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Name ELO Title Federation Games    
O'Brien, Kieran 1773 Ireland 11
O'Brien, Richard 2080 Ireland 1
O'Cinneide, Mel 2227 Ireland 9
O'Connell, Gerard 2092 Ireland 18
O'Connell, Kevin J 2328 FM Ireland 9
O'Connor, Jonathan 2184 Ireland 8
O'Connor, Joseph 2065 United Kingdom 7
O'Donnell, Robert 1986 United States 6
O'Donnell, Tom 2332 IM Canada 18
O'Donovan, Richard 2059 Ireland 13
O'Driscoll, Kieran 2098 Ireland 39
O'Grady, Gary 1932 Ireland 7
O'Leary, Matt 2053 Ireland 9
O'Reilly, Edward 2240 Ireland 8
O'Rourke, Ray 1925 Ireland 9
O'Shaughnessy, Conor 2209 Ireland 8
O'Shea, Kevin 2035 Ireland 10
Oancea, Nicolae 2089 Romania 11
Oates, David 2166 Wales 21
Oatlhotse, Providence 2164 IM Botswana 71
Obad, Andrija 2239 Bosnia And Herzegovina 3
Obad, Damir 1960 Croatia 6
Obando, Arnoldo 2230 Colombia 13
Obando, Carlos 1974 Peru 12
Obando, Richard 2102 Peru 9
Obarcanin, Nijaz 2008 Bosnia And Herzegovina 23
Obdrzalkova, Anita 1963 Slovakia 60
Obels, Jiri 2042 Netherlands 59
Obels, Pepijn 1744 Netherlands 35
Obenaus, Thomas 1766 Austria 15
Oberbarnscheidt, Ludger 2264 Germany 52
Oberberger, Guenther 1817 Austria 14
Oberbichler, Robert 1903 Austria 8
Obere, Roman Franz 1988 Germany 7
Oberfrank, Istvan 2091 Hungary 37
Oberhofer, Andre 2302 Germany 67
Oberhofer, Cedric 2216 Germany 4
Oberhofer, Max 2187 Germany 108
Oberhofer, Peter 1806 Germany 7
Oberholzer, Francois 2034 FM South Africa 1
Oberholzer, Rex 2044 Namibia 38
Oberlin, Cecile 1656 France 1
Obermair, Walter 1873 Austria 22
Oberman, Hotimir 1918 Croatia 12
Obermayr, Hermann 2166 Austria 146
Oberndoerfer, Frank 2025 Germany 60
Oberngruber, Thomas 2099 Austria 10
Obernoeder, Thomas 1757 Germany 15
Oberpriller, Josef 1987 Germany 27
Oberrauch, Martin 2185 Italy 26
Obers, Frits 2100 Netherlands 138
Obersnel, Jan 1721 Slovenia 9
Oberst, Janosch 1835 Germany 7
Oberst, Thomas 2307 FM Germany 154
Oberste, Norbert 1751 Germany 83
Oberweis, Paul 2043 Luxembourg 32
Obgolts, Erik 2239 Russian Federation 7
Obiamiwe, Paul 1926 Nigeria 63
Obiedzinski, Pawel 1947 Poland 9
Obiedzinski, Piotr 1843 Poland 5
Obierak, Wladyslaw 2089 Poland 40
Obili, Abhishek 1986 United States 3
Objois, Pierre Henri 1720 France 4
Oblak, Marko 1636 Italy 9
Oblamski, Vladimir 2116 Belarus 11
Oblin, Pierre 1815 France 1
Oblitas, Carlomagno 2395 IM Peru 324
Obodchuk, Andrei 2389 IM Russian Federation 379
Obolenskikh, Dmitry 2542 IM Russian Federation 82
Obolentseva, Alexandra 2345 WFM Russian Federation 14
Obolonin, Filipp 1811 Estonia 2
Obon Temprano, Sergi 2237 FM Spain 53
Obon Zuniga, Francisco 1798 Spain 19
Obona, Jan 2222 Slovakia 72
Oborina, Elena 2030 Russian Federation 11
Oborny, Lubor 1926 Czech Republic 3
Oboron, Georges 2005 Poland 13
Obradovic, Alexandar 2225 Serbia 1
Obradovic, Blazimir 2139 FM Serbia 4
Obradovic, Dragan 2052 Serbia 36
Obradovic, Milan 1658 Switzerland 5
Obradovic, Momcilo 1892 Serbia 3
Obradovic, Vasilije 2087 Serbia 12
Obralic, Esad 2331 FM Bosnia And Herzegovina 13
Obran, Harald 2003 Austria 80
Obregon, Andres Carlos 2507 GM Argentina 238
Obregon Rivero, Juan 2391 FM Cuba 117
Obreht, Slobodan 1977 Germany 23
Obreja, Mihai 1816 Romania 13
Obrezchikov, Mikhail 1900 Russian Federation 10
Obrien, Matthew J 2084 United States 4
Obringer, Jean Marc 2074 France 24
Obrochta, Bogdan 2073 Poland 19
Obrovac, Zvonko 2153 Canada 7
Obrsal, Josef 1499 Czech Republic 41
Obrusnik, Dawid 1748 Poland 9
Obrusnik, Michal 2268 FM Poland 48
Obrusnik, Pawel 1599 Poland 8
Obsivac, Josef 2355 FM Czech Republic 374
Obst, James 2097 Australia 92
Obst, Martin 2021 Germany 28
Obuca, Bajro 2117 CM Bosnia And Herzegovina 24
Obukhov, Alexander 2364 GM Russian Federation 533
Obukhov, Sergeij 2080 Ukraine 11
Oburka, Vladislav 1859 Czech Republic 8
Ocabo Vera, Pedro Aristides 1784 Spain 9
Ocakacan, Deniz 1856 Turkey 9
Ocampo, Fermin 1953 Argentina 1
Ocampo, Raul 2315 Argentina 63
Ocampo Vargas, Raul 2093 IM Mexico 124
Ocampos, Ian 2054 Argentina 21
Ocampos, Martin 1751 Paraguay 2
Ocana Lameiro, Oliver 1982 Spain 2
Ocana Roca, Juan Jesus 2145 Spain 33
Ocantos, Manuel 2243 Luxembourg 50
Ocariz Gallego, Jesus 1953 Spain 25
Occari, Maurizio 2052 Italy 22
Occhipinti, Giuseppe 1995 Italy 1
Occhipinti, Massimo 1938 Italy 22
Ocejo, Leyla 2061 Cuba 8
Ocelik, Vaclav 1826 Netherlands 9
Ocepek, Martin 2113 Slovenia 8
Ochelli, Francisco 1753 Paraguay 24
Ochirova, Irina 1487 Russian Federation 10
Ochkoos, Jura 2203 FM Canada 235
Ochkov, Radoslav 1913 Bulgaria 32
Ochman, Tomas 1858 Czech Republic 21
Ochmann, Denis 1485 Germany 7
Ochmann, Reimund 2049 Germany 49
Ochneva, Inga 2114 WFM Russian Federation 8
Ochoa, Carl Victor 2276 Philippines 35
Ochoa, Ismael 1816 Honduras 5
Ochoa, Matias 1961 Argentina 25
Ochoa de la Rosa, Manuel Dario 2317 FM Cuba 16
Ochodek, Mariusz 1983 Poland 9
Ochonski, Piotr 2160 Poland 36
Ochrana, Ladislav 1975 Slovakia 46
Ochs, Holger 2225 Germany 63
Ochsner, Bjorn Moller 2430 FM Denmark 114
Ochsner, Thomas 2304 Denmark 327
Ochtman, Henk 2113 Netherlands 27
Ociepka, Dominika 1409 Poland 1
Ockay, Tomas 2128 Czech Republic 39
Ocnarescu, Victor 2164 Romania 81
Ocokoljic, Zoran 2070 Serbia 19
Ocon Galilea, Francisco Jose 1949 Spain 23
Ocwieja, Piotr 1698 Poland 4
Ocytko, Andrzej 2114 Poland 77
Ocytko, Anna 1967 Poland 19
Ocytko, Michal 1124 Poland 9
Odachowski, Arthur 2205 Canada 64
Odadzic, Zoran 1972 Serbia 4
Odde, Eilif 2044 Norway 40
Oddone, Cristhian 2235 Uruguay 28
Odeev, Handszar 2397 GM Turkmenistan 425
Odeeva, Larisa 2198 WFM Turkmenistan 14
Odegaard, Per Chr 1768 Norway 2
Odeh, Kenneth 1961 FM Nigeria 40
Odehnal, Jaroslav 1922 Czech Republic 13
Odehnal, Miroslav 2226 Czech Republic 22
Oden, Edgar 2008 Germany 22
Odendahl, Reiner 2372 FM Germany 324
Odendahl, Steven M 2420 IM United States 95
Odermatt, Klaus 1878 Switzerland 14
Odermatt, Stefan 2132 Switzerland 6
Odesskij, Ilia 2429 IM Russian Federation 125
Odinaev, Timur 2302 FM Russian Federation 9
Odinaeva, Saodat 1893 Tajikistan 20
Odink, Karel 2116 Netherlands 10
Odinokov, Nikolai 2312 Russian Federation 82
Odisharia, Teona 2178 Georgia 78
Odler, Daniel 2094 Slovakia 84
Odnorozhenko, Evgenyi 2325 IM Ukraine 95
Odnorozhenko, Kateryna 2110 WIM Ukraine 148
Odor, Istvan 2129 Hungary 1
Odunaiya, Victor 1853 United Kingdom 4
Oe, Oluf 1913 Denmark 24
Oechler, Hans Erich 2121 Germany 24
Oechslein, Rainer 2273 Germany 228
Oehler, Markus 2063 Germany 35
Oehlerich, Per 1920 Denmark 22
Oehlmann, Dieter 2041 Germany 48
Oehmichen, Jan 1863 Denmark 24
Oehne, Ingo 1814 Germany 7
Oehne, Timo 2140 Germany 11
Oehrlein, Alexander 2144 Germany 29
Oehrlein, Thomas 2232 Germany 91
Oei, Hway Ik 2071 Netherlands 195
Oelert, Ralf 1981 Germany 50
Oellrich, Torben 1665 Germany 15
Oelrichs, Manfred 1667 Germany 155
Oelze, Joern 1971 Germany 48
Oendy, Oscar 2081 Australia 30
Oepen, Lothar 2067 Germany 79
Oergel, Ullrich 1942 Germany 14
Oertel, David 1979 Germany 27
Oertel, Thomas 1999 Germany 29
Oesch, Harry 1941 Switzerland 5
Oest, Thorsten 2111 Germany 36
Oesterle, Peter 2385 Germany 79
Name ELO Title Federation Games    
Oesterreicher, Moritz 1803 Austria 6
Oettel, Andreas 2244 Germany 32
Oettel, Lothar 1937 Germany 25
Oettinger, Hagen 2111 Germany 72
Oetzel, Roland 2270 Germany 23
Oez, Edda 1517 Germany 60
Oezen, Alf 1981 Germany 13
Ofak, Marko 2029 Slovenia 11
Ofek, Ram 2158 Israel 43
Offermann, Fernando 2143 Germany 39
Officer, Amy 1825 WFM Scotland 71
Offinger, Robert 2184 Germany 91
Offringa, Joost 2315 Netherlands 47
Offringa, Tjaart Jan 2070 Netherlands 57
Ofitserian, Boris 2365 FM Russian Federation 45
Ofner, Maximilian 2177 Austria 3
Ofstad, Per 2104 Norway 369
Ofstad, Sigurd 2012 Norway 2
Ogaard, Leif 2405 GM Norway 588
Ogada Osir, Ibrahim 2123 Australia 18
Ogando Gonzalez, Francisco J 1951 Spain 4
Oganessian, Gaguik 2002 FM Armenia 2
Oganessiats, Ernest 2260 Armenia 11
Oganezova, Tamila 2057 Russian Federation 46
Oganian, Arsen 2228 Russian Federation 11
Oganian, Miran 2452 IM Russian Federation 127
Oganian, Roman 2215 Russian Federation 12
Oganisjn, Roman 2275 Russian Federation 98
Oganyan, Arsen 2282 Russian Federation 18
Ogden, Marcus W 1737 Australia 3
Ogdon, Ricardo 1612 Paraguay 25
Oger, Claude 1939 France 85
Oger, Daniel 1897 Belgium 21
Oger, Philippe 1815 France 1
Oges, Helene 1699 France 28
Oggier, Cesar 2225 Argentina 13
Ogiewka, Rafal 2065 Poland 11
Oginski, Ulrich 1882 Germany 9
Ogleznev, Alexandr 2313 FM Moldova 113
Oglobilia, Alexander 2242 Ukraine 65
Ogloblin, Nikolay 2345 IM Russian Federation 149
Ogloblina, Lidiya 2146 Russian Federation 9
Ognean, Mihnea-Ionut 2105 Romania 10
Ognerubova, Anastasia 2052 WFM Russian Federation 17
Ognibene, Piero 1770 Italy 2
Ognjacevic, Alen 2043 Croatia 17
Ognjan, Renato 2076 Croatia 7
Ogonowska, Katarzyna 1847 Poland 77
Ogorodov, Petr 1847 Russian Federation 15
Ograbek, Grzegorz 2140 Poland 19
Ogradi, Gregor 1971 Slovenia 16
Ogunshola, Ben 2152 Nigeria 30
Ogunwobi, Tolulope 2164 Nigeria 6
Oguzov, Shamil 2258 Russian Federation 9
Oharek, Vlastimil 1789 Czech Republic 2
Ohat, Imre 1963 Hungary 1
Ohayv, Nikolaj 1902 Denmark 8
Ohl, Christophe 2107 France 15
Ohlund, Nicolas 1972 France 8
Ohlzon, Nils Johan 2158 Sweden 84
Ohman, Anders 2046 Sweden 28
Ohme, Kerstin 1753 Germany 18
Ohnesorg, Felix 1830 Germany 11
Ohnmacht, Rolf 1927 Germany 13
Ohnmacht, Simon 1883 Germany 52
Ohresser, Olivier 1854 France 4
Ohrn, Stellan 1981 Sweden 9
Ohunov, Bobur 2151 Uzbekistan 9
Oillic, Goulven 1785 France 1
Oitzl, Danijel 1816 Austria 12
Ojagverdiyev, Zaur 2043 Azerbaijan 15
Ojanen, Jyrki 2052 Finland 40
Ojanen, Pekka 2225 Finland 32
Ojaos Penalver, Abel 1945 Spain 18
Ojas Kulkarni 1961 India 1
Ojeda, Hector 2117 Chile 12
Ojeda, Hernan 2173 Argentina 92
Ojeda, Javier 2197 Paraguay 22
Ojeda, Jesus David 2032 Colombia 9
Ojeda Ruiz, Jose Luis 1601 Spain 37
Ojer Lora, Iker 2084 Spain 30
Ojo, Damilola 2041 Nigeria 0
Ojrzynski, Blazej 2120 Poland 12
Ojstosek, Mirko 1719 Germany 31
Okamura, Milton Kasuo 2034 Brazil 81
Okanli, Muratcan 1635 Turkey 1
Okara, Andrey 2340 IM Russian Federation 123
Okay, Arda Efe 1885 Turkey 6
Okay, Koray 2105 Turkey 7
Okcular, Ayhan 2145 Turkey 31
Oker, Bertil 1589 Germany 7
Okhotnik, Vladimir 2420 GM France 1116
Okhrimenko, Sergei 2237 Ukraine 9
Okicic, Nermin 2195 Bosnia And Herzegovina 14
Okike, David 2190 Nigeria 82
Okilj, Nevenko 2151 Serbia 7
Okilj, Tigran 2137 Serbia 2
Okkes, Menno 2303 FM Netherlands 196
Okladnikov, Gennady 2067 Russian Federation 59
Okon, Dariusz 2194 Poland 2
Okoniewski, Pawel 1775 Poland 9
Okorn, Jan 1768 Slovenia 9
Okorn, Nejc 1830 Slovenia 18
Okos, Alexander 2055 Slovakia 77
Okosieme, Iozeph 2020 United Kingdom 36
Okoth, Joachim 2232 Uganda 56
Okpu, Robert 1674 Sweden 7
Okrajek, Alexander 2213 Germany 137
Okrosa, Marijan 2078 Croatia 58
Okrouhlik, Zdenek 1859 Czech Republic 9
Okruashvili, Georgy 2118 Russian Federation 10
Okrucinski, Tadeusz 2244 FM Poland 31
Okrugic, Tomislav 1915 Croatia 14
Okrugin, Alexander 2018 Russian Federation 8
Okrugin, Sergey 2313 IM Russian Federation 185
Oksa, Jaakko 2046 Finland 17
Oksanen, Timo 2010 Finland 66
Oksnevad, Arild 1804 Norway 3
Okulov, Andrey 2251 Russian Federation 9
Okumus, Gorkem Deniz 1870 Turkey 21
Okun, Evgeny 2147 Russian Federation 55
Okun, Leonid 2266 FM Russian Federation 52
Okunev, Lev 2214 Russian Federation 38
Okunev, Taras 2103 Russian Federation 21
Okuniewski, Boguslaw 2217 Poland 33
Okur, Kadir 1844 Turkey 1
Okus, Melih 2036 Turkey 14
Olabe Odriozola, Eduardo 1939 Spain 19
Olaciregui, Eduardo 1999 Argentina 19
Olafsson, Arni 1224 Iceland 5
Olafsson, David 2278 FM Iceland 126
Olafsson, Fridrik 2373 GM Iceland 1042
Olafsson, Helgi 2540 GM Iceland 1319
Olafsson, Smari 1994 Iceland 2
Olah, Janos 1952 Hungary 27
Olah, Jozsef 1879 Hungary 15
Olah, Peter 2201 Hungary 7
Olah, Sandor 1989 Hungary 165
Olah, Zsigmond 2087 Hungary 59
Olaizola Ortega, Luis 2143 Spain 165
Olander, Aleksi 2078 Finland 15
Olape, Bunmi 2165 IM Nigeria 87
Olar, Adrian 1809 Romania 5
Olarasu, Gabriela 2256 WGM Romania 689
Olarasu, Ioana 1769 Romania 12
Olarasu, Iuliana 2058 Romania 5
Olaru, Daniel 2081 France 4
Olatunji, Oluwatobiloba 1918 WFM Nigeria 11
Olausson, Claes Goran 2274 Sweden 87
Olave Parra, Hugo 1795 Chile 17
Olay, Edgar Reggie 2275 Philippines 40
Olay Valdes, Rodrigo 1834 Spain 94
Olaya, Noemi 1550 Ecuador 8
Olaya, Sandra 1669 Ecuador 7
Olazarri, Marcelo 2208 Uruguay 86
Olbrich, Jakob 1946 Germany 7
Olbrich, Joachim 2150 FM Germany 114
Olbrich, Marina 2330 WIM Germany 305
Olbrich, Peter 1951 Germany 15
Olbrig, Michael 1853 Germany 18
Olbrisch, Manfred 2107 Germany 61
Olcayoz, Alper 2273 FM Turkey 227
Olcum, Ahmet 2190 Turkey 13
Oldach, Ehrenfried 2021 Germany 163
Olde, Hendrik 2320 FM Estonia 69
Olde, Margareth 2110 WFM Estonia 12
Oldenhuis, Lance 2001 Netherlands 48
Oldigs, Adolf 1653 Germany 21
Olea Perez, Mario 2263 FM Spain 289
Olear, Laszlo 2047 Hungary 35
Olebile, Thato 2193 FM Botswana 10
Oledzki, Adam 1801 Poland 20
Oledzki, Tomasz 2030 Poland 23
Oleinik, Alexander 2111 Russian Federation 10
Oleinik, Petr 1757 Russian Federation 1
Oleinikov, Dmitrij 2235 Russian Federation 10
Olejarczyk, Bogdan 2052 Poland 68
Olejnicek, Jiri 1999 Czech Republic 19
Olejniczak, Romuald 1615 Poland 6
Olejnik, Bernard 1788 Poland 1
Oleksiyenko, Mykhaylo 2643 GM Ukraine 672
Oleksy, Krzysztof 1732 Poland 4
Olenderek, Tomasz 2072 Poland 53
Oleneva, Svetlana 2086 WFM Russian Federation 57
Oleniak, Wlodzimierz 1820 Ukraine 8
Olenichev, Dmitriy 2301 FM Ukraine 36
Olenin, Nikolay 2347 IM Russian Federation 205
Olenina, Aysa 2055 Russian Federation 3
Olesen, Bent 2037 Denmark 6
Olesen, Martin 2304 IM Denmark 381
Olesen, Michael 2011 Denmark 7
Olesen, Michael Jacob 1920 Denmark 21
Olesen, Poul Erik Norgaard 2030 Denmark 24
Olesen, Tommy Svane 2009 Denmark 2
Olesiak, Marcin 2016 Poland 7
Olesnan, Ervin 1588 Czech Republic 1
Oleszczuk, Maciej 1616 Poland 9
Olguin, Monica 1715 France 15
Olhovaja, Elena 2125 Russian Federation 12
Olhovik, Andrei 2299 Belarus 19
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