< February 28, 1987     Back to date list    April 30, 1987 >

Top 10 active players as of March 31, 1987

  #  

Player Rating +/-
1 Kasparov, Garry K282749
2 Karpov, Anatoly E277648
3 Tal, Mikhail270149
4 Jussupow, Artur M269950
5 Beliavsky, Alexander G268449
6 Psakhis, Lev B267648
7 Timman, Jan H267448
8 Short, Nigel D267048
9 Portisch, Lajos266848
10 Korchnoi, Viktor L266648

About these ratings

Top 500 active players as of March 31, 1987

  #  

Player Rating +/- Best? 75%? Age
1 Kasparov, Garry K28274970.8% #223.96
2 Karpov, Anatoly E27764819.9% #435.86
3 Tal, Mikhail2701491.5% #2450.39
4 Jussupow, Artur M2699501.2% #2527.13
5 Beliavsky, Alexander G2684490.6% #3333.29
6 Psakhis, Lev B2676480.4% #4028.34
7 Timman, Jan H2674480.3% #4035.30
8 Short, Nigel D2670480.3% #4321.83
9 Portisch, Lajos2668480.3% #4449.98
10 Korchnoi, Viktor L2666480.1% #4656.02
11 Hübner, Robert2666500.3% #4738.40
12 Tukmakov, Vladimir B2663500.2% #4941.04
13 Polugaevsky, Lev A2663500.3% #5052.36
14 Sokolov, Andrey Y2662490.2% #5024.03
15 Ljubojevic, Ljubomir2661490.2% #5136.41
16 Salov, Valery B2659520.3% #5422.85
17 Eingorn, Viacheslav S2657490.2% #5630.35
18 Khalifman, Alexander2656500.1% #5621.20
19 Vaganian, Rafael A2654500.1% #5735.46
20 Ribli, Zoltán2650490.1% #6135.57
21 Gulko, Boris F2649520.1% #6340.14
22 Ehlvest, Jaan2648520.1% #6424.46
23 Seirawan, Yasser2647500.1% #6327.02
24 Lerner, Konstantin Z2644500.1% #6637.09
25 Spassky, Boris V2643490.1% #6650.17
26 Nikolic, Predrag2642510.1% #6926.55
27 Chernin, Alexander M2642490.1% #6827.07
28 Andersson, Ulf2641500.1% #7135.76
29 Vasiukov, Evgeny A2639650.4% #8154.07
30 Sax, Gyula2639500.1% #7135.79
31 Dolmatov, Sergey V263950 #7128.11
32 Speelman, Jonathan S263449 #7530.50
33 Miles, Anthony J263247 #7731.93
34 Lputian, Smbat G263149 #7929.13
35 Pintér, József262752 #8433.39
36 Gavrikov, Victor N262650 #8529.67
37 Bareev, Evgeny262451 #8720.36
38 Ivanchuk, Vassily2624550.1% #9018.04
39 Balashov, Yury S262450 #8738.05
40 Romanishin, Oleg M262349 #8735.22
41 Vyzmanavin, Alexey262153 #9227.25
42 Nunn, John D M262149 #8931.93
43 Vladimirov, Evgeny Y2619570.1% #9630.20
44 Torre, Eugenio261954 #9335.41
45 Kuzmin, Gennady P261457 #10341.20
46 Larsen, Bent261253 #10052.07
47 Gurevich, Mikhail N261251 #9928.11
48 Chandler, Murray G261149 #9926.98
49 Gelfand, Boris2611630.1% #11018.77
50 Malaniuk, Vladimir P260950 #10229.69
51 Goldin, Alexander260855 #10622.09
52 Hort, Vlastimil260750 #10343.22
53 Ubilava, Elizbar E260751 #10536.59
54 Dokhoian, Yury260754 #10822.43
55 Dorfman, Iosif D260755 #10834.91
56 Huzman, Alexander260754 #10724.97
57 Kharitonov, Andrey Y260654 #10827.98
58 Azmaiparashvili, Zurab A260551 #10727.04
59 Naumkin, Igor2603700.2% #12321.64
60 Smagin, Sergey260251 #10928.56
61 Agdestein, Simen260251 #11119.88
62 Sveshnikov, Evgeny E260151 #11137.14
63 Christiansen, Larry M260052 #11430.76
64 Razuvaev, Yury S259851 #11541.47
65 Mikhalchishin, Adrian B259851 #11532.37
66 Dzindzichashvili, Roman Y259760 #12142.90
67 Kupreichik, Viktor D259750 #11537.74
68 Yurtaev, Leonid259659 #12227.91
69 Smyslov, Vassily V259651 #11666.02
70 Geller, Efim P259651 #11862.08
71 Yermolinsky, Alex V259555 #12028.96
72 Kruppa, Yuri259557 #12122.78
73 Smirin, Ilia2594700.1% #13219.19
74 Zaichik, Gennady L259354 #12230.14
75 Rashkovsky, Nukhim N259351 #11940.95
76 Rozentalis, Eduardas259257 #12523.84
77 Dvoiris, Semen I259155 #12528.41
78 Makarichev, Sergey Y259155 #12533.37
79 van der Wiel, John T H259049 #12227.64
80 Hansen, Curt259051 #12322.54
81 Novikov, Igor A258951 #12424.86
82 Yudasin, Leonid G258650 #12527.65
83 Nogueiras, Jesus258650 #12627.70
84 Georgiev, Kiril258551 #12821.34
85 Panchenko, Alexander N258555 #13133.49
86 Kengis, Edvins258454 #13227.96
87 Kavalek, Lubomir258252 #13143.64
88 Podgaets, Mikhail Y258262 #13939.69
89 Adorján, András258150 #13236.99
90 Gipslis, Aivars2581690.1% #14450.15
91 Parma, Bruno2579740.1% #14845.25
92 Panno, Oscar R257865 #14452.04
93 Glek, Igor V257760 #14125.40
94 Pigusov, Evgeny257751 #13725.99
95 Knaak, Rainer F257651 #13734.04
96 Tseshkovsky, Vitaly V257551 #13842.52
97 Shneider, Aleksandr257562 #14624.86
98 Cámpora, Daniel H257453 #14129.75
99 Tarjan, James E257366 #15035.11
100 Marjanovic, Slavoljub257251 #14032.23
101 Alburt, Lev O257252 41.61
102 Kochiev, Alexander257058 31.02
103 Sosonko, Gennadi257051 43.87
104 Gheorghiu, Florin257052 42.98
105 Gorelov, Sergey G256856 29.62
106 Graf, Alexander256758 24.60
107 Chiburdanidze, Maia G256754 26.20
108 Timoshchenko, Gennady256653 37.92
109 Popovic, Petar256651 28.13
110 Suba, Mihai256550 39.83
111 Gligoric, Svetozar256553 64.16
112 Olafsson, Helgi256351 30.63
113 Dreev, Alexey256257 18.20
114 Kantsler, Boris256258 24.95
115 Lobron, Eric256150 26.90
116 Benjamin, Joel L256152 23.05
117 Ftácnik, Lubomír256149 29.42
118 Byrne, Robert E255864 58.94
119 Bagirov, Vladimir K255656 50.62
120 Neverov, Valery255655 22.78
121 Murey, Yakov255353 45.66
122 Vorotnikov, Vladislav V255366 39.62
123 Yakovich, Yuri255351 24.34
124 Reshevsky, Samuel H255264 75.35
125 Ivanov, Igor V255160 40.23
126 Shabanov, Yury F255159 49.39
127 Zapata, Alonso255151 28.61
128 Marin, Mihail255062 21.94
129 Karlsson, Lars255052 31.72
130 Cvitan, Ognjen254951 25.47
131 Gufeld, Eduard E254860 51.03
132 Gruenfeld, Yehuda254852 31.09
133 Korzubov, Peter254866 25.25
134 London, Dimitri254871 24.36
135 Fedorowicz, John P254750 28.51
136 Arnason, Jon L254650 26.38
137 Smejkal, Jan254549 41.02
138 Vaisser, Anatoli254553 38.07
139 Petrosian, Arshak B254455 33.29
140 Osnos, Viacheslav V254370 51.69
141 Quinteros, Miguel A254252 39.26
142 Didishko, Vereslav254265 37.97
143 Palatnik, Semen A254157 37.01
144 García Gonzáles, Guillermo254051 33.31
145 Matulovic, Milan254064 51.81
146 Rogers, Ian254050 26.77
147 Henley, Ron W253963 30.32
148 Uhlmann, Wolfgang253952 52.01
149 Garcia Palermo, Carlos253951 33.33
150 Taimanov, Mark E253862 61.15
151 Kholmov, Ratmir D253857 61.88
152 Arkhipov, Sergey253856 32.77
153 Oll, Lembit253754 20.93
154 Kaidanov, Gregory S253754 27.47
155 Hjartarson, Jóhann253550 24.15
156 Faragó, Iván253449 40.99
157 Chekhov, Valery A253452 31.34
158 Epishin, Vladimir253359 21.72
159 Kovacevic, Vladimir253357 45.01
160 Morovic Fernández, Iván E253257 24.02
161 Hulak, Krunoslav253253 35.85
162 Mestel, A Jonathan253252 30.05
163 Ivanov, Alexander V253160 30.91
164 Sturua, Zurab253066 27.81
165 Kurajica, Bojan252953 39.38
166 Dueball, Juergen252974 42.01
167 Bönsch, Uwe252851 28.46
168 Barua, Dibyendu252764 20.43
169 Velikov, Petar252653 36.00
170 Wedberg, Tom252661 33.35
171 Kindermann, Stefan252549 27.26
172 Kuzmin, Alexey252564 24.06
173 Ivkov, Borislav252452 53.38
174 Inkiov, Ventzislav252351 30.87
175 Sunye Neto, Jaime252351 29.91
176 Spraggett, Kevin B252252 32.39
177 Serper, Grigory252260 17.55
178 Browne, Walter S252152 38.22
179 Velimirovic, Dragoljub251951 44.88
180 Lau, Ralf251951 27.45
181 Gaprindashvili, Nona251859 45.91
182 Aseev, Konstantin N251855 26.45
183 Adianto, Utut251860 22.04
184 Magerramov, Elmar S251863 28.97
185 Anand, Viswanathan251761 17.30
186 Barbulescu, Dan251757 22.77
187 Lukacs, Peter251650 36.73
188 deFirmian, Nicholas E251650 29.68
189 Ostermeyer, Peter251558 43.47
190 Greenfeld, Alon251553 22.95
191 Groszpeter, Attila251553 26.81
192 Wilder, Michael251456 24.54
193 Xu Jun251459 24.54
194 Csom, István251451 46.83
195 Hazai, Laszlo251351 33.80
196 Barlov, Dragan251352 30.17
197 Gomez Baillo, Jorge H251269 27.94
198 Guseinov, Aidyn251263 35.25
199 Dlugy, Maxim251151 21.17
200 Vogt, Lothar H251152 35.20
201 Loginov, Valery A251058 31.30
202 Antunes, Antonio250967 25.15
203 Dautov, Rustem250962 21.34
204 Unzicker, Wolfgang250857 61.76
205 Nemet, Ivan250770 43.96
206 Pétursson, Margeir250750 27.13
207 Birnboim, Nathan250754 36.34
208 Van der Sterren, Paul250752 31.04
209 Mokrý, Karel250749 28.15
210 Illescas Cordoba, Miguel250758 21.33
211 Gurevich, Dmitry250652 30.55
212 Grigorian, Karen A250567 39.57
213 Govedarica, Radovan250261 39.13
214 Schneider, Lars Ake250259
215 Watson, William N250251 24.95
216 Cebalo, Mišo250250 42.15
217 Nikolac, Juraj250166 54.94
218 Hodgson, Julian M250051 23.68
219 Cifuentes Parada, Roberto250065 29.28
220 Tisdall, Jonathan D250057 28.60
221 Vitolinš, Alvis250062 40.79
222 Seret, Jean Luc250062
223 Todorcevic, Miodrag249969 46.39
224 Kudrin, Sergey249950 27.57
225 Kovacevic, Vladimir2249968 32.04
226 Tringov, Georgy P249958 50.07
227 Kolarov, Atanas S249971 53.08
228 Shamkovich, Leonid A249860 63.83
229 Mednis, Edmar J249662 50.02
230 Ree, Hans249654 42.54
231 Ghinda, Mihail Viorel249656 37.68
232 Ivanovic, Božidar249653 40.60
233 Basin, Leonid249663 29.36
234 Sokolov, Ivan249657 18.80
235 Plaskett, Jim249651 27.04
236 Klovans, Janis249559 51.97
237 Hickl, Joerg249557 21.95
238 Georgadze, Tamaz V249555 39.39
239 Kuporosov, Viktor249471 25.51
240 Fernandez Garcia, Jose Luis249461 32.91
241 Stohl, Igor249251 22.51
242 Jansa, Vlastimil249149 44.34
243 Kogan, Boris249156
244 Minic, Dragoljub249172 50.07
245 Soppe, Guillermo249169 26.54
246 Franco Ocampos, Zenon249173 30.88
247 Moskalenko, Viktor249173 26.32
248 Vukic, Milan249062 43.62
249 Mnatsakanian, Eduard A249063 48.32
250 Abramovic, Boško249053 36.13
251 Bischoff, Klaus249053 25.81
252 Lanka, Zigurds249060 26.86
253 Georgiev, Krum248952 28.85
254 Meduna, Eduard248951 36.55
255 Raicevic, Momcilo248963
256 Ernst, Thomas248953 26.62
257 Rukavina, Josip248856 44.34
258 Staniszewski, Piotr248854 20.57
259 Lombardy, William J248861 49.32
260 Flear, Glenn C248851 28.13
261 Dizdar, Goran248754 28.32
262 Drasko, Milan248753 24.32
263 Kalinitschew, Sergey248766 31.16
264 Ionescu, Constantin248658 28.55
265 Joksic, Sinisa248573 46.47
266 Plachetka, Jan248551 42.12
267 Rodriguez, Amador248552 30.56
268 Hellers, Ferdinand248455 18.18
269 Petrushin, Alexander I248466 40.06
270 Donchev, Dimitar I248454 28.69
271 Pfleger, Helmut248259 43.65
272 Vaulin, Alexander248271 30.04
273 Hebden, Mark248256 29.13
274 Pytel, Krzysztof248263 41.88
275 Yrjola, Jouni248253 27.44
276 Simic, Radoslav248161 38.81
277 Lein, Anatoly248154 56.01
278 Wirthensohn, Heinz248059 35.91
279 Espig, Lutz248055 38.24
280 Barbero, Gerardo F248059 25.61
281 Vera, Reynaldo247956 26.23
282 Klaric, Zlatko247962 30.44
283 Hawelko, Marek247852 27.64
284 Khasin, Alexander247865 35.92
285 Gofshtein, Leonid D247870 33.94
286 Piket, Jeroen247756 18.18
287 Ornstein, Axel247757 34.93
288 Lukin, Andrei M247663 38.59
289 Řgaard, Leif247657 35.24
290 Gurgenidze, Bukhuti I247655 53.38
291 Legky, Nikolay A247569 31.96
292 Efimov, Igor247565 26.54
293 Winants, Luc247557 24.25
294 Wolf, Volker247465 29.57
295 Kirov Ivanov, Nino247454 41.56
296 Nikolic, Zivoslav247458 33.30
297 Sahovic, Dragutin247460 46.65
298 Popchev, Milko247456 22.39
299 Klundt, Klaus247370 45.27
300 Haik, Aldo247351 34.45
301 Schussler, Harry247354 29.77
302 Popov, Luben247168 51.18
303 Reyes, Juan247166 23.92
304 Lanc, Alois247053 39.12
305 Spassov, Liuben247055 44.02
306 Lechtynsky, Jiri247052 39.35
307 Ziatdinov, Raset247071 28.26
308 Tatai, Stefano246956 49.02
309 Gutman, Lev246950 41.51
310 Pekarek, Ales246951 25.29
311 Tischbierek, Raj246852 24.52
312 Helmers, Knut J246862 30.15
313 Portisch, Ferenc246858 47.97
314 Szekely, Peter246754 32.15
315 Peters, John A246776 36.14
316 Ermenkov, Evgenij246653 37.51
317 Hecht, Hans-Joachim246664 48.17
318 Szabó, László246670 70.03
319 Soltis, Andrew E246669 39.84
320 Rajkovic, Dusan246563 44.79
321 Janovsky, Sergey246476 27.12
322 Matlak, Marek246454 21.03
323 Rakic, Tomislav246466 52.39
324 Zaitsev, Igor A246374 48.84
325 Stoica, Valentin246269 37.13
326 Hartston, William R246174 39.63
327 Rivas Pastor, Manuel246156 26.72
328 Tseitlin, Mikhail S246064 39.79
329 Li Zunian246058 29.23
330 Sharif, Mershad246058 34.72
331 Veinger, Itzhak246057 48.74
332 Ricardi, Pablo245959 25.10
333 Filipovic, Branko245964 29.48
334 Bilek, István245871 54.64
335 Tempone, Marcelo245873 24.57
336 Benko, Pal C245769 58.71
337 Kolev, Atanas245765 19.71
338 Karpman, Vadim245769 21.88
339 Valkesalmi, Kimmo245655 25.91
340 Sideif Sade, Fikret I245658 35.25
341 Murshed, Niaz245660 20.88
342 Kosten, Anthony C245661 28.69
343 Tashkhodzhaev, A.245674
344 Horvath, Jozsef245655 22.63
345 Shirov, Alexei245673 14.74
346 Kremenetsky, Anatoly M245669 48.21
347 Pedersen, Erik245562 28.55
348 Ardiansyah, Haji245560 35.32
349 Cramling, Dan245460 28.15
350 Eslon, Jaan245464 35.07
351 Lalic, Bogdan245465 23.06
352 Yap, Andronico245457
353 Bukal, Vladimir Sr245363 47.41
354 Schmidt, Wlodzimierz245349 43.97
355 Forintos, Gyözö V245359 51.67
356 Frias, Victor J245268 31.14
357 Thorhallsson, Throstur245261 18.03
358 King, Daniel J245252 23.59
359 Mirkovic, Slobodan245173 28.68
360 Sigurjónsson, Gudmundur245055 39.52
361 Suetin, Alexey S245061 60.37
362 Knezevic, Milorad244952 50.42
363 Gruenberg, Hans Ulrich244855 31.23
364 Vokác, Marek244856 28.32
365 Pachmann, Ludek244873 62.89
366 Bisguier, Arthur B244772 57.48
367 Foisor, Ovidiu244755 27.98
368 Thorsteins, Karl244757 22.47
369 Polgar, Zsuzsa244751 17.94
370 Akesson, Ralf244658 26.15
371 Velickovic, Sasa244673 35.99
372 Renman, Nils Gustaf244660
373 Gauglitz, Gernot244561 24.76
374 Womacka, Mathias244574 20.76
375 Blatny, Pavel244554 18.77
376 Renet, Olivier244453 22.28
377 Nun, Jiri244462 29.68
378 Nun, Josef244475 53.69
379 Kurtenkov, Atanas244463 23.66
380 McNab, Colin Anderson244460 26.16
381 Lalev, Dimitar244468 27.21
382 Ambroz, Jan244463 32.79
383 Ochoa de Echaguen, F Javier244464 32.57
384 Braga, Fernando244360 28.73
385 Ye Jiangchuan244363 26.36
386 Schoen, Wolfram244373 19.82
387 Bany, Jerzy244354 26.07
388 Motwani, Paul244263 24.80
389 Hertneck, Gerald244254 23.54
390 Bielczyk, Jacek244256 34.11
391 Hermann, Manfred244267 44.58
392 Raicevic, Vladimir244263 37.91
393 Thipsay, Praveen Mahadeo244157 27.63
394 Talavera, JC.244169
395 Giorgadze, Giorgi244069 22.47
396 Wockenfuss, Klaus244057 35.59
397 Kuczynski, Robert244053 20.95
398 Kraidman, Yair244063 54.41
399 Kveinys, Aloyzas244069 24.73
400 Reeh, Oliver243963 23.20
401 Barczay, Laszlo243963 51.11
402 Krasenkow, Michal243867 23.38
403 Mortensen, Erling243854 31.98
404 Sarwinski, Miroslaw243860 33.21
405 Radulov, Ivan243854 48.23
406 Heinbuch, Detlef243858 26.23
407 Klinger, Josef243751 19.82
408 Jakobsen, Ole243660 44.45
409 Sznapik, Aleksander243651 36.14
410 Lazic, Miroljub243673 20.76
411 Shtyrenkov, Veniamen243569 28.93
412 Akhmilovskaya, Elena243561
413 Spiridonov, Nikola243453 49.09
414 Filipowicz, Andrzej243461 48.88
415 Paulsen, Dirk243466 28.18
416 Martinovic, Slobodan243455 41.68
417 Kelecevic, Nedeljko243475 40.05
418 Rodriguez, Ruben243470 40.32
419 Hernandez, Roman243358 37.36
420 Wittmann, Walter243356 39.05
421 Kouatly, Bachar243351 29.08
422 Fokin, Sergey243272 31.46
423 Temirbaev, Serik243261
424 Casper, Thomas243258 28.04
425 Robatsch, Karl243155 58.46
426 Santo Roman, Marc243169 26.55
427 Kallai, Gabor243157 28.11
428 Lengyel, Levente243059 53.80
429 Solozhenkin, Evgeniy243069 20.67
430 Handoko, Edhi243059 26.59
431 Garcia, Gildardo243061 33.06
432 Potts, Alan243069
433 Kamsky, Gata242973 12.83
434 Ghitescu, Theodor242873 53.19
435 Schneider, Attila242856 31.96
436 Sanna, Gianlazzaro242873 26.96
437 Sendera, Jaroslaw242869 21.92
438 Wiedenkeller, Michael242753 24.22
439 Rigo, Janos242662 38.43
440 Garcia Martinez, Silvino242655 42.74
441 Heidrich, Manfred242673 30.34
442 Sehner, Norbert242656 27.15
443 Borm, Franciscus WM242570
444 Kuligowski, Adam242555 31.27
445 Luczak, Andrzej242568 38.32
446 Hawksworth, John C242571 23.32
447 Milos, Gilberto242558 23.42
448 Szmetan, Jorge242475 36.85
449 Mariotti, Sergio242463 40.64
450 Trapl, Jindrich242464 45.02
451 Schulz, Klaus Juergen242357
452 Qi Jingxuan242359 39.39
453 Blees, Albert242258 24.60
454 Karolyi, Tibor Jr242254 25.38
455 Schulte, Oliver242264 18.28
456 Cabrilo, Goran242268 28.75
457 Pelts, Roman242271 50.05
458 Bastian, Herbert242262 34.31
459 Schweber, Samuel242175 50.71
460 Doncevic, Dario242163 29.22
461 Sygulski, Artur242151 26.69
462 Hug, Werner242156 34.56
463 McCambridge, Vincent242161 27.06
464 Condie, Mark L242156 22.13
465 Danailov, Silvio242156 25.94
466 Tomaszewski, Roman242054 26.87
467 Prandstetter, Eduard241952 38.29
468 Ost Hansen, Jacob241968
469 Zahariev, Zahari241973 25.56
470 Semkov, Semko241962 27.09
471 Vilela, Jose Luis241956 34.03
472 Pribyl, Josef241859 39.47
473 Sonntag, Hans Hubert241868
474 Paehtz, Thomas Sr241854 30.57
475 Gallagher, Joseph G241864 22.91
476 Ligterink, Gert241757 37.37
477 Davies, Nigel R241759 26.67
478 Bohm, Hans241764 37.21
479 De Wit, Johannes S241768 22.51
480 Toshkov, Tihomir241761 27.36
481 Imanaliev, Taalaibek241669
482 Djuric, Stefan241654 31.68
483 Ulibin, Mikhail241565 15.83
484 Grivas, Efstratios241565 21.00
485 Gruenenwald, Joerg241571 21.82
486 Van Riemsdijk, Herman C241570 38.60
487 Shvidler, Eliahu241555 27.28
488 Jailjan, M.241474
489 Meister, Peter241468 20.77
490 Kristiansen, Jens241354 34.85
491 Jasnikowski, Zbigniew241355 31.88
492 Barle, Janez241372 35.03
493 Nickoloff, Bryon241366 30.77
494 Ilic, Zoran241374 23.66
495 Damjanovic, Mato241264 60.02
496 Horvath, Tamas241258 35.44
497 Hoelzl, Franz241263 40.98
498 Saeed, Saeed Ahmed241167
499 Mascarinas, Rico241170 34.08
500 Bronstein, Luis241168 40.83

These ratings, calculated as of March 31, 1987, incorporate all games (against rated opponents) played in the time between April 1, 1986 and March 31, 1987, along with the ratings that were already calculated as of March 31, 1986. 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 March 31, 1987. This represents the player's estimated strength on April 1, 1987.

+/- 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 April 1, 1987. The +/- value represents the standard deviation of that estimate; the player's true strength on April 1, 1987 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 April 1, 1987. 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 March 31, 1987. 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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