 Rossetto, Héctor D240057 53.47
284 Rath, Ulrik239972 29.18
285 Hernandez, Roman239854 26.27
286 Botterill, George Steven239856
287 Cobo Arteaga, Eldis239862
288 Haygarth, Michael J239766
289 Penrose, Jonathan239762 42.39
290 Jamroz, Zbigniew239773 41.72
291 Adamski, Jan239652 32.30
292 Szekely, Peter239664 21.06
293 Vadasz, Laszlo239655 28.09
294 Bellin, Robert239556 23.66
295 Pytel, Krzysztof239554 30.79
296 Hartoch, Robert G239454
297 Mestrovic, Zvonimir239370 31.37
298 Myagmarsuren, Lhamsuren239374 38.03
299 Sydor, Andrzej239158 39.15
300 Inkiov, Ventzislav239168 19.78
301 Cuasnicu, Oscar239058 33.35
302 Van Riemsdijk, Herman C239062 27.51
303 Diesen, Mark C238864
304 Seret, Jean Luc238873
305 Lehmann, Heinz Dr238763
306 Uddenfeldt, Dan238766 24.91
307 Ungureanu, Emil238774 39.33
308 Neckar, Lubomir238558 25.57
309 Kovacs, Laszlo M238559 37.40
310 van Scheltinga, Tjeerd D238569 61.97
311 Macles, Jacques238572 30.64
312 Nicevski, Risto238460 30.67
313 Martinovic, Slobodan238273 30.59
314 Denker, Arnold S238268 62.02
315 Horner, Jeff238167 26.51
316 Filipowicz, Andrzej238058 37.79
317 Marjanovic, Slavoljub238072 21.15
318 Czerniak, Moshe237967 66.07
319 Dake, Arthur William237969 65.88
320 Vladimirov, Evgeny Y237975 19.11
321 Evans, Larry D237871
322 Pokojowczyk, Jerzy237766 27.02
323 Pavlov, Mircea237675 38.46
324 Littlewood, John Eric237669
325 Karklins, Andrew237668 28.87
326 Visier Segovia, Fernando237659 33.07
327 Sznapik, Aleksander237654 25.05
328 Masic, Ljubomir237573 39.65
329 Popov, Nikolay237570
330 Mestel, A Jonathan237455 18.95
331 Peev, Peicho Chonev237461 35.90
332 De la Vega, Hector237362 49.95
333 Basman, Michael J237261 29.95
334 Gesos, Pavlos237265 30.76
335 Moehring, Guenther237153 39.26
336 Sinclair, Ian237073
337 Van Wijgerden, Cornelis237069 25.77
338 Kupka, Slavoj236972 33.64
339 Fuller, Maxwell L236962 31.09
340 Markland, Peter R236763 24.87
341 Rajna, George236667 29.04
342 Lukacs, Peter236462 25.64
343 Perkins, Alan H236468 26.94
344 Kozma, Julius236261 46.74
345 Gasic, Bozidar236161 38.38
346 Cuartas, Carlos236167 35.54
347 Boudy, Julio236168 24.72
348 Kostro, Jerzy236059 39.09
349 Goldenberg, Richard236072 28.27
350 Emma, Jaime J236057 38.12
351 Rodriguez Gonzales, Jesus235969
352 Kagan, Shimon235971 33.89
353 Butnorius, Algimantas235868 29.27
354 Kinnmark, Ove235658 31.18
355 Wade, Robert Graham235563
356 Campos Lopez, Mario235569 32.79
357 Jacobsen, Bo235472 27.21
358 Rocha, Antonio235366 31.71
359 Zinn, Lothar235268 37.94
360 Vaisman, Volodia235275 38.18
361 Foguelman, Alberto235268 52.38
362 Bouaziz, Slim235173 25.86
363 Banas, Jan235066 28.74
364 Iskov, Gert234962 27.59
365 Terres Trois, Francisco234976
366 Toth, Bela234865 32.85
367 Pinal, Nelson Borges234871
368 Eslon, Jaan234767 23.98
369 Borngaesser, Rene234668 24.44
370 Nikolic, Stanimir234674 41.09
371 Ostermeyer, Peter234568 32.38
372 Alexandria, Nana234566 26.38
373 Rantanen, Yrjo A234563 25.84
374 Quinones, Oscar Carillo234474
375 Lanc, Alois234459 28.03
376 Ek, Hans234459 47.40
377 Eley, Brian234367
378 Szilágyi, György234361 54.65
379 Bernat, Miguel234273 18.45
380 Holm, Sejer234266 36.55
381 Ekstroem, Roland234276 19.77
382 Fichtl, Jirí234167 55.04
383 Trapl, Jindrich234165 33.92
384 Hindle, Owen M234166 35.95
385 Seidler, Aldo234059
386 Anelli, Antonio234071 31.80
387 Pelikán, Jorge233972 69.84
388 Akvist, Hakan233860 34.34
389 Spacek, Petr233764 22.01
390 Vogel, Jaap233672 27.91
391 Bönsch, Uwe233656 17.37
392 Velikov, Petar233573 24.91
393 Knox, Victor W233567 31.10
394 Garcia, Wilfredo233569 21.27
395 Maciejewski, Andrzej233461 24.64
396 Dieks, Roy G233465 20.08
397 Lombard, Andre233358 25.44
398 Pesantes Carbajal, Carlos233370
399 Camara, Helder233371 39.06
400 Schaufelberger, Heinz233364 28.28
401 Onat, Ilhan233269 46.23
402 Kolbak, Jens233272 31.07
403 Barreras, Alberto233274 24.89
404 Whiteley, Andrew J233266 28.72
405 Wirthensohn, Heinz233267 24.82
406 Bordonada, Glenn233276
407 Beyen, Roland233173 43.89
408 Pernishki, Luben233173 44.70
409 Levy, David Neil Lawrence233162
410 Djuric, Stefan233073 20.59
411 Ludgate, Alan233074 30.49
412 Cardoso, Radolfo Tan232858
413 Silva, Fernando232868 25.57
414 Naranja, Renato232864 35.43
415 Grabczewski, Romuald232759 44.06
416 Urzica, Aurel232772 23.30
417 Skalkotas, Nikolaos232674 26.44
418 Petran, Pal232560 29.45
419 Starck, Bodo232572 41.38
420 Garcia Palermo, Carlos232560 22.24
421 Menvielle Lacourrelle, Augusto232475 37.55
422 Liljedahl, Lennart232463 28.51
423 Szymczak, Zbigniew232361 24.15
424 Manasterski, Lutoslaw232263 39.05
425 Janetschek, Karl232271 35.86
426 Donchenko, Anatoly G232175 35.49
427 Hutchings, Stuart J232163
428 Mueller, Klaus Uwe232058
429 Corden, Martyn J232061
430 Gofshtein, Leonid D231968 22.85
431 Fernandez, Juan C231864 24.57
432 Kristiansen, Erling231859 39.20
433 Schinzel, Wladyslaw231757 32.77
434 Bernard, Ryszard231762 31.52
435 Estevez Morales, Guillermo231757
436 Tompa, Janos231759 28.83
437 Kushnir, Alla231663
438 Jankovec, Ivan231663 37.37
439 Osterman, Rudolf231462 29.61
440 Horvath, Tamas231374 24.35
441 Speelman, Jonathan S231364 19.41
442 Hesse, Peter231166 31.42
443 Cafferty, Bernard231159 41.67
444 De Greif, Boris231166 46.04
445 Link, Hugo E230972 22.45
446 Gruenberg, Hans Ulrich230655 20.14
447 Berry, Jonathan230671 22.47
448 Gunev, Zlatan230573 30.58
449 Niklasson, Christer230364 23.15
450 Kaiszauri, Konstanty230267 23.34
451 Ardiansyah, Haji230270 24.23
452 Wibe, Terje230271 28.40
453 Dietze, Wolfgang230262 25.69
454 Sikora Lerch, Jan230164
455 Skrobek, Ryszard230076 24.65
456 Debarnot, Roberto230059 28.56
457 Lebredo, Gerardo230063 25.57
458 Medina García, Antonio A230062 56.41
459 Ujtelky, Maximilián229973 60.85
460 Helmertz, Per Inge229869
461 Venalainen, Unto E229776 31.99
462 Gereben, Ernö229762 68.70
463 Baumbach, Friedrich229764 40.47
464 Diaz, Joaquin C229661 27.65
465 De Veauce, Louis229666
466 Kuligowski, Adam229567 20.18
467 Nowak, Ignacy229364 27.13
468 Tisdall, Jonathan D229373 17.51
469 Hoen, Ragnar229269 35.40
470 Bielczyk, Jacek229256 23.02
471 Marszalek, Rafal229271 35.25
472 Novak, Ivan229268 33.09
473 Prochownik, Franciszek228974 41.28
474 Cooper, John Grantley228973
475 Timman, Ton228873 27.66
476 Day, Lawrence A228771 27.08
477 Sanz Alonso, Francisco Javier228767
478 Ervin, Roy C228668 25.15
479 Bazan, Osvaldo228572 41.37
480 Gulbrandsen, Arne Vinje228569
481 Garcia Conesa, Gregorio228573 41.08
482 Segal, Alexandru Sorin228575 28.40
483 Boersma, Paulus A228367 27.62
484 Kruszynski, Wlodzimierz228168 24.70
485 Paehtz, Thomas Sr228160 19.48
486 Savic, Andre228173
487 Bengtsson, Bo228075 28.50
488 Vinje Gulbrandsen, Arne227975
489 Gutman, Lev227872 30.42
490 Thal, Olaf227873 40.21
491 Petran, Peter227764 21.51
492 Perecz, Laszlo227672 31.68
493 Moen, Ole Christian227567
494 Kristinsson, Jon227474 33.70
495 Dobosz, Henryk227364 22.94
496 Trois, Francisco RT227263
497 Zoltek, Tadeusz227166 38.49
498 Drelinkiewicz, Tadeusz227169
499 Clemens, Christian227073 35.56
500 Van der Vliet, Fredrik227067

These ratings, calculated as of February 29, 1976, incorporate all games (against rated opponents) played in the time between March 1, 1975 and February 29, 1976, along with the ratings that were already calculated as of February 28, 1975. 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, 1976. This represents the player's estimated strength on March 1, 1976.

+/- 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, 1976. The +/- value represents the standard deviation of that estimate; the player's true strength on March 1, 1976 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, 1976. 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, 1976. 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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