| Jun 30, 2026 | Matviishen | 1–0 | Jagirapu | Round 9: Matviishen, Viktor - Jagirapu, Harshin Reddy | Semi-Slav Defense: Moscow Variation | |
| Jun 29, 2026 | Karthik Venkataraman | ½–½ | Matviishen | Round 8: Karthik Venkataraman - Matviishen, Viktor | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Jun 28, 2026 | Matviishen | ½–½ | Hilby | Round 7: Matviishen, Viktor - Hilby, Craig | Tarrasch Defense: Dubov Tarrasch | |
| Jun 27, 2026 | Lin | 0–1 | Matviishen | Round 5: Lin, Bryan Enming - Matviishen, Viktor | Ruy Lopez: Morphy Defense, Neo-Arkhangelsk Variation | |
| Jun 27, 2026 | Matviishen | 1–0 | Willy | Round 4: Matviishen, Viktor - Willy, Stephen | English Defense | |
| Jun 26, 2026 | Zhuang | ½–½ | Matviishen | Round 3: Zhuang, Kyle - Matviishen, Viktor | King's Indian Attack: Spassky Variation | |
| Jun 26, 2026 | Matviishen | 1–0 | Y Luke Ji | Round 2: Matviishen, Viktor - Y Luke Ji | Nimzo-Indian Defense: Sämisch Variation | |
| Jun 25, 2026 | Vaibhav Robinjith Kalpaka | ½–½ | Matviishen | Round 1: Vaibhav Robinjith Kalpaka - Matviishen, Viktor | Zukertort Opening | |
| Jun 25, 2026 | Corrales Jimenez | 0–1 | Matviishen | Round 6: Corrales Jimenez, Fidel - Matviishen, Viktor | Scotch Game | |
| May 25, 2026 | Sarana | ½–½ | Matviishen | Round 9: Sarana, Alexey - Matviishen, Viktor | Queen's Gambit Declined: Tartakower Defense | |
| May 25, 2026 | Matviishen | 1–0 | Wang | Round 8: Matviishen, Viktor - Wang, Tianqi | Nimzo-Indian Defense: Sämisch Variation | |
| May 24, 2026 | Matviishen | ½–½ | Luger | Round 7: Matviishen, Viktor - Luger, Sam | Nimzo-Indian Defense: Sämisch Variation | |
| May 24, 2026 | Shoker | 0–1 | Matviishen | Round 6: Shoker, Samy - Matviishen, Viktor | King's Indian Attack: Spassky Variation | |
| May 23, 2026 | Siddharth Singh | 0–1 | Matviishen | Round 5: Siddharth Singh - Matviishen, Viktor | Trompowsky Attack | |
| May 23, 2026 | Matviishen | 0–1 | Liang | Round 4: Matviishen, Viktor - Liang, Awonder | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| May 22, 2026 | Matviishen | 1–0 | Lin | Round 3: Matviishen, Viktor - Lin, Dachey | King's Indian Defense: Semi-Averbakh System | |
| May 22, 2026 | Jiang | 0–1 | Matviishen | Round 2: Jiang, Brandon - Matviishen, Viktor | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| May 22, 2026 | Matviishen | 1–0 | Logan Shafer | Round 1: Matviishen, Viktor - Logan Shafer | Nimzo-Indian Defense: Normal Variation, Gligoric System, Exchange Variation | |
| Mar 22, 2026 | Matviishen | ½–½ | Lu | Round 9: Matviishen, Viktor - Lu, Maximillian | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Mar 22, 2026 | Atwell | 0–1 | Matviishen | Round 8: Atwell, Rose - Matviishen, Viktor | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Mar 21, 2026 | Matviishen | 1–0 | Preotu | Round 6: Matviishen, Viktor - Preotu, Razvan | Nimzo-Indian Defense: St. Petersburg Variation, Fischer Variation | |
| Mar 20, 2026 | Jing | 0–1 | Matviishen | Round 5: Jing, Andrew - Matviishen, Viktor | Queen's Pawn Game: London System | |
| Mar 20, 2026 | Matviishen | 1–0 | Guo | Round 4: Matviishen, Viktor - Guo, Ethan | Nimzo-Indian Defense: Normal Variation, Gligoric System, Exchange Variation | |
| Mar 19, 2026 | Delgado Ramirez | ½–½ | Matviishen | Round 3: Delgado Ramirez, Neuris - Matviishen, Viktor | Four Knights Game: Spanish Variation, Nimzowitsch Variation | |
| Mar 19, 2026 | Matviishen | 1–0 | Padhya Saumil | Round 2: Matviishen, Viktor - Padhya Saumil | Benoni Defense: Classical Variation, New York Variation | |
| Mar 18, 2026 | Melillo | 0–1 | Matviishen | Round 1: Melillo, Lucius - Matviishen, Viktor | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Mar 15, 2026 | Zhu | 0–1 | Matviishen | Round 7: Zhu, Linxi - Matviishen, Viktor | Ruy Lopez: Closed, Flohr System | |
| Mar 2, 2026 | Fier | 0–1 | Matviishen | American Cup Blitz | Queen's Gambit Declined: Orthodox Defense, Rubinstein Variation | |
| Mar 2, 2026 | Matviishen | 0–1 | Pranav | American Cup Blitz | Nimzo-Indian Defense: Rubinstein System, Taimanov Variation | |
| Mar 2, 2026 | Matviishen | 1–0 | Akobian | American Cup Blitz | Dutch Defense: Rubinstein Variation | |
| Mar 2, 2026 | Aronian | 1–0 | Matviishen | American Cup Blitz | King's Pawn Game: Leonardis Variation | |
| Mar 2, 2026 | Matviishen | 1–0 | Mikaelyan | American Cup Blitz | King's Indian Defense: Semi-Averbakh System | |
| Mar 2, 2026 | Tang | 0–1 | Matviishen | American Cup Blitz | Indian Defense: London System | |
| Mar 2, 2026 | Matviishen | 0–1 | Bok | American Cup Blitz | Nimzo-Indian Defense: Normal Variation, Schlechter Defense | |
| Mar 2, 2026 | Hong | ½–½ | Matviishen | American Cup Blitz | Rapport-Jobava System | |
| Mar 2, 2026 | Matviishen | 1–0 | Antova | American Cup Blitz | Nimzo-Indian Defense: St. Petersburg Variation | |
| Mar 1, 2026 | Mikaelyan | ½–½ | Matviishen | Saint Louis Masters | Queen's Gambit Declined: Harrwitz Attack | |
| Feb 28, 2026 | Matviishen | 0–1 | Adewumi | Saint Louis Masters | Queen's Gambit Accepted: Classical Defense, Steinitz Variation, Exchange Variation | |
| Feb 28, 2026 | Sonis | ½–½ | Matviishen | Saint Louis Masters | Ruy Lopez: Closed, Breyer Defense, Zaitsev Hybrid | |
| Feb 27, 2026 | Matviishen | ½–½ | Pranav | Saint Louis Masters | Nimzo-Indian Defense: Normal Variation, Gligoric System | |
| Feb 27, 2026 | Yu | 0–1 | Matviishen | Saint Louis Masters | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Feb 26, 2026 | Matviishen | 1–0 | Atwell | Saint Louis Masters | Queen's Gambit Declined: Charousek Variation | |
| Feb 26, 2026 | Pyrih | ½–½ | Matviishen | Saint Louis Masters | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Feb 25, 2026 | Matviishen | 0–1 | Bharath Subramaniyam H | Saint Louis Masters | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Feb 25, 2026 | Kavutskiy | 0–1 | Matviishen | Saint Louis Masters | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Feb 16, 2026 | Matviishen | 0–1 | Vladimir Belous | Round 9: Matviishen, Viktor - Vladimir Belous | King's Indian Defense: Semi-Averbakh System | |
| Feb 16, 2026 | Padhya Saumil | 0–1 | Matviishen | Round 8: Padhya Saumil - Matviishen, Viktor | Scotch Game: Mieses Variation | |
| Feb 15, 2026 | Matviishen | 1–0 | Melillo | 17th Annual Southwest Class Tournament | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Feb 14, 2026 | Guo | 1–0 | Matviishen | Round 4: Guo, Ethan - Matviishen, Viktor | Sicilian Defense: Najdorf Variation | |
| Feb 13, 2026 | Uz | 0–1 | Matviishen | Round 2: Uz, Kagan - Matviishen, Viktor | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Feb 13, 2026 | Matviishen | 1–0 | Gongora Montes | Round 1: Matviishen, Viktor - Gongora Montes, Benjamin | Semi-Slav Defense: Marshall Gambit | |
| Feb 12, 2026 | Matviishen | ½–½ | Vivekananthan | Round 3: Matviishen, Viktor - Vivekananthan, Anish | Grünfeld Defense: Exchange Variation | |
| Jan 19, 2026 | Griffith | ½–½ | Matviishen | Round 8: Griffith, Kyron - Matviishen, Viktor | Four Knights Game: Scotch Variation Accepted | |
| Jan 18, 2026 | Matviishen | ½–½ | Narayanan | Round 7: Matviishen, Viktor - Narayanan, Samrug | Nimzo-Indian Defense: Normal Variation, Schlechter Defense | |
| Jan 18, 2026 | Tanenbaum | ½–½ | Matviishen | Round 6: Tanenbaum, Zachary - Matviishen, Viktor | Sicilian Defense: Najdorf Variation, English Attack | |
| Jan 17, 2026 | Matviishen | 1–0 | Adewumi | Round 5: Matviishen, Viktor - Adewumi, Tanitoluwa | Old Indian Defense: Normal Variation | |
| Jan 17, 2026 | Guo | 0–1 | Matviishen | Round 4: Guo, Ethan - Matviishen, Viktor | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jan 16, 2026 | Matviishen | ½–½ | Mirzoev | Round 3: Matviishen, Viktor - Mirzoev, Azer | Ruy Lopez: Open Berlin Defense, l'Hermet Variation | |
| Jan 15, 2026 | Stremavicius | ½–½ | Matviishen | Round 2: Stremavicius, Titas - Matviishen, Viktor | Indian Defense: Knights Variation | |
| Jan 14, 2026 | Matviishen | ½–½ | Lu | Round 1: Matviishen, Viktor - Lu, Maximillian | Nimzo-Indian Defense: Normal Variation, Botvinnik System | |
| Jan 14, 2026 | Matviishen | ½–½ | Ozenir | Round 9: Matviishen, Viktor - Ozenir, Ekin Baris | Nimzo-Indian Defense: Normal Variation, Schlechter Defense | |
| Jan 5, 2026 | Ouellet | 0–1 | Matviishen | Round 6: Ouellet, Maili-Jade - Matviishen, Viktor | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Jan 4, 2026 | Matviishen | ½–½ | Tari | Round 5: Matviishen, Viktor - Tari, Aryan | Nimzo-Indian Defense: Normal Variation, Gligoric System, Exchange Variation | |
| Jan 4, 2026 | Matviishen | 1–0 | Shlyakhtenko | Round 4: Matviishen, Viktor - Shlyakhtenko, Robert | Queen's Gambit Accepted: Furman Variation | |
| Jan 3, 2026 | Dudin | 1–0 | Matviishen | Round 3: Dudin, Gleb - Matviishen, Viktor | Four Knights Game: Spanish Variation | |
| Dec 18, 2025 | Matviishen | 1–0 | Martinez Duany | Round 8: Matviishen, Viktor - Martinez Duany, Lelys Stanley | King's Indian Defense: Orthodox Variation, Positional Defense | |
| Dec 18, 2025 | Quesada Perez | ½–½ | Matviishen | Round 7: Quesada Perez, Luis Ernesto - Matviishen, Viktor | Slav Defense: Modern Line | |
| Dec 17, 2025 | Matviishen | ½–½ | Berdayes Ason | Round 6: Matviishen, Viktor - Berdayes Ason, Dylan Isidro | Nimzo-Indian Defense: Normal Variation, Gligoric System, Exchange Variation | |
| Dec 17, 2025 | Ruiz Castillo | ½–½ | Matviishen | Round 5: Ruiz Castillo, Joshua Daniel - Matviishen, Viktor | English Opening: Agincourt Defense | |
| Dec 16, 2025 | Matviishen | 1–0 | Ostrovskiy | Round 4: Matviishen, Viktor - Ostrovskiy, Aleksandr | Queen's Gambit Accepted: Janowski-Larsen Variation | |
| Dec 16, 2025 | Morales Viscaya | 0–1 | Matviishen | Round 3: Morales Viscaya, Joel Artemio - Matviishen, Viktor | Torre Attack: Classical Defense, Nimzowitsch Variation | |
| Dec 15, 2025 | Matviishen | 1–0 | Obregon Garcia | Round 2: Matviishen, Viktor - Obregon Garcia, Roxangel | Nimzo-Indian Defense: Normal Variation, Botvinnik System | |
| Dec 15, 2025 | Luna Javier | ½–½ | Matviishen | Round 1: Luna Javier, Edgar Froylan - Matviishen, Viktor | Pseudo Queen's Indian Defense | |
| Dec 5, 2025 | Matviishen | 0–1 | Cori | Round 9: Matviishen, Viktor - Cori, Jorge | Grünfeld Defense: Three Knights Variation, Hungarian Variation | |
| Nov 25, 2025 | Kunka | ½–½ | Matviishen | Round 9: Kunka, Harshid - Matviishen, Viktor | Ruy Lopez: Closed | |
| Nov 24, 2025 | Matviishen | 1–0 | Atwell | Round 8: Matviishen, Viktor - Atwell, Rose | Nimzo-Indian Defense: Sämisch Variation | |
| Nov 23, 2025 | Chirilov | ½–½ | Matviishen | Round 6: Chirilov, James A - Matviishen, Viktor | Four Knights Game: Scotch Variation Accepted | |
| Nov 23, 2025 | Matviishen | 0–1 | Zhu | Round 5: Matviishen, Viktor - Zhu, Linxi | Sicilian Defense: Moscow Variation | |
| Nov 22, 2025 | Ringoir | ½–½ | Matviishen | Round 4: Ringoir, Tanguy - Matviishen, Viktor | Bogo-Indian Defense: Retreat Variation | |
| Nov 22, 2025 | Matviishen | 1–0 | Hebbar | Round 3: Matviishen, Viktor - Hebbar, Eshaan | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Nov 21, 2025 | Sai Krishna G V | ½–½ | Matviishen | Round 2: Sai Krishna G V - Matviishen, Viktor | Ruy Lopez: Closed | |
| Nov 21, 2025 | Matviishen | ½–½ | Gauri | Round 1: Matviishen, Viktor - Gauri, Shankar | Nimzo-Indian Defense: Normal Variation, Classical Defense | |
| Nov 19, 2025 | Matviishen | ½–½ | Budisavljevic | Round 7: Matviishen, Viktor - Budisavljevic, Luka | Nimzo-Indian Defense: Normal Variation, Classical Defense | |
| Jul 12, 2025 | Griffith | ½–½ | Matviishen | Round 8: Griffith, Kyron - Matviishen, Viktor | Four Knights Game: Scotch Variation Accepted | |
| Jul 12, 2025 | Matviishen | ½–½ | Tian | Round 7: Matviishen, Viktor - Tian, Eddy | Caro-Kann Defense: Exchange Variation | |
| Jul 11, 2025 | Torres Rosas | ½–½ | Matviishen | Round 6: Torres Rosas, Luis Carlos - Matviishen, Viktor | Nimzo-Indian Defense: Normal Variation, Gligoric System, Exchange Variation | |
| Jul 10, 2025 | Matviishen | ½–½ | Putnam | Round 5: Matviishen, Viktor - Putnam, Liam | Sicilian Defense: Four Knights Variation | |
| Jul 10, 2025 | Zeltsan | ½–½ | Matviishen | Round 4: Zeltsan, Joseph - Matviishen, Viktor | Ruy Lopez: Morphy Defense | |
| Jul 10, 2025 | Matviishen | ½–½ | Kevlishvili | Round 1: Matviishen, Viktor - Kevlishvili, Robby | Slav Defense: Exchange Variation | |
| Jul 9, 2025 | Matviishen | ½–½ | Narayanan | Round 3: Matviishen, Viktor - Narayanan, Samrug | Italian Game: Giuoco Piano | |
| Jul 9, 2025 | Cordova | ½–½ | Matviishen | Round 2: Cordova, Emilio - Matviishen, Viktor | Queen's Gambit Declined: Three Knights Variation | |
| Jul 7, 2025 | Matviishen | ½–½ | Posthuma | Round 9: Matviishen, Viktor - Posthuma, Joshua | Caro-Kann Defense: Exchange Variation | |
| Jul 6, 2025 | Cardoso Cardoso | ½–½ | Matviishen | Round 9: Cardoso Cardoso, Jose Gabriel - Matviishen, Viktor | Ruy Lopez: Closed, Anti-Marshall | |
| Jul 6, 2025 | Matviishen | 1–0 | Poliannikov | 53rd Annual World Open Chess Tournament | Benoni Defense | |
| Jul 5, 2025 | Matviishen | ½–½ | Ehsan Ghaemmaghami | Round 6: Matviishen, Viktor - Ehsan Ghaemmaghami | Nimzo-Indian Defense: Rubinstein System | |
| Jul 5, 2025 | Xiong | 1–0 | Matviishen | Round 5: Xiong, Jeffery - Matviishen, Viktor | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jul 4, 2025 | Matviishen | 1–0 | Adewumi | Round 4: Matviishen, Viktor - Adewumi, Tanitoluwa | Nimzo-Indian Defense: Normal Variation | |
| Jul 3, 2025 | Kevin George Micheal | 0–1 | Matviishen | Round 3: Kevin George Micheal - Matviishen, Viktor | Four Knights Game: Italian Variation | |
| Jul 3, 2025 | Matviishen | * | Proleiko | 53rd Annual World Open Chess Tournament | ? | |
| Apr 27, 2025 | Matviishen | ½–½ | Ghazarian | Round 9: Matviishen, Viktor - Ghazarian, Kirk | Nimzo-Indian Defense: Normal Variation | |