| Sousa, Vinicius Moraes Avellaneda1860 | 0-1 | El Zwei, Aiman Mohamed2087 | X SESC Caioba Open | 2026 |
| Sousa, Vinicius Moraes Avellaneda1860 | 0-1 | Alonso, Leonardo Espinha2108 | X SESC Caioba Open | 2026 |
| Sousa, Vinicius Moraes Avellaneda1860 | 0-1 | Do Valle Cardoso, Lucas2407 | X SESC Caioba Open | 2026 |
| Sousa, Vinicius Moraes Avellaneda1816 | 1-0 | Piekarski, A1982 | Curitiba Chess Open 2026 | 2026 |
| Almeida Junior, Alvaro Alves de2171 | 1-0 | Sousa, Vinicius Moraes Avellaneda1816 | Curitiba Chess Open 2026 | 2026 |
| Sousa, Vinicius Moraes Avellaneda1816 | 1-0 | De Oliveira, Leonardo Souza A.2028 | Curitiba Chess Open 2026 | 2026 |
| Campelo, L2104 | ½-½ | Sousa, Vinicius Moraes Avellaneda1816 | Curitiba Chess Open 2026 | 2026 |
| Sousa, Vinicius Moraes Avellaneda1816 | 1-0 | Scremin, Song Won Coronado | Curitiba Chess Open 2026 | 2026 |
| Sousa, Vinicius Moraes Avellaneda1804 | 0-1 | Goncalves, Nata1957 | Brazil Chess - Floripa | 2026 |
| Rodriques, E2316 | 1-0 | Sousa, Vinicius Moraes Avellaneda1804 | Brazil Chess - Floripa | 2026 |
| Sousa, Vinicius Moraes Avellaneda1804 | ½-½ | Carvalho, Gu2045 | Brazil Chess - Floripa | 2026 |
| Pimenta, Heitor Castelar Britto1988 | 0-1 | Sousa, Vinicius Moraes Avellaneda1804 | Brazil Chess - Floripa | 2026 |
| Sousa, Vinicius Moraes Avellaneda1804 | 1-0 | Martins, Eduarda Baldisserotto1511 | Brazil Chess - Floripa | 2026 |
| Borthiry, Pablo1601 | 0-1 | Sousa, Vinicius Moraes Avellaneda1804 | Brazil Chess - Floripa | 2026 |
| Sousa, Vinicius Moraes Avellaneda1804 | 0-1 | Cuenca Jimenez, J2486 | Brazil Chess - Floripa | 2026 |