| Feb 28, 2026 | Stalmach | 1–0 | Mametev | PICF 2026 - KAREL JANECEK Open | King's Indian Defense: Semi-Averbakh System | |
| Nov 22, 2025 | Mametev | 0–1 | Novotny | Polofinale MCR junioru 2025 | Sicilian Defense: Classical Variation, Anti-Sozin Variation | |
| Nov 21, 2025 | Andrle | ½–½ | Mametev | Polofinale MCR junioru 2025 | Sicilian Defense: Najdorf Variation, English Attack | |
| Nov 20, 2025 | Mametev | 0–1 | Janous | Polofinale MCR junioru 2025 | Van't Kruijs Opening | |
| Nov 19, 2025 | Svadlenka | ½–½ | Mametev | Polofinale MCR junioru 2025 | King's Indian Defense: Orthodox Variation | |
| Nov 18, 2025 | Mametev | ½–½ | Hladky | Polofinale MCR junioru 2025 | French Defense: Tarrasch Variation | |
| Nov 18, 2025 | Hrbek | 0–1 | Mametev | Polofinale MCR junioru 2025 | King's Indian Defense: Semi-Averbakh System | |
| Nov 17, 2025 | Mametev | ½–½ | Juhanak | Polofinale MCR junioru 2025 | Caro-Kann Defense: Karpov Variation, Modern Variation | |
| Nov 16, 2025 | Mametev | 1–0 | Pokorny | Polofinale MCR junioru 2025 | French Defense: Tarrasch Variation, Morozevich Variation | |
| Nov 16, 2025 | Mikolas | 0–1 | Mametev | Polofinale MCR junioru 2025 | Sicilian Defense: Moscow Variation, Sokolsky Variation | |
| Jul 31, 2025 | Mametev | 1–0 | Heinrich | CZECH OPEN 2025 - A - PARDUBICE OPEN - open grandmaster tournament | French Defense: Tarrasch Variation, Guimard Defense, Main Line | |
| Jul 30, 2025 | Kusa | ½–½ | Mametev | CZECH OPEN 2025 - A - PARDUBICE OPEN - open grandmaster tournament | King's Indian Defense: Orthodox Variation, Gligoric-Taimanov System | |
| Jul 25, 2025 | Mametev | 0–1 | Csonka | CZECH OPEN 2025 - A - PARDUBICE OPEN - open grandmaster tournament, part of the ACP world series | Caro-Kann Defense: Tartakower Variation | |
| Jul 20, 2025 | Suliborski | 1–0 | Mametev | Round 6: Suliborski, Jakub - Mametev, Artem | Sicilian Defense: Najdorf Variation, English Attack | |
| Jul 19, 2025 | Mametev | 0–1 | Soban | Round 4: Mametev, Artem - Soban, Jaroslav | Sicilian Defense: Four Knights Variation | |
| Jul 6, 2025 | Straka | 0–1 | Mametev | Round 9: Straka, Vojtech - Mametev, Artem | King's Indian Defense: Normal Variation, Rare Defenses | |
| Jul 5, 2025 | Mametev | 1–0 | Honcharov | Round 8: Mametev, Artem - Honcharov, Makar | Sicilian Defense: Chekhover Variation | |
| Jul 4, 2025 | Mametev | 1–0 | Palek | Round 7: Mametev, Artem - Palek, Miroslav | French Defense: Rubinstein Variation, Blackburne Defense | |
| Jul 2, 2025 | Langmajer | 1–0 | Mametev | Round 5: Langmajer, Jan - Mametev, Artem | Sicilian Defense: Boleslavsky Variation | |
| Jul 1, 2025 | Mametev | 0–1 | Pirklova | Round 4: Mametev, Artem - Pirklova, Hana | Ruy Lopez: Closed, Chigorin Defense, Panov System | |
| Jun 29, 2025 | Horak | 1–0 | Mametev | Round 3: Horak, Martin - Mametev, Artem | English Opening: Anglo-Indian Defense | |
| Jun 29, 2025 | Mametev | 1–0 | Pycha | Round 2: Mametev, Artem - Pycha, Patrik | Petrov's Defense: Three Knights Game | |
| Jun 28, 2025 | Hurtak | 0–1 | Mametev | Round 1: Hurtak, Otto - Mametev, Artem | King's Indian Defense: Semi-Averbakh System | |
| Jun 21, 2025 | Mametev | 1–0 | Paseka | Round 1: Mametev, Artem - Paseka, Matyas | Sicilian Defense: Sozin Attack, Flank Variation | |
| May 11, 2025 | Dome | ½–½ | Mametev | Round 9: Dome, Michal - Mametev, Artem | Torre Attack: Fianchetto Defense | |
| May 10, 2025 | Mametev | 0–1 | Kratochvil | Round 11: Mametev, Artem - Kratochvil, Josef | Sicilian Defense: Kan Variation, Modern Variation | |
| May 10, 2025 | Mrozowski | 1–0 | Mametev | Round 9: Mrozowski, Patryk - Mametev, Artem | Zukertort Opening: Nimzo-Larsen Variation | |
| May 10, 2025 | Mametev | 1–0 | Vojtek | Round 8: Mametev, Artem - Vojtek, Vladimir | Sicilian Defense: Najdorf Variation, Lipnitsky Attack | |
| May 10, 2025 | Mametev | 0–1 | Vanek | Round 6: Mametev, Artem - Vanek, Ladislav | Philidor Defense: Lion Variation | |
| May 7, 2025 | Hanl | 1–0 | Mametev | Round 4: Hanl, Frantisek - Mametev, Artem | Sicilian Defense: Boleslavsky Variation | |
| May 7, 2025 | Mametev | ½–½ | Babula | Round 3: Mametev, Artem - Babula, Matej | Ruy Lopez: Schliemann Defense | |
| May 6, 2025 | Mametev | 1–0 | Pesek | Round 1: Mametev, Artem - Pesek, Jan Antonin | French Defense: Tarrasch Variation | |
| May 6, 2025 | Steinbauer | 0–1 | Mametev | Round 2: Steinbauer, Sebastian - Mametev, Artem | Sicilian Defense: Smith-Morra Gambit Accepted, Classical Formation | |
| Feb 28, 2025 | Mametev | 0–1 | Ioannidis | PICF 2025 - KAREL JANEČEK Open | French Defense: Tarrasch Variation, Morozevich Variation | |
| Aug 20, 2024 | Mametev | ½–½ | Javornik | EYCC 2024 Blitz O18 | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Aug 20, 2024 | Mametev | 1–0 | Nareks | EYCC 2024 Blitz O18 | Pirc Defense | |
| Aug 20, 2024 | Mametev | 1–0 | Makay | EYCC 2024 Blitz O18 | Sicilian Defense: Kan Variation, Modern Variation | |
| Aug 20, 2024 | Mametev | 0–1 | Trushko | EYCC 2024 Blitz O18 | Caro-Kann Defense | |
| Aug 20, 2024 | Mametev | 1–0 | Chyzy | EYCC 2024 Blitz O18 | Alekhine Defense: Four Pawns Attack, Main Line | |
| Aug 20, 2024 | Mametev | 0–1 | Nedelcu | EYCC 2024 Blitz O18 | Sicilian Defense: Pin Variation, Koch Variation | |
| Aug 20, 2024 | Javornik | 1–0 | Mametev | EYCC 2024 Blitz O18 | King's Indian Attack: Symmetrical Defense | |
| Aug 20, 2024 | Nareks | ½–½ | Mametev | EYCC 2024 Blitz O18 | Sicilian Defense: Closed | |
| Aug 20, 2024 | Makay | 0–1 | Mametev | EYCC 2024 Blitz O18 | Sicilian Defense: Prins Variation | |
| Aug 20, 2024 | Trushko | 1–0 | Mametev | EYCC 2024 Blitz O18 | Trompowsky Attack | |
| Aug 20, 2024 | Chyzy | 1–0 | Mametev | EYCC 2024 Blitz O18 | Sicilian Defense: Chekhover Variation | |
| Aug 20, 2024 | Nedelcu | 1–0 | Mametev | EYCC 2024 Blitz O18 | King's Indian Defense: Normal Variation | |
| Aug 19, 2024 | Mametev | 0–1 | Skrbec | EYCC 2024 Blitz O18 | Caro-Kann Defense: Classical Variation, Lobron System | |
| Aug 19, 2024 | Skrbec | 1–0 | Mametev | EYCC 2024 Blitz O18 | King's Indian Defense: Fianchetto Variation, Classical Variation | |
| Aug 18, 2024 | Mametev | 0–1 | Stevik | EYCC 2024 Rapid O18 | French Defense: Tarrasch Variation, Open System, Euwe-Keres Line | |
| Aug 18, 2024 | Herega | ½–½ | Mametev | EYCC 2024 Rapid O18 | Catalan Opening: Open Defense, Classical Line | |
| Aug 17, 2024 | Mametev | 1–0 | Karolczuk | EYCC 2024 Rapid O18 | Sicilian Defense: Kan Variation, Polugaevsky Variation | |
| Aug 17, 2024 | Mametev | 0–1 | Sahakyan | EYCC 2024 Rapid O18 | Ruy Lopez: Open | |
| Aug 17, 2024 | Ribera Veganzones | 0–1 | Mametev | EYCC 2024 Rapid O18 | Sicilian Defense: Richter-Rauzer Variation | |
| Aug 17, 2024 | Fishchuk | 1–0 | Mametev | EYCC 2024 Rapid O18 | Van Geet Opening | |
| Jul 14, 2024 | Cerny | 1–0 | Mametev | Round 7: Cerny, Michal - Mametev, Artem | Sicilian Defense: Boleslavsky Variation | |
| Jul 13, 2024 | Mametev | ½–½ | Vyskocil | Round 4: Mametev, Artem - Vyskocil, Neklan | Sicilian Defense: Closed, Anti-Sveshnikov Variation, with d6 | |
| May 12, 2024 | Mametev | 1–0 | Kulig | Round 9: Mametev, Artem - Kulig, Pawel | Caro-Kann Defense: Tartakower Variation | |
| May 11, 2024 | Kasperek | 1–0 | Mametev | Round 8: Kasperek, Ryszard - Mametev, Artem | Sicilian Defense: Najdorf Variation, Adams Attack | |
| May 10, 2024 | Mametev | ½–½ | Vybiral | Round 7: Mametev, Artem - Vybiral, Zdenek | French Defense: Tarrasch Variation, Modern System | |
| May 10, 2024 | Buksa | 0–1 | Mametev | Round 6: Buksa, Jaromir - Mametev, Artem | Sicilian Defense: Najdorf Variation | |
| May 9, 2024 | Lang | 1–0 | Mametev | Round 5: Lang, Simon - Mametev, Artem | Caro-Kann Defense: Classical Variation, Lobron System | |
| May 9, 2024 | Mametev | ½–½ | Chkhaidze | Round 4: Mametev, Artem - Chkhaidze, Nikoloz | Sicilian Defense: Dragon Variation, Yugoslav Attack, Panov Variation | |
| May 8, 2024 | Mametev | 0–1 | Delgerdalai | Round 9: Mametev, Artem - Delgerdalai, Bayarjavkhlan | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| May 8, 2024 | Mametev | 0–1 | Mudrak | Round 7: Mametev, Artem - Mudrak, Josef | Pirc Defense | |
| May 8, 2024 | Mametev | 1–0 | Ondrusova | Round 3: Mametev, Artem - Ondrusova, Miroslava | Three Knights Opening | |
| May 7, 2024 | Slusarczyk | 0–1 | Mametev | Round 2: Slusarczyk, Anna - Mametev, Artem | Indian Defense: Knights Variation | |
| May 7, 2024 | Mametev | 1–0 | Stary | Round 1: Mametev, Artem - Stary, Simon | Sicilian Defense: Sozin Attack, Flank Variation | |
| Dec 30, 2024 | Mametev | ½–½ | Vojta | Round 10: Mametev, Artem - Vojta, Jakub | French Defense: Tarrasch Variation, Botvinnik Variation | |
| Dec 30, 2024 | Ocelak | 0–1 | Mametev | Round 9: Ocelak, Jakub - Mametev, Artem | Neo-Grünfeld Defense: Classical Variation, Polgar Variation | |
| Dec 30, 2024 | Nemec | 1–0 | Mametev | Round 11: Nemec, Jachym - Mametev, Artem | Queen's Pawn Game: Barry Attack | |
| Dec 29, 2024 | Mametev | 1–0 | Davidek | Round 5: Mametev, Artem - Davidek, Zdenek | Italian Game: Scotch Gambit, Anderssen Attack | |
| Dec 29, 2024 | Mametev | 0–1 | Babula | Round 7: Mametev, Artem - Babula, Vlastimil | Sicilian Defense: Classical Variation, Anti-Sozin Variation | |
| Dec 29, 2024 | Mametev | ½–½ | Mach | Round 8: Mametev, Artem - Mach, Petr | Italian Game: Scotch Gambit, Anderssen Attack | |
| Dec 29, 2024 | Janous | 1–0 | Mametev | Round 6: Janous, Marek - Mametev, Artem | Alekhine Defense: Modern Variation, Larsen Variation | |
| Dec 28, 2024 | Mametev | 1–0 | Bezdek | Round 1: Mametev, Artem - Bezdek, Tomas | French Defense: Rubinstein Variation, Blackburne Defense | |
| Dec 28, 2024 | Mametev | 0–1 | Svacina | Round 3: Mametev, Artem - Svacina, Tobias | Four Knights Game | |
| Dec 28, 2024 | Bokhnak | ½–½ | Mametev | Round 2: Bokhnak, Timofii - Mametev, Artem | Sicilian Defense: Moscow Variation, Main Line | |
| Dec 28, 2024 | Smolik | ½–½ | Mametev | Round 4: Smolik, Jachym - Mametev, Artem | Queen's Pawn Game | |
| Mar 18, 2023 | Mametev | 0–1 | Paseka | h16 | Sicilian Defense: Classical Variation, Anti-Sozin Variation | |
| Mar 17, 2023 | Mametev | 0–1 | Fizer | h16 | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Mar 16, 2023 | Hladky | 0–1 | Mametev | H16 | French Defense: Tarrasch Variation, Modern System | |
| Mar 15, 2023 | Mametev | 1–0 | Davidek | H16 | Ruy Lopez: Closed, Breyer Defense, Zaitsev Hybrid | |
| Mar 14, 2023 | Tesar | ½–½ | Mametev | H16 | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Mar 13, 2023 | Mametev | ½–½ | Vilimek | H16 | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Mar 13, 2023 | Tillmann | ½–½ | Mametev | H16 | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Mar 12, 2023 | Zezula | 0–1 | Mametev | H16 | Sicilian Defense: Moscow Variation, Sokolsky Variation | |
| Mar 11, 2023 | Mametev | 0–1 | Kubin | h16 | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Jul 9, 2021 | Hlavac | 1–0 | Mametev | České Budějovice Open | A | Sicilian Defense: Kalashnikov Variation | |
| Jul 8, 2021 | Mametev | 1–0 | Fiser | České Budějovice Open | A | Indian Defense | |
| Jul 6, 2021 | Mametev | 1–0 | Milovs | České Budějovice Open | A | French Defense: Tarrasch Variation, Closed Variation | |
| Jul 5, 2021 | Novak | 1–0 | Mametev | České Budějovice Open | A | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Jul 3, 2021 | Zauner | * | Mametev | České Budějovice Open | A | English Opening: Anglo-Indian Defense, Queen's Indian Formation | |
| Jul 2, 2021 | Mametev | 0–1 | Bombek | České Budějovice Open | A | French Defense: Exchange Variation | |
| Jul 1, 2021 | Karimi | 0–1 | Mametev | České Budějovice Open | A | Queen's Indian Accelerated | |
| — | Mametev | 0–1 | Zakin | CZECH OPEN 2025 - A - PARDUBICE OPEN - open grandmaster tournament | Sicilian Defense: Najdorf Variation, Lipnitsky Attack | |
| — | Frank | 1–0 | Mametev | CZECH OPEN 2025 - A - PARDUBICE OPEN - open grandmaster tournament | Sicilian Defense: Dragon Variation, Yugoslav Attack, Modern Line | |