| Jun 1, 2026 | Carrizo | 0–1 | De Siqueira | Round 9: Carrizo, Luciano Ariel - De Siqueira, Luigy Lira | Queen's Pawn Game: Colle System | |
| Jun 1, 2026 | De Siqueira | 0–1 | Ribeiro | Round 8: De Siqueira, Luigy Lira - Ribeiro, Matheus Mendes Domingues | French Defense: Two Knights Variation | |
| Jun 1, 2026 | Petti | 1–0 | De Siqueira | Round 7: Petti, Luca Giovanni - De Siqueira, Luigy Lira | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jun 1, 2026 | De Siqueira | ½–½ | Mizzau | Round 6: De Siqueira, Luigy Lira - Mizzau, Pablo | Vienna Game: Mieses Variation | |
| Jun 1, 2026 | De Siqueira | 0–1 | Arias Gaviria | Round 4: De Siqueira, Luigy Lira - Arias Gaviria, Mario Alexis | Sicilian Defense: O'Kelly Variation, Maróczy Bind, Geller Line | |
| Jun 1, 2026 | Ibarra | 0–1 | De Siqueira | Round 5: Ibarra, Juan Martin - De Siqueira, Luigy Lira | Semi-Slav Defense: Main Line | |
| Jun 1, 2026 | Sanhueza | 0–1 | De Siqueira | Round 3: Sanhueza, Cristian - De Siqueira, Luigy Lira | Italian Game: Two Knights Defense | |
| Jun 1, 2026 | De Siqueira | 1–0 | Acosta | Round 2: De Siqueira, Luigy Lira - Acosta, Pablo Ismael | Sicilian Defense: Czerniak Attack | |
| Jun 1, 2026 | Ticona Rocabado | 1–0 | De Siqueira | Round 1: Ticona Rocabado, Licael Roderick - De Siqueira, Luigy Lira | Benoni Defense: Classical Variation | |
| Apr 21, 2026 | De Siqueira | * | Guzman | V Rio Chess Open 2026 - STD | ? | |
| Jan 31, 2026 | Yucra Valdes | 0–1 | De Siqueira | III Sampa Chess Open - RPD | Semi-Slav Defense: Meran Variation, Reynolds' Variation | |
| Jan 31, 2026 | Jenidarchiche | 0–1 | De Siqueira | III Sampa Chess Open - RPD | Ruy Lopez: Schliemann Defense | |
| Jan 31, 2026 | De Siqueira | 0–1 | Duarte Napoles | III Sampa Chess Open - RPD | Four Knights Game: Scotch Variation Accepted | |
| Jan 31, 2026 | Pironti | 1–0 | De Siqueira | III Sampa Chess Open - RPD | King's Indian Attack: Wahls Defense | |
| Jan 30, 2026 | De Siqueira | 1–0 | Guimaraes | III Sampa Chess Open - RPD | Four Knights Game | |
| Jan 30, 2026 | De Siqueira | 1–0 | Pinto | III Sampa Chess Open - RPD | Sicilian Defense: French Variation | |
| Jan 30, 2026 | Bonilla Viamonte | 0–1 | De Siqueira | III Sampa Chess Open - RPD | Italian Game: Giuoco Pianissimo, Normal | |
| Jan 30, 2026 | De Siqueira | ½–½ | Serpa | III Sampa Chess Open - STD | French Defense: Tarrasch Variation, Modern System | |
| Jan 29, 2026 | Labussiere | ½–½ | De Siqueira | III Sampa Chess Open - STD | Bishop's Opening: Berlin Defense | |
| Jan 29, 2026 | De Siqueira | ½–½ | Barbosa | III Sampa Chess Open - STD | Four Knights Game: Scotch Variation Accepted | |
| Jan 27, 2026 | Dias | ½–½ | De Siqueira | III Sampa Chess Open - STD | Italian Game: Giuoco Pianissimo, Normal | |
| Jan 11, 2026 | De Siqueira | 0–1 | Tomazette | Brasilia Chess Open 2026 - Torneio STD | Sicilian Defense: Sozin Attack, Flank Variation | |
| Jan 10, 2026 | De Siqueira | ½–½ | Soares | Brasilia Chess Open 2026 - Torneio STD | Sicilian Defense: Najdorf Variation, Lipnitsky Attack | |
| Jan 9, 2026 | De Siqueira | ½–½ | Labussiere | Brasilia Chess Open 2026 - Torneio STD | Sicilian Defense: Hyperaccelerated Dragon | |
| Jan 9, 2026 | Lima | 1–0 | De Siqueira | Brasilia Chess Open 2026 - Torneio STD | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| Jan 8, 2026 | De Siqueira | 1–0 | Oliveira | Brasilia Chess Open 2026 - Torneio STD | Sicilian Defense: French Variation | |
| Jan 8, 2026 | Garcia | 0–1 | De Siqueira | Brasilia Chess Open 2026 - Torneio STD | Indian Defense: Anti-Nimzo-Indian | |
| Jan 7, 2026 | Da Silva | 0–1 | De Siqueira | Brasilia Chess Open 2026 - Torneio STD | Bishop's Opening: Boden-Kieseritzky Gambit | |
| Oct 17, 2025 | Lira | * | De Siqueira | Round 8: Lira, Suan Bruno Fernandes - De Siqueira, Luigy Lira | Queen's Gambit Declined | |
| Oct 14, 2025 | Santiago | * | De Siqueira | Round 6: Santiago, Yago De Moura - De Siqueira, Luigy Lira | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Oct 12, 2025 | De Siqueira | 0–1 | Quintiliano | Round 3: De Siqueira, Luigy Lira - Quintiliano, Renato R. | Sicilian Defense: Keres Variation | |
| Jul 4, 2025 | De Siqueira | 0–1 | Matsuura | Round 7: De Siqueira, Luigy Lira - Matsuura, Everaldo | Sicilian Defense: Old Sicilian | |
| Jul 3, 2025 | Santiago | 1–0 | De Siqueira | Round 6: Santiago, Yago De Moura - De Siqueira, Luigy Lira | Queen's Gambit Accepted: Showalter Variation | |
| Jul 2, 2025 | Movsziszian | 0–1 | De Siqueira | Round 5: Movsziszian, Karen - De Siqueira, Luigy Lira | Hungarian Opening | |
| Jul 1, 2025 | De Siqueira | ½–½ | Di Berardino | Round 4: De Siqueira, Luigy Lira - Di Berardino, Diego Rafael | French Defense: Two Knights Variation | |
| May 10, 2025 | Veiga da Silva | 0–1 | De Siqueira | IV Rio Chess Open 2025 - BLZ | Rapport-Jobava System | |
| May 10, 2025 | De Siqueira | 1–0 | Reimberg | IV Rio Chess Open 2025 - BLZ | Sicilian Defense: French Variation | |
| Apr 24, 2025 | De Siqueira | ½–½ | Lage | IV Rio Chess Open 2025 - BLZ | Four Knights Game: Italian Variation | |
| Apr 24, 2025 | De Siqueira | 1–0 | De Almeida | IV Rio Chess Open 2025 - BLZ | Sicilian Defense: Old Sicilian | |
| Apr 24, 2025 | De Siqueira | 1–0 | Brito | IV Rio Chess Open 2025 - BLZ | French Defense: Exchange Variation | |
| Apr 24, 2025 | De Siqueira | 0–1 | Azevedo | IV Rio Chess Open 2025 - BLZ | Scandinavian Defense: Valencian Variation | |
| Apr 24, 2025 | De Miranda | 0–1 | De Siqueira | IV Rio Chess Open 2025 - BLZ | Bishop's Opening: Berlin Defense | |
| Apr 24, 2025 | Luz | 0–1 | De Siqueira | IV Rio Chess Open 2025 - BLZ | Italian Game: Two Knights Defense | |
| Apr 24, 2025 | Barr | 0–1 | De Siqueira | IV Rio Chess Open 2025 - BLZ | Queen's Pawn Game: London System | |
| Feb 1, 2025 | De Siqueira | 0–1 | Seccafim | II Sampa Chess Open - STD Open | French Defense: Classical Variation, Burn Variation, Morozevich Line | |
| Feb 1, 2025 | De Siqueira | 1–0 | Marra | II Sampa Chess Open - STD Open | Scotch Game: Tartakower Variation | |
| Feb 1, 2025 | De Siqueira | ½–½ | Silva | II Sampa Chess Open - STD Open | Ruy Lopez: Open Berlin Defense, l'Hermet Variation | |
| Feb 1, 2025 | De Siqueira | 1–0 | Tsuboi | II Sampa Chess Open - STD Open | Sicilian Defense: French Variation | |
| Feb 1, 2025 | De Siqueira | ½–½ | Guimaraes | II Sampa Chess Open - STD Open | Sicilian Defense | |
| Feb 1, 2025 | Da Costa | 0–1 | De Siqueira | II Sampa Chess Open - STD Open | Queen's Gambit Accepted | |
| Feb 1, 2025 | Cruz | 0–1 | De Siqueira | II Sampa Chess Open - STD Open | Four Knights Game: Spanish Variation, Rubinstein Variation | |
| Feb 1, 2025 | Contreras Huaman | ½–½ | De Siqueira | II Sampa Chess Open - STD Open | Ruy Lopez: Morphy Defense, Cozio Defense | |
| Feb 1, 2025 | De Albuquerque | 0–1 | De Siqueira | II Sampa Chess Open - STD Open | Italian Game: Giuoco Pianissimo, Normal | |
| Feb 1, 2025 | Awoki | ½–½ | De Siqueira | II Sampa Chess Open - STD Open | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Jan 26, 2025 | Torales G. | 0–1 | De Siqueira | Round 10: Torales G., Ivan Alejandro B. - De Siqueira, Luigy Lira | Scotch Game: Classical Variation | |
| Jan 25, 2025 | De Siqueira | ½–½ | Almeida Junior | Round 9: De Siqueira, Luigy Lira - Almeida Junior, Alvaro Alves de | Sicilian Defense: Nimzowitsch Variation, Closed Variation | |
| Jan 24, 2025 | Lima | ½–½ | De Siqueira | Round 8: Lima, Stefan Moisei VIeira - De Siqueira, Luigy Lira | King's Indian Attack | |
| Jan 23, 2025 | De Siqueira | 1–0 | Odasso | Round 7: De Siqueira, Luigy Lira - Odasso, Gianluca | French Defense: Tarrasch Variation, Guimard Defense, Main Line | |
| Jan 22, 2025 | Salinas Herrera | 1–0 | De Siqueira | Round 11: Salinas Herrera, Pablo - De Siqueira, Luigy Lira | Queen's Pawn Game: London System | |
| Jan 22, 2025 | De Siqueira | ½–½ | Bambino Filho | Round 10: De Siqueira, Luigy Lira - Bambino Filho, Antonio Carlos | Pirc Defense: Sveshnikov System | |
| Jan 22, 2025 | Rodrigues Mota | 0–1 | De Siqueira | Round 9: Rodrigues Mota, Romulo Cardoso S - De Siqueira, Luigy Lira | English Opening: Agincourt Defense | |
| Jan 22, 2025 | De Siqueira | 1–0 | Souza | Round 8: De Siqueira, Luigy Lira - Souza, Adwilhans Luciano | Scotch Game: Modern Defense | |
| Jan 22, 2025 | Ticona Rocabado | 0–1 | De Siqueira | Round 7: Ticona Rocabado, Licael Roderick - De Siqueira, Luigy Lira | Semi-Slav Defense: Quiet Variation | |
| Jan 22, 2025 | De Siqueira | ½–½ | Lima | Round 6: De Siqueira, Luigy Lira - Lima, Darcy | Sicilian Defense: Dragon Variation, Yugoslav Attack | |
| Jan 22, 2025 | De Siqueira | 1–0 | Jorge | Round 5: De Siqueira, Luigy Lira - Jorge, Denrick Cabral Jose | Sicilian Defense: Moscow Variation, Main Line | |
| Jan 22, 2025 | Santiago | 1–0 | De Siqueira | Round 4: Santiago, Yago De Moura - De Siqueira, Luigy Lira | Semi-Slav Defense | |
| Jan 22, 2025 | Shoker | 0–1 | De Siqueira | Round 3: Shoker, Samy - De Siqueira, Luigy Lira | King's Indian Attack | |
| Jan 22, 2025 | De Siqueira | 1–0 | Lopes | Round 2: De Siqueira, Luigy Lira - Lopes, Eduardo Moraes | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Jan 20, 2025 | Hernandez Guerrero | 1–0 | De Siqueira | Round 4: Hernandez Guerrero, Gilberto - De Siqueira, Luigy Lira | Ruy Lopez: Schliemann Defense | |
| Dec 21, 2024 | De Siqueira | ½–½ | Pereira | Round 11: De Siqueira, Luigy Lira - Pereira, Silvio Cunha | Italian Game: Evans Gambit, Tartakower Attack | |
| Dec 19, 2024 | De Siqueira | 1–0 | Lima | Round 9: De Siqueira, Luigy Lira - Lima, Darcy | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Dec 17, 2024 | Molina | 1–0 | De Siqueira | Round 7: Molina, Roberto Junio Brito - De Siqueira, Luigy Lira | Queen's Gambit Declined: Queen's Knight Variation | |
| Dec 15, 2024 | Tomiello | ½–½ | De Siqueira | Round 5: Tomiello, Lucas Costamilan - De Siqueira, Luigy Lira | Ruy Lopez: Schliemann Defense, Exchange Variation | |
| Dec 15, 2024 | De Siqueira | ½–½ | Di Berardino | Round 4: De Siqueira, Luigy Lira - Di Berardino, Diego Rafael | Sicilian Defense: Kupreichik Variation | |
| Dec 13, 2024 | De Siqueira | 1–0 | Batista | 90º Campeonato Brasileiro de Xadrez | ? | |
| Dec 13, 2024 | De Siqueira | 1–0 | Souza | 90º Campeonato Brasileiro de Xadrez | French Defense: Tarrasch Variation | |
| Dec 13, 2024 | De Siqueira | 1–0 | De Lima | 90º Campeonato Brasileiro de Xadrez | Czech Defense | |
| Dec 13, 2024 | Oliveira | 0–1 | De Siqueira | 90º Campeonato Brasileiro de Xadrez | Queen's Gambit Accepted: Old Variation | |
| Dec 11, 2024 | Diamant | 1–0 | De Siqueira | Round 10: Diamant, Andre - De Siqueira, Luigy Lira | English Opening: Agincourt Defense, Catalan Defense, Semi-Slav Defense | |
| Oct 15, 2024 | De Siqueira | 0–1 | Carvalho | Round 9: De Siqueira, Luigy Lira - Carvalho, Felipe Lobo C. | French Defense: Classical Variation, Steinitz Variation | |
| Oct 15, 2024 | Rocha | ½–½ | De Siqueira | Round 8: Rocha, Arthur Ferreira - De Siqueira, Luigy Lira | French Defense: Classical Variation, Steinitz Variation | |
| Oct 15, 2024 | Pinero Rodriguez | 1–0 | De Siqueira | Round 4: Pinero Rodriguez, Carlos Jose - De Siqueira, Luigy Lira | ? | |
| Oct 15, 2024 | De Siqueira | 0–1 | Cunha | Round 3: De Siqueira, Luigy Lira - Cunha, Lucas Aguiar | Sicilian Defense: Open | |
| Oct 15, 2024 | Acosta | ½–½ | De Siqueira | Manaus Chess Open 2024 | Italian Game: Bird's Attack | |
| Oct 14, 2024 | De Siqueira | 1–0 | Takehara | Manaus Chess Open 2024 | Caro-Kann Defense: Apocalypse Attack | |
| Oct 14, 2024 | Delgado Ramirez | 1–0 | De Siqueira | Manaus Chess Open 2024 | Italian Game: Giuoco Pianissimo, Normal | |
| Oct 13, 2024 | De Siqueira | 1–0 | Mesquita | Manaus Chess Open 2024 | Sicilian Defense: Najdorf Variation, Lipnitsky Attack | |
| Oct 12, 2024 | De Siqueira | 0–1 | Da Silva | Manaus Chess Open 2024 | Nimzowitsch Defense | |
| Oct 12, 2024 | Grosselli | 0–1 | De Siqueira | Manaus Chess Open 2024 | Nimzo-Larsen Attack: Classical Variation | |
| Oct 12, 2024 | Do Carmo | 0–1 | De Siqueira | Manaus Chess Open 2024 | Tarrasch Defense: Symmetrical Variation | |
| Oct 11, 2024 | Pereira Fo | 0–1 | De Siqueira | Manaus Chess Open 2024 | Nimzowitsch Defense: Kennedy Variation, Linksspringer Variation | |
| Jun 29, 2024 | Amura | 1–0 | De Siqueira | Round 8: Amura, Claudia - De Siqueira, Luigy Lira | Queen's Gambit Declined: Exchange Variation, Reshevsky Variation | |
| Apr 28, 2024 | De Siqueira | 0–1 | Fier | Round 9: De Siqueira, Luigy Lira - Fier, Alexandr | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Apr 27, 2024 | Jorge | 0–1 | De Siqueira | Round 8: Jorge, Denrick Cabral Jose - De Siqueira, Luigy Lira | Scotch Game: Scotch Gambit, Advance Variation | |
| Apr 27, 2024 | Guimaraes | 0–1 | De Siqueira | Round 9: Guimaraes, Lucas Dos S Peixoto - De Siqueira, Luigy Lira | Italian Game: Classical Variation, Greco Gambit | |
| Apr 27, 2024 | De Siqueira | 0–1 | Oliveira | Round 8: De Siqueira, Luigy Lira - Oliveira, Fernando Ventura | Sicilian Defense: Dragon Variation, Yugoslav Attack, Main Line | |
| Apr 27, 2024 | Mafra | 0–1 | De Siqueira | Round 7: Mafra, Kaiser Luiz - De Siqueira, Luigy Lira | Four Knights Game: Glek System | |
| Apr 27, 2024 | De Siqueira | 0–1 | Labussiere | Round 6: De Siqueira, Luigy Lira - Labussiere, Yago | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Apr 27, 2024 | Hoffman | 0–1 | De Siqueira | Round 5: Hoffman, Alejandro - De Siqueira, Luigy Lira | English Opening: Agincourt Defense, Catalan Defense Accepted | |
| Apr 27, 2024 | Urquiza | ½–½ | De Siqueira | Round 4: Urquiza, Marcello de Albuquerque - De Siqueira, Luigy Lira | Scotch Game: Potter Variation | |