The IV Manaus Chess Open 2025 will take place from October 11 to October 13 in Manaus, Brazil. It is a 9-round Swiss system tournament with a time control of 90 min + 30 sec/move. For more events from Brazil, check out The South American Chess Calendar, which is part of The Chess Calendar.
The top-seeded players are GM Rafael Leitao (2599), GM Axel Bachmann (2578), GM Alexandr Fier (2577), GM Renato R. Quintiliano (2489), GM Neuris Delgado Ramirez (2488), GM Yago De Moura Santiago (2486), GM Andres Rodriguez Vila (2445), GM Luis Galego (2426), GM Gabriel Flom (2425), IM Nathan Felipe Filgueiras (2399), IM Licael Roderick Ticona Rocabado (2398), GM Everaldo Matsuura (2384), IM Matias Perez Gormaz (2381), IM Roberto Junio Brito Molina (2379), GM Jaime Sunye Neto (2370), IM Dragan Stamenkovic (2368), FM Luigy Lira De Siqueira (2366), GM Alejandro Hoffman (2312), FM Mathias Andre Casalaspro (2261), FM Mario Alexis Arias Gaviria (2259). Scroll down for the full participants list.
More: XV IRT Internacional Raza Medellín 2025 / 2do IRT Cerrado Clásico del Rio Magdalena – Absoluto / 1er Tournoi du mardi à Laval 2025-2026 – Section A / 12º CHESS BOSS – CHESS TOUR – Grupo A / Campeonato Nacional Superior (Perú) 2025 – Absoluto
IV Manaus Chess Open 2025 Participants
| Rk. | SNo | Name | FED | RtgI | RtgN | |
| 1 | 1 | GM | Rafael, Leitao | BRA | 2599 | 2557 |
| 2 | 2 | GM | Axel, Bachmann | PAR | 2578 | 2677 |
| 3 | 3 | GM | Alexandr, Fier | BRA | 2577 | 2615 |
| 4 | 4 | GM | Renato R., Quintiliano | BRA | 2489 | 2502 |
| 5 | 5 | GM | Neuris, Delgado Ramirez | PAR | 2488 | 2561 |
| 6 | 6 | GM | Yago De Moura, Santiago | BRA | 2486 | 2473 |
| 7 | 7 | GM | Andres, Rodriguez Vila | URU | 2445 | 2484 |
| 8 | 8 | GM | Luis, Galego | POR | 2426 | 2326 |
| 9 | 9 | GM | Gabriel, Flom | FRA | 2425 | 0 |
| 10 | 10 | IM | Nathan Felipe, Filgueiras | BRA | 2399 | 2363 |
| 11 | 11 | IM | Licael Roderick, Ticona Rocabado | BOL | 2398 | 2417 |
| 12 | 12 | GM | Everaldo, Matsuura | BRA | 2384 | 2395 |
| 13 | 13 | IM | Matias, Perez Gormaz | CHI | 2381 | 2390 |
| 14 | 14 | IM | Roberto Junio Brito, Molina | BRA | 2379 | 2408 |
| 15 | 15 | GM | Jaime, Sunye Neto | BRA | 2370 | 2392 |
| 16 | 16 | IM | Dragan, Stamenkovic | SRB | 2368 | 2360 |
| 17 | 17 | FM | Luigy Lira, De Siqueira | BRA | 2366 | 2264 |
| 18 | 18 | GM | Alejandro, Hoffman | ARG | 2312 | 2492 |
| 19 | 19 | FM | Mathias Andre, Casalaspro | BRA | 2261 | 2246 |
| 20 | 20 | FM | Mario Alexis, Arias Gaviria | PER | 2259 | 1906 |
| 21 | 21 | FM | Lucas Aguiar, Cunha | BRA | 2256 | 2315 |
| 22 | 22 | FM | Juliana Sayumi, Terao | BRA | 2245 | 2302 |
| 23 | 23 | IM | Silvio Cunha, Pereira | BRA | 2206 | 2219 |
| 24 | 24 | FM | Jack, Van Zyl-Rudd | RSA | 2203 | 0 |
| 25 | 25 | FM | Alvaro Z., Aranha Filho | BRA | 2192 | 2262 |
| 26 | 26 | CM | Victor Gabriel C., De Oliveira | BRA | 2173 | 2254 |
| 27 | 27 | CM | Luciano De Souza, Zallio | BRA | 2162 | 2175 |
| 28 | 28 | NM | Suan Bruno Fernandes, Lira | BRA | 2152 | 2098 |
| 29 | 29 | FM | Charles, Gauche | BRA | 2151 | 2173 |
| 30 | 30 | Claudionor Alcides Lima, Pirola | BRA | 2130 | 2141 | |
| 31 | 31 | WIM | Kathie Goulart, Librelato | BRA | 2104 | 2194 |
| 32 | 32 | NM | Marcio Neron Camargo, Dornelles | BRA | 2092 | 2136 |
| 33 | 33 | NM | Tiago Batista, Oliveira | BRA | 2091 | 2142 |
| 34 | 34 | NM | Vitor Luis De Jesus, Silverio | BRA | 2083 | 2096 |
| 35 | 35 | FM | Andrey M., Souza Neves | BRA | 2074 | 2163 |
| 36 | 36 | Diego, Caceres | BOL | 2070 | 2089 | |
| 37 | 37 | NM | Eduardo Barbosa, Mesquita | BRA | 2060 | 2110 |
| 38 | 38 | NM | Felipe Lobo C., Carvalho | BRA | 2038 | 2120 |
| 39 | 39 | Jaime De Castilho Firmino, Pinto | BRA | 2038 | 2022 | |
| 40 | 40 | NM | Aiman Mohamed, El Zwei | BRA | 2025 | 2130 |
| 41 | 41 | NM | Felipe Jairo Novo, Simas Neto | BRA | 1992 | 2073 |
| 42 | 42 | WFM | Maisa, Nejanky | ARG | 1971 | 1972 |
| 43 | 43 | NM | Raimundo Nascimento, Felix | BRA | 1941 | 2036 |
| 44 | 44 | NM | Pedro Jorge De Moraes, Pinto | BRA | 1940 | 2032 |
| 45 | 45 | NM | Eudes Pinto, Marques | BRA | 1936 | 2054 |
| 46 | 46 | NM | Mario Ribeiro, Cantarino Neto | BRA | 1924 | 2005 |
| 47 | 47 | Artur Diego De Souza, Andrade | BRA | 1920 | 1885 | |
| 48 | 48 | Paulo Roberto Costa, Veiga Da Silva | BRA | 1919 | 1898 | |
| 49 | 49 | Celio Oliveira, Barbosa | BRA | 1914 | 1969 | |
| 50 | 50 | NM | Elias, Moyses Sobrinho | BRA | 1904 | 1984 |
| 51 | 51 | Irineu Evangelista C, De Brito | BRA | 1904 | 1879 | |
| 52 | 52 | CM | Enrique Alberto Soto, Gutierrez | BRA | 1901 | 1969 |
| 53 | 53 | Juliano Joao, Bazzo | BRA | 1900 | 1935 | |
| 54 | 54 | NM | Marcio De Souza, Pessoa | BRA | 1897 | 2018 |
| 55 | 55 | Mateus Nascimento, De Souza | BRA | 1895 | 2036 | |
| 56 | 56 | WFM | Agatha Hurba, Nunes | BRA | 1894 | 2006 |
| 57 | 57 | NM | Fabiano De Oliveira, Bezerra | BRA | 1894 | 1964 |
| 58 | 58 | Tiago Augusto Adami, De Oliveira | BRA | 1861 | 1925 | |
| 59 | 59 | Glaucia Nadine Nasc, De Oliveira | BRA | 1861 | 1840 | |
| 60 | 60 | Gabriel Bento, Ordozgoite | BRA | 1843 | 1945 | |
| 61 | 61 | Paulo, Felizes | POR | 1839 | 55 | |
| 62 | 62 | Hudson Anselmo, Pessoa | BRA | 1835 | 1914 | |
| 63 | 63 | NM | Virginia Lagrange M., Reis | BRA | 1833 | 1907 |
| 64 | 64 | Elismar Da Silva, Benayon | BRA | 1831 | 1916 | |
| 65 | 65 | Alexandre Letizio, Vieira | BRA | 1830 | 1949 | |
| 66 | 66 | Vernei Dutra, Sturza | BRA | 1811 | 1868 | |
| 67 | 67 | Luis Alberto Passos, Presa | BRA | 1801 | 1799 | |
| 68 | 68 | Camila Evaristo, Da Silva | BRA | 1783 | 1958 | |
| 69 | 69 | Frayser Serquen, Vicuna | BRA | 1773 | 1892 | |
| 70 | 70 | Samuel Gomes Pereira, De Souza | BRA | 1770 | 1844 | |
| 71 | 71 | Andrea Vidigal, Bucci | BRA | 1767 | 1884 | |
| 72 | 72 | Sandra De Jesus F., Da Silva | BRA | 1766 | 1858 | |
| 73 | 73 | Vinicius De Camargo, Machado | BRA | 1761 | 1864 | |
| 74 | 74 | Rafael Klanfer, Nunes | BRA | 1760 | 1883 | |
| 75 | 75 | Alex Torres, Carvalho | BRA | 1755 | 1829 | |
| 76 | 76 | Juliane De Oliveira, Dias | BRA | 1754 | 1852 | |
| 77 | 77 | Bonifacio Coelho, De Lima | BRA | 1752 | 1800 | |
| 78 | 78 | Gustavo Lohan Matos, Guerreiro | BRA | 1748 | 1818 | |
| 79 | 79 | Marlon De Jesus, Santos | BRA | 1742 | 1946 | |
| 80 | 80 | Marcel Robinson, Grosselli | BRA | 1727 | 1835 | |
| 81 | 81 | NM | Alan Gomes Florencio, Santos | BRA | 1724 | 1817 |
| 82 | 82 | Ricardo, Brandalise | BRA | 1713 | 1887 | |
| 83 | 83 | Nayron Igor Tomaz, Da Silva | BRA | 1706 | 1796 | |
| 84 | 84 | Carlos Alberto, Rodrigues Franca | BRA | 1701 | 1845 | |
| 85 | 85 | NM | Erico Vinicius Duarte, Vieira | BRA | 1693 | 1718 |
| 86 | 86 | WNM | Luciana De Maria Rocha, Da Silva | BRA | 1687 | 1773 |
| 87 | 87 | Jaderson Para, Rodrigues | BRA | 1674 | 1800 | |
| 88 | 88 | Carlos, Gomes | BRA | 1673 | 1774 | |
| 89 | 89 | Paulo Victor Penafort, Mendes | BRA | 1545 | 1715 | |
| 90 | 90 | NM | Sergio Luiz Cardoso, Farias | BRA | 1541 | 1627 |
| 91 | 91 | Celso Freire, Dos Santos | BRA | 1502 | 1761 | |
| 92 | 92 | Gabriel Junior Rodrigues, Dos Santos | BRA | 0 | 1800 | |
| 93 | 93 | Maira Jeffres Martins, Barbosa | BRA | 0 | 1792 | |
| 94 | 94 | Leticia Mota, De Oliveira | BRA | 0 | 1769 | |
| 95 | 95 | Lucas Ferro, Reis | BRA | 0 | 1761 | |
| 96 | 96 | Adriany Vargas, Da Silva | BRA | 0 | 1743 | |
| 97 | 97 | Valentina Martins de Araujo, Coelho | BRA | 0 | 1732 | |
| 98 | 98 | Ryan Freitas Marinho da Cunha, Breves | BRA | 0 | 1729 | |
| 99 | 99 | Gisele Franco Pereira, Landin | BRA | 0 | 1723 | |
| 100 | 100 | Vinicius Castilho, Freitas | BRA | 0 | 1704 | |
| 101 | 101 | Caroline Cardoso Pinheiro Viei, Neves | BRA | 0 | 0 | |
| 102 | 102 | Dhara Munique Domingues, Barreto | BRA | 0 | 0 | |
| 103 | 103 | Isabella Cardoso P. Nattrodt, Morais | BRA | 0 | 0 | |
| 104 | 104 | Jonathan Monteiro, Ramos | BRA | 0 | 0 | |
| 105 | 105 | Matheus Vasconcelos, Gomes | BRA | 0 | 0 | |
| 106 | 106 | Santiago Souza, Da Silva | BRA | 0 | 0 |

