| Sep 17, 2023 | Juraj Druska | ½–½ | Viktor Matviishen | Round 4: Juraj Druska - Viktor Matviishen | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Sep 17, 2023 | David Brodsky | 0–1 | Viktor Matviishen | Round 3: David Brodsky - Viktor Matviishen | Sicilian Defense: Najdorf Variation | |
| Sep 16, 2023 | Viktor Matviishen | 1–0 | Andrei Macovei | Round 2: Viktor Matviishen - Andrei Macovei | Bogo-Indian Defense: Retreat Variation | |
| Sep 16, 2023 | Viktor Matviishen | ½–½ | Tianqi Wang | Round 1: Viktor Matviishen - Tianqi Wang | Queen's Gambit Declined: Charousek Variation | |
| Sep 4, 2023 | Viktor Matviishen | 1–0 | Harshit Raja | Round 9: Viktor Matviishen - Harshit Raja | Nimzo-Indian Defense: Normal Variation, Botvinnik System | |
| Sep 4, 2023 | Jason Liang | 0–1 | Viktor Matviishen | Round 8: Jason Liang - Viktor Matviishen | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Sep 4, 2023 | Viktor Matviishen | ½–½ | Robby Kevlishvili | Round 7: Viktor Matviishen - Robby Kevlishvili | Slav Defense: Modern Line | |
| Sep 3, 2023 | Daniel Fernandez | 1–0 | Viktor Matviishen | Round 6: Daniel Fernandez - Viktor Matviishen | Sicilian Defense: Modern Variations | |
| Sep 3, 2023 | Viktor Matviishen | ½–½ | Nikolas Theodorou | Round 5: Viktor Matviishen - Nikolas Theodorou | King's Indian Defense: Normal Variation | |
| Sep 2, 2023 | Brian Escalante | 0–1 | Viktor Matviishen | Round 4: Brian Escalante - Viktor Matviishen | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Sep 2, 2023 | Viktor Matviishen | ½–½ | Gergely Kantor | Round 3: Viktor Matviishen - Gergely Kantor | Indian Defense: Normal Variation | |
| Sep 1, 2023 | Mark Heimann | 0–1 | Viktor Matviishen | Round 2: Mark Heimann - Viktor Matviishen | English Opening: Symmetrical Variation, Three Knights Variation | |
| Sep 1, 2023 | Viktor Matviishen | 1–0 | Abhinav Penagalapati | Round 1: Viktor Matviishen - Abhinav Penagalapati | Dutch Defense: Classical Variation | |
| Aug 6, 2023 | Viktor Matviishen | ½–½ | Rahul P Srivatshav | Round 9: Viktor Matviishen - Rahul P Srivatshav | Benoni Defense: Classical Variation | |
| Aug 5, 2023 | Viktor Matviishen | 1–0 | George Li | Round 8: Viktor Matviishen - George Li | Nimzo-Indian Defense: Normal Variation | |
| Aug 4, 2023 | Gregory Markzon | 0–1 | Viktor Matviishen | Round 7: Gregory Markzon - Viktor Matviishen | Sicilian Defense: Najdorf Variation, Zagreb Variation | |
| Jul 4, 2023 | Tanitoluwa Adewumi | 0–1 | Viktor Matviishen | 51st Annual World Open | Sicilian Defense: Moscow Variation | |
| Jul 3, 2023 | Viktor Matviishen | ½–½ | John Fedorowicz | 51st Annual World Open | Grünfeld Defense: Exchange Variation | |
| Jun 28, 2023 | Tuan Minh Le | ½–½ | Viktor Matviishen | 16th Annual Philadelphia International | Slav Defense: Quiet Variation, Schallopp Defense | |
| Jun 27, 2023 | Viktor Matviishen | 1–0 | Pablo Salinas Herrera | 16th Annual Philadelphia International International | Queen's Gambit Declined: Queen's Knight Variation | |
| Jun 27, 2023 | Djurabek Khamrakulov | ½–½ | Viktor Matviishen | 16th Annual Philadelphia International International | Sicilian Defense: Delayed Alapin Variation | |
| Jun 26, 2023 | Viktor Matviishen | ½–½ | Semen Khanin | 16th Annual Philadelphia International | Caro-Kann Defense: Exchange Variation | |
| Jun 26, 2023 | Dalton Perrine | 0–1 | Viktor Matviishen | 16th Annual Philadelphia International International | Zukertort Opening | |
| Jun 25, 2023 | Viktor Matviishen | ½–½ | Bilel Bellahcene | Round 1: Viktor Matviishen - Bilel Bellahcene | Nimzo-Indian Defense: Normal Variation, Botvinnik System | |
| Jun 25, 2023 | Sam Schmakel | ½–½ | Viktor Matviishen | 16th Annual Philadelphia International | Caro-Kann Defense: Endgame Offer | |
| Jun 24, 2023 | Viktor Matviishen | * | Sahil Sinha | 16th Annual Philadelphia International International | ? | |
| Jun 18, 2023 | Semen Khanin | ½–½ | Viktor Matviishen | Las Vegas National Open 2023 | Slav Defense: Quiet Variation, Schallopp Defense | |
| Jun 18, 2023 | Yaser Quesada | 1–0 | Viktor Matviishen | Las Vegas National Open 2023 | Caro-Kann Defense: Exchange Variation, Rubinstein Variation | |
| Jun 17, 2023 | Viktor Matviishen | 1–0 | Zaven Andriasian | Las Vegas National Open 2023 | Slav Defense: Quiet Variation, Pin Defense | |
| Jun 17, 2023 | Lucius Melillo | 0–1 | Viktor Matviishen | Las Vegas National Open 2023 | Queen's Indian Defense: Fianchetto Variation, Check Variation, Intermezzo Line | |
| Jun 17, 2023 | Viktor Matviishen | ½–½ | Vasif Durarbayli | Las Vegas National Open 2023 | Semi-Slav Defense: Stoltz Variation | |
| Jun 16, 2023 | Hans Niemann | ½–½ | Viktor Matviishen | Las Vegas National Open 2023 | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Jun 16, 2023 | Viktor Matviishen | 1–0 | Lucas Jiang | Las Vegas National Open 2023 | Grünfeld Defense: Exchange Variation | |
| Jun 15, 2023 | Rose Atwell | 0–1 | Viktor Matviishen | Las Vegas National Open 2023 | Caro-Kann Defense: Exchange Variation | |
| Jun 15, 2023 | Viktor Matviishen | 1–0 | Eugene Yanayt | Round 1: Viktor Matviishen - Eugene Yanayt | King's Indian Defense: Semi-Averbakh System | |
| Jun 11, 2023 | Viktor Matviishen | 0–1 | Toms Kantans | Round 9: Viktor Matviishen - Toms Kantans | Grünfeld Defense: Exchange Variation | |
| Jun 11, 2023 | Shawn Rodrigue-Lemieux | ½–½ | Viktor Matviishen | Round 8: Shawn Rodrigue-Lemieux - Viktor Matviishen | Four Knights Game: Scotch Variation Accepted | |
| Jun 10, 2023 | Viktor Matviishen | * | Razvan Preotu | Round 7: Viktor Matviishen - Razvan Preotu | French Defense: Tarrasch Variation, Open System, Euwe-Keres Line | |
| Jun 10, 2023 | Omar Almeida Quintana | 0–1 | Viktor Matviishen | Round 6: Omar Almeida Quintana - Viktor Matviishen | Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation, Nimzowitsch Attack | |
| Jun 9, 2023 | Viktor Matviishen | ½–½ | Thomas Roussel-Roozmon | Round 5: Viktor Matviishen - Thomas Roussel-Roozmon | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Jun 9, 2023 | Elshan Moradiabadi | ½–½ | Viktor Matviishen | Round 4: Elshan Moradiabadi - Viktor Matviishen | Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation | |
| Dec 30, 2022 | Viktor Matviishen | 0–1 | Jason Wang | Round 8 lcc: Viktor Matviishen - Jason Wang | Queen's Gambit Accepted: Old Variation | |
| Dec 30, 2022 | Joseph Levine | ½–½ | Viktor Matviishen | 32nd Annual North American Open | Sicilian Defense: Najdorf Variation | |
| Dec 29, 2022 | Jianchao Zhou | ½–½ | Viktor Matviishen | Round 7 lcc: Jianchao Zhou - Viktor Matviishen | Queen's Gambit Accepted: Classical Defense, Alekhine System | |
| Dec 29, 2022 | Viktor Matviishen | ½–½ | Mikhail Antipov | Round 6 lcc: Viktor Matviishen - Mikhail Antipov | English Opening: Adorjan Defense | |
| Dec 28, 2022 | Jason Liang | ½–½ | Viktor Matviishen | Round 5 lcc: Jason Liang - Viktor Matviishen | Italian Game: Classical Variation, Greco Gambit | |
| Dec 28, 2022 | Viktor Matviishen | 1–0 | Sandeep Sethuraman | Round 4 lcc: Viktor Matviishen - Sandeep Sethuraman | Semi-Slav Defense: Accelerated Meran Variation | |
| Dec 27, 2022 | Hanxiang Li | 0–1 | Viktor Matviishen | Round 3 lcc: Hanxiang Li - Viktor Matviishen | King's Indian Attack | |
| Dec 26, 2022 | Viktor Matviishen | 1–0 | Youhe Huang | 32nd Annual North American Open | Queen's Gambit Declined | |
| Dec 26, 2022 | Andrew Jiang | 0–1 | Viktor Matviishen | 32nd Annual North American Open | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Aug 17, 2022 | Evgeny Postny | * | Viktor Matviishen | Round 9: Evgeny Postny - Viktor Matviishen | English Opening: Symmetrical Variation, Three Knights Variation | |
| Aug 16, 2022 | Viktor Matviishen | 1–0 | Maili-Jade Ouellet | Round 8: Viktor Matviishen - Maili-Jade Ouellet | Bogo-Indian Defense: Retreat Variation | |
| Aug 16, 2022 | Aaron Grabinsky | 1–0 | Viktor Matviishen | Round 7: Aaron Grabinsky - Viktor Matviishen | Sicilian Defense: French Variation, Westerinen Attack | |
| Aug 15, 2022 | Viktor Matviishen | ½–½ | Olivier Chiku-Ratte | Round 6: Viktor Matviishen - Olivier Chiku-Ratte | Queen's Gambit Declined | |
| Aug 15, 2022 | John Michael Burke | 1–0 | Viktor Matviishen | Round 5: John Michael Burke - Viktor Matviishen | Sicilian Defense: Najdorf Variation, Main Line | |
| Aug 15, 2022 | Viktor Matviishen | 1–0 | Aaron Jacobson | Round 2: Viktor Matviishen - Aaron Jacobson | Catalan Opening: Open Defense, Classical Line | |
| Aug 15, 2022 | Davis Zong | 0–1 | Viktor Matviishen | Round 1: Davis Zong - Viktor Matviishen | Queen's Gambit Declined: Ragozin Defense, Vienna Variation | |
| Aug 15, 2022 | Viktor Matviishen | ½–½ | Andrew Tang | Round 4: Viktor Matviishen - Andrew Tang | Catalan Opening: Open Defense | |
| Aug 15, 2022 | Akshat Chandra | 0–1 | Viktor Matviishen | Round 3: Akshat Chandra - Viktor Matviishen | Queen's Gambit Accepted: Classical Defense, Main Line | |
| Aug 7, 2022 | Viktor Matviishen | 0–1 | Aleksey Sorokin | Round 15: Viktor Matviishen - Aleksey Sorokin | King's Indian Attack: Double Fianchetto | |
| Aug 7, 2022 | Elshan Moradiabadi | ½–½ | Viktor Matviishen | Round 14: Elshan Moradiabadi - Viktor Matviishen | Sicilian Defense: Najdorf Variation, Opocensky Variation, Traditional Line | |
| Aug 6, 2022 | Viktor Matviishen | 1–0 | Vladimir Akopian | Round 13: Viktor Matviishen - Vladimir Akopian | Benoni Defense | |
| Jul 24, 2022 | Aaron Grabinsky | ½–½ | Viktor Matviishen | Round 9: Aaron Grabinsky - Viktor Matviishen | Sicilian Defense: Moscow Variation | |
| Jul 24, 2022 | Viktor Matviishen | ½–½ | Max Gedajlovic | Round 8: Viktor Matviishen - Max Gedajlovic | Indian Defense: Dzindzi-Indian Defense | |
| Jul 23, 2022 | Rushaan Mahajan | 0–1 | Viktor Matviishen | Round 7: Rushaan Mahajan - Viktor Matviishen | King's Indian Attack: Yugoslav Variation | |
| Jul 23, 2022 | Viktor Matviishen | 1–0 | Ryo Chen | Round 6: Viktor Matviishen - Ryo Chen | Queen's Pawn Game: Torre Attack, Grünfeld Variation, Main Line | |
| Jul 22, 2022 | Richard Balsang Bitoon | 0–1 | Viktor Matviishen | Round 5: Richard Balsang Bitoon - Viktor Matviishen | Sicilian Defense: Najdorf Variation | |
| Jul 22, 2022 | Viktor Matviishen | ½–½ | Eduard Hakobyan | Round 4: Viktor Matviishen - Eduard Hakobyan | Benoni Defense: Classical Variation, Czerniak Defense | |
| Jul 21, 2022 | Sungho Yim | 0–1 | Viktor Matviishen | Round 3: Sungho Yim - Viktor Matviishen | Queen's Gambit Declined: Ragozin Defense | |
| Jul 21, 2022 | Viktor Matviishen | ½–½ | Milind Maiti | Round 2: Viktor Matviishen - Milind Maiti | Catalan Opening: Open Defense | |
| Jul 21, 2022 | Kevin Fong | 0–1 | Viktor Matviishen | Round 1: Kevin Fong - Viktor Matviishen | Sicilian Defense: Moscow Variation | |
| Jun 28, 2022 | Viktor Matviishen | ½–½ | Maximillian Lu | Round 9: Viktor Matviishen - Maximillian Lu | Queen's Indian Defense: Kasparov-Petrosian Variation, Marco Defense | |
| Jun 28, 2022 | Jianchao Zhou | 0–1 | Viktor Matviishen | Round 8: Jianchao Zhou - Viktor Matviishen | English Opening: Anglo-Indian Defense | |
| Aug 6, 2021 | Viktor Matviishen | 1–0 | Joseph Mucerino | Round 6 6-day: Viktor Matviishen - Joseph Mucerino | Queen's Gambit Declined | |
| Aug 5, 2021 | Glashausser Sho | 1–0 | Viktor Matviishen | Round 3 6-day: Glashausser Sho - Viktor Matviishen | Semi-Slav Defense | |
| Jun 20, 2021 | Viktor Matviishen | 0–1 | Joshua Posthuma | Round 9: Viktor Matviishen - Joshua Posthuma | Queen's Indian Accelerated | |
| Jun 20, 2021 | Erik Santarius | 0–1 | Viktor Matviishen | Round 8: Erik Santarius - Viktor Matviishen | Queen's Pawn Game: Colle System | |
| Jun 19, 2021 | Viktor Matviishen | 0–1 | Nikolas Theodorou | Round 7: Viktor Matviishen - Nikolas Theodorou | King's Indian Defense: Makogonov Variation | |
| Jun 19, 2021 | Illya Nyzhnyk | 1–0 | Viktor Matviishen | Round 6: Illya Nyzhnyk - Viktor Matviishen | Slav Defense: Exchange Variation | |
| Jun 19, 2021 | Viktor Matviishen | ½–½ | Aram Hakobyan | Round 5: Viktor Matviishen - Aram Hakobyan | Grünfeld Defense: Exchange Variation, Modern Exchange Variation | |
| Jun 18, 2021 | Gregory Kaidanov | 0–1 | Viktor Matviishen | Round 4: Gregory Kaidanov - Viktor Matviishen | Semi-Slav Defense: Normal Variation | |
| Jun 18, 2021 | Viktor Matviishen | 1–0 | Sriram Krishnakumar | Round 3: Viktor Matviishen - Sriram Krishnakumar | Semi-Slav Defense: Stoltz Variation | |
| Jun 17, 2021 | Eric Li | 0–1 | Viktor Matviishen | Round 2: Eric Li - Viktor Matviishen | King's Indian Defense: Normal Variation, Rare Defenses | |