| Zanghelini, Pedro Miguel1822 | 0-1 | De Moura Silva, Guilherme1986 | Brazil Chess - Floripa | 2026 |
| De Moura Silva, Guilherme1986 | 0-1 | Aranha Filho, A2199 | Brazil Chess - Floripa | 2026 |
| Bouwman, M2198 | ½-½ | De Moura Silva, Guilherme1986 | Brazil Chess - Floripa | 2026 |
| De Moura Silva, Guilherme1986 | ½-½ | Mayta Aiza, Maveric2201 | Brazil Chess - Floripa | 2026 |
| Santos, Marcos Correia1728 | 0-1 | De Moura Silva, Guilherme1986 | Brazil Chess - Floripa | 2026 |
| De Moura Silva, Guilherme1986 | ½-½ | Nunes, Rafael Klanfer1756 | Brazil Chess - Floripa | 2026 |
| De Moura Silva, Guilherme1986 | 1-0 | Pereira, Cristiano Alves1749 | Brazil Chess - Floripa | 2026 |
| Veiga da Silva, Paulo Roberto Costa1837 | ½-½ | De Moura Silva, Guilherme1986 | Brazil Chess - Floripa | 2026 |
| Di Berardino, D2447 | 1-0 | De Moura Silva, Guilherme1986 | Brazil Chess - Floripa | 2026 |
| De Moura Silva, Guilherme1986 | 1-0 | Bockor, Luana Ieger1575 | Brazil Chess - Floripa | 2026 |
| De Moura Silva, Guilherme1916 | ½-½ | Souza, Iago Henrique da Silva2036 | IV Niteroi Chess Open | 2024 |
| Moura, E2056 | ½-½ | De Moura Silva, Guilherme1916 | IV Niteroi Chess Open | 2024 |
| De Moura Silva, Guilherme1916 | 1-0 | Videira, Matheus Martins | IV Niteroi Chess Open | 2024 |
| Lage, Pedro Ferreira2132 | 1-0 | De Moura Silva, Guilherme1916 | IV Niteroi Chess Open | 2024 |