| Jan 21, 2026 | Tomiello | 0–1 | Larino Nieto | BCS Floripa - STD | Pirc Defense | |
| Jan 21, 2026 | Rodriguez Vila | 1–0 | Tomiello | Round 9: Rodriguez Vila, Andres - Tomiello, Mateus Costamilan | Rapport-Jobava System | |
| Jan 21, 2026 | Tomiello | ½–½ | Melian | Round 6: Tomiello, Mateus Costamilan - Melian, Juan Sebastian | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Jan 21, 2026 | Ticona Rocabado | 1–0 | Tomiello | Round 3: Ticona Rocabado, Licael Roderick - Tomiello, Mateus Costamilan | King's Indian Attack: Wahls Defense | |
| Jan 19, 2026 | Quintiliano | 1–0 | Tomiello | BCS Floripa - STD | Queen's Gambit Declined: Three Knights Variation | |
| Dec 20, 2025 | Tomiello | 0–1 | Molina | Round 10: Tomiello, Mateus Costamilan - Molina, Roberto Junio Brito | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Dec 18, 2025 | Tomiello | 0–1 | Filgueiras | Round 7: Tomiello, Mateus Costamilan - Filgueiras, Nathan Felipe | Nimzo-Indian Defense: Classical Variation, Noa Variation | |
| May 24, 2025 | Quesada Perez | * | Tomiello | Round 2: Quesada Perez, Luis Ernesto - Tomiello, Mateus Costamilan | ? | |
| Mar 23, 2025 | Tomiello | 1–0 | Da Silva | Aberto do Brasil XIV Memorial Bobby Fischer - João Pessoa (PB) | English Opening: Four Knights System, Nimzowitsch Variation | |
| Mar 23, 2025 | Tomiello | ½–½ | Lima | 14º Aberto do Brasil Memorial Bobby Fischer 2025 | English Opening: King's English Variation | |
| Mar 22, 2025 | Tomiello | 1–0 | Andrade | Aberto do Brasil XIV Memorial Bobby Fischer - João Pessoa (PB) | English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation | |
| Mar 22, 2025 | Lima | ½–½ | Tomiello | 14º Aberto do Brasil Memorial Bobby Fischer 2025 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Mar 21, 2025 | Tomiello | 1–0 | Santos | Aberto do Brasil XIV Memorial Bobby Fischer - João Pessoa (PB) | Slav Defense: Czech Variation, Wiesbaden Variation, Sharp Line | |
| Mar 21, 2025 | Barbosa | 0–1 | Tomiello | Aberto do Brasil XIV Memorial Bobby Fischer - João Pessoa (PB) | Sicilian Defense: Lasker-Pelikan Variation, Schlechter Variation | |
| Jan 26, 2025 | Belmonte | 0–1 | Tomiello | Round 10: Belmonte, Diego Mariano - Tomiello, Mateus Costamilan | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Jan 25, 2025 | Tomiello | ½–½ | Matsuura | Round 9: Tomiello, Mateus Costamilan - Matsuura, Everaldo | Ruy Lopez: Closed, Flohr System | |
| Jan 24, 2025 | Dos Santos | 0–1 | Tomiello | Round 8: Dos Santos, Welligton Carlos - Tomiello, Mateus Costamilan | English Opening: King's English Variation, Kramnik-Shirov Counterattack | |
| Jan 22, 2025 | Do Valle Cardoso | 1–0 | Tomiello | Round 6: Do Valle Cardoso, Lucas - Tomiello, Mateus Costamilan | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Jan 22, 2025 | Cordero | 0–1 | Tomiello | Round 11: Cordero, Daniela - Tomiello, Mateus Costamilan | Queen's Pawn Game: Symmetrical Variation | |
| Jan 22, 2025 | Tomiello | ½–½ | Nogueira | Round 10: Tomiello, Mateus Costamilan - Nogueira, Ivan Kuhlmann | Ware Defense | |
| Jan 22, 2025 | Rodi | 0–1 | Tomiello | Round 9: Rodi, Luis Ernesto - Tomiello, Mateus Costamilan | Sicilian Defense: Lasker-Pelikan Variation | |
| Jan 22, 2025 | Tomiello | 0–1 | Melian | Round 8: Tomiello, Mateus Costamilan - Melian, Juan Sebastian | English Opening: King's English Variation, Two Knights Variation, Smyslov System | |
| Jan 22, 2025 | Lima | 0–1 | Tomiello | Round 7: Lima, Darcy - Tomiello, Mateus Costamilan | Hungarian Opening: Indian Defense | |
| Jan 22, 2025 | Tomiello | 1–0 | Almeida Junior | Round 6: Tomiello, Mateus Costamilan - Almeida Junior, Alvaro Alves de | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Jan 22, 2025 | Shoker | 1–0 | Tomiello | Round 5: Shoker, Samy - Tomiello, Mateus Costamilan | King's Indian Attack: Wahls Defense | |
| Jan 22, 2025 | Tomiello | 0–1 | Ticona Rocabado | Round 4: Tomiello, Mateus Costamilan - Ticona Rocabado, Licael Roderick | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Jan 22, 2025 | Souza | ½–½ | Tomiello | Round 3: Souza, Adwilhans Luciano - Tomiello, Mateus Costamilan | Sicilian Defense: Lasker-Pelikan Variation | |
| Jan 20, 2025 | Tomiello | 0–1 | Bachmann | Round 3: Tomiello, Mateus Costamilan - Bachmann, Axel | Sicilian Defense: Taimanov Variation, Szén Variation | |
| Dec 19, 2024 | Tomiello | 0–1 | Matsuura | Round 9: Tomiello, Mateus Costamilan - Matsuura, Everaldo | Ruy Lopez: Closed | |
| Dec 13, 2024 | Tomiello | 1–0 | Ferreira Filho | 90º Campeonato Brasileiro de Xadrez | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Dec 13, 2024 | Tomiello | 1–0 | Torres | 90º Campeonato Brasileiro de Xadrez | Ruy Lopez: Open, Howell Attack | |
| Dec 13, 2024 | Oliveira | 1–0 | Tomiello | 90º Campeonato Brasileiro de Xadrez | Slav Defense: Modern Line | |
| Dec 13, 2024 | Do Nascimento | 0–1 | Tomiello | 90º Campeonato Brasileiro de Xadrez | Slav Defense: Modern Line | |
| Dec 13, 2024 | Muniz | 1–0 | Tomiello | 90º Campeonato Brasileiro de Xadrez | Semi-Slav Defense | |
