| Feb 7, 2026 | Medel Calbun | 1–0 | Jara Acevedo | Ronda 7: Medel Calbun, Jorge Luis - Jara Acevedo, Mateo Alonso | Benoni Defense: Old Benoni | |
| Feb 5, 2026 | Jara Acevedo | 0–1 | Vrsalovic Acuna. Stjepan Antonio | Ronda 5: Jara Acevedo, Mateo Alonso - Vrsalovic Acuna. Stjepan Antonio | Sicilian Defense: Modern Variations | |
| Feb 5, 2026 | Pizarro Rozas | ½–½ | Jara Acevedo | Ronda 4: Pizarro Rozas, Aaron - Jara Acevedo, Mateo Alonso | Sicilian Defense: Closed | |
| Feb 4, 2026 | Jara Acevedo | 1–0 | Bussenius Adolfssen | Ronda 3: Jara Acevedo, Mateo Alonso - Bussenius Adolfssen, Sebastian | Scotch Game: Schmidt Variation | |
| Dec 8, 2025 | Jara Acevedo | 0–1 | Navarro Espana | XXI Festival Sudamericano de la Juventud 2025 | French Defense: Advance Variation, Paulsen Attack | |
| Dec 8, 2025 | Covarrubias Ochoa | 0–1 | Jara Acevedo | XXI Festival Sudamericano de la Juventud 2025 | Sicilian Defense: Löwenthal Variation | |
| Feb 9, 2025 | Simon Emiliano Tapia Vasquez | 0–1 | Jara Acevedo | Ronda 9: Simon Emiliano Tapia Vasquez - Jara Acevedo, Mateo Alonso | Sicilian Defense: Modern Variations | |
| Feb 8, 2025 | Jara Acevedo | 1–0 | Morales Valderrama Gaspar Alexander | Ronda 7: Jara Acevedo, Mateo Alonso - Morales Valderrama Gaspar Alexander | Scotch Game: Lolli Variation | |
| Feb 8, 2025 | Almonacid Soto | 0–1 | Jara Acevedo | Ronda 8: Almonacid Soto, Matias Pablo - Jara Acevedo, Mateo Alonso | Indian Defense: Spielmann-Indian | |
| Feb 7, 2025 | Otarola Pina | 0–1 | Jara Acevedo | Ronda 6: Otarola Pina, Juan Alfonso - Jara Acevedo, Mateo Alonso | Sicilian Defense: Snyder Variation | |
| Feb 6, 2025 | Jara Acevedo | 1–0 | Fernandez Luna | Ronda 5: Jara Acevedo, Mateo Alonso - Fernandez Luna, Esteban Linton | Scotch Game: Potter Variation | |
| Feb 6, 2025 | Riquelme Chavarria | 0–1 | Jara Acevedo | Ronda 4: Riquelme Chavarria, Rafael - Jara Acevedo, Mateo Alonso | Sicilian Defense: Staunton-Cochrane Variation | |
| Feb 5, 2025 | Jara Acevedo | 1–0 | Vera Quijon | Ronda 3: Jara Acevedo, Mateo Alonso - Vera Quijon, Pedro Anibal | Scotch Game | |
| Feb 5, 2025 | Rios Arenas | 0–1 | Jara Acevedo | Ronda 2: Rios Arenas, Gaspar Alonso - Jara Acevedo, Mateo Alonso | Sicilian Defense: Closed | |
| May 17, 2024 | Jara Acevedo | 0–1 | Passmore Bowman | Round 1: Jara Acevedo, Mateo Alonso - Passmore Bowman, Tobias | Sicilian Defense: O'Kelly Variation, Aronin System | |
