| Mar 8, 2026 | Posocco De Grandi | ½–½ | Declerck | Round 9: Posocco De Grandi, Marc - Declerck, Timothee | Catalan Opening: Closed | |
| Mar 7, 2026 | Gourion | ½–½ | Posocco De Grandi | Round 8: Gourion, Sacha - Posocco De Grandi, Marc | Trompowsky Attack | |
| Mar 7, 2026 | Posocco De Grandi | ½–½ | Borceux | Round 7: Posocco De Grandi, Marc - Borceux, Theophile | Queen's Gambit Declined: Chigorin Defense, Exchange Variation | |
| Mar 6, 2026 | Posocco De Grandi | 1–0 | Kerckhove | Round 6: Posocco De Grandi, Marc - Kerckhove, Cody | Grünfeld Defense: Three Knights Variation, Burille Variation | |
| Mar 6, 2026 | Foppolo | 1–0 | Posocco De Grandi | Round 5: Foppolo, Marvin - Posocco De Grandi, Marc | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Mar 5, 2026 | Roubaud | 0–1 | Posocco De Grandi | Round 3: Roubaud, Louis-Alexandre - Posocco De Grandi, Marc | Rapport-Jobava System | |
| Mar 4, 2026 | Posocco De Grandi | 1–0 | Desprats Exposito | Round 2: Posocco De Grandi, Marc - Desprats Exposito, Justin | Dutch Defense: Hopton Attack | |
| Mar 4, 2026 | Posocco De Grandi | ½–½ | Ladier | Round 4: Posocco De Grandi, Marc - Ladier, Lucas | Benoni Defense: Modern Variation | |
| Mar 4, 2026 | Ferreira Fernandes | 0–1 | Posocco De Grandi | Round 1: Ferreira Fernandes, Alex - Posocco De Grandi, Marc | Sicilian Defense: Old Sicilian | |
| Sep 30, 2025 | AlJamaat | ½–½ | Posocco De Grandi | Round 11: AlJamaat, Khaled - Posocco De Grandi, Marc | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation | |
| Sep 29, 2025 | Posocco De Grandi | 1–0 | Cienfuegos Torres | Round 10: Posocco De Grandi, Marc - Cienfuegos Torres, Cristopher Alejandro | Indian Defense: Anti-Nimzo-Indian | |
| Sep 27, 2025 | Posocco De Grandi | ½–½ | Baipeissov | Round 8: Posocco De Grandi, Marc - Baipeissov, Aliakbar | Queen's Indian Defense: Classical Variation, Traditional Variation, Nimzowitsch Line | |
| Sep 26, 2025 | Enkhmandal | ½–½ | Posocco De Grandi | Round 7: Enkhmandal, Bayaraa - Posocco De Grandi, Marc | Catalan Opening: Open Defense, Classical Line | |
| Sep 24, 2025 | Posocco De Grandi | ½–½ | Sagyndyk Sanzhar | Round 6: Posocco De Grandi, Marc - Sagyndyk Sanzhar | King's Indian Defense: Normal Variation, Standard Development | |
| Sep 23, 2025 | Baghmanyan | 1–0 | Posocco De Grandi | Round 5: Baghmanyan, Hakob - Posocco De Grandi, Marc | Queen's Gambit Declined: Barmen Variation | |
| Sep 22, 2025 | Posocco De Grandi | ½–½ | Herath | Round 4: Posocco De Grandi, Marc - Herath, H M Vihanga Madhara | Indian Defense: Anti-Nimzo-Indian | |
| Sep 21, 2025 | Solovev | 0–1 | Posocco De Grandi | Round 3: Solovev, Nikolai - Posocco De Grandi, Marc | Sicilian Defense: Classical Variation | |
| Sep 20, 2025 | Posocco De Grandi | 0–1 | Mirzhanov | Round 2: Posocco De Grandi, Marc - Mirzhanov, Arlan | Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation | |
| Jul 27, 2025 | Posocco De Grandi | 0–1 | De Lomas Busquets | 41 Open Internacional d'Escacs d'Andorra 2025 | Queen's Gambit Accepted: Old Variation | |
| Jun 28, 2025 | Daidone | 0–1 | Posocco | Round 1: Daidone, Davide - Posocco, Marc | Yusupov-Rubinstein System | |
| Jun 28, 2025 | Posocco | ½–½ | Rattazzi | Round 2: Posocco, Marc - Rattazzi, Giovanni | Queen's Gambit Declined | |
| Jul 6, 2024 | Posocco | 1–0 | Bisetto | Round 9: Posocco, Marc - Bisetto, Alessandro Federico | Queen's Gambit Declined: Marshall Defense | |
| Jul 6, 2024 | Posocco | 1–0 | Cantoro | Round 9: Posocco, Marc - Cantoro, Fabrizio | Queen's Gambit Declined: Marshall Defense | |
| Jul 6, 2024 | Posocco | * | ADELE AGNOLETTI | Round 9: Posocco, Marc - ADELE AGNOLETTI | Four Knights Game: Italian Variation | |
| Jul 5, 2024 | De Ieso | 0–1 | Posocco | Round 8: De Ieso, Marco - Posocco, Marc | Petrov's Defense: Cozio Attack | |
| Jul 4, 2024 | Posocco | 1–0 | Leoni | Round 7: Posocco, Marc - Leoni, Gabriele | Catalan Opening: Closed | |
| Jun 28, 2024 | Posocco | 1–0 | Di Martino | Round 2: Posocco, Marc - Di Martino, Antonio | Queen's Gambit Declined | |
| Jun 28, 2024 | Posocco | 1–0 | Semerano | Round 4: Posocco, Marc - Semerano, Gherardo | Queen's Gambit Declined: Baltic Defense, Pseudo-Slav | |
| Jun 28, 2024 | Fattore | 0–1 | Posocco | Round 1: Fattore, Giacomo - Posocco, Marc | Petrov's Defense: French Attack | |
| Jun 28, 2024 | CIUCHI NICOLO Player 186 | 0–1 | Posocco | Round 3: CIUCHI NICOLO Player 186 - Posocco, Marc | Petrov's Defense: Classical Attack, Marshall Variation | |
| Jun 28, 2024 | Ripani | 0–1 | Posocco | Round 5: Ripani, Sebastiano - Posocco, Marc | Four Knights Game: Scotch Variation Accepted | |
| Jun 28, 2024 | Bisetto | 1–0 | Posocco | Round 6: Bisetto, Alessandro Federico - Posocco, Marc | Petrov's Defense: Modern Attack | |
| — | Munoz Ferreira | 1–0 | Posocco De Grandi | Leca Chess Open 2025 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
