| May 9, 2026 | Onyshchuk | 1–0 | Materia | Luc Winants Memorial Rapid Chess Tournament 2026 | King's Indian Attack, with e6 | |
| May 9, 2026 | Sokolov | ½–½ | Onyshchuk | Luc Winants Memorial Rapid Chess Tournament 2026 | Pirc Defense | |
| May 9, 2026 | Onyshchuk | ½–½ | Short | Luc Winants Memorial Rapid Chess Tournament 2026 | King's Indian Attack | |
| May 9, 2026 | Tregubov | 0–1 | Onyshchuk | Luc Winants Memorial Rapid Chess Tournament 2026 | Pirc Defense: Classical Variation, Quiet System | |
| May 9, 2026 | Roebers | 0–1 | Onyshchuk | Luc Winants Memorial Rapid Chess Tournament 2026 | Pirc Defense: Austrian Attack | |
| May 9, 2026 | Onyshchuk | ½–½ | Chasin | Luc Winants Memorial Rapid Chess Tournament 2026 | King's Indian Attack: Wahls Defense | |
| May 7, 2026 | Onyshchuk | ½–½ | Solodovnichenko | Luc Winants Memorial Rapid Chess Tournament 2026 | King's Indian Attack: Yugoslav Variation | |
| May 7, 2026 | Cekro | 0–1 | Onyshchuk | Luc Winants Memorial Rapid Chess Tournament 2026 | English Opening: Great Snake Variation | |
| May 7, 2026 | Onyshchuk | 1–0 | Smekens | Luc Winants Memorial Rapid Chess Tournament 2026 | King's Indian Attack: Wahls Defense | |
| Apr 26, 2026 | Bacrot | ½–½ | Onyshchuk | Round 15: Bacrot, Etienne - Onyshchuk, Volodymyr | Ruy Lopez: Berlin Defense, l'Hermet Variation, Berlin Wall Defense | |
| Apr 25, 2026 | Onyshchuk | ½–½ | Ferreira | Round 14: Onyshchuk, Volodymyr - Ferreira, Jorge Viterbo | King's Indian Attack, with e6 | |
| Apr 24, 2026 | Onyshchuk | 1–0 | Van Foreest | BL 2526 SC Viernheim - Sfr. Wolfhagen | Neo-Grünfeld Defense: Classical Variation, Original Defense | |
| Mar 22, 2026 | Pichot | 0–1 | Onyshchuk | Schachbundesliga Saison 2025/2026 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Mar 21, 2026 | Onyshchuk | 1–0 | Bogosavljevic | Schachbundesliga Saison 2025/2026 | King's Indian Attack: Double Fianchetto | |
| Mar 1, 2026 | Onyshchuk | 1–0 | Grigorian | 1. BL Bremen | Zukertort Opening | |
| Feb 28, 2026 | Martinovic | 1–0 | Onyshchuk | 1. BL Bremen | King's Indian Defense: Orthodox Variation | |
| Feb 8, 2026 | Handke | 0–1 | Onyshchuk | Deutsche Schach-Bundesliga | Ruy Lopez: Berlin Defense, Rio Gambit Accepted | |
| Feb 7, 2026 | Onyshchuk | 1–0 | Klaska | Deutsche Schach-Bundesliga | Sicilian Defense: Classical Variation, Fianchetto Variation | |
| Jan 11, 2026 | Andersen | 1–0 | Onyshchuk | Schachbundesliga Saison 2025/2026 | Pirc Defense: Classical Variation, Quiet System, Czech Defense | |
| Jan 10, 2026 | Onyshchuk | 0–1 | Engel | Schachbundesliga Saison 2025/2026 | King's Indian Attack | |
| Dec 7, 2025 | Onyshchuk | ½–½ | Kjartansson | BL 2526 Sfr. Wolfhagen - MSA Zugzwang | King's Indian Attack | |
| Dec 6, 2025 | Moussard | 0–1 | Onyshchuk | BL 2526 Schachfreunde Deizisau - Sfr. Wolfhagen | Caro-Kann Defense: Advance Variation, Short Variation | |
| Nov 16, 2025 | Kolosowski | 0–1 | Onyshchuk | Semifinals Game 2: Kolosowski, Mateusz - Onyshchuk, Volodymyr | Modern Defense: Standard Defense | |
| Nov 16, 2025 | Onyshchuk | ½–½ | Kolosowski | Semifinals Game 1: Onyshchuk, Volodymyr - Kolosowski, Mateusz | King's Indian Attack: Double Fianchetto | |
| Nov 15, 2025 | Onyshchuk | 1–0 | Acs | Finals Game 2: Onyshchuk, Volodymyr - Acs, Peter | King's Indian Attack: Symmetrical Defense | |
| Nov 15, 2025 | Acs | 0–1 | Onyshchuk | Finals Game 1: Acs, Peter - Onyshchuk, Volodymyr | Pirc Defense: Classical Variation, Quiet System, Czech Defense | |
| Nov 15, 2025 | Akbalin | 0–1 | Onyshchuk | Round 10: Akbalin, Meirambek - Onyshchuk, Volodymyr | Rat Defense: English Rat | |
| Nov 15, 2025 | Onyshchuk | 1–0 | Prateek Wadhwa | Round 8: Onyshchuk, Volodymyr - Prateek Wadhwa | Zukertort Opening | |
| Nov 14, 2025 | Onyshchuk | 1–0 | Irmanov | Round 5: Onyshchuk, Volodymyr - Irmanov, Didar | King's Indian Attack | |
| Nov 14, 2025 | Prateek Wadhwa | 0–1 | Onyshchuk | Round 3: Prateek Wadhwa - Onyshchuk, Volodymyr | King's Indian Defense: Semi-Classical Variation, Hollywood Variation | |
| Nov 13, 2025 | Onyshchuk | 1–0 | Helmer | Round 2: Onyshchuk, Volodymyr - Helmer, Christoph | Zukertort Opening: Sicilian Invitation | |
| Nov 13, 2025 | Onyshchuk | 1–0 | Arunava Bhattacharjee | Round 6: Onyshchuk, Volodymyr - Arunava Bhattacharjee | King's Indian Attack: French Variation | |
| Nov 13, 2025 | Arunava Bhattacharjee | 0–1 | Onyshchuk | Round 1: Arunava Bhattacharjee - Onyshchuk, Volodymyr | Queen's Pawn Game | |
| Nov 13, 2025 | Helmer | 0–1 | Onyshchuk | Round 7: Helmer, Christoph - Onyshchuk, Volodymyr | Pirc Defense | |
| Sep 28, 2025 | Lagunow | 0–1 | Onyshchuk | Round 2: Lagunow, Raphael - Onyshchuk, Volodymyr | Pirc Defense: Austrian Attack, Weiss Variation | |
| Sep 27, 2025 | Onyshchuk | ½–½ | Neef | Round 1: Onyshchuk, Volodymyr - Neef, Maximilian | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Jun 10, 2025 | Onyshchuk | 0–1 | Gumularz | Druzynowe Mistrzostwa Polski - Ekstraliga 2025 | King's Indian Attack: Double Fianchetto | |
| Jun 9, 2025 | Cieslak | ½–½ | Onyshchuk | Druzynowe Mistrzostwa Polski - Ekstraliga 2025 | Ruy Lopez: Berlin Defense, Rio Gambit Accepted | |
| Jun 8, 2025 | Onyshchuk | ½–½ | Kowalski | Druzynowe Mistrzostwa Polski - Ekstraliga 2025 | King's Indian Attack: Pachman System | |
| Jun 7, 2025 | Kazakouski | ½–½ | Onyshchuk | Druzynowe Mistrzostwa Polski - Ekstraliga 2025 | Pirc Defense | |
| Jun 6, 2025 | Onyshchuk | 1–0 | Piorun | Druzynowe Mistrzostwa Polski - Ekstraliga 2025 | King's Indian Attack | |
| Jun 5, 2025 | Tomczak | 0–1 | Onyshchuk | Druzynowe Mistrzostwa Polski - Ekstraliga 2025 | Ruy Lopez: Berlin Defense | |
| Jun 4, 2025 | Onyshchuk | 1–0 | Krasenkow | Druzynowe Mistrzostwa Polski - Ekstraliga 2025 | Bishop's Opening: Berlin Defense | |
| Jun 3, 2025 | Baum | 0–1 | Onyshchuk | Druzynowe Mistrzostwa Polski - Ekstraliga 2025 | King's Indian Defense: Sämisch Variation, Bobotsov-Korchnoi-Petrosian Variation | |
| Jun 2, 2025 | Antoniewski | ½–½ | Onyshchuk | Druzynowe Mistrzostwa Polski - Ekstraliga 2025 | Pirc Defense | |
| Feb 17, 2025 | Onyshchuk | 0–1 | Mikhalevski | 2025 Champions Chess Tour Chessable Masters Playin Swiss | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Feb 17, 2025 | Onyshchuk | ½–½ | Batsuren | 2025 Champions Chess Tour Chessable Masters Playin Swiss | Caro-Kann Defense: Tartakower Variation | |
| Feb 17, 2025 | Onyshchuk | 1–0 | Harikrishna | 2025 Champions Chess Tour Chessable Masters Playin Swiss | Ruy Lopez: Closed | |
| Feb 17, 2025 | Onyshchuk | 0–1 | Antipov | 2025 Champions Chess Tour Chessable Masters Playin Swiss | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Feb 17, 2025 | Daneshvar | 1–0 | Onyshchuk | 2025 Champions Chess Tour Chessable Masters Playin Swiss | Queen's Pawn Game | |
| Feb 17, 2025 | Harsha Bharathakoti | ½–½ | Onyshchuk | 2025 Champions Chess Tour Chessable Masters Playin Swiss | Zukertort Opening: Kingside Fianchetto | |
| Feb 17, 2025 | Cuenca Jimenez | 0–1 | Onyshchuk | 2025 Champions Chess Tour Chessable Masters Playin Swiss | Queen's Pawn Game | |
| Feb 23, 2025 | Onyshchuk | 1–0 | Schlecht | Round 9: Onyshchuk, Volodymyr - Schlecht, Daniel, Dr. | King's Indian Attack | |
| Feb 22, 2025 | Rotstein | 0–1 | Onyshchuk | Round 8: Rotstein, Arkadij - Onyshchuk, Volodymyr | Modern Defense: Geller's System | |
| Sep 22, 2024 | Onyshchuk | 0–1 | Ivic | 45th FIDE Chess Olympiad | Sicilian Defense: Najdorf Variation, English Attack | |
| Sep 21, 2024 | Hovhannisyan | 1–0 | Onyshchuk | 45th FIDE Chess Olympiad | Ruy Lopez: Berlin Defense, l'Hermet Variation, Berlin Wall Defense | |
| Sep 20, 2024 | Pantsulaia | 0–1 | Onyshchuk | 45th FIDE Chess Olympiad | King's Indian Attack: Symmetrical Defense | |
| Sep 19, 2024 | Onyshchuk | 1–0 | Sosa | 45th FIDE Chess Olympiad | King's Indian Attack: Keres Variation | |
| Sep 16, 2024 | Draskovic | ½–½ | Onyshchuk | 45th FIDE Chess Olympiad | Caro-Kann Defense: Endgame Variation | |
| Sep 15, 2024 | Gledura | ½–½ | Onyshchuk | 45th FIDE Chess Olympiad | Caro-Kann Defense: Tartakower Variation | |
| Sep 12, 2024 | Roselli Mailhe | 0–1 | Onyshchuk | 45th FIDE Chess Olympiad | King's Indian Defense: Fianchetto Variation, Classical Variation | |
| Sep 11, 2024 | Onyshchuk | 1–0 | Amdouni | 45th FIDE Chess Olympiad | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| May 31, 2024 | Onyshchuk | 1–0 | Paprocki | Budapest Spring Festival | Italian Game: Hungarian Defense | |
| May 30, 2024 | Shagbazyan | 1–0 | Onyshchuk | Budapest Spring Festival | King's Indian Defense: Orthodox Variation, Donner Defense | |
| May 29, 2024 | Onyshchuk | 0–1 | Ivanisevic | Budapest Spring Festival | King's Indian Attack | |
| May 28, 2024 | Shohat | 0–1 | Onyshchuk | Budapest Spring Festival | Ruy Lopez: Berlin Defense, Rio Gambit Accepted | |
| May 27, 2024 | Onyshchuk | ½–½ | Kantor | Budapest Spring Festival | Ruy Lopez: Closed | |
| May 26, 2024 | Wadsworth | 0–1 | Onyshchuk | Budapest Spring Festival | King's Indian Defense: Fianchetto Variation, Carlsbad Variation | |
| May 25, 2024 | Onyshchuk | 1–0 | Cieslak | Budapest Spring Festival | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| May 24, 2024 | Neverov | ½–½ | Onyshchuk | Budapest Spring Festival | Pirc Defense: Classical Variation | |
| May 23, 2024 | Onyshchuk | 1–0 | Levitan | Budapest Spring Festival | Italian Game: Anti-Fried Liver Defense | |
| Nov 23, 2024 | Onyshchuk | 0–1 | Vachier-Lagrave | Round 5: Onyshchuk, Volodymyr - Vachier-Lagrave, Maxime | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Nov 23, 2024 | Onyshchuk | ½–½ | Kamsky | Round 6: Onyshchuk, Volodymyr - Kamsky, Gata | King's Indian Attack: Symmetrical Defense | |
| Nov 23, 2024 | Onyshchuk | 0–1 | Urkedal | Round 8: Onyshchuk, Volodymyr - Urkedal, Frode Olav Olsen | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Nov 22, 2024 | L'Ami | 0–1 | Onyshchuk | Round 4: L'Ami, Erwin - Onyshchuk, Volodymyr | Pirc Defense: Austrian Attack, Unzicker Attack | |
| Jul 21, 2024 | Kelemen | 0–1 | Onyshchuk | IX.Csaba Arpad Emlekvereny | Pirc Defense: Classical Variation, Quiet System | |
| Jul 20, 2024 | Onyshchuk | 1–0 | Matyassy | IX. Csaba Arpad Emlekverseny | Sicilian Defense: Classical Variation, Fianchetto Variation | |
| Jul 20, 2024 | Onyshchuk | 1–0 | Lakos | IX.Csaba Arpad Emlekvereny | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Jul 20, 2024 | Onyshchuk | 0–1 | Erdos | IX. Csaba Arpad Emlekverseny | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jul 20, 2024 | Onyshchuk | ½–½ | Csonka | IX. Csaba Arpad Emlekverseny | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jul 20, 2024 | Onyshchuk | 1–0 | Acs | IX. Csaba Arpad Emlekverseny | Sicilian Defense: Classical Variation, Fianchetto Variation | |
| Jul 20, 2024 | Medve | 0–1 | Onyshchuk | IX. Csaba Arpad Emlekverseny | Pirc Defense: Classical Variation | |
| Jul 20, 2024 | Glek | 1–0 | Onyshchuk | IX. Csaba Arpad Emlekverseny | Pirc Defense: Austrian Attack, Weiss Variation | |
| Jul 20, 2024 | Jakab | 0–1 | Onyshchuk | IX. Csaba Arpad Emlekverseny | Rat Defense: English Rat | |
| Jul 20, 2024 | Khotenashvili | ½–½ | Onyshchuk | IX. Csaba Arpad Emlekverseny | Zukertort Opening: Kingside Fianchetto | |
| Jul 20, 2024 | Papp | * | Onyshchuk | IX. Csaba Arpad Emlekverseny | English Opening | |
| Jul 19, 2024 | Onyshchuk | 1–0 | Bodrogi | IX. Csaba Arpad Emlekverseny | Caro-Kann Defense: Two Knights Attack | |
| Jul 19, 2024 | Onyshchuk | 1–0 | Vanczak | IX.Csaba Arpad Emlekvereny | Caro-Kann Defense: Forgacs Variation | |
| Jul 19, 2024 | Onyshchuk | 1–0 | Bod | IX.Csaba Arpad Emlekvereny | Sicilian Defense: French Variation, Westerinen Attack | |
| Jul 19, 2024 | Onyshchuk | ½–½ | Papp | IX. Csaba Arpad Emlekverseny | Caro-Kann Defense: Endgame Offer | |
| Jul 19, 2024 | Onyshchuk | 0–1 | Papp | IX.Csaba Arpad Emlekvereny | French Defense: Schlechter Variation | |
| Jul 19, 2024 | Onyshchuk | ½–½ | Aveskulov | IX. Csaba Arpad Emlekverseny | Sicilian Defense: Najdorf Variation | |
| Jul 19, 2024 | Onyshchuk | 1–0 | Jovanovic | IX. Csaba Arpad Emlekverseny | Philidor Defense: Lion Variation | |
| Jul 19, 2024 | Liu | ½–½ | Onyshchuk | IX. Csaba Arpad Emlekverseny | King's Indian Defense: Semi-Classical Variation, Queenside Storm Line | |
| Jul 19, 2024 | Haring | 1–0 | Onyshchuk | IX. Csaba Arpad Emlekverseny | King's Indian Defense: Fianchetto Variation, Uhlmann-Szabo System | |
| Jul 19, 2024 | Golubovic | ½–½ | Onyshchuk | IX.Csaba Arpad Emlekvereny | English Opening | |
| Jul 19, 2024 | Cabarkapa | 0–1 | Onyshchuk | IX. Csaba Arpad Emlekverseny | Pirc Defense: 150 Attack, Sveshnikov-Jansa Attack | |
| Jul 19, 2024 | Horvath | 0–1 | Onyshchuk | IX. Csaba Arpad Emlekverseny | Pirc Defense | |
| Jul 19, 2024 | Livaic | 0–1 | Onyshchuk | IX. Csaba Arpad Emlekverseny | Pirc Defense | |
| Dec 30, 2021 | Onyshchuk | 1–0 | Petrosian | Open | Pirc Defense: Austrian Attack, Unzicker Attack | |