| Dec 19, 2025 | Pacheco Calderon | 1–0 | Tjin Kon Kiem | Round 8: Pacheco Calderon, Jarek - Tjin Kon Kiem, Ethan | Sicilian Defense: Najdorf Variation, English Attack | |
| Dec 18, 2025 | Lara Santos | ½–½ | Pacheco Calderon | Round 7: Lara Santos, Angel Sebastian - Pacheco Calderon, Jarek | Sicilian Defense: Hyperaccelerated Dragon | |
| Dec 18, 2025 | Pacheco Calderon | 1–0 | Little | Round 6: Pacheco Calderon, Jarek - Little, Savion | Pirc Defense: Classical Variation, Quiet System, Czech Defense | |
| Dec 17, 2025 | Jaikaran | 0–1 | Pacheco Calderon | Round 5: Jaikaran, Aaron - Pacheco Calderon, Jarek | Sicilian Defense: Closed, Botvinnik Defense, with Nge2 | |
| Dec 16, 2025 | Pacheco Calderon | 1–0 | Rosas Valdes | Round 4: Pacheco Calderon, Jarek - Rosas Valdes, Javier Alfonso | Sicilian Defense: Najdorf Variation, English Attack | |
| Dec 16, 2025 | Fung | 1–0 | Pacheco Calderon | Round 3: Fung, Thie-Yen - Pacheco Calderon, Jarek | English Opening: Symmetrical Variation, Ultra-Symmetrical Variation | |
| Dec 15, 2025 | Pacheco Calderon | ½–½ | Graham | Round 2: Pacheco Calderon, Jarek - Graham, Dez | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Dec 15, 2025 | Green | 0–1 | Pacheco Calderon | Round 1: Green, Nathaniel - Pacheco Calderon, Jarek | Sicilian Defense: Dragon Variation | |
| Dec 9, 2025 | Pacheco Calderon | 0–1 | Jimenez Leyva | Round 9: Pacheco Calderon, Jarek - Jimenez Leyva, Diego | Sicilian Defense: Kalashnikov Variation | |
| Jul 27, 2025 | Pacheco Calderon | 0–1 | Zilleruelo Irizarry | II Torneo Internacional de Ajedrez Jose Celso Barbosa | Caro-Kann Defense: Exchange Variation | |
| Jul 26, 2025 | Melendez Padilla | 0–1 | Pacheco Calderon | II Torneo Internacional de Ajedrez Jose Celso Barbosa | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Jul 25, 2025 | Pacheco Calderon | ½–½ | Lopez Rivera | II Torneo Internacional de Ajedrez Jose Celso Barbosa | Caro-Kann Defense: Exchange Variation | |
| Jul 25, 2025 | Ayala Sanchez | ½–½ | Pacheco Calderon | II Torneo Internacional de Ajedrez Jose Celso Barbosa | Indian Defense | |
| Jul 23, 2025 | Pacheco Calderon | ½–½ | Done Sanchez | II Torneo Internacional de Ajedrez Jose Celso Barbosa | Pirc Defense: Classical Variation, Quiet System, Parma Defense | |
| Jul 23, 2025 | Burgos Rodriguez | ½–½ | Pacheco Calderon | II Torneo Internacional de Ajedrez Jose Celso Barbosa | Sicilian Defense: Dragon Variation | |
| Jul 21, 2025 | Torres | 1–0 | Pacheco Calderon | II Torneo Internacional de Ajedrez Jose Celso Barbosa | King's Indian Defense: Makogonov Variation | |
| Jul 20, 2025 | Pacheco Calderon | 1–0 | Ortega Rivera | II Torneo Internacional de Ajedrez Jose Celso Barbosa | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Jul 27, 2024 | Ian G Rodriguez Rodriguez | 0–1 | Pacheco Calderon | Round 7: Ian G Rodriguez Rodriguez - Pacheco Calderon, Jarek | Sicilian Defense: Dragon Variation, Levenfish Variation | |
| Jul 26, 2024 | Pacheco Calderon | ½–½ | Vasquez Pagan | Round 6: Pacheco Calderon, Jarek - Vasquez Pagan, Diego | Italian Game: Hungarian Defense | |
| Jul 25, 2024 | Pacheco Calderon | 1–0 | De La Rosa Diaz | Round 5: Pacheco Calderon, Jarek - De La Rosa Diaz, Osvaldo J. | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| Jul 25, 2024 | Ortiz Lespier | 0–1 | Pacheco Calderon | Round 4: Ortiz Lespier, Jaime - Pacheco Calderon, Jarek | French Defense: Advance Variation, Euwe Variation | |
| Jul 24, 2024 | Pacheco Calderon | ½–½ | Done Sanchez | Round 3: Pacheco Calderon, Jarek - Done Sanchez, Andrews J. | Pirc Defense | |
| Jul 23, 2024 | Patel | 0–1 | Pacheco Calderon | Round 2: Patel, Yash - Pacheco Calderon, Jarek | Sicilian Defense: Grand Prix Attack | |
| Jul 23, 2024 | Patel | * | Pacheco Calderon | Round 1: Patel, Yash - Pacheco Calderon, Jarek | ? | |
| Jul 22, 2024 | Pacheco Calderon | ½–½ | Rodriguez Rosario | Round 1: Pacheco Calderon, Jarek - Rodriguez Rosario, Manuel | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
