| Soares, Rafael Tuma2008 | 1-0 | Monteiro, Samuel Ramazzotte1880 | X SESC Caioba Open | 2026 |
| Mafra, K2009 | 1-0 | Monteiro, Samuel Ramazzotte1880 | X SESC Caioba Open | 2026 |
| Monteiro, Samuel Ramazzotte1801 | 0-1 | Yepez Montenegro, Gloria Luz1936 | Brazil Chess - Floripa | 2026 |
| Navarro Guerrero, S2125 | 1-0 | Monteiro, Samuel Ramazzotte1801 | Brazil Chess - Floripa | 2026 |
| Monteiro, Samuel Ramazzotte1801 | 1-0 | Souza, Neurismar Da Rocha1636 | Brazil Chess - Floripa | 2026 |
| Neves, Leonardo C B C De Almeida2161 | 1-0 | Monteiro, Samuel Ramazzotte1801 | Brazil Chess - Floripa | 2026 |
| Do Amaral e Silva, Larissa Blue1597 | 0-1 | Monteiro, Samuel Ramazzotte1801 | Brazil Chess - Floripa | 2026 |
| Monteiro, Samuel Ramazzotte1801 | 0-1 | Bouwman, M2198 | Brazil Chess - Floripa | 2026 |
| Monteiro, Samuel Ramazzotte1801 | 0-1 | Quintiliano Pinto, R2480 | Brazil Chess - Floripa | 2026 |
| Acuna Alarcon, Claudia Micaela1888 | 1-0 | Monteiro, Samuel Ramazzotte1852 | World Youth U16 Olympiad | 2025 |
| Campos Munoz, Valentina1832 | 1-0 | Monteiro, Samuel Ramazzotte1852 | World Youth U16 Olympiad | 2025 |
| Monteiro, Samuel Ramazzotte1852 | 1-0 | El Hage Serrano, Caely1822 | World Youth U16 Olympiad | 2025 |
| Wilson, Dion A1924 | ½-½ | Monteiro, Samuel Ramazzotte1852 | World Youth U16 Olympiad | 2025 |
| Monteiro, Samuel Ramazzotte1852 | 1-0 | Duarte Cramer, Lily Jeanette1904 | World Youth U16 Olympiad | 2025 |
| Toro Suarez, Frank Sebastian1662 | 1-0 | Monteiro, Samuel Ramazzotte1852 | World Youth U16 Olympiad | 2025 |