| Name | ELO | Title | Federation | Games |
| Koop, Michael | 1509 |
 Germany
|
24 | |
| Koop, Soeren | 2123 |
Germany
|
34 | |
| Koop, Thilo | 2088 |
Germany
|
182 | |
| Koop, Thorben | 2348 | IM |
Germany
|
105 |
| Koopman, Hendrik | 2010 |
 Netherlands
|
28 | |
| Koopmann, Jens Peter | 2095 |
Germany
|
55 | |
| Koopmans, Cees | 2045 |
Netherlands
|
19 | |
| Koopmeiners, Karl | 1936 |
Germany
|
77 | |
| Koops, Randolf | 2062 |
Germany
|
65 | |
| Kooshani, Mahbuboollah | 1957 | FM |
 Afghanistan
|
41 |
| Kooyman, Marcel | 1803 |
 Belgium
|
2 | |
| Kopacz, Grzegorz | 1998 | FM |
 Poland
|
48 |
| Kopacz, Jaroslaw | 2198 |
Poland
|
49 | |
| Kopacz, Lukasz | 1858 |
Poland
|
36 | |
| Kopacz, Sandor | 1866 |
 Romania
|
9 | |
| Kopaisov, Mikhail | 2140 |
 Russian Federation
|
9 | |
| Kopal, Josef | 2257 | FM |
 Czech Republic
|
154 |
| Kopaloff, Nick | 1873 |
 Israel
|
12 | |
| Kopanski, Lorenz | 1901 |
Germany
|
27 | |
| Kopasov, Alexander | 2207 |
Russian Federation
|
98 | |
| Kopasov, Evgeny | 1935 |
Russian Federation
|
195 | |
| Kopasovskaja, Varvara | 2037 |
Russian Federation
|
16 | |
| Kopasz, Janos | 1879 |
 Hungary
|
5 | |
| Kopasz, Robert | 2229 | FM |
 Serbia
|
137 |
| Kopcak, Stanislav | 1937 |
 Slovakia
|
9 | |
| Kopczak, Ruediger | 1978 |
Germany
|
9 | |
| Kopczyk, Daniel | 2261 |
Poland
|
17 | |
| Kopczynski, Krzysztof | 2051 |
Poland
|
4 | |
| Kopczynski, Michal | 2225 | CM |
Poland
|
83 |
| Kopec, Danny | 2308 | IM |
 United States
|
157 |
| Kopec, Ladislav | 1867 |
Czech Republic
|
13 | |
| Kopec, Mariusz | 2012 |
Poland
|
30 | |
| Kopecky, Jiri | 1886 |
Czech Republic
|
66 | |
| Kopecky, Pavel | 2203 |
Czech Republic
|
29 | |
| Kopelevich, Boris | 1984 |
Israel
|
1 | |
| Koper, Ireneusz | 1923 |
Poland
|
12 | |
| Koper, Stefan | 1825 |
Czech Republic
|
114 | |
| Kopera, Michal | 2077 |
Slovakia
|
121 | |
| Kopf, Rainer | 1903 |
Germany
|
59 | |
| Kopias, Ferenc | 1782 |
Hungary
|
2 | |
| Kopic, Marijan | 1865 |
 Croatia
|
8 | |
| Kopic, Mirko | 1912 |
Croatia
|
5 | |
| Kopica, Paulina | 1925 |
Poland
|
8 | |
| Kopicka, Karel | 1996 |
Czech Republic
|
108 | |
| Kopiecki, Edward | 1833 |
United States
|
11 | |
| Kopinits, Silvia | 1766 |
 Austria
|
106 | |
| Kopinski, Tomasz | 2014 |
Poland
|
23 | |
| Kopisch, Martin | 2083 |
Germany
|
75 | |
| Kopischke, Maik | 1883 |
Germany
|
30 | |
| Kopjonkin, Gennady | 2295 | IM |
Russian Federation
|
217 |
| Kopjonkin, Kirill | 2314 | FM |
Russian Federation
|
1 |
| Kopkan, Pavel | 1937 |
Czech Republic
|
115 | |
| Koploy, Paul | 2320 | FM |
United States
|
17 |
| Kopmann, Rene | 2285 | FM |
Germany
|
59 |
| Kopnicka, Henrieta | 1868 |
Slovakia
|
7 | |
| Kopnicky, Frantisek | 1905 |
Slovakia
|
65 | |
| Kopnicky, Vladimir | 2104 |
Slovakia
|
76 | |
| Koporcic, Branko | 1967 |
Croatia
|
4 | |
| Kopp, Andre | 2236 |
Germany
|
27 | |
| Kopp, Berthold | 2198 |
Germany
|
114 | |
| Kopp, Daniel | 1887 |
Germany
|
7 | |
| Kopp, Jan | 2042 |
Germany
|
82 | |
| Kopp, Lubomir | 1556 |
Czech Republic
|
116 | |
| Kopp, Michel | 1929 |
 France
|
1 | |
| Kopp, Nico | 2115 |
Germany
|
23 | |
| Koppany, Tamas | 2043 |
Hungary
|
10 | |
| Koppen, Willem | 1696 |
 Switzerland
|
4 | |
| Koppenhoefer, Bernhard | 2141 |
Germany
|
55 | |
| Koppens, Paul | 2335 |
Netherlands
|
2 | |
| Kopras, Sandra | 1669 |
Poland
|
7 | |
| Kopriva, Martin | 2163 |
Czech Republic
|
31 | |
| Kopriva, Oldrich | 2012 |
Czech Republic
|
24 | |
| Kopriva, Petr | 2011 |
Czech Republic
|
89 | |
| Koprivica, Cedomir | 1933 |
Serbia
|
37 | |
| Koprivnjak, Stefan | 1624 |
Austria
|
7 | |
| Kops, John | 1953 |
 Denmark
|
19 | |
| Kopsa, Petri | 2002 |
 Finland
|
69 | |
| Kopta, Jiri | 1924 |
Czech Republic
|
9 | |
| Kopta, Pavel | 2193 | FM |
Czech Republic
|
143 |
| Koptsov, Mikhail | 2322 |
 Ukraine
|
14 | |
| Kopyl, Artem | 2327 | FM |
Russian Federation
|
36 |
| Kopylov, Alexander | 2388 |
Russian Federation
|
11 | |
| Kopylov, Alexander A | 2397 | IM |
 Fide
|
190 |
| Kopylov, Andrey | 2189 |
Russian Federation
|
39 | |
| Kopylov, Artem | 1612 |
Russian Federation
|
23 | |
| Kopylov, Daniel | 2355 | FM |
Germany
|
182 |
| Kopylov, Evgeny | 2451 | IM |
Russian Federation
|
2 |
| Kopylov, Mihail | 2457 | IM |
Ukraine
|
745 |
| Kopylov, Yuriy | 2059 |
Russian Federation
|
1 | |
| Kopylova, Natalia | 1845 |
Russian Federation
|
46 | |
| Korac, Dusan | 2002 |
 Montenegro
|
1 | |
| Koraka, Makrina | 1736 |
 Greece
|
9 | |
| Korba, Nicky | 2150 |
United States
|
1 | |
| Korba, Roman | 2147 |
Germany
|
70 | |
| Korbal, Arkadiusz | 2073 |
Poland
|
13 | |
| Korban, Katrina | 1904 |
 Estonia
|
23 | |
| Korbela, Lubomir | 1962 |
Slovakia
|
75 | |
| Korbovljanovic, Natasa | 1917 |
Serbia
|
34 | |
| Korbut, Ekaterina | 2448 | IM |
Russian Federation
|
551 |
| Korchagin, Oleg | 1962 |
Estonia
|
59 | |
| Korchagina, Alena | 2076 | WFM |
Russian Federation
|
12 |
| Korchenkova, Irina | 2102 | WFM |
Russian Federation
|
47 |
| Korchevsky, Mikhail | 2037 |
Russian Federation
|
9 | |
| Korchmar, Vasiliy | 2424 | IM |
Russian Federation
|
311 |
| Korchnoi, Viktor | 2499 | GM |
Switzerland
|
4641 |
| Korchynskyi, Mykola | 2329 | FM |
Ukraine
|
3 |
| Korcz, Daniel | 1843 |
Poland
|
10 | |
| Korcz, Sandor | 1910 |
Hungary
|
2 | |
| Kordahi, Nicholas | 1838 |
 Australia
|
58 | |
| Kordel, Mathias | 1976 |
Germany
|
49 | |
| Kordic, Nikola | 2101 |
Serbia
|
41 | |
| Kordis, Konstantinos | 2092 |
Greece
|
37 | |
| Kordonowski, Frank | 2034 |
Germany
|
87 | |
| Kordsachia, Tariel | 2281 | FM |
Germany
|
88 |
| Kordts, Florian | 1948 |
Germany
|
71 | |
| Kordts, Michael | 1995 |
Germany
|
38 | |
| Kordts, Wolfgang | 2181 |
Germany
|
158 | |
| Korduban, Valerij | 1938 |
Ukraine
|
12 | |
| Kordzadze, Nino | 1976 |
Austria
|
10 | |
| Kordzaia, Revaz | 1948 |
 Georgia
|
28 | |
| Kordzakhia, Giorgi | 2005 |
Georgia
|
7 | |
| Korecki, Lukasz | 2082 |
Poland
|
19 | |
| Korell, Klaus Peter | 1882 |
Germany
|
48 | |
| Korelov, Alexander P | 2375 |
Russian Federation
|
80 | |
| Korelskiy, Egor | 2175 | FM |
Fide
|
109 |
| Koren, Franjo | 1855 |
Croatia
|
4 | |
| Koren, Inna | 2180 | WIM |
United States
|
38 |
| Koren, Jan | 2072 |
Slovakia
|
26 | |
| Koren, Jaroslav | 2036 |
Czech Republic
|
20 | |
| Korenek, Frantisek | 1902 |
Czech Republic
|
75 | |
| Korenek, Petr | 2140 |
Czech Republic
|
44 | |
| Korenevski, Oleg | 1836 | CM |
Australia
|
31 |
| Korenkiewicz, Jaroslav | 1653 |
 Sweden
|
4 | |
| Korennoi, Viktor | 2261 | FM |
Russian Federation
|
26 |
| Korenova, Martina | 2148 | WIM |
Czech Republic
|
116 |
| Korensky, Sergey | 2009 | CM |
Russian Federation
|
19 |
| Korent, Ziga | 1792 |
 Slovenia
|
9 | |
| Korentsvit, Eugenia | 1942 |
Germany
|
4 | |
| Korentsvit, Valeriy | 2259 |
Russian Federation
|
40 | |
| Korevand, Sina | 2119 |
 Iran
|
12 | |
| Korfanta, Karol | 1943 |
Slovakia
|
3 | |
| Korff, Kim | 2170 |
Denmark
|
30 | |
| Korhonen, Aki | 2022 |
Finland
|
69 | |
| Korhonen, Erkki | 1694 |
Finland
|
125 | |
| Korhonen, Marko | 2047 |
Finland
|
46 | |
| Korhonen, Pasi | 2072 |
Finland
|
193 | |
| Koridze, Lile | 2121 | WFM |
Georgia
|
44 |
| Korim, Zsolt | 1791 |
Hungary
|
16 | |
| Korinek, Bohuslav | 1845 |
Czech Republic
|
27 | |
| Korinek, Jaroslav | 1541 |
Czech Republic
|
9 |
| Name | ELO | Title | Federation | Games |
| Korinek, Ondrej | 2313 | FM |
Czech Republic
|
94 |
| Korinek, Pavel | 1972 |
Czech Republic
|
17 | |
| Korjabkin, A. | 2362 |
Russian Federation
|
6 | |
| Korjakin, Artem | 2225 |
Russian Federation
|
19 | |
| Korjakin, Boris | 2229 |
Russian Federation
|
17 | |
| Korkina, Svetlana | 2280 | WIM |
Russian Federation
|
50 |
| Korkmaz, Necmettin | 2000 | CM |
 Turkey
|
76 |
| Korkmaz, Turhan | 1874 |
Turkey
|
12 | |
| Korkoliakos, Nikolaos | 1755 |
Greece
|
10 | |
| Korley, Kassa | 2428 | IM |
Denmark
|
488 |
| Kormaksson, Matthias | 2183 |
 Iceland
|
23 | |
| Korman, Maxim | 2205 |
Germany
|
90 | |
| Korman, Remi | 2060 |
France
|
6 | |
| Kormann, Werner | 2134 |
Austria
|
41 | |
| Kormanyos, Zoltan | 2314 | FM |
Hungary
|
100 |
| Kormos, Adam | 2122 |
Hungary
|
95 | |
| Kormos, Andras | 2058 |
Hungary
|
24 | |
| Kormos, Lajos | 1966 |
Hungary
|
80 | |
| Korn, Alfred | 1861 |
Germany
|
27 | |
| Korn, Andreas | 2048 |
Austria
|
20 | |
| Korn, Juergen Christof | 2106 |
Germany
|
132 | |
| Korn, Thomas | 1860 |
Germany
|
10 | |
| Kornasiewicz, Jacek | 2173 |
Poland
|
42 | |
| Kornasiewicz, Stanislaw | 2048 | FM |
Poland
|
204 |
| Kornath, Heinrich | 1890 |
Germany
|
37 | |
| Kornaukhov, Pavel | 1959 |
Russian Federation
|
9 | |
| Korneev, Dm V | 2210 |
Russian Federation
|
29 | |
| Korneev, Ilja | 2077 |
Russian Federation
|
18 | |
| Korneev, Oleg | 2481 | GM |
 Spain
|
2964 |
| Korneev, Svyatoslav | 2084 |
Spain
|
26 | |
| Korneeva, Irina | 2117 |
Russian Federation
|
37 | |
| Korneeva, Tamara | 1821 |
Russian Federation
|
26 | |
| Korneevets, Alexander | 2256 | IM |
 Belarus
|
63 |
| Kornel, Vlastimil | 1873 |
Czech Republic
|
5 | |
| Kornev, Alexander | 2306 |
Russian Federation
|
11 | |
| Kornev, Alexei | 2500 | GM |
Russian Federation
|
497 |
| Korneva, Marina | 2364 | IM |
Russian Federation
|
716 |
| Kornienko, Olga | 1938 |
Ukraine
|
41 | |
| Kornienko, Sergey | 2237 |
Russian Federation
|
46 | |
| Korniichuk, Oleksandra | 1956 |
Ukraine
|
1 | |
| Kornilov, Anatoly | 2089 | IM |
Russian Federation
|
7 |
| Kornilov, Ivan | 2379 | IM |
Russian Federation
|
63 |
| Kornilov, Peter | 1899 |
Russian Federation
|
57 | |
| Kornilovich, Dmitry | 2185 |
Russian Federation
|
22 | |
| Kornilovich, Vitaly | 2061 | FM |
Belarus
|
59 |
| Korning, Peter | 1938 |
Sweden
|
69 | |
| Korninger, Johannes | 2131 |
Austria
|
15 | |
| Korniotis, Filippos | 2067 |
Greece
|
11 | |
| Kornitzky, Tino | 2147 |
Germany
|
24 | |
| Korniukhin, Grigory | 2260 |
Russian Federation
|
18 | |
| Korniushin, Nikolay | 2255 | IM |
Russian Federation
|
183 |
| Kornprat, Manfred | 1986 |
Austria
|
17 | |
| Kornrumpf, Joachim | 2033 |
Germany
|
52 | |
| Kornthaler, Reinhard | 2130 |
Austria
|
60 | |
| Kornucik, Jan | 1980 |
Slovakia
|
9 | |
| Kornyukov, Alexey | 2452 | IM |
Russian Federation
|
17 |
| Korobkin, Maxim | 2293 | FM |
Russian Federation
|
92 |
| Korobkov, Piotr | 2361 |
Ukraine
|
200 | |
| Korobov, Anton | 2651 | GM |
Ukraine
|
2348 |
| Korobov, Ilya | 2386 | FM |
Russian Federation
|
71 |
| Korobov, Ivan | 1477 |
Russian Federation
|
1 | |
| Korochenskiy, Alexey | 2256 |
Russian Federation
|
23 | |
| Koroev, Alan | 1997 |
Russian Federation
|
8 | |
| Koroglou, Viktor | 2007 |
Greece
|
12 | |
| Koroglu, Huseyin | 1590 |
Turkey
|
28 | |
| Koroid, Janna | 1917 |
France
|
20 | |
| Korol, Dimitry | 2287 |
Ukraine
|
18 | |
| Korol, Jiri | 2024 |
Czech Republic
|
28 | |
| Korolchuk, Nikolav | 2226 |
Belarus
|
22 | |
| Korolev, Alexey | 2123 |
Russian Federation
|
9 | |
| Korolev, Anton | 2114 |
Russian Federation
|
25 | |
| Korolev, Dmitry | 1791 |
Russian Federation
|
35 | |
| Korolev, Nikolaj | 2136 |
Denmark
|
65 | |
| Korolev, Pavel | 2110 |
Russian Federation
|
17 | |
| Korolev, Sergei | 2288 |
Russian Federation
|
27 | |
| Koroljova, Valerija | 2127 |
Russian Federation
|
111 | |
| Korolkov, Dmitry | 2213 |
Russian Federation
|
11 | |
| Korom, Gabor | 2112 |
Hungary
|
2 | |
| Koronas, Vasilios | 1863 |
Greece
|
13 | |
| Koronghy, Gyula | 1980 |
Hungary
|
15 | |
| Korosciel, Aneta | 1951 |
Poland
|
146 | |
| Korosec, Stefan | 1831 |
Slovenia
|
2 | |
| Korosi, Gejza | 1752 |
Slovakia
|
1 | |
| Korosparti, Andras | 2038 |
Hungary
|
3 | |
| Korosparti, Sandor | 2116 |
Hungary
|
84 | |
| Korostelev, Nikolay | 1924 |
Russian Federation
|
9 | |
| Korostelev, Stanislav | 1966 |
Russian Federation
|
8 | |
| Korostenski, Frantisek | 1975 |
Czech Republic
|
68 | |
| Korotchenko, Anton | 2162 |
Russian Federation
|
9 | |
| Korotkjevich, Stanislav | 2358 |
Ukraine
|
211 | |
| Korotkova, Ekaterina | 1484 |
Russian Federation
|
27 | |
| Korotylev, Alexey | 2573 | GM |
Russian Federation
|
687 |
| Korou, Laskarina | 1889 |
Greece
|
115 | |
| Korov, Zvonko | 1998 |
Croatia
|
8 | |
| Korovashkin, Maxim | 2136 |
Ukraine
|
8 | |
| Korovianski, Dmitry | 2245 |
Russian Federation
|
29 | |
| Korovin, Mikhail | 2335 | FM |
Russian Federation
|
39 |
| Korovin, Viktor | 2056 |
Russian Federation
|
21 | |
| Korovkin, Stepan | 2325 | FM |
Russian Federation
|
17 |
| Korpa, Bence | 2546 | GM |
Hungary
|
547 |
| Korpalska, Joanna | 1851 |
Poland
|
23 | |
| Korpalski, Maciej | 1879 |
Poland
|
13 | |
| Korpalski, Robert | 2088 |
Poland
|
42 | |
| Korpan, Kasjan | 1915 |
Poland
|
2 | |
| Korpas, Laszlo | 1996 |
Hungary
|
49 | |
| Korpas, Zoltan | 2111 |
Hungary
|
66 | |
| Korpics, Zsolt | 2300 | FM |
Hungary
|
367 |
| Korres, Evangelos | 1916 |
Greece
|
25 | |
| Korres, Georg | 2124 |
Greece
|
26 | |
| Kors, Hans | 1931 |
Netherlands
|
6 | |
| Korsa, Jindrich | 2038 |
Czech Republic
|
56 | |
| Korsak, Gregoire | 1866 |
France
|
9 | |
| Korschner, Miroslav | 2064 |
Czech Republic
|
30 | |
| Korsholm, Asbjorn | 1983 |
Denmark
|
9 | |
| Korshunov, Sergey And. | 2286 |
Fide
|
11 | |
| Korsos, Imre | 2083 |
Hungary
|
19 | |
| Korste, Sebastian | 2002 |
Germany
|
34 | |
| Korstin, Maris | 2146 |
Estonia
|
69 | |
| Korsunsky, Aleksandr | 2179 |
Russian Federation
|
14 | |
| Korsunsky, Yuri | 2369 | IM |
Ukraine
|
117 |
| Korsus, Bernd | 2289 |
Germany
|
224 | |
| Kort, Jacob | 2153 |
Netherlands
|
91 | |
| Kort, Wilco | 1990 |
Netherlands
|
9 | |
| Korte, Andreas | 1733 |
Germany
|
18 | |
| Korte, Markus | 1882 |
Germany
|
94 | |
| Kortel, Bernard | 1577 |
France
|
1 | |
| Kortenbusch, Christoph | 2077 |
Germany
|
59 | |
| Kortesharju, Jaakko | 1970 |
Finland
|
6 | |
| Korth, Daniel | 2176 |
Germany
|
38 | |
| Kortis, Wim | 2104 |
Netherlands
|
1 | |
| Korttila, Matti | 2077 |
Finland
|
8 | |
| Koryakov, Sergey | 1945 |
Russian Federation
|
18 | |
| Korytko, Peter | 2081 |
Slovakia
|
75 | |
| Korze, Danilo | 1982 |
Slovenia
|
7 | |
| Korzeb, Peter | 1635 |
United States
|
27 | |
| Korzekwa, Marcin | 1882 |
Poland
|
3 | |
| Korzhukov, Andrey | 1966 |
Russian Federation
|
14 | |
| Korzubov, Peter | 2387 | IM |
Belarus
|
236 |
| Kos, Bruno | 1997 |
Croatia
|
7 | |
| Kos, Emin | 2179 |
 Bosnia And Herzegovina
|
7 | |
| Kos, Igor | 1989 |
Slovenia
|
30 | |
| Kos, Milorad | 1996 |
Serbia
|
13 | |
| Kos, Pawel | 2234 |
Poland
|
94 | |
| Kos, Sebastian | 2208 |
Germany
|
135 | |
| Kos, Slobodan | 1905 |
Croatia
|
5 | |
| Kos, Toni | 2286 | IM |
Slovenia
|
317 |
| Kosa, Gergely | 2004 |
Hungary
|
32 | |
| Kosa, Jeno | 2041 |
Serbia
|
18 | |
| Kosa, Laszlo | 1798 |
Hungary
|
107 | |
| Kosa, Peter | 2059 |
Hungary
|
141 |
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