| Mar 15, 2026 | Valdes Boza | 1–0 | Da Costa | rated blitz game | Caro-Kann Defense: Classical Variation, Spassky Variation | |
| Mar 15, 2026 | Da Costa | 1–0 | Muniz Guevara | rated blitz game | Queen's Gambit Declined: Orthodox Defense, Main Line | |
| Mar 15, 2026 | Palacios | 0–1 | Da Costa | rated blitz game | Caro-Kann Defense | |
| Mar 15, 2026 | Da Costa | 0–1 | Rodriguez Dominguez | rated blitz game | Semi-Slav Defense: Anti-Moscow Gambit | |
| Mar 15, 2026 | Bolanos Garcia | 0–1 | Da Costa | rated blitz game | Caro-Kann Defense: Advance Variation, Short Variation | |
| Mar 15, 2026 | Da Costa | 1–0 | Santillan Vareles | rated blitz game | King's Indian Defense: Averbakh Variation, Nc6 Defense | |
| Mar 15, 2026 | Cardenas | 0–1 | Da Costa | rated blitz game | Slav Defense: Czech Variation, Dutch Variation | |
| Mar 15, 2026 | Da Costa | 0–1 | Pedraza Aldana | rated blitz game | Queen's Gambit Declined: Albin Countergambit, Normal Line | |
| Mar 15, 2026 | Baltodano Zomer | 0–1 | Da Costa | rated blitz game | Queen's Pawn Game: Accelerated London System | |
| Jan 23, 2026 | Monteiro | 0–1 | Da Costa | BCS - Circuito Palas Atena Veloso | Slav Defense: Exchange Variation | |
| Jan 23, 2026 | Da Costa | 0–1 | Jimenez Salas | BCS - Circuito Palas Atena Veloso | Slav Defense | |
| Jan 23, 2026 | Da Costa | 1–0 | Frassetto | BCS - Circuito Palas Atena Veloso | Queen's Indian Defense | |
| Jan 23, 2026 | Contreras Huaman | 1–0 | Da Costa | BCS - Circuito Palas Atena Veloso | Queen's Pawn Game: Accelerated London System | |
| Jan 23, 2026 | Da Costa | 1–0 | Haberbeck Fagundes | BCS - Circuito Palas Atena Veloso | Queen's Gambit Declined: Marshall Defense | |
| Jan 23, 2026 | Martins | 0–1 | Da Costa | BCS - Circuito Palas Atena Veloso | Slav Defense: Exchange Variation | |
| Feb 1, 2025 | Da Costa | 0–1 | De Siqueira | II Sampa Chess Open - STD Open | Queen's Gambit Accepted | |
| Jan 22, 2025 | Da Costa | 1–0 | Riline Orso | Round 10: Da Costa, Mariana Nara Santana - Riline Orso, Alejandro A. | King's Indian Defense: Averbakh Variation, Main Line | |
| Jan 22, 2025 | Nogueira | 1–0 | Da Costa | Round 7: Nogueira, Ivan Kuhlmann - Da Costa, Mariana Nara Santana | Ware Opening | |
| Jan 22, 2025 | Lorenzon | 1–0 | Da Costa | Round 1: Lorenzon, Eduardo Lucas - Da Costa, Mariana Nara Santana | Clemenz Opening | |
| Jan 16, 2025 | Almeida Junior | 1–0 | Da Costa | Round 11: Almeida Junior, Alvaro Alves de - Da Costa, Mariana Nara Santana | Four Knights Game | |
| Oct 30, 2024 | Da Costa | 0–1 | Smietanska | Round 2: Da Costa, Mariana Nara Santana - Smietanska, Wiktoria | Nimzo-Indian Defense: Classical Variation, Noa Variation | |
| May 6, 2024 | Bermeo Apolinario | * | Da Costa | Round 6: Bermeo Apolinario,Jaziel Charlie - Da Costa, Mariana Nara Santana | Bird Opening: Dutch Variation | |
| May 4, 2024 | Morales Perez | ½–½ | Da Costa | Round 4: Morales Perez, Ghisell - Da Costa, Mariana Nara Santana | Rapport-Jobava System | |
