| — | Enrique Tejedor Fuente | ½–½ | Alejandro Domingo Nunez | 8th 'Ciudad de Oviedo' Open | Caro-Kann Defense: Tartakower Variation | |
| — | Alejandro Domingo Nunez | ½–½ | Aramis Alvarez Pedraza | 8th 'Ciudad de Oviedo' Open | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| — | Gabriel Perez Perez | 0–1 | Alejandro Domingo Nunez | 8th 'Ciudad de Oviedo' Open | English Opening: Anglo-Indian Defense, King's Indian Formation, Double Fianchetto | |
| Dec 30, 2023 | Alejandro Domingo Nunez | ½–½ | Adrian Exposito Milan | Round 9: Alejandro Domingo Nunez - Adrian Exposito Milan | Sicilian Defense: Moscow Variation | |
| Dec 30, 2023 | Alejandro Domingo Nunez | 1–0 | Dani Odriozola Coscolin | Round 8: Alejandro Domingo Nunez - Dani Odriozola Coscolin | Zukertort Opening: Nimzo-Larsen Variation | |
| Dec 29, 2023 | Antonio Granero Roca | 0–1 | Alejandro Domingo Nunez | Round 7: Antonio Granero Roca - Alejandro Domingo Nunez | Queen's Pawn Game | |
| Dec 29, 2023 | Alejandro Domingo Nunez | 1–0 | Saul Robledo Sanchez | Round 6: Alejandro Domingo Nunez - Saul Robledo Sanchez | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Dec 28, 2023 | Pablo Lopez Varela | 1–0 | Alejandro Domingo Nunez | Round 5: Pablo Lopez Varela - Alejandro Domingo Nunez | Caro-Kann Defense | |
| Dec 28, 2023 | Alejandro Domingo Nunez | 1–0 | Carlos Pardo Ruiz | Round 4: Alejandro Domingo Nunez - Carlos Pardo Ruiz | Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan | |
| Dec 27, 2023 | Frank Drill | 0–1 | Alejandro Domingo Nunez | Round 3: Frank Drill - Alejandro Domingo Nunez | Caro-Kann Defense: Maróczy Variation | |
| Dec 27, 2023 | Alejandro Domingo Nunez | 1–0 | Francisco Sa Martinez Rodriguez | Round 2: Alejandro Domingo Nunez - Francisco Sa Martinez Rodriguez | Italian Game: Classical Variation, Giuoco Pianissimo, Main Line | |
| Dec 26, 2023 | Miguel Angel Garcia Sanchez | 0–1 | Alejandro Domingo Nunez | Round 1: Miguel Angel Garcia Sanchez - Alejandro Domingo Nunez | Pseudo Queen's Indian Defense | |
| May 27, 2023 | Alejandro Domingo Nunez | 0–1 | Manuel Perez Candelario | Round 8: Alejandro Domingo Nunez - Manuel Perez Candelario | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| May 27, 2023 | Alejandro Domingo Nunez | * | Bernardo Cesar Maestre | Round 7: Alejandro Domingo Nunez - Bernardo Cesar Maestre | ? | |
| May 27, 2023 | Lennis Martinez Ramirez | ½–½ | Alejandro Domingo Nunez | Round 6: Lennis Martinez Ramirez - Alejandro Domingo Nunez | Zukertort Opening: Kingside Fianchetto | |
| May 27, 2023 | Daniel Ledesma Claros | * | Alejandro Domingo Nunez | Round 5: Daniel Ledesma Claros - Alejandro Domingo Nunez | ? | |
| May 27, 2023 | Alejandro Domingo Nunez | * | Manuel Carrabeo Garcia | Round 4: Alejandro Domingo Nunez - Manuel Carrabeo Garcia | ? | |
| May 27, 2023 | Alejandro Domingo Nunez | 0–1 | Alan Pichot | Round 3: Alejandro Domingo Nunez - Alan Pichot | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| May 27, 2023 | Jose Manuel Gomez Solis | * | Alejandro Domingo Nunez | Round 2: Jose Manuel Gomez Solis - Alejandro Domingo Nunez | ? | |
| May 27, 2023 | Alejandro Domingo Nunez | * | Francisco Ligero Marin | Round 1: Alejandro Domingo Nunez - Francisco Ligero Marin | ? | |
| Apr 10, 2023 | Alejandro Domingo Nunez | 0–1 | Daniil Yuffa | Ronda 9: Alejandro Domingo Nunez - Daniil Yuffa | King's Indian Attack: Symmetrical Defense | |
| Apr 9, 2023 | Jakub Kosakowski | 1–0 | Alejandro Domingo Nunez | Ronda 7: Jakub Kosakowski - Alejandro Domingo Nunez | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Apr 8, 2023 | Alejandro Domingo Nunez | ½–½ | Arthur Pijpers | Ronda 6: Alejandro Domingo Nunez - Arthur Pijpers | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Apr 6, 2023 | Evgeny Postny | 1–0 | Alejandro Domingo Nunez | Ronda 3: Evgeny Postny - Alejandro Domingo Nunez | Queen's Indian Defense: Fianchetto Variation, Kramnik Variation | |
| Jul 20, 2022 | Ruben Domingo Nunez | ½–½ | Alejandro Domingo Nunez | Round 5: Ruben Domingo Nunez - Alejandro Domingo Nunez | French Defense: Exchange Variation | |
