26 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Costa, Tomas Pereira | Le Pen, Steven | 0-1 | B22 | Leca Chess Open 2026 | 2026-08-03 |
| Costa, Tomas Pereira | Ribeiro, Rodrigo | 1/2-1/2 | B22 | Leca Chess Open 2026 | 2026-08-01 |
| Costa, Tomas Pereira | Padeiro, Jose | 1/2-1/2 | C10 | Famalicao Open | 2026-07-23 |
| Costa, Tomas Pereira | Gorodetzky, David | 0-1 | B15 | Famalicao Open | 2026-07-23 |
| Costa, Tomas Pereira | Fidalgo, Andre Neves | 1-0 | C77 | Famalicao Open | 2026-07-21 |
| Costa, Tomas Pereira | Carvalho, Noe | 1/2-1/2 | C11 | CN Jovens 2025-26 - U16 U14 U12 | 2026-03-31 |
| Costa, Tomas Pereira | Freitas, Daniel Leonardo M | 1-0 | B15 | CN Jovens 2025-26 - U16 U14 U12 | 2026-03-30 |
| Costa, Tomas Pereira | Adam, Rafael | 0-1 | B22 | Leca Chess Open 2025 | 2025-08-03 |
| Costa, Tomas Pereira | Afonso, Joao Pedro | 0-1 | B15 | torneio | 2025-07-23 |
| Costa, Tomas Pereira | Ribeiro, Gustavo | 0-1 | B22 | TICF 2024 | 2024-07-23 |
| Costa, Tomas Pereira | Valente, Sofia | 0-1 | B22 | CNJovens24 | 2024-03-24 |