| Apr 30, 2026 | Pescatore | ½–½ | Pegno | Finals: Pescatore, Lorenzo - Pegno, Mattia | Zukertort Opening | |
| Apr 29, 2026 | Pegno | 1–0 | Gigovski | Semifinals: Pegno, Mattia - Gigovski, Gjoko | Nimzo-Indian Defense: Classical Variation, Noa Variation | |
| Apr 27, 2026 | Sarno | ½–½ | Pegno | Round 6: Sarno, Spartaco - Pegno, Mattia | English Opening: Symmetrical Variation, Botvinnik System Reversed, with e3 | |
| Apr 27, 2026 | Pegno | 0–1 | Montalbano | Round 5: Pegno, Mattia - Montalbano, Federico | Queen's Gambit Declined: Modern Variation | |
| Apr 26, 2026 | Loiacono | 0–1 | Pegno | Round 4: Loiacono, Antonio - Pegno, Mattia | Zukertort Opening: Sicilian Invitation | |
| Apr 25, 2026 | Pegno | 0–1 | Bertagnolli | Round 3: Pegno, Mattia - Bertagnolli, Alexander | Bogo-Indian Defense: Grünfeld Variation | |
| Apr 25, 2026 | Tripodi | ½–½ | Pegno | Round 2: Tripodi, Enzo - Pegno, Mattia | Ruy Lopez: Exchange Variation, Keres Variation | |
| Apr 24, 2026 | Pegno | ½–½ | Genocchio | Round 1: Pegno, Mattia - Genocchio, Daniele | King's Indian Defense: Normal Variation | |
| Jan 3, 2026 | Petroff | * | Pegno | Round 9: Petroff, Vlad - Pegno, Mattia | ? | |
| Jan 2, 2026 | Pegno | 0–1 | Skrbec | Round 8: Pegno, Mattia - Skrbec, Leon | Queen's Gambit Declined | |
| Jan 1, 2026 | Hovhannisyan | 1–0 | Pegno | Round 7: Hovhannisyan, Mher - Pegno, Mattia | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Dec 31, 2025 | Pegno | 1–0 | Kozlovic | Round 6: Pegno, Mattia - Kozlovic, Jernej | Bogo-Indian Defense: Grünfeld Variation | |
| Dec 30, 2025 | Di Benedetto | 1–0 | Pegno | Round 5: Di Benedetto, Edoardo - Pegno, Mattia | Queen's Pawn Game: Accelerated London System, Steinitz Countergambit | |
| Dec 29, 2025 | Pegno | ½–½ | Plenca | Round 4: Pegno, Mattia - Plenca, Jadranko | Queen's Gambit Declined: Queen's Knight Variation | |
| Dec 29, 2025 | Bailet | ½–½ | Pegno | Round 3: Bailet, Pierre - Pegno, Mattia | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Dec 28, 2025 | Pegno | 1–0 | Marn | Round 2: Pegno, Mattia - Marn, Jan | Queen's Gambit Declined: Queen's Knight Variation | |
| Sep 21, 2025 | Castaldo | ½–½ | Pegno | Round 9: Castaldo, Folco Vincenzo - Pegno, Mattia | Nimzo-Larsen Attack: Modern Variation | |
| Sep 21, 2025 | Pegno | 0–1 | Moroni | Round 4: Pegno, Mattia - Moroni, Luca Jr | Modern Defense: Two Knights Variation, Suttles Variation | |
| Jan 3, 2025 | Savanovic | ½–½ | Pegno | Round 9: Savanovic, Aleksandar - Pegno, Mattia | Sicilian Defense: Scheveningen Variation, Classical Variation, Paulsen Variation | |
| Jan 2, 2025 | Pegno | 0–1 | Hovhannisyan | Round 8: Pegno, Mattia - Hovhannisyan, Mher | Queen's Gambit Declined: Tarrasch Defense, Pseudo-Tarrasch Bishop Attack | |
| Jan 1, 2025 | Skrbec | ½–½ | Pegno | Round 7: Skrbec, Leon - Pegno, Mattia | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Aug 15, 2024 | Omelja | 0–1 | Pegno | Round 9: Omelja, Artem - Pegno, Mattia | Queen's Pawn Game: Colle System | |
| Aug 14, 2024 | Pegno | 1–0 | Domalchuk-Jonasson | Round 8: Pegno, Mattia - Domalchuk-Jonasson, Aleksandr | Queen's Gambit Declined: Barmen Variation | |
| Aug 12, 2024 | Nazari | 1–0 | Pegno | Round 6: Nazari, Arad - Pegno, Mattia | King's Gambit Accepted: Bonsch-Osmolovsky Variation | |
| Aug 12, 2024 | Pegno | 0–1 | Wieczorek | Round 5: Pegno, Mattia - Wieczorek, Oskar | Queen's Pawn Game: Barry Attack | |
| Aug 11, 2024 | Godena | 0–1 | Pegno | Round 4: Godena, Michele - Pegno, Mattia | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Aug 10, 2024 | Pegno | ½–½ | Fromm | Round 1: Pegno, Mattia - Fromm, Marius | Nimzo-Indian Defense: Classical Variation, Noa Variation | |
| Jul 28, 2024 | Pulvirenti | ½–½ | Pegno | Round 9: Pulvirenti, Davide - Pegno, Mattia | Queen's Gambit Accepted: Alekhine Defense, Haberditz Variation | |
| Jul 27, 2024 | Pegno | 0–1 | Titze | Round 8: Pegno, Mattia - Titze, Leo | Nimzo-Indian Defense: Classical Variation, Noa Variation | |
| Jul 26, 2024 | Pegno | 1–0 | Maglioni | Round 7: Pegno, Mattia - Maglioni, Leonardo | Semi-Slav Defense: Anti-Moscow Gambit | |
| Jul 25, 2024 | Cocchi | 1–0 | Pegno | Round 6: Cocchi, Andrea - Pegno, Mattia | English Opening: Symmetrical Variation, Botvinnik System Reversed, with Nf3 | |
| Jul 24, 2024 | Pegno | 0–1 | Boraso | Round 5: Pegno, Mattia - Boraso, Alessio | Nimzo-Indian Defense: Classical Variation | |
| Jul 23, 2024 | Barp | 0–1 | Pegno | Round 4: Barp, Alberto - Pegno, Mattia | Catalan Opening: Open Defense, Modern Sharp Variation | |
| Jul 22, 2024 | Pegno | 1–0 | Cassi | Round 3: Pegno, Mattia - Cassi, Elisa | Four Knights Game | |
| Jul 22, 2024 | Yao | 1–0 | Pegno | Round 2: Yao, Stefano - Pegno, Mattia | Queen's Gambit Accepted: Old Variation | |
| Jul 21, 2024 | Pegno | * | Salzano Masini | Round 1: Pegno, Mattia - Salzano Masini, Andre Carlos | ? | |
| Jul 6, 2024 | Cina` | ½–½ | Pegno | Round 9: Cina`, Vittorio - Pegno, Mattia | English Opening: Symmetrical Variation, Ultra-Symmetrical Variation | |
| Jul 5, 2024 | Pegno | 1–0 | Bodini | Round 8: Pegno, Mattia - Bodini, Ludovico | Queen's Gambit Declined: Semi-Tarrasch Defense, Main Line | |
| Jul 4, 2024 | Catanzaro | 0–1 | Pegno | Round 7: Catanzaro, Claudio - Pegno, Mattia | Ruy Lopez: Morphy Defense, Classical Defense Deferred | |
| Jun 30, 2024 | Pegno | 0–1 | El Bzizi | Round 2: Pegno, Mattia - El Bzizi, Anas | Queen's Gambit Declined: Three Knights Variation | |
| Apr 27, 2024 | Aghayev | 1–0 | Pegno | Sardinia Worldchess | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Apr 8, 2024 | Titze | 1–0 | Pegno | Group B | Semi-Slav Defense: Stoltz Variation | |
| Dec 31, 2024 | Pegno | ½–½ | Kalosha | Round 6: Pegno, Mattia - Kalosha, Zhiulien Oleksii | Queen's Gambit Declined | |
| Dec 30, 2024 | Martinovici | 1–0 | Pegno | Round 5: Martinovici, Ilia - Pegno, Mattia | Queen's Pawn Game: Symmetrical Variation | |
| Dec 29, 2024 | Pegno | 1–0 | Marn | Round 4: Pegno, Mattia - Marn, Jan | Grünfeld Defense: Exchange Variation, Classical Variation | |
| Dec 29, 2024 | Hercegovac | 0–1 | Pegno | Round 3: Hercegovac, Neven - Pegno, Mattia | Scotch Game: Tartakower Variation | |
| Dec 28, 2024 | Pegno | * | Kekic | Round 2: Pegno, Mattia - Kekic, Urban | ? | |
| Dec 27, 2024 | Cardili | * | Pegno | Round 1: Cardili, Mariano - Pegno, Mattia | ? | |
| Nov 19, 2024 | Coursaget | ½–½ | Pegno | Round 11: Coursaget, Nicolas - Pegno, Mattia | Catalan Opening: Open Defense, Modern Sharp Variation | |
| Nov 18, 2024 | Pegno | 0–1 | Vanczak | Round 10: Pegno, Mattia - Vanczak, Tamas | King's Indian Defense: Normal Variation | |
| Nov 17, 2024 | Tadic | ½–½ | Pegno | Round 9: Tadic, Stefan - Pegno, Mattia | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Nov 15, 2024 | Aizenberg | 1–0 | Pegno | Round 7: Aizenberg, Benny - Pegno, Mattia | Ruy Lopez: Morphy Defense, Classical Defense Deferred | |
| Nov 12, 2024 | Peyrer | 1–0 | Pegno | Round 5: Peyrer, Konstantin - Pegno, Mattia | Queen's Gambit Accepted: Normal Variation | |
| Nov 10, 2024 | Gharibyan | 1–0 | Pegno | Round 3: Gharibyan, Mamikon - Pegno, Mattia | Queen's Pawn Game: London System | |
| Nov 8, 2024 | Muradli | 1–0 | Pegno | Round 1: Muradli, Mahammad - Pegno, Mattia | Catalan Opening: Open Defense, Modern Sharp Variation | |
| Nov 24, 2023 | Sahakyan | 1–0 | Pegno | FIDEWORLDYOUTHCHESSCHAMPIONSHIP Open 18 | Ruy Lopez: Classical Variation | |
| Nov 22, 2023 | Baranciuc | 1–0 | Pegno | FIDEWORLDYOUTHCHESSCHAMPIONSHIP Open 18 | Rapport-Jobava System | |
| Nov 21, 2023 | Pegno | 0–1 | Davtyan | FIDEWORLDYOUTHCHESSCHAMPIONSHIP Open 18 | King's Indian Defense: Normal Variation | |
| Nov 20, 2023 | Krallis | 0–1 | Pegno | FIDEWORLDYOUTHCHESSCHAMPIONSHIP Open 18 | English Opening: Symmetrical Variation, Two Knights Variation | |
| Nov 17, 2023 | Pegno | 0–1 | Domalchuk-Jonasson | FIDEWORLDYOUTHCHESSCHAMPIONSHIP Open 18 | Queen's Pawn Game: London System, with e6 | |
| Nov 15, 2023 | Pegno | 0–1 | Czernek | FIDEWORLDYOUTHCHESSCHAMPIONSHIP Open 18 | Sicilian Defense: Chekhover Variation | |
| Nov 13, 2023 | Pegno | 0–1 | Kostolansky | FIDEWORLDYOUTHCHESSCHAMPIONSHIP Open 18 | Nimzo-Indian Defense: Classical Variation, Noa Variation | |
| Mar 14, 2021 | Bardone | 1–0 | Pegno | Spring Festival Weekend Bassano | Catalan Opening: Closed, Main Line | |
| Mar 13, 2021 | Pegno | ½–½ | Rindone | Spring Festival Weekend Bassano | Sicilian Defense: Najdorf Variation, Opocensky Variation, Modern Line | |
| — | Di Berardino | 1–0 | Pegno | Round 3: Di Berardino, Diego Rafael - Pegno, Mattia | English Opening: Agincourt Defense, Neo-Catalan Declined | |