49 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Tomiello, Mateus Costamilan | Melian, Juan Sebastian | 1/2-1/2 | B48 | Round 6: Tomiello, Mateus Costamilan - Melian, Juan Sebastian | 2026-01-21 |
| Tomiello, Mateus Costamilan | Larino Nieto, David | 0-1 | B07 | BCS Floripa - STD | 2026-01-21 |
| Tomiello, Mateus Costamilan | Molina, Roberto Junio Brito | 0-1 | B12 | Round 10: Tomiello, Mateus Costamilan - Molina, Roberto Junio Brito | 2025-12-20 |
| Tomiello, Mateus Costamilan | Filgueiras, Nathan Felipe | 0-1 | E36 | Round 7: Tomiello, Mateus Costamilan - Filgueiras, Nathan Felipe | 2025-12-18 |
| Tomiello, Mateus Costamilan | Da Silva, Arthur Moura Viera | 1-0 | A28 | Aberto do Brasil XIV Memorial Bobby Fischer - João Pessoa (PB) | 2025-03-23 |
| Tomiello, Mateus Costamilan | Lima, Stefan Moisei VIeira | 1/2-1/2 | A20 | 14º Aberto do Brasil Memorial Bobby Fischer 2025 | 2025-03-23 |
| Tomiello, Mateus Costamilan | Andrade, Roberto Luiz Costa | 1-0 | A16 | Aberto do Brasil XIV Memorial Bobby Fischer - João Pessoa (PB) | 2025-03-22 |
| Tomiello, Mateus Costamilan | Santos, Alan Gomes Florencio | 1-0 | D17 | Aberto do Brasil XIV Memorial Bobby Fischer - João Pessoa (PB) | 2025-03-21 |
| Tomiello, Mateus Costamilan | Matsuura, Everaldo | 1/2-1/2 | C92 | Round 9: Tomiello, Mateus Costamilan - Matsuura, Everaldo | 2025-01-25 |
| Tomiello, Mateus Costamilan | Ticona Rocabado, Licael Roderick | 0-1 | C11 | Round 4: Tomiello, Mateus Costamilan - Ticona Rocabado, Licael Roderick | 2025-01-22 |
| Tomiello, Mateus Costamilan | Almeida Junior, Alvaro Alves de | 1-0 | B92 | Round 6: Tomiello, Mateus Costamilan - Almeida Junior, Alvaro Alves de | 2025-01-22 |
| Tomiello, Mateus Costamilan | Melian, Juan Sebastian | 0-1 | A22 | Round 8: Tomiello, Mateus Costamilan - Melian, Juan Sebastian | 2025-01-22 |
| Tomiello, Mateus Costamilan | Nogueira, Ivan Kuhlmann | 1/2-1/2 | B00 | Round 10: Tomiello, Mateus Costamilan - Nogueira, Ivan Kuhlmann | 2025-01-22 |
| Tomiello, Mateus Costamilan | Bachmann, Axel | 0-1 | B44 | Round 3: Tomiello, Mateus Costamilan - Bachmann, Axel | 2025-01-20 |
| Tomiello, Mateus Costamilan | Matsuura, Everaldo | 0-1 | C88 | Round 9: Tomiello, Mateus Costamilan - Matsuura, Everaldo | 2024-12-19 |
| Tomiello, Mateus Costamilan | Ferreira Filho, Joao Bosco Filgue | 1-0 | B92 | 90º Campeonato Brasileiro de Xadrez | 2024-12-13 |
| Tomiello, Mateus Costamilan | Torres, Jose Belo | 1-0 | C81 | 90º Campeonato Brasileiro de Xadrez | 2024-12-13 |
| Mateus Costamilan Tomiello | Jose Fernando Cuenca Jimenez | 0-1 | A22 | Round 3: Mateus Costamilan Tomiello - Jose Fernando Cuenca Jimenez | 2024-01-22 |
| Mateus Costamilan Tomiello | Diego Saul Rodri Flores Quillas | 0-1 | A29 | Round 4: Mateus Costamilan Tomiello - Diego Saul Rodri Flores Quillas | 2023-11-08 |
| Mateus Costamilan Tomiello | Kaua Marques Silva | 1-0 | A36 | Round 2: Mateus Costamilan Tomiello - Kaua Marques Silva | 2023-11-06 |
| Mateus Costamilan Tomiello | Marco Delgado Romero | 1/2-1/2 | A29 | Round 8: Mateus Costamilan Tomiello - Marco Delgado Romero | 2023-09-21 |
| Mateus Costamilan Tomiello | Matias Perez Gormaz | 1/2-1/2 | A29 | Round 6: Mateus Costamilan Tomiello - Matias Perez Gormaz | 2023-09-19 |
| Mateus Costamilan Tomiello | Cristhian Cruz | 1/2-1/2 | A13 | Round 2: Mateus Costamilan Tomiello - Cristhian Cruz | 2023-09-15 |
| Mateus Costamilan Tomiello | Antu Amigo Quintana | 1-0 | C78 | Round 9: Mateus Costamilan Tomiello - Antu Amigo Quintana | 2023-07-15 |
| Mateus Costamilan Tomiello | Pablo Castro Salgado | 1-0 | B44 | Round 6: Mateus Costamilan Tomiello - Pablo Castro Salgado | 2023-07-13 |
| Mateus Costamilan Tomiello | Lucas Costamilan Tomiello | 1/2-1/2 | C67 | Round 5: Mateus Costamilan Tomiello - Lucas Costamilan Tomiello | 2023-07-12 |
| Mateus Costamilan Tomiello | Diego Saul Rodri Flores Quillas | 0-1 | E46 | Round 6: Mateus Costamilan Tomiello - Diego Saul Rodri Flores Quillas | 2023-01-26 |