| Sep 14, 2025 | Valenzuela Gomez | 1–0 | Najar Arrieta | XXXI Open Internacional Escacs Actius de Vallfogona de Balaguer | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Sep 14, 2025 | Najar Arrieta | 0–1 | Garcia Jimenez | XXXI Open Internacional Escacs Actius de Vallfogona de Balaguer | Scandinavian Defense: Valencian Variation, Main Line | |
| Sep 14, 2025 | Najar Arrieta | 0–1 | Esplugas Esteve | XXXI Open Internacional Escacs Actius de Vallfogona de Balaguer | French Defense: Winawer Variation, Advance Variation | |
| Apr 16, 2025 | Herman Gamazo | 1–0 | Najar Arrieta | Campionat de Catalunya d'Edats Individual 2025 | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Apr 15, 2025 | Najar Arrieta | ½–½ | Mulet Polo | Campionat de Catalunya d'Edats Individual 2025 | Caro-Kann Defense: Tartakower Variation | |
| Apr 14, 2025 | Najar Arrieta | 1–0 | Perez Llaurado | Campionat de Catalunya d'Edats Individual 2025 | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Apr 14, 2025 | Marsal Calvet | ½–½ | Najar Arrieta | Campionat de Catalunya d'Edats Individual 2025 | Grünfeld Defense: Exchange Variation, Classical Variation | |
| Apr 13, 2025 | Najar Arrieta | 1–0 | Uddin Khanam | Campionat de Catalunya d'Edats Individual 2025 | Sicilian Defense: Taimanov Variation, Szén Variation | |
| Apr 13, 2025 | Pereira | ½–½ | Najar Arrieta | Campionat de Catalunya d'Edats Individual 2025 | Sicilian Defense: Portsmouth Gambit | |
| Apr 12, 2025 | Pastor Castella | 0–1 | Najar Arrieta | Campionat de Catalunya d'Edats Individual 2025 | Sicilian Defense: Classical Variation | |
| Jan 7, 2025 | Machin Arbelo | * | Najar Arrieta | Roquetas 25 | ? | |
| Jan 6, 2025 | Najar Arrieta | * | Nieto Asencio | Roquetas 25 | ? | |
| Jan 6, 2025 | Gaitan Galstyan | * | Najar Arrieta | Roquetas 25 | ? | |
| Jan 5, 2025 | Najar Arrieta | * | Mullor Pena | Roquetas 25 | ? | |
| Jan 4, 2025 | Najar Arrieta | * | Lopez Perez | Roquetas 25 | ? | |
| Jan 4, 2025 | Ainsa Jimenez | * | Najar Arrieta | Roquetas 25 | ? | |
| Jan 3, 2025 | Vela Ignacio | * | Najar Arrieta | Roquetas 25 | ? | |
| Jan 3, 2025 | Olbrycht | * | Najar Arrieta | Roquetas 25 | ? | |
| Jan 2, 2025 | Najar Arrieta | 0–1 | Narayanan S L | Roquetas 25 | Sicilian Defense: Kalashnikov Variation | |
| Jul 22, 2024 | Najar Arrieta | 0–1 | Berdayes Ason | XLVIII Open Internacional Vila de Sitges | Caro-Kann Defense: Tartakower Variation | |
| Jul 13, 2024 | Ayas Fernandez | ½–½ | Najar Arrieta | Round 7: Ayas Fernandez, Antonio - Najar Arrieta, Oriol | English Opening: Symmetrical Variation, Three Knights, Fianchetto Variation | |
| Jul 13, 2024 | Najar Arrieta | 0–1 | Lacasa Diaz | Round 2: Najar Arrieta, Oriol - Lacasa Diaz, Josep Anton | Sicilian Defense: Dragon Variation | |
| Jul 7, 2024 | Najar Arrieta | * | Jagreet Misra | Round 4: Najar Arrieta, Oriol - Jagreet Misra | ? | |
| Jul 6, 2024 | Najar Arrieta | 0–1 | Kaustuv | Round 1: Najar Arrieta, Oriol - Kaustuv, Kundu | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation | |
| Jul 16, 2023 | Najar Arrieta | 0–1 | Nunez De Arenas Navarro | CE SUB 12 Rapido 2023 | Scandinavian Defense: Valencian Variation, Main Line | |
| Jul 16, 2023 | Najar Arrieta | 1–0 | Gaitan Galstyan | CE SUB 12 Rapido 2023 | Sicilian Defense: Dragon Variation, Yugoslav Attack, Panov Variation | |
| Jul 16, 2023 | Najar Arrieta | 1–0 | Alfaro Aldunate | CE SUB 12 Rapido 2023 | Sicilian Defense: Hyperaccelerated Pterodactyl | |
| Jul 16, 2023 | Barreiro Rebolo | ½–½ | Najar Arrieta | CE SUB 12 Rapido 2023 | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Jul 16, 2023 | Burriel Ureta | 1–0 | Najar Arrieta | CE SUB 12 Rapido 2023 | Sicilian Defense: Old Sicilian | |
| Jul 15, 2023 | Najar Arrieta | 0–1 | Krauchi Romero | CE Sub 12 2023 | Sicilian Defense: Kalashnikov Variation | |
| Jul 15, 2023 | Najar Arrieta | 1–0 | Almau Izquierdo | CE SUB 12 Rapido 2023 | Sicilian Defense: Hyperaccelerated Fianchetto | |
| Jul 15, 2023 | Najar Arrieta | 0–1 | Surov | CE SUB 12 Rapido 2023 | French Defense: Alekhine-Chatard Attack, Albin-Chatard Gambit | |
| Jul 15, 2023 | Espinosa Pineda | 0–1 | Najar Arrieta | CE SUB 12 Rapido 2023 | Torre Attack: Fianchetto Defense | |
| Jul 15, 2023 | Truter | 0–1 | Najar Arrieta | CE SUB 12 Rapido 2023 | Sicilian Defense: Accelerated Dragon, Modern Variation | |
| Jul 14, 2023 | Najar Arrieta | 1–0 | Goni Sierro | CE Sub 12 2023 | Alekhine Defense: Four Pawns Attack, Main Line | |
| Jul 14, 2023 | Lorente Melcon | 0–1 | Najar Arrieta | CE Sub 12 2023 | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Jul 13, 2023 | Serna Puerto | ½–½ | Najar Arrieta | CE Sub 12 2023 | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Jul 12, 2023 | Najar Arrieta | 1–0 | Presas Gharbi | CE Sub 12 2023 | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Jul 12, 2023 | Jaglinski | 0–1 | Najar Arrieta | CE Sub 12 2023 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jul 11, 2023 | Najar Arrieta | ½–½ | Rivero Gil | CE Sub 12 2023 | French Defense: Winawer Variation, Positional Variation | |
| Jul 10, 2023 | Najar Arrieta | 1–0 | Gonzalez Jimenez | CE Sub 12 2023 | Scotch Game: Classical Variation, Intermezzo Variation | |
| Jul 10, 2023 | Amat Davins | ½–½ | Najar Arrieta | CE Sub 12 2023 | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| — | Najar Arrieta | 0–1 | Atares Buisan | juvenil_2025 | Sicilian Defense: Four Knights Variation | |
| — | Najar Arrieta | ½–½ | Gutierrez Garcia | juvenil_2025 | Sicilian Defense: Taimanov Variation, Szén Variation | |
| — | Najar Arrieta | ½–½ | Dieguez Novoa | juvenil_2025 | Sicilian Defense: Four Knights Variation | |
| — | Paniagua Tomillo | 0–1 | Najar Arrieta | juvenil_2025 | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Early Deviations | |
| — | Exposito Milan | 1–0 | Najar Arrieta | juvenil_2025 | Grünfeld Defense: Three Knights Variation, Hungarian Attack | |
