< February 29, 1988     Back to date list    April 30, 1988 >

Top 10 active players as of March 31, 1988

  #  

Player Rating +/-
1 Kasparov, Garry K281149
2 Karpov, Anatoly E277148
3 Timman, Jan H273447
4 Beliavsky, Alexander G270349
5 Tal, Mikhail269347
6 Portisch, Lajos268348
7 Jussupow, Artur M268249
8 Short, Nigel D268147
9 Ivanchuk, Vassily267652
10 Ehlvest, Jaan267450

About these ratings

Top 500 active players as of March 31, 1988

  #  

Player Rating +/- Best? 75%? Age
1 Kasparov, Garry K28114961.0% #224.96
2 Karpov, Anatoly E27714821.3% #536.86
3 Timman, Jan H2734476.2% #1236.30
4 Beliavsky, Alexander G2703492.0% #2434.29
5 Tal, Mikhail2693471.1% #2951.39
6 Portisch, Lajos2683480.7% #3550.98
7 Jussupow, Artur M2682490.8% #3628.13
8 Short, Nigel D2681470.5% #3622.83
9 Ivanchuk, Vassily2676520.7% #4219.04
10 Ehlvest, Jaan2674500.6% #4225.46
11 Korchnoi, Viktor L2669470.3% #4557.02
12 Speelman, Jonathan S2666500.4% #4831.50
13 Tukmakov, Vladimir B2663490.3% #5142.04
14 Gavrikov, Victor N2661500.3% #5330.67
15 Ribli, Zoltán2660500.2% #5336.57
16 Ljubojevic, Ljubomir2660470.2% #5237.41
17 Khalifman, Alexander2658500.2% #5522.20
18 Gelfand, Boris2658520.4% #5719.77
19 Sax, Gyula2654510.2% #5936.79
20 Yudasin, Leonid G2654510.2% #6028.65
21 Andersson, Ulf2654490.2% #5836.76
22 Gurevich, Mikhail N2653480.1% #5929.11
23 Salov, Valery B2651510.2% #6223.85
24 Hübner, Robert2651490.1% #6139.40
25 Seirawan, Yasser2650490.1% #6228.02
26 Spassky, Boris V2649500.2% #6351.17
27 Malaniuk, Vladimir P2646490.1% #6530.69
28 Psakhis, Lev B2642480.1% #6929.34
29 Nikolic, Predrag2642480.1% #6927.55
30 Vaganian, Rafael A2642480.1% #6936.46
31 Chandler, Murray G263548 #7627.98
32 Azmaiparashvili, Zurab A2635520.1% #7928.04
33 Gulko, Boris F2634490.1% #7741.14
34 Chernin, Alexander M2634480.1% #7728.07
35 Agdestein, Simen2633510.1% #8020.88
36 Kharitonov, Andrey Y2631520.1% #8228.98
37 Hort, Vlastimil263050 #8244.22
38 Lputian, Smbat G263049 #8130.13
39 Romanishin, Oleg M263048 #8236.22
40 Dokhoian, Yury2625540.1% #9123.43
41 Balashov, Yury S262449 #8839.05
42 Georgiev, Kiril262449 #8822.34
43 Dolmatov, Sergey V262450 #8929.11
44 Nunn, John D M262249 #9032.93
45 Sokolov, Andrey Y262050 #9325.03
46 Polugaevsky, Lev A261850 #9653.36
47 Goldin, Alexander261755 #10023.09
48 Smirin, Ilia261653 #9920.19
49 Eingorn, Viacheslav S261250 #10231.35
50 Sveshnikov, Evgeny E261150 #10438.14
51 Vyzmanavin, Alexey261151 #10428.25
52 Lerner, Konstantin Z261050 #10438.09
53 Kruppa, Yuri2609590.1% #11223.78
54 Pintér, József260651 #10934.39
55 Dorfman, Iosif D260652 #11135.91
56 Razuvaev, Yury S260550 #10942.47
57 Tseshkovsky, Vitaly V260450 #11243.52
58 Hjartarson, Jóhann260249 #11325.15
59 Larsen, Bent260150 #11453.07
60 Smyslov, Vassily V260151 #11567.02
61 Ftácnik, Lubomír260050 #11530.42
62 Pigusov, Evgeny259950 #11626.99
63 Dreev, Alexey259954 #11919.20
64 Bareev, Evgeny259850 #11721.36
65 Christiansen, Larry M259549 #12031.76
66 Neverov, Valery259557 #12623.78
67 Huzman, Alexander259452 #12325.97
68 Rashkovsky, Nukhim N259351 #12441.95
69 Yurtaev, Leonid259357 #12828.91
70 Murey, Yakov259352 #12646.66
71 Vaisser, Anatoli259252 #12539.07
72 Smagin, Sergey259150 #12429.56
73 Torre, Eugenio259149 #12536.41
74 Kuzmin, Gennady P259153 #12842.20
75 Rozentalis, Eduardas259152 #12724.84
76 Ubilava, Elizbar E259054 #12937.59
77 Miles, Anthony J258948 #12732.93
78 Anand, Viswanathan258652 #13218.30
79 Dvoiris, Semen I258458 #13829.41
80 Krasenkow, Michal258456 #13724.38
81 Panchenko, Alexander N258353 #13534.49
82 Vladimirov, Evgeny Y258256 #13931.20
83 Kavalek, Lubomir258255 #13844.64
84 Mikhalchishin, Adrian B258150 #13633.37
85 Podgaets, Mikhail Y258064 #14740.69
86 Marin, Mihail258056 #14122.94
87 Makarichev, Sergey Y257956 #14134.37
88 van der Wiel, John T H257948 #13728.64
89 Gorelov, Sergey G257958 #14430.62
90 Timoshchenko, Gennady257851 #14038.92
91 Kaidanov, Gregory S257651 #14128.47
92 Benjamin, Joel L257649 #14024.05
93 Novikov, Igor A257650 #14125.86
94 Vasiukov, Evgeny A257355 #14855.07
95 Naumkin, Igor257353 #14622.64
96 Panno, Oscar R257261 #15253.04
97 Popovic, Petar257150 #14529.13
98 Greenfeld, Alon257152 #14723.95
99 Darga, Klaus V2571720.1% #15954.10
100 Kochiev, Alexander257054 #14932.02
101 Bönsch, Uwe256850 29.46
102 Adorján, András256750 37.99
103 Glek, Igor V256666 26.40
104 Bronstein, David I256668 64.12
105 Pétursson, Margeir256649 28.13
106 Nogueiras, Jesus256649 28.70
107 Karlsson, Lars256450 32.72
108 Epishin, Vladimir256354 22.72
109 Suba, Mihai256350 40.83
110 Shabanov, Yury F256362 50.39
111 Gufeld, Eduard E256261 52.03
112 Sokolov, Ivan256253 19.80
113 Cámpora, Daniel H256251 30.75
114 Oll, Lembit256251 21.93
115 Moskalenko, Viktor256156 27.32
116 Zaichik, Gennady L256050 31.14
117 Kudrin, Sergey255950 28.57
118 Gipslis, Aivars255856 51.15
119 Morovic Fernández, Iván E255856 25.02
120 Sosonko, Gennadi255851 44.87
121 Fedorowicz, John P255850 29.51
122 Kindermann, Stefan255848 28.26
123 Spraggett, Kevin B255752 33.39
124 Mainka, Romuald255757 24.88
125 Dautov, Rustem255663 22.34
126 Didishko, Vereslav255666 38.97
127 Shereshevsky, Mikhail I255573 37.94
128 Velimirovic, Dragoljub255551 45.88
129 Vorotnikov, Vladislav V255575 40.62
130 Kholmov, Ratmir D255557 62.88
131 Yakovich, Yuri255454 25.34
132 Dlugy, Maxim255349 22.17
133 Uhlmann, Wolfgang255352 53.01
134 Csom, István255250 47.83
135 Kupreichik, Viktor D255250 38.74
136 Hansen, Curt255150 23.54
137 Chiburdanidze, Maia G255153 27.20
138 Kengis, Edvins255153 28.96
139 Yermolinsky, Alex V255154 29.96
140 Soppe, Guillermo255164 27.54
141 Knaak, Rainer F255150 35.04
142 Marjanovic, Slavoljub254949 33.23
143 Dzindzichashvili, Roman Y254855 43.90
144 Arkhipov, Sergey254755 33.77
145 Hulak, Krunoslav254750 36.85
146 Chekhov, Valery A254752 32.34
147 Janjgava, Lasha254653 17.90
148 Kveinys, Aloyzas254561 25.73
149 Sorokin, Maxim254558 20.19
150 Browne, Walter S254550 39.22
151 Ivanov, Alexander V254466 31.91
152 Reshevsky, Samuel H254371 76.35
153 Rodriguez, Amador254250 31.56
154 Gaprindashvili, Nona254258 46.91
155 Bagirov, Vladimir K254254 51.62
156 Savon, Vladimir A254266 47.51
157 Henley, Ron W254171 31.32
158 Cvitan, Ognjen254150 26.47
159 Taimanov, Mark E254070 62.15
160 Lobron, Eric254050 27.90
161 deFirmian, Nicholas E254050 30.68
162 Aseev, Konstantin N254059 27.45
163 Shneider, Aleksandr253959 25.86
164 Graf, Alexander253957 25.60
165 Quinteros, Miguel A253855 40.26
166 Arnason, Jon L253850 27.38
167 Gheorghiu, Florin253850 43.98
168 Cebalo, Mišo253751 43.15
169 Serper, Grigory253555 18.55
170 Gligoric, Svetozar253553 65.16
171 Ulibin, Mikhail253458 16.83
172 Wedberg, Tom253452 34.35
173 Ekstroem, Roland253460 31.86
174 Ivanov, Igor V253354 41.23
175 Lalic, Bogdan253351 24.06
176 Sturua, Zurab253275 28.81
177 Olafsson, Helgi253250 31.63
178 Byrne, Robert E253259 59.94
179 Kurajica, Bojan253258 40.38
180 Smejkal, Jan253151 42.02
181 Geller, Efim P253049 63.08
182 Groszpeter, Attila253051 27.81
183 Kuzmin, Alexey252957 25.06
184 García Gonzáles, Guillermo252850 34.31
185 Inkiov, Ventzislav252751 31.87
186 Seret, Jean Luc252663
187 Adianto, Utut252660 23.04
188 Palatnik, Semen A252656 38.01
189 Ivanovic, Božidar252552 41.60
190 Mestel, A Jonathan252453 31.05
191 Watson, William N252351 25.95
192 Ruban, Vadim252359 23.80
193 Lanka, Zigurds252360 27.86
194 Rogers, Ian252350 27.77
195 Barlov, Dragan252150 31.17
196 Gruenfeld, Yehuda252151 32.09
197 Antunes, Antonio252173 26.15
198 London, Dimitri252066 25.36
199 Ostermeyer, Peter252063 44.47
200 Sherbakov, Vitaly S252072 32.78
201 Liberzon, Vladimir M251962 51.02
202 Bischoff, Klaus251951 26.81
203 Illescas Cordoba, Miguel251953 22.33
204 Sahovic, Dragutin251860 47.65
205 Veingold, Aleksander251865 34.47
206 Barua, Dibyendu251855 21.43
207 Alburt, Lev O251851 42.61
208 Nemet, Ivan251762 44.96
209 Mokrý, Karel251650 29.15
210 Guseinov, Aidyn251664 36.25
211 Barbero, Gerardo F251657 26.61
212 Garcia Palermo, Carlos251550 34.33
213 Cifuentes Parada, Roberto251555 30.28
214 Vogt, Lothar H251551 36.20
215 Lukacs, Peter251550 37.73
216 Vitolinš, Alvis251460 41.79
217 Ninov, Kiril251457 19.48
218 Rohde, Michael A251451 28.60
219 Root, Douglas251471 25.13
220 Tischbierek, Raj251350 25.52
221 Magerramov, Elmar S251165 29.97
222 Hazai, Laszlo251152 34.80
223 Petrienko, Vladimir251165 33.06
224 Loginov, Valery A251054 32.30
225 Donchev, Dimitar I251057 29.69
226 Nikolac, Juraj250862 55.94
227 Plaskett, Jim250853 28.04
228 Kovacevic, Vladimir250855 46.01
229 Hodgson, Julian M250849 24.68
230 Andrianov, Nikolai250871 26.28
231 Todorcevic, Miodrag250853 47.39
232 Sunye Neto, Jaime250854 30.91
233 Velikov, Petar250754 37.00
234 Ionov, Sergey250770 26.23
235 Franco Ocampos, Zenon250665 31.88
236 Lau, Ralf250550 28.45
237 Foisor, Ovidiu250551 28.98
238 Kantsler, Boris250457 25.95
239 Efimov, Igor250362 27.54
240 Pfleger, Helmut250362 44.65
241 Faragó, Iván250248 41.99
242 Kalinitschew, Sergey250264 32.16
243 Skembris, Spyridon250057 30.11
244 Meduna, Eduard250051 37.55
245 Hebden, Mark250052 30.13
246 Piket, Jeroen249952 19.18
247 Stoica, Valentin249958 38.13
248 King, Daniel J249951 24.59
249 Zagrebelny, Sergey249963
250 Xu Jun249853 25.54
251 Ghinda, Mihail Viorel249853 38.68
252 Frias, Victor J249758 32.14
253 Georgadze, Tamaz V249761 40.39
254 Simic, Radoslav249659 39.81
255 McKay, Roderick M249673 36.14
256 Georgiev, Krum249553 29.85
257 Klaric, Zlatko249561 31.44
258 Barbulescu, Dan249557 23.77
259 Adams, Michael249457 16.37
260 Basin, Leonid249261 30.36
261 Vukic, Milan249269 44.62
262 Petrosian, Arshak B249253 34.29
263 Mnatsakanian, Eduard A249271 49.32
264 Tringov, Georgy P249260 51.07
265 Shamkovich, Leonid A249258 64.83
266 Abramovic, Boško249152 37.13
267 Rukavina, Josip249162 45.34
268 Wilder, Michael249152 25.54
269 Govedarica, Radovan249166 40.13
270 Rajkovic, Dusan249054 45.79
271 Kishnev, Sergey249075 31.41
272 Reeh, Oliver248962 24.20
273 Hickl, Joerg248951 22.95
274 Andres Mendez, Miguel248864
275 Espig, Lutz248857 39.24
276 Lein, Anatoly248853 57.01
277 Granda Zuńiga, Julio E248850 21.10
278 Valkesalmi, Kimmo248854 26.91
279 Schussler, Harry248754 30.77
280 Ionescu, Constantin248753 29.55
281 Vera, Reynaldo248754 27.23
282 Unzicker, Wolfgang248659 62.76
283 Stohl, Igor248652 23.51
284 Petrushin, Alexander I248675 41.06
285 Karpman, Vadim248562 22.88
286 Yrjola, Jouni248551 28.44
287 Van der Sterren, Paul248550 32.04
288 Ernst, Thomas248451 27.62
289 Savchenko, Stanislav248468 21.19
290 Raicevic, Momcilo248365
291 Schneider, Lars Ake248256
292 Mochalov, Evgeny V248268 36.42
293 Popchev, Milko248253 23.39
294 Antoshin, Vladimir S248274 58.88
295 Flear, Glenn C248250 29.13
296 Hellers, Ferdinand248253 19.18
297 Khasin, Alexander248265 36.92
298 Drasko, Milan248152 25.32
299 Pekarek, Ales248152 26.29
300 Jansa, Vlastimil248050 45.34
301 Zapata, Alonso248049 29.61
302 Klundt, Klaus248066 46.27
303 Vokác, Marek248054 29.32
304 Petkevich, Jusefs248069 47.28
305 Wolf, Volker247965 30.57
306 Lukin, Andrei M247971 39.59
307 Gurgenidze, Bukhuti I247860 54.38
308 Rodriguez Vargas, Orestes247858 44.74
309 Gutman, Lev247850 42.51
310 Nun, Josef247767 54.69
311 Winants, Luc247752 25.25
312 Belov, Igor247762
313 Rivas Pastor, Manuel247655 27.72
314 Damljanovic, Branko247652 26.79
315 Nun, Jiri247655 30.68
316 Gomez Baillo, Jorge H247560 28.94
317 Filipovic, Branko247559 30.48
318 Dizdar, Goran247451 29.32
319 Fernandez Garcia, Jose Luis247458 33.91
320 Polgar, Zsuzsa247449 18.94
321 Ermenkov, Evgenij247455 38.51
322 Thorhallsson, Throstur247458 19.03
323 Akhmilovskaya, Elena247365
324 Ivkov, Borislav247355 54.38
325 Szekely, Peter247257 33.15
326 Davies, Nigel R247250 27.67
327 Sznapik, Aleksander247152 37.14
328 Klovans, Janis247162 52.97
329 Staniszewski, Piotr247153 21.57
330 Veinger, Itzhak247161 49.74
331 Helmers, Knut J247069 31.15
332 Mortensen, Erling247054 32.98
333 Portisch, Ferenc247065 48.97
334 Ricardi, Pablo246956 26.10
335 Kogan, Boris246957
336 Lombardy, William J246961 50.32
337 Eslon, Jaan246969 36.07
338 Keitlinghaus, Ludger246857 22.69
339 Gabdrakhmanov, Rafail246875 28.82
340 Kotronias, Vasilios246853 23.60
341 Mednis, Edmar J246860 51.02
342 Řgaard, Leif246863 36.24
343 Tseitlin, Mikhail S246769 40.79
344 Meister, Peter246761 21.77
345 Pytel, Krzysztof246768 42.88
346 Ornstein, Axel246657 35.93
347 Nikolic, Zivoslav246656 34.30
348 Lechtynsky, Jiri246652 40.35
349 Khenkin, Igor246663 20.03
350 Shabalov, Alexander246654 20.55
351 Horvath, Jozsef246551 23.63
352 Motwani, Paul246561 25.80
353 Tisdall, Jonathan D246552 29.60
354 Murshed, Niaz246567 21.88
355 Ree, Hans246456 43.54
356 Garcia, Gildardo246456 34.06
357 Zaitsev, Igor A246466 49.84
358 Pribyl, Josef246455 40.47
359 Kamsky, Gata246367 13.83
360 Schmidt, Wlodzimierz246350 44.97
361 Marangunic, Srdjan246362 44.42
362 Li Zunian246364 30.23
363 Gurevich, Dmitry246250 31.55
364 Piasetski, Leon David246271
365 Rubinetti, Jorge A246060 42.99
366 Polasek, Jaroslav246063 31.00
367 Levin, Felix246066 29.40
368 Hawelko, Marek245952 28.64
369 Reyes, Juan245973 24.92
370 Matulovic, Milan245957 52.81
371 Renet, Olivier245852 23.28
372 Cabrilo, Goran245861 29.75
373 Ambroz, Jan245862 33.79
374 Tempone, Marcelo245869 25.57
375 Knezevic, Milorad245851 51.42
376 Verduga, Denis Homero245858
377 Pedersen, Erik245770 29.55
378 Sideif Sade, Fikret I245761 36.25
379 Ardiansyah, Haji245767 36.32
380 Timoshenko, Georgy245676 21.83
381 Klinger, Josef245652 20.82
382 Yap, Andronico245663
383 Hertneck, Gerald245555 24.54
384 Hecht, Hans-Joachim245569 49.17
385 Dizdarevic, Emir245554 29.99
386 Malisauskas, Vidmantas245454 24.66
387 Kuczynski, Robert245452 21.95
388 Popov, Luben245374 52.18
389 Mohr, Stefan245362 20.44
390 Szmetan, Jorge245359 37.85
391 Kolev, Atanas245374 20.71
392 Renman, Nils Gustaf245261
393 Sigurjónsson, Gudmundur245261 40.52
394 Wolff, Patrick G245254 20.13
395 Sherzer, Alex245257 17.16
396 Gruenberg, Hans Ulrich245255 32.23
397 Djuric, Stefan245151 32.68
398 Magomedov, Magaram245067 21.86
399 Arkell, Keith C244964 27.23
400 Piesina, Gintautas244862 35.97
401 Plachetka, Jan244850 43.12
402 Braga, Fernando244858 29.73
403 Leski, Marc244867 26.77
404 Meyer, E.244776
405 Ochoa de Echaguen, F Javier244760 33.57
406 Gostisa, Leon244668 26.99
407 Trapl, Jindrich244661 46.02
408 Jelen, Iztok244669 41.20
409 Blatny, Pavel244552 19.77
410 Schmittdiel, Eckhard244555 27.88
411 Ostojic, Predrag244569 50.11
412 Lalev, Dimitar244462 28.21
413 Kallai, Gabor244462 29.11
414 Sharif, Mershad244457 35.72
415 Prandstetter, Eduard244452 39.29
416 Rechlis, Gad244456 21.15
417 Kouatly, Bachar244451 30.08
418 Hamann, Svend244369 47.48
419 Kosten, Anthony C244352 29.69
420 Lukov, Valentin244359 32.30
421 Spassov, Liuben244256 45.02
422 Nijboer, Friso244260 22.85
423 Kraidman, Yair244271 55.41
424 Horvath, Tamas244258 36.44
425 Luther, Thomas244157 18.41
426 Semkov, Semko244157 28.09
427 Lanc, Alois244152 40.12
428 Radulov, Ivan244058 49.23
429 Negulescu, Adrian244060 26.81
430 Shtyrenkov, Veniamen244075 29.93
431 Gleizerov, Evgeny244063 25.03
432 Kurtenkov, Atanas243971 24.66
433 Bukal, Vladimir Sr243956 48.41
434 Neckar, Lubomir243963 37.66
435 Semeniuk, Alexander A243965 35.56
436 Dzuban, Oleg I243974
437 Wittmann, Walter243860 40.05
438 Ye Jiangchuan243871 27.36
439 Sonntag, Hans Hubert243862
440 Schulte, Oliver243861 19.28
441 Strikovic, Aleksa243857 26.88
442 Spiridonov, Nikola243758 50.09
443 Karolyi, Tibor Jr243751 26.38
444 Toshkov, Tihomir243755 28.36
445 Kirov Ivanov, Nino243753 42.56
446 Pieterse, Gert243760 26.12
447 Piskov, Yury243564 26.47
448 Bielczyk, Jacek243558 35.11
449 Wockenfuss, Klaus243559 36.59
450 Lendwai, Reinhard243568 21.47
451 Ligterink, Gert243553 38.37
452 Hernandez, Roman243565 38.36
453 Thorsteins, Karl243552 23.47
454 Cramling, Dan243459 29.15
455 Wirthensohn, Heinz243459 36.91
456 Nickoloff, Bryon243462 31.77
457 Temirbaev, Serik243465
458 Bonin, Jay R243365 32.73
459 Casper, Thomas243253 29.04
460 Handoko, Edhi243266 27.59
461 Saltaev, Mihail243261 25.37
462 Birnboim, Nathan243255 37.34
463 Rachels, Stuart243263 18.51
464 Hausner, Ivan243158 35.95
465 Rakic, Tomislav243167 53.39
466 Orso, Miklos243170 31.81
467 Grivas, Efstratios243166 22.00
468 Litvinov, Vladimir243169 46.71
469 Makropoulos, Georgios243167 34.51
470 Milos, Gilberto243055 24.42
471 Schoen, Wolfram243057 20.82
472 Bilek, István243064 55.64
473 Liang Jinrong243061 27.86
474 Ghitescu, Theodor243061 54.19
475 Benko, Pal C242963 59.71
476 Martinovic, Slobodan242959 42.68
477 Reefschlaeger, Helmut242965 43.97
478 Pavlovic, Milos242955 24.24
479 Jakobsen, Ole242864 45.45
480 Kuligowski, Adam242857 32.27
481 Ziatdinov, Raset242862 29.26
482 Mencinger, Vojko242866 29.98
483 Litinskaya, Marta I242875 39.02
484 Sellos, Didier242869 31.11
485 Fokin, Sergey242764 32.46
486 Anic, Darko242769 30.92
487 Robatsch, Karl242755 59.46
488 Nowak, Ignacy242758 39.22
489 Paehtz, Thomas Sr242753 31.57
490 Mariotti, Sergio242671 41.64
491 Gallagher, Joseph G242655 23.91
492 Conquest, Stuart242650 21.08
493 Matlak, Marek242553 22.03
494 Forintos, Gyözö V242562 52.67
495 Qi Jingxuan242566 40.39
496 Norwood, David242459 19.49
497 Krnic, Zdenko242464 40.50
498 Bernard, Christophe242459 35.65
499 Vallifuoco, Giacomo242475 30.91
500 Rostalski, Walter242470 35.23

These ratings, calculated as of March 31, 1988, incorporate all games (against rated opponents) played in the time between April 1, 1987 and March 31, 1988, along with the ratings that were already calculated as of March 31, 1987. 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, 1988. This represents the player's estimated strength on April 1, 1988.

+/- 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, 1988. The +/- value represents the standard deviation of that estimate; the player's true strength on April 1, 1988 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, 1988. 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, 1988. 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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