| Apr 3, 2026 | Moreno Perez | 1–0 | Mussanti | Round 8: Moreno Perez, Tobias Sebastian - Mussanti, Diego | Catalan Opening: Open Defense, Classical Line | |
| Feb 17, 2026 | Mussanti | ½–½ | Petti | Round 9: Mussanti, Diego - Petti, Luca Giovanni | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Feb 16, 2026 | Mussanti | 0–1 | Tristan | Round 7: Mussanti, Diego - Tristan, Leonardo | Italian Game: Classical Variation, Giuoco Pianissimo, with a5 | |
| Feb 15, 2026 | Flores | 1–0 | Mussanti | Round 5: Flores, Diego - Mussanti, Diego | English Opening: Symmetrical Variation | |
| Feb 15, 2026 | Flores | 1–0 | Mussanti | Round 4: Flores, Diego - Mussanti, Diego | English Opening: Symmetrical Variation | |
| Dec 19, 2025 | Mussanti | 0–1 | Dallura | Round 7: Mussanti, Diego - Dallura, Juan | Sicilian Defense: Hyperaccelerated Fianchetto | |
| Dec 19, 2025 | Molina | 0–1 | Mussanti | Round 6: Molina, Pablo Sebastian - Mussanti, Diego | Sicilian Defense: Snyder Variation | |
| Dec 19, 2025 | Mussanti | ½–½ | Geloso | Round 5: Mussanti, Diego - Geloso, Claudio | Italian Game: Giuoco Pianissimo | |
| Dec 19, 2025 | Harper | 0–1 | Mussanti | Round 4: Harper, Horacio - Mussanti, Diego | Queen's Gambit Accepted: Central Variation, McDonnell Defense | |
| Dec 19, 2025 | Mussanti | 1–0 | Roman | Round 3: Mussanti, Diego - Roman, Maximiliano | Nimzowitsch Defense: Declined Variation | |
| Dec 19, 2025 | Abalo | 0–1 | Mussanti | Round 2: Abalo, Yamila - Mussanti, Diego | Sicilian Defense: Grand Prix Attack | |
| Dec 19, 2025 | Mussanti | 1–0 | Maximo Defeo | Round 1: Mussanti, Diego - Maximo Defeo | Scotch Game: Lolli Variation | |
| Nov 24, 2025 | Perez Pietronave | * | Mussanti | Round 7: Perez Pietronave, Carlos - Mussanti, Diego | Sicilian Defense: Kan Variation, Wing Attack | |
| Nov 22, 2025 | Mussanti | ½–½ | Dolezal | Round 4: Mussanti, Diego - Dolezal, Cristian | Czech Defense | |
| Nov 22, 2025 | Romanelli | ½–½ | Mussanti | Round 3: Romanelli, Gabriel - Mussanti, Diego | Catalan Opening: Open Defense, Classical Line | |
| Nov 21, 2025 | De Dovitiis | ½–½ | Mussanti | Round 2: De Dovitiis, Alejo - Mussanti, Diego | Sicilian Defense: Taimanov Variation | |
| Jul 17, 2025 | Ganza Svidler | 0–1 | Mussanti | Round 9: Ganza Svidler , Pedro - Mussanti, Diego | Sicilian Defense: French Variation, Westerinen Attack | |
| Jul 16, 2025 | Mussanti | ½–½ | Rioseco Pinochet | Round 8: Mussanti, Diego - Rioseco Pinochet, Fernan | Sicilian Defense: Richter-Rauzer Variation, Modern Variation | |
| Jul 15, 2025 | Mussanti | ½–½ | Arana | Round 7: Mussanti, Diego - Arana, Augusto | Sicilian Defense: Kan Variation, Knight Variation | |
| Jul 14, 2025 | Zelaya Aragon | ½–½ | Mussanti | Round 6: Zelaya Aragon, Eros Ivan - Mussanti, Diego | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Jul 12, 2025 | Mussanti | 0–1 | Dolezal | Round 3: Mussanti, Diego - Dolezal, Cristian | Modern Defense: Two Knights Variation | |
| Apr 15, 2025 | Axarlian | ½–½ | Mussanti | Round 5: Axarlian, Carlos - Mussanti, Diego | Sicilian Defense: Scheveningen Variation, English Attack, with f3 | |
| Apr 14, 2025 | Mussanti | ½–½ | Ruiz | Round 4: Mussanti, Diego - Ruiz, Juan Ignacio | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Apr 2, 2025 | Mussanti | 0–1 | Rodriguez Vila | III Abierto Internacional de FAOGBA Ciudades de Luján y General Rodríguez | Modern Defense: Two Knights Variation | |
| Apr 2, 2025 | Villegas | ½–½ | Mussanti | III Abierto Internacional de FAOGBA Ciudades de Luján y General Rodríguez | Sicilian Defense: Taimanov Variation, Normal Variation | |
| Apr 2, 2025 | Schnaider | 1–0 | Mussanti | III Abierto Internacional de FAOGBA Ciudades de Luján y General Rodríguez | Rapport-Jobava System | |
| Mar 9, 2025 | Mussanti | 1–0 | Molina | Round 5: Mussanti, Diego - Molina, Pablo Sebastian | Sicilian Defense: Najdorf Variation | |
| Mar 8, 2025 | Garcia | 0–1 | Mussanti | Round 4: Garcia, Pablo David - Mussanti, Diego | Sicilian Defense: Taimanov Variation | |
| Feb 9, 2025 | Llanos | 0–1 | Mussanti | Round 6: Llanos, Joaquin - Mussanti, Diego | Queen's Gambit Accepted: Classical Defense | |
| Feb 8, 2025 | Mussanti | 1–0 | Lanfranco | Round 3: Mussanti, Diego - Lanfranco, Cristian Hernan | Sicilian Defense: Najdorf Variation | |
| Mar 7, 2025 | Mussanti | 1–0 | Mauro Llanos | Round 1: Mussanti, Diego - Mauro Llanos | Czech Defense | |
| Mar 7, 2025 | Anderica | ½–½ | Mussanti | Round 2: Anderica, Agustin Antonio - Mussanti, Diego | Queen's Gambit Accepted: Classical Defense, Main Line | |
| Jun 6, 2024 | Miranda | ½–½ | Mussanti | Round 6: Miranda, Rafael - Mussanti, Diego | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Jun 4, 2024 | Villarreal | 1–0 | Mussanti | Round 4: Villarreal, Agustin - Mussanti, Diego | Queen's Gambit Accepted: Janowski-Larsen Variation | |
| Jun 3, 2024 | Mussanti | ½–½ | Perez | Round 3: Mussanti, Diego - Perez, Daniel | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Feb 7, 2024 | Leonardo Tristan | 1–0 | Diego Mussanti | Round 5: Leonardo Tristan - Diego Mussanti | Queen's Pawn Game: Symmetrical Variation | |
| Oct 27, 2024 | Mussanti | ½–½ | Romero Barreto | Round 9: Mussanti, Diego - Romero Barreto, Jaime Jose | Sicilian Defense: Kalashnikov Variation | |
| Oct 24, 2024 | Slipak | 1–0 | Mussanti | Round 6: Slipak, Sergio - Mussanti, Diego | Queen's Gambit Accepted: Mannheim Variation | |
| Oct 23, 2024 | Mussanti | 1–0 | Asprelli | Round 5: Mussanti, Diego - Asprelli, Gaspar | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Oct 20, 2024 | Acosta | 1–0 | Mussanti | Round 2: Acosta, Pablo Ismael - Mussanti, Diego | Rubinstein Opening: Bogoljubow Defense | |
| Aug 18, 2024 | Mussanti | ½–½ | Ibarra | Round 9: Mussanti, Diego - Ibarra, Juan Martin | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Nyezhmetdinov Attack | |
| Aug 16, 2024 | Flores | 1–0 | Mussanti | Round 5: Flores, Diego - Mussanti, Diego | English Opening: King's English Variation, Botvinnik System | |
| Aug 15, 2024 | Romero Barreto | 1–0 | Mussanti | Round 3: Romero Barreto, Jaime Jose - Mussanti, Diego | Zukertort Opening: Sicilian Invitation | |
| Nov 5, 2023 | Jean-Marc Degraeve | 0–1 | Diego Mussanti | Round 11: Jean-Marc Degraeve - Diego Mussanti | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Nov 4, 2023 | Diego Mussanti | 1–0 | Rogerio Sperb Becker | Round 10: Diego Mussanti - Rogerio Sperb Becker | Caro-Kann Defense: Tartakower Variation | |
| Nov 2, 2023 | Diego Mussanti | 0–1 | Georg Mohr | Round 8: Diego Mussanti - Georg Mohr | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Nov 1, 2023 | Nikolai Vlassov | 1–0 | Diego Mussanti | Round 7: Nikolai Vlassov - Diego Mussanti | Sicilian Defense: Kan Variation, Wing Attack | |
| Oct 30, 2023 | Diego Mussanti | ½–½ | Carlos S. Matamoros Franco | 50+ World Senior Championship | Caro-Kann Defense: Two Knights Attack | |
| Oct 29, 2023 | Mrva | ½–½ | Mussanti | 50+ World Senior Championship | Sicilian Defense: Taimanov Variation, Normal Variation | |
| Oct 28, 2023 | Mussanti | 1–0 | Melero Sanchez | 50+ World Senior Championship | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Oct 26, 2023 | Mussanti | * | Haessel | 50+ World Senior Championship | ? | |
| Oct 25, 2023 | Badano | * | Mussanti | 50+ World Senior Championship | ? | |
| Apr 16, 2022 | Manuel Cristobal | 1–0 | Diego Mussanti | Round 9: Manuel Cristobal - Diego Mussanti | Queen's Pawn Game: Colle System | |
| Apr 13, 2022 | Diego Mussanti | 0–1 | Pablo Acosta | Round 6: Diego Mussanti - Pablo Acosta | French Defense: Classical Variation, Steinitz Variation | |
| Apr 11, 2022 | Diego Mussanti | ½–½ | Horacio Saldaño Dayer | Round 4: Diego Mussanti - Horacio Saldaño Dayer | French Defense: Winawer Variation, Advance Variation | |
