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Top 10 active players as of April 30, 1976


Top 500 active players as of April 30, 1976

  #  

Player Rating +/- Best? 75%? Age
1 Karpov, Anatoly E27695044.2% #424.93
2 Korchnoi, Viktor L27195010.5% #1245.10
3 Polugaevsky, Lev A2713519.2% #1441.44
4 Petrosian, Tigran V2702505.7% #1746.86
5 Spassky, Boris V2701536.3% #1839.25
6 Geller, Efim P2677522.2% #2651.16
7 Tal, Mikhail2669491.4% #3039.47
8 Tseshkovsky, Vitaly V2665511.4% #3131.60
9 Ljubojevic, Ljubomir2660490.9% #3425.49
10 Portisch, Lajos2658490.8% #3539.07
11 Kuzmin, Gennady P2656551.3% #3830.28
12 Hübner, Robert2651530.8% #4027.48
13 Gulko, Boris F2650530.7% #4129.22
14 Smyslov, Vassily V2649530.7% #4155.10
15 Mecking, Henrique2646591.2% #4524.27
16 Hort, Vlastimil2645480.4% #4232.30
17 Krogius, Nikolay V2643752.9% #5545.77
18 Larsen, Bent2642520.5% #4541.15
19 Vaganian, Rafael A2641510.4% #4524.54
20 Gufeld, Eduard E2636540.5% #4940.11
21 Romanishin, Oleg M2631520.3% #5124.30
22 Gligoric, Svetozar2630500.3% #5253.24
23 Lein, Anatoly2629731.7% #6345.09
24 Smejkal, Jan2628500.2% #5330.11
25 Gipslis, Aivars2626580.4% #5839.23
26 Balashov, Yury S2625520.2% #5627.13
27 Savon, Vladimir A2625510.2% #5635.59
28 Browne, Walter S2620510.1% #5927.30
29 Vasiukov, Evgeny A2619520.1% #6043.15
30 Andersson, Ulf2619490.1% #5924.84
31 Liberzon, Vladimir M2614570.3% #6639.10
32 Kudriashov, Anatoly A2614751.2% #7634.04
33 Furman, Semen A2610550.2% #6855.41
34 Bronstein, David I2610510.1% #6652.20
35 Ribli, Zoltán2609520.1% #6724.65
36 Olafsson, Fridrik2609530.1% #6841.26
37 Beliavsky, Alexander G2605530.1% #7022.37
38 Kholmov, Ratmir D2605530.1% #7150.96
39 Tukmakov, Vladimir B260351 #7230.12
40 Karasev, Vladimir I2603620.2% #7737.86
41 Dvoretsky, Mark I259753 #7828.39
42 Evans, Larry M2596670.3% #8644.11
43 Pfleger, Helmut2596590.1% #8132.73
44 Uhlmann, Wolfgang259549 #7741.09
45 Panno, Oscar R2591560.1% #8441.12
46 Chekhov, Valery A2590620.2% #8820.43
47 Taimanov, Mark E258851 #8450.23
48 Gheorghiu, Florin258551 #8632.07
49 Kavalek, Lubomir258451 #8732.72
50 Byrne, Robert E258453 #8848.03
51 Matanovic, Aleksandar258456 #9045.93
52 Unzicker, Wolfgang258458 #9150.84
53 Timman, Jan H258149 #8824.38
54 Palatnik, Semen A2581650.1% #9726.09
55 Suetin, Alexey S258055 #9249.46
56 Dzindzichashvili, Roman Y2579720.2% #10331.98
57 Nikolac, Juraj2578630.1% #10044.02
58 Kurajica, Bojan257754 #9428.46
59 Ivanov, Igor V2575640.1% #10229.31
60 Pachmann, Ludek2572630.1% #10351.96
61 Osnos, Viacheslav V2568740.2% #11440.77
62 Szabó, László256654 #10459.11
63 Parma, Bruno256553 #10434.33
64 Bagirov, Vladimir K2565650.1% #11239.71
65 Schmid, Lothar M2565640.1% #11147.97
66 Alburt, Lev O256358 #11030.69
67 Velimirovic, Dragoljub256051 #10833.96
68 Zaitsev, Igor A256063 #11537.92
69 Averbakh, Yury L255959 #11454.23
70 Dorfman, Iosif D255659 #11523.99
71 Nei, Iivo255564 #12044.50
72 Ivkov, Borislav255451 #11342.47
73 Kapengut, Albert Z2554700.1% #12431.82
74 Najdorf, Miguel255359 #11866.04
75 Radulov, Ivan255355 #11637.31
76 Sanguinetti, Raúl C255261 #12243.24
77 Matulovic, Milan255252 #11640.88
78 Tseitlin, Mark D255067 #12632.60
79 Razuvaev, Yury S255056 #12030.55
80 Weinstein, Norman254957 #12125.57
81 Lutikov, Anatoly S254859 #12343.23
82 Sosonko, Gennadi254751 #11932.94
83 Averkin, Orest N254667 #13032.18
84 Adorján, András254652 #12126.08
85 Sax, Gyula254551 #12124.86
86 Grefe, John A254459 #12728.65
87 Miles, Anthony J254251 #12321.02
88 Tarjan, James E254052 #12724.19
89 Hecht, Hans-Joachim253955 #12837.25
90 Bukic, Enver253860 #13338.41
91 Lombardy, William J253856 #13138.40
92 Malich, Burkhard G253856 #13039.42
93 Sigurjónsson, Gudmundur253751 #12828.60
94 Timoshchenko, Gennady253661 #13527.01
95 Quinteros, Miguel A253652 #13028.34
96 Klovans, Janis253254 #13441.06
97 Platonov, Igor V2532710.1% #14442.28
98 Mukhin, Mikhail A253070 #14428.20
99 Csom, István252951 #13535.90
100 Díez del Corral, Jesús252968 #14543.07
101 Georgadze, Tamaz V252865 28.47
102 Commons, Kim S252659 24.77
103 Kupreichik, Viktor D252559 26.82
104 Hulak, Krunoslav252362 24.92
105 Kovacevic, Vladimir252361 34.09
106 Tringov, Georgy P252357 39.15
107 Torre, Eugenio252056 24.49
108 Filip, Miroslav251967 47.51
109 Reshevsky, Samuel H251955 64.43
110 Kirov Ivanov, Nino251856 30.64
111 Jansa, Vlastimil251749 33.43
112 Rashkovsky, Nukhim N251759 30.03
113 Donner, Johannes H251453 48.82
114 Sveshnikov, Evgeny E251163 26.22
115 Shamkovich, Leonid A251162 52.91
116 Panchenko, Alexander N251067 22.57
117 Westerinen, Heikki MJ250852 32.01
118 Rogoff, Kenneth S250754 23.11
119 Suttles, Duncan250559 30.36
120 Sanguinetti, Renato250564 60.02
121 Vitolinš, Alvis250272 29.87
122 Makarichev, Sergey Y250160 22.45
123 Kraidman, Yair250160 43.50
124 García Gonzáles, Guillermo250054 22.39
125 Benko, Pal C249952 47.79
126 Honfi, Karoly249854 45.51
127 Maric, Rudolf249767 48.96
128 Pribyl, Josef249654 28.55
129 Planinc, Albin249651 32.03
130 Knezevic, Milorad249557 39.50
131 Keene, Raymond249351
132 Gurgenidze, Bukhuti I249262 42.46
133 Rodriguez, Amador249261 19.64
134 Podgaets, Mikhail Y249161 28.77
135 Forintos, Gyözö V249153 40.75
136 Rytov, Boris249167
137 Hartston, William R248951 28.72
138 Raicevic, Vladimir248955 26.99
139 Vukcevich, Milan R248973
140 Grigorian, Karen A248955 28.65
141 Bilek, István248954 43.72
142 Marovic, Dražen248855 38.29
143 Karner, Hillar248765 40.76
144 Kaplan, Julio P248755 25.76
145 Rajkovic, Dusan248657 33.86
146 Kestler, Hans-Günter248563 36.38
147 Katalymov, Boris N248375
148 Mohrlok, Dieter248273
149 Doroshkievich, Vladimir K248161 38.34
150 Vukic, Milan248158 32.70
151 Petrosian, Arshak B248063 22.37
152 Ciocaltea, Victor248054 44.29
153 Ree, Hans247951 31.62
154 Schmidt, Wlodzimierz247950 33.05
155 Ubilava, Elizbar E247972 25.68
156 Knaak, Rainer F247851 23.12
157 Castro Rojas, Oscar Humberto247863 22.97
158 Faragó, Iván247852 30.08
159 Espig, Lutz247756 27.32
160 Robatsch, Karl247760 47.54
161 Schweber, Samuel247558 39.79
162 Dueball, Juergen247559 31.09
163 Karaklajic, Nikola247470 50.18
164 Padevsky, Nikola B247455 42.91
165 Zilberstein, Valery I247371 33.05
166 Radev, Nikolai247165 37.36
167 Zhuravliov, Valerij247170 37.39
168 Stean, Michael F247152 22.65
169 Ciric, Dragoljub M247067 40.47
170 Soltis, Andrew E247070 28.92
171 Ghizdavu, Dumitru247063 26.94
172 Barczay, Laszlo246954 40.19
173 Torán Albero, Román246871 44.56
174 Damjanovic, Mato246856 49.10
175 Tatai, Stefano246755 38.10
176 Bleiman, Yaacov246765 28.64
177 Saidy, Anthony F246764 38.95
178 Ostojic, Predrag246656 38.19
179 Barle, Janez246559 24.11
180 Rodriguez, Ruben246560 29.40
181 Zuckerman, Bernard246463 33.08
182 Zuidema, Coenraad246371
183 Bednarski, Jacek B246355 37.13
184 Moe, Mogens246372 32.13
185 Spassov, Liuben246259 33.11
186 Mnatsakanian, Eduard A246167 37.40
187 Balinas, Rosendo Carrean246068
188 Suba, Mihai245968 28.91
189 Gaprindashvili, Nona245763 34.98
190 Calvo Minguez, Ricardo245663 32.52
191 Plachetka, Jan245652 31.20
192 Hamann, Svend245662 35.56
193 Christiansen, Larry M245561 19.84
194 Lukin, Andrei M245575 27.67
195 Yanofsky, Daniel A245564 51.09
196 Řgaard, Leif245556 24.32
197 Estrin, Yacov B245475 53.03
198 Martz, William E245358
199 Garcia Martinez, Silvino245351 31.82
200 Mariotti, Sergio245154 29.72
201 Sofrevski, Jovan245162 40.70
202 Nunn, John D M245155 21.01
203 Spiridonov, Nikola244857 38.17
204 Barcza, Gedeon244867 64.69
205 Augustin, Josef244758 33.94
206 Nemet, Ivan244771 33.04
207 Ghitescu, Theodor244759 42.27
208 Sahovic, Dragutin244772 35.73
209 Popov, Luben244654 40.26
210 Hennings, Artur244566 35.80
211 Janoševic, Dragoljub244456 52.81
212 Ornstein, Axel244252 24.02
213 Vogt, Lothar H244252 24.29
214 Vranesic, Zvonko244273 37.57
215 Brasket, Curt Justin244174
216 Capelan, Guenter244175 43.76
217 Jansson, Borje244062 34.13
218 Cosulich, Roberto244070
219 Lederman, Leon243968 28.92
220 Peters, John A243964 25.22
221 Minic, Dragoljub243957 39.15
222 Schneider, Lars Ake243961
223 Pritchett, Craig William243858
224 Szmetan, Jorge243856 25.92
225 Lengyel, Levente243755 42.87
226 Kuijpers, Franciscus Antonius243658
227 Poutiainen, Pertti243657
228 Mednis, Edmar J243556 39.11
229 Biyiasas, Peter243562 25.45
230 Prandstetter, Eduard243363 27.37
231 Gerusel, Mathias243356 38.23
232 Chellstorp, Craig V243369
233 Anikaev, Yury243365 27.83
234 Pilnik, Herman243171 62.31
235 Pomar Salamanca, Arturo243154 44.66
236 Jiménez Zerquera, Eleazar243175 47.84
237 Minev, Nikolay N243071 45.31
238 Bisguier, Arthur B243054 46.56
239 Rukavina, Josip243060 33.42
240 Botterill, George Steven242959
241 Garcia, Raimundo242957 39.92
242 Liebert, Heinz242954 39.93
243 Langeweg, Kick242853 39.15
244 McKay, Roderick M242765 24.22
245 Haag, Ervin242671 43.30
246 Grinberg, Ricardo242661 28.29
247 Dely, Peter242557 41.82
248 Doda, Zbigniew242553 45.19
249 Musil, Vojko242564 30.70
250 Portisch, Ferenc242460 37.06
251 Flesch, Janos242262 42.58
252 Zwaig, Arne242161
253 Rodriguez Vargas, Orestes241956 32.82
254 Ermenkov, Evgenij241857 26.59
255 Bertok, Mario241872 46.66
256 Hase, Juan Carlos241860
257 Rath, Ulrik241771 29.35
258 Eising, Johannes241759 40.91
259 Bohm, Hans241754 26.29
260 Buljovcic, Ivan241762 39.34
261 Hazai, Laszlo241668 22.87
262 Scholl, Eddie C241571 31.54
263 Brond, Victor241559
264 Vadasz, Laszlo241555 28.26
265 Andersen, Borge241472 42.11
266 Lechtynsky, Jiri241456 28.43
267 Boey, Josef241368 41.95
268 Pintér, József241359 22.47
269 Ligterink, Gert241257 26.45
270 Jakobsen, Ole241272 33.53
271 Williams, Arthur Howard241161
272 Hug, Werner241056 23.64
273 Deze, Anton241063
274 Johannessen, Svein240766 38.54
275 Zichichi, Alvise240666 37.82
276 Hernandez, Roman240452 26.44
277 Szekely, Peter240364 21.23
278 Rossetto, Héctor D240359 53.64
279 Rubinetti, Jorge A240355 31.08
280 Mestrovic, Zvonimir240371 31.54
281 Van Riemsdijk, Herman C240262 27.68
282 Goodman, David SC240173
283 Pytel, Krzysztof240154 30.95
284 Cobo Arteaga, Eldis240165
285 Penrose, Jonathan240062 42.56
286 Clarke, Peter H240071
287 Haygarth, Michael J240067
288 Cuasnicu, Oscar239958 33.52
289 Hartoch, Robert G239854
290 Webb, Simon239859 26.88
291 Bellin, Robert239856 23.83
292 Myagmarsuren, Lhamsuren239774 38.20
293 Sydor, Andrzej239759 39.32
294 Nicevski, Risto239756 30.83
295 Neckar, Lubomir239658 25.74
296 Kozlov, Vladimir N239671 25.91
297 Adamski, Jan239652 32.47
298 Matera, Salvatore Joseph239570
299 Seret, Jean Luc239473
300 Martinovic, Slobodan239473 30.76
301 Enklaar, Bertus F239153
302 van Scheltinga, Tjeerd D239169 62.15
303 Bronstein, Luis239058 29.90
304 Cuartas, Carlos239067 35.71
305 Schiffer, Karl Josef238973
306 Giterman, Shlomo238969
307 Partos, Charles238771 39.72
308 Basman, Michael J238661 30.12
309 Kovacs, Laszlo M238659 37.57
310 Diesen, Mark C238664
311 Macles, Jacques238572 30.81
312 Lehmann, Heinz Dr238563
313 Filipowicz, Andrzej238558 37.96
314 Bellon Lopez, Juan Manuel238454 25.97
315 Garcia, Wilfredo238473 21.44
316 Marjanovic, Slavoljub238372 21.32
317 Uddenfeldt, Dan238366 25.09
318 Kagan, Shimon238363 34.07
319 Vladimirov, Evgeny Y238175 19.28
320 De la Vega, Hector238162 50.12
321 Dake, Arthur William238169 66.06
322 Meduna, Eduard238163 25.64
323 Horner, Jeff238068 26.68
324 Jamroz, Zbigniew238073 41.88
325 De Bruycker, Bernard237976 34.87
326 Littlewood, John Eric237969
327 Rajna, George237967 29.21
328 Fuller, Maxwell L237862 31.26
329 Moehring, Guenther237853 39.43
330 Visier Segovia, Fernando237859 33.24
331 Peev, Peicho Chonev237864 36.08
332 Evans, Larry D237771
333 Lukacs, Peter237662 25.81
334 Masic, Ljubomir237673 39.82
335 Pokojowczyk, Jerzy237666 27.19
336 Popov, Nikolay237670
337 Karklins, Andrew237568 29.04
338 Ivanovic, Božidar237562 29.68
339 Denker, Arnold S237468 62.19
340 Radashkovich, Itchak237466
341 Van Wijgerden, Cornelis237469 25.93
342 Sznapik, Aleksander237454 25.22
343 Pavlov, Mircea237374 38.63
344 Kupka, Slavoj237273 33.81
345 Gesos, Pavlos237165 30.92
346 Gasic, Bozidar237170 38.55
347 Markland, Peter R236864 25.05
348 Garcia Padron, Jose236763 18.10
349 Perkins, Alan H236768 27.11
350 Mestel, A Jonathan236757 19.13
351 Butnorius, Algimantas236668 29.44
352 Corden, Martyn J236671
353 Sinclair, Ian236576
354 Kozma, Julius236561 46.91
355 Zinn, Lothar236468 38.11
356 Goldenberg, Richard236472 28.44
357 Wade, Robert Graham236464
358 Toth, Bela236365 33.03
359 Gofshtein, Leonid D236268 23.03
360 Rodriguez Gonzales, Jesus236168
361 Campos Lopez, Mario236173 32.95
362 Kostro, Jerzy236060 39.26
363 Alexandria, Nana235865 26.55
364 Foguelman, Alberto235869 52.55
365 Inkiov, Ventzislav235869 19.94
366 Debarnot, Roberto235755 28.73
367 Kinnmark, Ove235759 31.35
368 Iskov, Gert235762 27.76
369 Emma, Jaime J235457 38.29
370 Ek, Hans235460 47.57
371 Wirthensohn, Heinz235467 24.98
372 Rocha, Antonio235366 31.87
373 Boudy, Julio235371 24.88
374 Knox, Victor W235267 31.27
375 Silva, Fernando235268 25.74
376 Eslon, Jaan235267 24.15
377 Terres Trois, Francisco235076
378 Banas, Jan235066 28.90
379 Rantanen, Yrjo A234863 26.02
380 Pelikán, Jorge234873 70.02
381 Ostermeyer, Peter234868 32.55
382 Holm, Sejer234865 36.72
383 Fichtl, Jirí234767 55.21
384 Velikov, Petar234672 25.08
385 Levy, David Neil Lawrence234663
386 Jacobsen, Bo234672 27.38
387 Spacek, Petr234564 22.18
388 Maciejewski, Andrzej234561 24.81
389 Akvist, Hakan234562 34.51
390 Camara, Helder234370 39.23
391 Nikolic, Stanimir234274 41.26
392 Seidler, Aldo234259
393 Bönsch, Uwe234256 17.54
394 Czerniak, Moshe234261 66.24
395 Dieks, Roy G234165 20.25
396 Ekstroem, Roland234176 19.93
397 Bernat, Miguel234073 18.62
398 Trapl, Jindrich233965 34.10
399 Anelli, Antonio233971 31.96
400 Petran, Pal233860 29.62
401 Kolbak, Jens233871 31.24
402 Borngaesser, Rene233769 24.61
403 Onat, Ilhan233769 46.40
404 Bouaziz, Slim233773 26.04
405 Vogel, Jaap233772 28.08
406 Pesantes Carbajal, Carlos233670
407 Pernishki, Luben233673 44.86
408 Starck, Bodo233572 41.55
409 Lanc, Alois233459 28.20
410 Szilágyi, György233461 54.82
411 Tompa, Janos233459 28.99
412 Bordonada, Glenn233376
413 Lombard, Andre233358 25.61
414 Todorcevic, Miodrag233275 35.47
415 Djuric, Stefan233273 20.76
416 Urzica, Aurel233273 23.47
417 Manasterski, Lutoslaw233163 39.22
418 Ludgate, Alan233174 30.66
419 Eley, Brian233068
420 Cardoso, Radolfo Tan233058
421 Whiteley, Andrew J233067 28.88
422 Naranja, Renato233064 35.60
423 Grabczewski, Romuald232959 44.23
424 Donchenko, Anatoly G232975 35.66
425 Jancev, Lazo232863
426 Liljedahl, Lennart232763 28.68
427 Hindle, Owen M232668 36.13
428 Horvath, Tamas232674 24.52
429 Mueller, Klaus Uwe232658
430 Garcia Palermo, Carlos232660 22.41
431 Szymczak, Zbigniew232561 24.32
432 Skalkotas, Nikolaos232474 26.61
433 Kushnir, Alla232263
434 Schaufelberger, Heinz232064 28.45
435 Kristiansen, Erling232059 39.37
436 Beyen, Roland232073 44.07
437 Bernard, Ryszard231962 31.69
438 Jankovec, Ivan231863 37.54
439 Hutchings, Stuart J231863
440 Janetschek, Karl231870 36.04
441 Schinzel, Wladyslaw231757 32.93
442 Hesse, Peter231766 31.59
443 Osterman, Rudolf231762 29.78
444 Estevez Morales, Guillermo231658
445 Speelman, Jonathan S231664 19.58
446 Gruenberg, Hans Ulrich231355 20.31
447 De Greif, Boris231268 46.21
448 Sikora Lerch, Jan230864
449 Link, Hugo E230772 22.62
450 Cafferty, Bernard230666 41.84
451 Gunev, Zlatan230573 30.75
452 Fraguela Gil, Jose Miguel230461
453 Ardiansyah, Haji230470 24.40
454 De Veauce, Louis230468
455 Kuligowski, Adam230366 20.35
456 Baumbach, Friedrich230264 40.64
457 Hoen, Ragnar230269 35.57
458 Wibe, Terje230271 28.57
459 Boersma, Paulus A230167 27.79
460 Trois, Francisco RT230163
461 Kaiszauri, Konstanty230167 23.51
462 Diaz, Joaquin C230063 27.82
463 Nowak, Ignacy230064 27.30
464 Skrobek, Ryszard230076 24.82
465 Medina García, Antonio A229962 56.58
466 Niklasson, Christer229964 23.32
467 Gutman, Lev229968 30.59
468 Marszalek, Rafal229872 35.42
469 Gereben, Ernö229762 68.86
470 Tisdall, Jonathan D229673 17.68
471 Bielczyk, Jacek229556 23.19
472 Helmertz, Per Inge229569
473 Timman, Ton229573 27.83
474 Lebredo, Gerardo229464 25.74
475 Ujtelky, Maximilián229373 61.03
476 Novak, Ivan229368 33.26
477 Kristinsson, Jon229274 33.86
478 Sanz Alonso, Francisco Javier229267
479 Venalainen, Unto E229176 32.17
480 Dietze, Wolfgang229062 25.86
481 Cooper, John Grantley229073
482 Garcia Conesa, Gregorio229073 41.25
483 Prochownik, Franciszek228974 41.45
484 Menvielle Lacourrelle, Augusto228960 37.72
485 Paehtz, Thomas Sr228760 19.65
486 Segal, Alexandru Sorin228775 28.57
487 Perecz, Laszlo228572 31.85
488 Bazan, Osvaldo228572 41.54
489 Thal, Olaf228473 40.38
490 Bengtsson, Bo228475 28.67
491 Moen, Ole Christian228267
492 Day, Lawrence A228171 27.25
493 Vinje Gulbrandsen, Arne228075
494 Petran, Peter227964 21.68
495 Savic, Andre227873
496 Dobosz, Henryk227364 23.11
497 Nikolic, Vasilije227376
498 Drelinkiewicz, Tadeusz227269
499 Fernandez, Juan C227266 24.74
500 Van der Vliet, Fredrik227267

These ratings, calculated as of April 30, 1976, incorporate all games (against rated opponents) played in the time between May 1, 1975 and April 30, 1976, along with the ratings that were already calculated as of April 30, 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 April 30, 1976. This represents the player's estimated strength on May 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 May 1, 1976. The +/- value represents the standard deviation of that estimate; the player's true strength on May 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 May 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 April 30, 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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