| May 22, 2026 | Zhou | 1–0 | Petenyi | Round 1: Zhou, Jianchao - Petenyi, Tamas | Mexican Defense | |
| Apr 4, 2026 | Petenyi | 0–1 | Atwell | The Atlantic City Open | French Defense: Tarrasch Variation, Chistyakov Defense | |
| Feb 13, 2026 | Petenyi | 0–1 | Cordova | Round 2: Petenyi, Tamas - Cordova, Emilio | Sicilian Defense: Kan Variation, Wing Attack | |
| Feb 13, 2026 | Zhang | * | Petenyi | 17th Annual Southwest Class Tournament | ? | |
| Jul 20, 2025 | Petenyi | ½–½ | Patel | Round 8: Petenyi, Tamas - Patel, Maahir M | Ruy Lopez: Morphy Defense, Wormald Attack | |
| Jul 19, 2025 | Panda | 1–0 | Petenyi | Round 7: Panda, Vedic - Petenyi, Tamas | Queen's Pawn Game: Modern Defense | |
| Jul 19, 2025 | Petenyi | ½–½ | Gershenov | Round 6: Petenyi, Tamas - Gershenov, Ben | Sicilian Defense: Hyperaccelerated Dragon | |
| Jul 18, 2025 | Nasta | ½–½ | Petenyi | Round 5: Nasta, Kiren Vivek - Petenyi, Tamas | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Jul 18, 2025 | Petenyi | 0–1 | Song | Round 4: Petenyi, Tamas - Song, Michael | Ruy Lopez: Berlin Defense | |
| Jul 17, 2025 | Plat | ½–½ | Petenyi | Round 3: Plat, Vojtech - Petenyi, Tamas | Trompowsky Attack: Raptor Variation | |
| Jul 17, 2025 | Petenyi | 1–0 | Tadevosyan | Round 2: Petenyi, Tamas - Tadevosyan, Levon | Ruy Lopez: Morphy Defense, Wormald Attack | |
| Jun 15, 2025 | Berczes | ½–½ | Petenyi | Round 9: Berczes, David - Petenyi, Tamas | King's Indian Defense: Orthodox Variation | |
| Jun 15, 2025 | Petenyi | 1–0 | Trey | Round 8: Petenyi, Tamas - Trey, Justin | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jun 14, 2025 | Melillo | ½–½ | Petenyi | Round 7: Melillo, Lucius - Petenyi, Tamas | Pirc Defense | |
| Jun 14, 2025 | Petenyi | ½–½ | Komarov | Round 6: Petenyi, Tamas - Komarov, Dimitri | Petrov's Defense: Cozio Attack | |
| Jun 13, 2025 | Li | 1–0 | Petenyi | Round 4: Li, Rachael - Petenyi, Tamas | Sicilian Defense: Closed | |
| Jun 12, 2025 | Petenyi | 1–0 | Nguyen | Round 3: Petenyi, Tamas - Nguyen, James Le | Ruy Lopez: Morphy Defense, Wormald Attack | |
| Jun 12, 2025 | Lee | ½–½ | Petenyi | Round 2: Lee, Megan - Petenyi, Tamas | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Jun 12, 2025 | Petenyi | 1–0 | Keleberda | Round 1: Petenyi, Tamas - Keleberda, Tymur | Sicilian Defense: Najdorf Variation, English Attack | |
| Jun 12, 2025 | Petenyi | 1–0 | Widjaja | Round 5: Petenyi, Tamas - Widjaja, Luke | Ruy Lopez: Morphy Defense, Tarrasch Variation | |
| Apr 20, 2025 | Petenyi | ½–½ | Yang | Round 9: Petenyi, Tamas - Yang, Daniel | Sicilian Defense: Najdorf Variation, English Attack | |
| Apr 20, 2025 | Benen | ½–½ | Petenyi | Round 8: Benen, Samson - Petenyi, Tamas | Pirc Defense: Classical Variation, Quiet System, Czech Defense | |
| Apr 19, 2025 | Petenyi | 0–1 | Vinod | Round 7: Petenyi, Tamas - Vinod, Aarush | Sicilian Defense: Closed, Traditional | |
| Apr 19, 2025 | Matros | ½–½ | Petenyi | Round 6: Matros, Alexander - Petenyi, Tamas | King's Indian Defense: Normal Variation, Standard Development | |
| Apr 18, 2025 | Petenyi | 1–0 | Das | Round 4: Petenyi, Tamas - Das, Aditeya | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Apr 18, 2025 | Yang | 0–1 | Petenyi | Round 5: Yang, Qindong - Petenyi, Tamas | Modern Defense | |
| Apr 17, 2025 | Petenyi | 0–1 | Crump. Alexander J | Round 2: Petenyi, Tamas - Crump. Alexander J | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Apr 17, 2025 | Kaplan | 1–0 | Petenyi | Round 3: Kaplan, Avi Harrison - Petenyi, Tamas | Mexican Defense | |
| Apr 16, 2025 | Macovei | 1–0 | Petenyi | Round 1: Macovei, Andrei - Petenyi, Tamas | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Feb 17, 2025 | Petenyi | 0–1 | Zhu | Round 9: Petenyi, Tamas - Zhu, Linxi | Sicilian Defense: Najdorf Variation, English Attack | |
| Feb 17, 2025 | Bortnyk | ½–½ | Petenyi | Round 8: Bortnyk, Mykola - Petenyi, Tamas | Ruy Lopez: Closed, Martinez Variation | |
| Feb 16, 2025 | Petenyi | ½–½ | Omelja | Round 7: Petenyi, Tamas - Omelja, Artem | Ruy Lopez: Berlin Defense | |
| Feb 16, 2025 | Hoffman | ½–½ | Petenyi | Round 6: Hoffman, Luc - Petenyi, Tamas | Sicilian Defense: Closed | |
| Feb 15, 2025 | Petenyi | ½–½ | Dukic | Round 4: Petenyi, Tamas - Dukic, Zachary | Philidor Defense: Lion Variation | |
| Feb 15, 2025 | Marsh | 1–0 | Petenyi | Round 5: Marsh, James J - Petenyi, Tamas | King's Indian Defense: Orthodox Variation | |
| Feb 14, 2025 | Petenyi | 0–1 | Sun | Round 2: Petenyi, Tamas - Sun, Ryan | Ruy Lopez: Morphy Defense, Wormald Attack | |
| Feb 14, 2025 | Safranek | ½–½ | Petenyi | Round 3: Safranek, William - Petenyi, Tamas | Sicilian Defense: Closed, Traditional | |
| Feb 13, 2025 | Das | 0–1 | Petenyi | Round 1: Das, Aditeya - Petenyi, Tamas | King's Indian Defense: Normal Variation, Standard Development | |
| Jan 20, 2025 | Petenyi | ½–½ | Batsuren | Round 8: Petenyi, Tamas - Batsuren, Dambasuren | Ruy Lopez: Morphy Defense, Norwegian Variation | |
| Jan 20, 2025 | Gedajlovic | ½–½ | Petenyi | Round 9: Gedajlovic, Max - Petenyi, Tamas | King's Indian Defense: Makogonov Variation | |
| Jan 19, 2025 | Petenyi | 1–0 | Adewumi | Round 6: Petenyi, Tamas - Adewumi, Tanitoluwa | Sicilian Defense: French Variation, Normal | |
| Jan 19, 2025 | Barbosa | 1–0 | Petenyi | Round 7: Barbosa, Oliver - Petenyi, Tamas | Zukertort Opening: Kingside Fianchetto | |
| Jan 18, 2025 | Petenyi | ½–½ | Lin | Round 4: Petenyi, Tamas - Lin, Bryan Enming | Ruy Lopez: Closed, Morphy Attack | |
| Jan 18, 2025 | Paragua | 1–0 | Petenyi | Round 5: Paragua, Mark - Petenyi, Tamas | Sicilian Defense: Chekhover Variation | |
| Jan 17, 2025 | Petenyi | ½–½ | Narayanan | Round 3: Petenyi, Tamas - Narayanan, Samrug | Ruy Lopez: Morphy Defense, Tarrasch Variation | |
| Jan 17, 2025 | Levine | 1–0 | Petenyi | Round 2: Levine, Joseph - Petenyi, Tamas | Italian Game: Classical Variation, Greco Gambit, Traditional Line | |
| Jan 16, 2025 | Petenyi | ½–½ | Jacobson | Round 1: Petenyi, Tamas - Jacobson, Aaron | Ruy Lopez: Schliemann Defense | |
| Nov 11, 2024 | Petenyi | ½–½ | Amburgy | Round 8: Petenyi, Tamas - Amburgy, Ryan | Ruy Lopez: Morphy Defense, Wormald Attack | |
| Nov 11, 2024 | Chen | 1–0 | Petenyi | Round 9: Chen, Ryo - Petenyi, Tamas | Pirc Defense: Classical Variation, Quiet System, Czech Defense | |
| Nov 10, 2024 | Petenyi | 0–1 | Cordova | Round 6: Petenyi, Tamas - Cordova, Emilio | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Nov 10, 2024 | Stearman | ½–½ | Petenyi | Round 7: Stearman, Josiah - Petenyi, Tamas | Pirc Defense: Classical Variation, Quiet System, Czech Defense | |
| Nov 9, 2024 | Petenyi | ½–½ | Mendes Aaron Reeve | Round 4: Petenyi, Tamas - Mendes Aaron Reeve | Sicilian Defense: Najdorf Variation, Lipnitsky Attack | |
| Nov 9, 2024 | Budisavljevic | 1–0 | Petenyi | Round 5: Budisavljevic, Luka - Petenyi, Tamas | Benoni Defense: Old Benoni | |
| Nov 8, 2024 | Petenyi | 0–1 | Paragua | Round 2: Petenyi, Tamas - Paragua, Mark | Sicilian Defense: Najdorf Variation, English Attack | |
| Nov 8, 2024 | Adewumi | 1–0 | Petenyi | Round 3: Adewumi, Tanitoluwa - Petenyi, Tamas | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Nov 7, 2024 | Petenyi | 0–1 | Jacobson | Round 1: Petenyi, Tamas - Jacobson, Aaron | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Apr 5, 2022 | Palczert | 1–0 | Petenyi | European Championship | Modern Defense: Two Knights Variation, Suttles Variation | |
| Apr 4, 2022 | Petenyi | ½–½ | Blagojevic | European Individual Chess Championship | Ruy Lopez: Berlin Defense | |
| Apr 2, 2022 | Petenyi | 0–1 | Moiseenko | EICC 22 | Sicilian Defense: Old Sicilian | |
| Apr 2, 2022 | Hovhannisyan | ½–½ | Petenyi | EICC 22 | Sicilian Defense: Dragon Variation, Yugoslav Attack, Modern Line | |
| Mar 29, 2022 | Petenyi | ½–½ | Mchedlishvili | European Individual Chess Championship 2022 | Sicilian Defense: Najdorf Variation, English Attack | |
| Mar 28, 2022 | Stevic | 0–1 | Petenyi | EICC 22 | Pirc Defense: Classical Variation | |
| Nov 21, 2021 | Georgiadis | 1–0 | Petenyi | 23rd European Team Chess Championship 2021 - Open | Ruy Lopez: Cozio Defense | |
| Nov 20, 2021 | Brilej | ½–½ | Petenyi | 23rd European Team Chess Championship 2021 - Open | Caro-Kann Defense | |
| Nov 18, 2021 | Hauge | 1–0 | Petenyi | 23rd European Team Chess Championship 2021 - Open | Sicilian Defense: Kan Variation, Knight Variation | |
| Nov 16, 2021 | Petenyi | ½–½ | Howell | 23rd European Team Chess Championship 2021 - Open | Caro-Kann Defense: Advance Variation | |
| Nov 14, 2021 | Bjerre | 1–0 | Petenyi | 23rd European Team Chess Championship 2021 - Open | Nimzowitsch Defense: Williams Variation | |
| Nov 13, 2021 | Makolli | 0–1 | Petenyi | 23rd European Team Chess Championship 2021 - Open | Modern Defense: Standard Defense | |
| Nov 12, 2021 | Petenyi | ½–½ | Bluebaum | 23rd European Team Chess Championship 2021 - Open | French Defense: Tarrasch Variation, Chistyakov Defense | |
| Sep 3, 2021 | Paravyan | 1–0 | Petenyi | European Individual Championship - Reykjavik Open 2021 | Modern Defense | |
| Sep 2, 2021 | Petenyi | 1–0 | Gueci | European Individual Chess Championship 2021 - Reykjavik Open | Bishop's Opening: Vienna Hybrid | |
| Sep 1, 2021 | Svane | 1–0 | Petenyi | European Individual Chess Championship 2021 - Reykjavik Open | Italian Game: Classical Variation, La Bourdonnais Variation | |
| Aug 31, 2021 | Petenyi | ½–½ | Can | European Individual Chess Championship 2021 - Reykjavik Open | Sicilian Defense: Najdorf Variation, English Attack | |
| Aug 30, 2021 | Vedder | 0–1 | Petenyi | European Individual Chess Championship 2021 - Reykjavik Open | Modern Defense: Averbakh System | |
| Aug 29, 2021 | Petenyi | 0–1 | Fridman | European Individual Chess Championship 2021 - Reykjavik Open | Zukertort Opening: Reversed Grünfeld | |
| Aug 28, 2021 | Player | 0–1 | Petenyi | European Individual Chess Championship 2021 - Reykjavik Open | Modern Defense | |
| Aug 27, 2021 | Petenyi | 0–1 | Gretarsson | European Individual Chess Championship 2021 - Reykjavik Open | Sicilian Defense: Closed, Traditional | |
| Aug 26, 2021 | Moller | 0–1 | Petenyi | European Individual Chess Championship 2021 - Reykjavik Open | Pirc Defense: Classical Variation, Schlechter Variation | |
| May 31, 2021 | Petenyi | 0–1 | Mishra | Vezerkepzo GM May #2 | King's Indian Attack: Double Fianchetto | |
| May 30, 2021 | Farago | ½–½ | Petenyi | Vezerkepzo GM May #2 | Modern Defense: Averbakh System | |
| May 28, 2021 | Varga | ½–½ | Petenyi | Vezerkepzo GM May #2 | King's Indian Defense: Fianchetto Variation, Panno Variation | |
| May 27, 2021 | Petenyi | 1–0 | Gombocz | Vezerkepzo GM May #2 | Ruy Lopez: Fianchetto Defense | |
| May 26, 2021 | Manish Anto Cristiano F | 0–1 | Petenyi | Vezerkepzo GM May #2 | Modern Defense: Standard Line | |
| May 25, 2021 | Petenyi | 1–0 | Borhy | Vezerkepzo GM May #2 | English Opening: Agincourt Defense, Catalan Defense Accepted | |
| May 24, 2021 | Shahil Dey | * | Petenyi | Vezerkepzo GM May #2 | Nimzowitsch Defense: Mikenas Variation | |
| May 23, 2021 | Petenyi | ½–½ | Csiki | Vezerkepzo GM May #2 | Ruy Lopez: Morphy Defense, Wormald Attack | |
| May 22, 2021 | Nagy | ½–½ | Petenyi | Vezerkepzo GM May #2 | East Indian Defense | |
| May 16, 2021 | Petenyi | 0–1 | Pechac | Slovak Online World Cup Qualifier | Ruy Lopez: Berlin Defense | |
| May 16, 2021 | Nayhebaver | 1–0 | Petenyi | Slovak Online World Cup Qualifier | Modern Defense: Pseudo-Austrian Attack | |
| May 16, 2021 | Gazik | 1–0 | Petenyi | Slovak Online World Cup Qualifier | Modern Defense: Standard Line | |
| May 15, 2021 | Petenyi | ½–½ | Markos | Slovak Online World Cup Qualifier | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| May 15, 2021 | Petenyi | ½–½ | Ftacnik | Slovak Online World Cup Qualifier | Pirc Defense | |
| May 15, 2021 | Druska | 0–1 | Petenyi | Slovak Online World Cup Qualifier | English Opening | |
| — | Petenyi | 1–0 | Loukopoulos | European Individual Chess Championship | French Defense: Tarrasch Variation, Guimard Defense, Main Line | |
| — | Petenyi | ½–½ | Alonso Rosell | EICC 22 | Caro-Kann Defense | |
| — | Petenyi | 0–1 | Saraci | European Individual Chess Championship | Sicilian Defense: Snyder Variation | |
| — | Petenyi | ½–½ | Escalante Ramirez | 12th Annual Washington International - Championship | Ruy Lopez: Schliemann Defense | |
| — | Petenyi | 0–1 | Pyrih | 12th Annual Washington International - Championship | Sicilian Defense: Old Sicilian | |
| — | Abasov | 1–0 | Petenyi | European Individual Championship - Reykjavik Open 2021 | Modern Defense: Standard Defense | |
| — | Aizenberg | 1–0 | Petenyi | European Individual Chess Championship | Nimzowitsch Defense: Mikenas Variation | |