| Apr 12, 2026 | Golya | 1–0 | Marton-John | Hungarian Youth Championship 2026, Boys | Vienna Game: Vienna Gambit, Bardeleben Variation | |
| Apr 11, 2026 | Marton-John | ½–½ | Nagy | Hungarian Youth Championship 2026, Boys | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Apr 10, 2026 | Zhao | ½–½ | Marton-John | Hungarian Youth Championship 2026, Boys | Scotch Game: Meitner Variation | |
| Apr 9, 2026 | Marton-John | 1–0 | Horvath | Hungarian Youth Championship 2026, Boys | Sicilian Defense: Richter-Rauzer Variation | |
| Apr 9, 2026 | Krisch | 1–0 | Marton-John | Hungarian Youth Championship 2026, Boys | Scotch Game: Potter Variation | |
| Apr 8, 2026 | Marton-John | 1–0 | Szantai | Hungarian Youth Championship 2026, Boys | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| Apr 7, 2026 | Huszar | 0–1 | Marton-John | Hungarian Youth Championship 2026, Boys | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Apr 7, 2026 | Marton-John | 1–0 | Kertesz | Hungarian Youth Championship 2026, Boys | Sicilian Defense: Kalashnikov Variation | |
| Apr 6, 2026 | Mile | 0–1 | Marton-John | Hungarian Youth Championship 2026, Boys | Queen's Pawn Game: London System | |
| Oct 26, 2025 | Marton-John | 1–0 | Lovasi | Magyar Nemzeti Gyermek Sakk Csapatbajnokság | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Oct 25, 2025 | Fan | 1–0 | Marton-John | Magyar Nemzeti Gyermek Sakk Csapatbajnokság | Ponziani Opening: Steinitz Variation | |
| Oct 24, 2025 | Debreczeni | ½–½ | Marton-John | Magyar Nemzeti Gyermek Sakk Csapatbajnokság | Four Knights Game: Spanish Variation, Symmetrical Variation | |
| Oct 16, 2025 | Krisch | 1–0 | Marton-John | Magyar Nemzeti Gyermek Sakk Csapatbajnokság | Scotch Game: Potter Variation | |
| Oct 16, 2025 | Marton-John | ½–½ | Li | Magyar Nemzeti Gyermek Sakk Csapatbajnokság | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Oct 16, 2025 | Lako | 1–0 | Marton-John | Magyar Nemzeti Gyermek Sakk Csapatbajnokság | King's Indian Attack | |
| Jul 11, 2025 | Marton-John | ½–½ | Perunovic | Round 7: Marton-John, Almos Kiran - Perunovic, Uros | Ruy Lopez: Morphy Defense, Tarrasch Variation | |
| Jul 10, 2025 | Sahin | ½–½ | Marton-John | Round 6: Sahin, Bora - Marton-John, Almos Kiran | Ruy Lopez: Exchange Variation, Keres Variation | |
| Jul 7, 2025 | Marton-John | 0–1 | Barbaric | Round 3: Marton-John, Almos Kiran - Barbaric, Matija | Caro-Kann Defense: Exchange Variation | |
| Jul 6, 2025 | Marton-John | ½–½ | Cazacu | Round 2: Marton-John, Almos Kiran - Cazacu, Iustin-Nicolas | Sicilian Defense: Kalashnikov Variation | |
| Jul 5, 2025 | Marton-John | 1–0 | Cominotto | Round 1: Marton-John, Almos Kiran - Cominotto, Mauro | French Defense: Tarrasch Variation, Chistyakov Defense | |
| Jun 14, 2025 | Marton-John | 0–1 | Maton | 2025 FIDE World Blitz Team Championschip Pool D | Sicilian Defense: Four Knights Variation, Cobra Variation | |
| Jun 14, 2025 | Nurakyn | 0–1 | Marton-John | 2025 FIDE World Blitz Team Championschip Pool D | Queen's Gambit Accepted: Normal Variation, Traditional System | |
| Jun 14, 2025 | Marton-John | 1–0 | Velayutham | 2025 FIDE World Blitz Team Championschip Pool D | Caro-Kann Defense: Two Knights Attack | |
| Jun 14, 2025 | Zhunusbekova | 1–0 | Marton-John | 2025 FIDE World Blitz Team Championschip Pool D | Vienna Game: Falkbeer Variation | |
| Jun 14, 2025 | Marton-John | 1–0 | Smolinski | 2025 FIDE World Blitz Team Championschip Pool D | English Opening: King's English Variation, Reversed Closed Sicilian | |
| Jun 14, 2025 | Andries | ½–½ | Marton-John | 2025 FIDE World Blitz Team Championschip Pool D | Scotch Game: Potter Variation | |
| Jun 14, 2025 | Marton-John | ½–½ | Atharvaa P Tayade | 2025 FIDE World Blitz Team Championschip Pool D | Sicilian Defense: Classical Variation | |
| Jun 14, 2025 | Morell | 1–0 | Marton-John | 2025 FIDE World Blitz Team Championschip Pool D | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Jun 14, 2025 | Marton-John | 1–0 | Ongono | 2025 FIDE World Blitz Team Championschip Pool D | Scandinavian Defense: Main Line | |
| Jun 14, 2025 | Slavin | 0–1 | Marton-John | 2025 FIDE World Blitz Team Championschip Pool D | Ponziani Opening: Spanish Variation | |
| Jun 14, 2025 | Aiten | 1–0 | Marton-John | 2025 FIDE World Blitz Team Championschip Pool D | Queen's Pawn Game: Chigorin Variation | |
| Jun 14, 2025 | Marton-John | 1–0 | Han | 2025 FIDE World Blitz Team Championschip Pool D | English Opening: Caro-Kann Defensive System | |
| Jun 14, 2025 | Jain | 0–1 | Marton-John | 2025 FIDE World bLITZ Team Championschip Pool D | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Jun 13, 2025 | Mortazavi | ½–½ | Marton-John | Round 12: Mortazavi, Sami - Marton-John, Almos Kiran | Four Knights Game | |
| Jun 13, 2025 | Marton-John | 0–1 | Phulpin | Round 11: Marton-John, Almos Kiran - Phulpin, Theo | Sicilian Defense: Najdorf Variation | |
| Jun 13, 2025 | Marton-John | 0–1 | Rosenstein | Round 10: Marton-John, Almos Kiran - Rosenstein, Wadim | Sicilian Defense: Four Knights Variation | |
| Jun 13, 2025 | Smolinski | 1–0 | Marton-John | Round 9: Smolinski, Wojciech - Marton-John, Almos Kiran | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| Jun 12, 2025 | Marton-John | 1–0 | McCallum | Round 8: Marton-John, Almos Kiran - McCallum, Elliot | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Jun 12, 2025 | Yildiz | 1–0 | Marton-John | Round 7: Yildiz, Ali Aras - Marton-John, Almos Kiran | Scotch Game: Potter Variation | |
| Jun 12, 2025 | Marton-John | 0–1 | Soulier | Round 6: Marton-John, Almos Kiran - Soulier, Alfred | Sicilian Defense: Najdorf Variation | |
| Jun 12, 2025 | Zhang | 0–1 | Marton-John | Round 5: Zhang, Changjie - Marton-John, Almos Kiran | Vienna Game: Vienna Gambit, Bardeleben Variation | |
| Jun 11, 2025 | Watson | 1–0 | Marton-John | Round 4: Watson, Mikey J - Marton-John, Almos Kiran | Italian Game: Giuoco Pianissimo, Normal | |
| Jun 11, 2025 | Marton-John | 1–0 | Mani | 2025 FIDE World Rapid Team Championship | French Defense: Tarrasch Variation, Closed Variation, Main Line | |
| Jun 11, 2025 | Marton-John | ½–½ | Stojsin | 2025 FIDE World Rapid Team Championschip matches 11-18 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jun 11, 2025 | Ivanov | 1–0 | Marton-John | 2025 FIDE World Rapid Team Championschip matches 11-18 | English Opening: King's English Variation, Reversed Sicilian | |
| Apr 27, 2025 | Fan | 0–1 | Marton-John | Hungarian Youth Championship 2025, Open | Bishop's Opening: Vienna Hybrid | |
| Apr 26, 2025 | Marton-John | ½–½ | Minga-Nagy | Hungarian Youth Championship 2025, Open | Sicilian Defense: Paulsen-Basman Defense | |
| Apr 25, 2025 | Li | ½–½ | Marton-John | Hungarian Youth Championship 2025, Open | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| Apr 25, 2025 | Ilko-Toth | ½–½ | Marton-John | Hungarian Youth Championship 2025, Open | Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan | |
| Apr 24, 2025 | Marton-John | 1–0 | Szakolczai | Hungarian Youth Championship 2025, Open | Sicilian Defense: Kan Variation, Polugaevsky Variation | |
| Apr 22, 2025 | Kiss | 1–0 | Marton-John | Hungarian Youth Championship 2025, Open | Four Knights Game | |
| Apr 21, 2025 | Marton-John | 1–0 | Bihary | Hungarian Youth Championship 2025, Open | Sicilian Defense: Four Knights Variation, Cobra Variation | |
| Oct 29, 2024 | Marton-John | 1–0 | Hogyinszki | HUN Children's Team Ch. 2024 | Sicilian Defense: Accelerated Dragon, Maróczy Bind, Gurgenidze Variation | |
| Oct 29, 2024 | Zhao | 0–1 | Marton-John | HUN Children's Team Ch. 2024 | Scotch Game: Classical Variation | |
| Oct 28, 2024 | Huszar | 0–1 | Marton-John | HUN Children's Team Ch. 2024 | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| Oct 27, 2024 | Marton-John | ½–½ | Ma | HUN Children's Team Ch. 2024 | Sicilian Defense: Kalashnikov Variation | |
| Oct 27, 2024 | Minga-Nagy | 1–0 | Marton-John | HUN Children's Team Ch. 2024 | Italian Game: Two Knights Defense | |
| Oct 26, 2024 | Lovasi | 0–1 | Marton-John | HUN Children's Team Ch. 2024 | Scotch Game: Classical Variation | |
| Aug 20, 2024 | Marton-John | 0–1 | Pasula | Open10 | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Aug 20, 2024 | Marton-John | 0–1 | Andre | Open10 | Sicilian Defense: Four Knights Variation | |
| Aug 20, 2024 | Pasula | 0–1 | Marton-John | Open10 | Queen's Gambit Declined: Lasker Defense | |
| Aug 20, 2024 | Andre | 1–0 | Marton-John | Open10 | Italian Game: Two Knights Defense | |
| Aug 18, 2024 | Marton-John | 1–0 | Pasula | Open10 | Sicilian Defense: Taimanov Variation, Szén Variation | |
| Aug 18, 2024 | Marton-John | 0–1 | Ivanovic | Open10 | Sicilian Defense: Classical Variation | |
| Aug 18, 2024 | Nagy | 1–0 | Marton-John | Open10 | Ruy Lopez: Open | |
| Aug 18, 2024 | Eshkol | 0–1 | Marton-John | Open10 | Van't Kruijs Opening | |
| Aug 17, 2024 | Marton-John | 0–1 | Kryshtafor | Open10 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Aug 17, 2024 | Peray | 0–1 | Marton-John | Open10 | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| Aug 17, 2024 | Kopia | 0–1 | Marton-John | Open10 | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| Apr 5, 2024 | Fan | ½–½ | Marton-John | HUN Youth Ch. U10-18B U10-12G | Bishop's Opening: Vienna Hybrid, Spielmann Attack | |
| Apr 3, 2024 | Golya | 1–0 | Marton-John | HUN Youth Ch. U10-18B U10-12G | Italian Game: Giuoco Piano | |
| Apr 2, 2024 | Nagy | 1–0 | Marton-John | HUN Youth Ch. U10-18B U10-12G | Ruy Lopez: Morphy Defense, Steinitz Deferred | |
| Apr 1, 2024 | Marton-John | 1–0 | Kertesz | HUN Youth Ch. U10-18B U10-12G | Sicilian Defense: Kalashnikov Variation | |
| Sep 30, 2023 | Marton-John | 0–1 | Nakonechnyi | 22nd European Youth Blitz Championship 2023 - O-10 | Sicilian Defense: Dragon Variation, Yugoslav Attack, Panov Variation | |
| Sep 30, 2023 | Sason | 1–0 | Marton-John | 22nd European Youth Blitz Championship 2023 - O-10 | Zukertort Opening | |
| Oct 26, 2021 | Morovan-Szabo | 1–0 | Marton-John | HUN Youth tch | Sicilian Defense: Accelerated Dragon, Modern Variation | |
| Oct 25, 2021 | Marton-John | ½–½ | Torok | HUN Youth tch | Italian Game: Hungarian Defense | |
| Oct 25, 2021 | Morovan-Szabo | 1–0 | Marton-John | HUN Youth tch | Sicilian Defense: Accelerated Dragon, Modern Variation | |
| — | Marton-John | 0–1 | Kresz | Arpad-Hazi Jolan FIDE Tournament | Sicilian Defense: Kalashnikov Variation | |
| — | Fellegi | 1–0 | Marton-John | Arpad-Hazi Jolan FIDE Tournament | Ruy Lopez: Open | |
| — | Salamon | 1–0 | Marton-John | Arpad-Hazi Jolan FIDE Tournament | Italian Game: Classical Variation, Greco Gambit | |