| Jul 14, 2024 | Salamanca Paraguayo | * | Costa | Round 9: Salamanca Paraguayo, Mateo - Costa, Ricardo Santos | ? | |
| Jul 13, 2024 | Costa | * | Baratieri | Round 8: Costa, Ricardo Santos - Baratieri, Maria Vitoria | ? | |
| Jul 13, 2024 | Mariani | * | Costa | Round 7: Mariani, Kim Paul - Costa, Ricardo Santos | ? | |
| Jul 12, 2024 | Costa | * | Schena | Round 6: Costa, Ricardo Santos - Schena, Arthur | ? | |
| Jul 12, 2024 | Lelinski | * | Costa | Round 5: Lelinski, Arthur - Costa, Ricardo Santos | ? | |
| Jul 11, 2024 | Costa | * | Abilhoa | Round 4: Costa, Ricardo Santos - Abilhoa, Felipe Auer | ? | |
| Jul 10, 2024 | Orsini | * | Costa | Round 3: Orsini, Sarah de Oliveira - Costa, Ricardo Santos | ? | |
| Jul 10, 2024 | Costa | * | Cunha | Round 2: Costa, Ricardo Santos - Cunha, Paola De Oliveira | ? | |
| Jul 9, 2024 | Piccoli | * | Costa | Round 1: Piccoli, Lucas Fonseca - Costa, Ricardo Santos | ? | |
| Nov 2, 2021 | Costa | 0–1 | Custodio | 87o Campeonato Brasileiro Absoluto Final Aberta | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line | |
| Nov 2, 2021 | Pontes | 1–0 | Costa | 87o Campeonato Brasileiro Absoluto Final Aberta | Queen's Gambit Declined | |
| Nov 1, 2021 | Rosa | 0–1 | Costa | 87o Campeonato Brasileiro Absoluto Final Aberta | Sicilian Defense: Classical Variation, Sozin Attack | |
| Oct 31, 2021 | Costa | ½–½ | Paludo | 87o Campeonato Brasileiro Absoluto Final Aberta | English Opening: Symmetrical Variation, Duchamp Variation | |
| Oct 31, 2021 | Marquezini | 0–1 | Costa | 87o Campeonato Brasileiro Absoluto Final Aberta | Sicilian Defense: Classical Variation, Sozin Attack | |
| Oct 30, 2021 | Costa | 0–1 | Serafim | 87o Campeonato Brasileiro Absoluto Final Aberta | Queen's Pawn Game: Colle System | |
| Oct 29, 2021 | Costa | 1–0 | Pasqualotto | 87o Campeonato Brasileiro Absoluto Final Aberta | Slav Defense: Quiet Variation, Pin Defense | |
| Oct 29, 2021 | Nunes Jr | 1–0 | Costa | 87o Campeonato Brasileiro Absoluto Final Aberta | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Oct 28, 2021 | Di Berardino | 1–0 | Costa | 87o Campeonato Brasileiro Absoluto Final Aberta | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
