| Jul 13, 2026 | Szczypka | 0–1 | Onopriienko | Blitz D10 | Benoni Defense | |
| Jul 13, 2026 | Onopriienko | 1–0 | Trzcinska | Blitz D10 | Queen's Pawn Game: Chigorin Variation | |
| Jul 13, 2026 | Cholewa | 1–0 | Onopriienko | Blitz D10 | Benoni Defense: Weenink Variation | |
| Jul 13, 2026 | Kocisz | 0–1 | Onopriienko | Blitz D10 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Jul 13, 2026 | Onopriienko | 1–0 | Ponikowska | Blitz D10 | Queen's Pawn Game: Chigorin Variation | |
| Jul 13, 2026 | Onopriienko | 1–0 | Malaczynska | Blitz D10 | Bogo-Indian Defense: Exchange Variation | |
| Jul 13, 2026 | Malinowska | 0–1 | Onopriienko | Blitz D10 | Caro-Kann Defense: Advance Variation | |
| Jul 13, 2026 | Onopriienko | 0–1 | Kwiatkowska | Blitz D10 | Queen's Gambit Declined: Modern Variation, Normal Line | |
| Jul 13, 2026 | Polanska | 0–1 | Onopriienko | Blitz D10 | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Jul 12, 2026 | Cholewa | 0–1 | Onopriienko | Rapid D10 | Polish Opening, with d5 | |
| Jul 12, 2026 | Onopriienko | 1–0 | Psarska | Rapid D10 | Queen's Pawn Game: Zukertort Variation | |
| Jul 12, 2026 | Guziana | 0–1 | Onopriienko | Rapid D10 | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Jul 12, 2026 | Onopriienko | 1–0 | Rozek | Rapid D10 | Queen's Gambit Declined: Ragozin Defense | |
| Jul 11, 2026 | Ponikowska | 0–1 | Onopriienko | Rapid D10 | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Jul 11, 2026 | Onopriienko | 1–0 | Kwiatkowska | Rapid D10 | Queen's Pawn Game: Chigorin Variation | |
| Jul 10, 2026 | Onopriienko | 1–0 | Bos | Blitz D10 | Queen's Pawn Game: London System | |
| Jul 10, 2026 | Pienio | 1–0 | Onopriienko | Blitz D10 | Benko Gambit Accepted: Fully Accepted Variation | |
| Jul 10, 2026 | Onopriienko | 0–1 | Bos | Rapid D10 | Queen's Gambit Accepted: Classical Defense, Alekhine System | |
| Jul 10, 2026 | Onopriienko | ½–½ | Pienio | Rapid D10 | Queen's Gambit Declined: Semi-Tarrasch Defense | |
| Jul 9, 2026 | Onopriienko | 0–1 | Ilku | Blitz Girls 10 | Queen's Gambit Declined: Three Knights Variation | |
| Jul 9, 2026 | Ilku | 0–1 | Onopriienko | Blitz Girls 10 | Indian Defense: Colle System, King's Indian Variation | |
| Jul 9, 2026 | Onopriienko | ½–½ | Cholewa | Blitz Girls 10 | King's Indian Defense: Normal Variation, King's Knight Variation | |
| Jul 9, 2026 | Cholewa | 1–0 | Onopriienko | Blitz Girls 10 | Polish Opening, with d5 | |
| Jul 9, 2026 | Onopriienko | 0–1 | Malaczynska | Blitz Girls 10 | Bogo-Indian Defense: Grünfeld Variation | |
| Jul 9, 2026 | Malaczynska | ½–½ | Onopriienko | Blitz Girls 10 | English Opening: Caro-Kann Defensive System | |
| Jul 9, 2026 | Onopriienko | 1–0 | Classen | Blitz Girls 10 | Bogo-Indian Defense: Grünfeld Variation | |
| Jul 9, 2026 | Classen | 0–1 | Onopriienko | Blitz Girls 10 | Sicilian Defense: Closed | |
| Jul 9, 2026 | Onopriienko | 0–1 | Bos | Blitz Girls 10 | Queen's Gambit Accepted: Normal Variation, Traditional System | |
| Jul 9, 2026 | Bos | 1–0 | Onopriienko | Blitz Girls 10 | Sicilian Defense: Closed, Traditional | |
| Jul 9, 2026 | Onopriienko | 1–0 | Bartosova | Blitz Girls 10 | Semi-Slav Defense: Meran Variation | |
| Jul 9, 2026 | Bartosova | 0–1 | Onopriienko | Blitz Girls 10 | Sicilian Defense: Old Sicilian | |
| Jul 9, 2026 | Onopriienko | ½–½ | Lavrynenko | Blitz Girls 10 | Slav Defense: Quiet Variation, Pin Defense | |
| Jul 9, 2026 | Lavrynenko | 1–0 | Onopriienko | Blitz Girls 10 | Benko Gambit | |
| Jul 9, 2026 | Dutcovici | 0–1 | Onopriienko | Blitz Girls 10 | Trompowsky Attack | |
| Jul 9, 2026 | Onopriienko | * | Dutcovici | Blitz Girls 10 | Trompowsky Attack | |
| Jul 8, 2026 | Onopriienko | 1–0 | Cholewa | Rapid Girls 10 | King's Indian Defense: Normal Variation, King's Knight Variation | |
| Jul 8, 2026 | Classen | 0–1 | Onopriienko | Rapid Girls 10 | English Opening: Symmetrical Variation, Anti-Benoni Variation | |
| Jul 7, 2026 | Onopriienko | 0–1 | Pienio | Rapid Girls 10 | Queen's Gambit Declined: Semi-Tarrasch Defense | |
| Jul 7, 2026 | Boiko | ½–½ | Onopriienko | Rapid Girls 10 | English Opening: Caro-Kann Defensive System | |
| Jul 7, 2026 | Onopriienko | 0–1 | Szaroszyk | Rapid Girls 10 | Queen's Indian Defense: Kasparov-Petrosian Variation, Marco Defense | |
| Jul 7, 2026 | Ilku | 0–1 | Onopriienko | Rapid Girls 10 | Sicilian Defense: Old Sicilian | |
| Mar 22, 2026 | Onopriienko | 0–1 | Nagly | IV Dolnoslaska Liga Juniorow 2026 | Queen's Indian Defense: Miles Variation | |
| Mar 22, 2026 | Onopriienko | ½–½ | Pienio | IV Dolnoslaska Liga Juniorow 2026 | Indian Defense: Anti-Nimzo-Indian | |
| Mar 21, 2026 | Onopriienko | 0–1 | Przygodzka | IV Dolnoslaska Liga Juniorow 2026 | Dutch Defense: Hopton Attack | |
| Mar 21, 2026 | Szymczak | 0–1 | Onopriienko | IV Dolnoslaska Liga Juniorow 2026 | Caro-Kann Defense | |
| Mar 21, 2026 | Onopriienko | 1–0 | Trendel | IV Dolnoslaska Liga Juniorow 2026 | Slav Defense: Quiet Variation, Schallopp Defense | |
| Oct 4, 2025 | Swiderski | 1–0 | Onopriienko | MP-rapid25 | Sicilian Defense: Dragon Variation, Yugoslav Attack, Modern Line | |
| — | Onopriienko | 0–1 | Witczak | Memorial Adolfa Anderssena 2025 | King's Indian Defense: Normal Variation, King's Knight Variation | |
| — | Onopriienko | 1–0 | Sikora | Memorial Adolfa Anderssena 2025 | Queen's Gambit Declined: Three Knights, Vienna Variation | |
| — | Onopriienko | 0–1 | Solecki | Memorial Adolfa Anderssena 2025 | Benoni Defense: Old Benoni | |
| — | Onopriienko | 0–1 | Zarczuk | Memorial Adolfa Anderssena 2025 | Queen's Pawn Game: London System | |
| — | Onopriienko | 0–1 | Milczarek | Memorial Adolfa Anderssena 2025 | Queen's Gambit Declined: Harrwitz Attack | |
| — | Onopriienko | 0–1 | Stachniak | Round 1: Onopriienko, Mariia - Stachniak, Stanislaw | ? | |
| — | Onopriienko | 1–0 | Karas | Round 3: Onopriienko, Mariia - Karas, Kacper | Zukertort Opening: Sicilian Invitation | |
| — | Onopriienko | 0–1 | Belau | Round 6: Onopriienko, Mariia - Belau, Tomasz | ? | |
| — | Onopriienko | 0–1 | Marek Gorny | Round 8: Onopriienko, Mariia - Marek Gorny | ? | |
| — | Onopriienko | 0–1 | Szczurek | D10 | Queen's Gambit Declined: Semi-Tarrasch Defense | |
| — | Onopriienko | ½–½ | Karcz | D10 | Slav Defense: Three Knights Variation | |
| — | Onopriienko | 1–0 | Rozek | D10 | Grünfeld Defense: Three Knights Variation, Hungarian Attack | |
| — | Onopriienko | 1–0 | Czerwinska | D10b | Queen's Pawn Game: Zukertort Variation | |
| — | Onopriienko | 1–0 | Pienio | D10b | Indian Defense: Anti-Nimzo-Indian | |
| — | Onopriienko | 1–0 | Pawlowska | D10b | Queen's Pawn Game: Chigorin Variation | |
| — | Onopriienko | 0–1 | Grzeszczyk | D10b | Queen's Gambit Declined: Three Knights Variation | |
| — | Onopriienko | 1–0 | Switalska | D10b | Queen's Gambit Declined: Semi-Tarrasch Defense | |
| — | Onopriienko | 1–0 | Plocharczyk | D10b | King's Indian Defense: Normal Variation, King's Knight Variation | |
| — | Kowalski | 1–0 | Onopriienko | Memorial Adolfa Anderssena 2025 | Caro-Kann Defense: Two Knights Attack | |
| — | Kostic | 1–0 | Onopriienko | Memorial Adolfa Anderssena 2025 | Pirc Defense: Austrian Attack | |
| — | Huchla | ½–½ | Onopriienko | Memorial Adolfa Anderssena 2025 | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| — | Jacek Gorny | 1–0 | Onopriienko | Round 2: Jacek Gorny - Onopriienko, Mariia | Zukertort Opening: Sicilian Invitation | |
| — | Semp | 1–0 | Onopriienko | Round 5: Semp, Szymon - Onopriienko, Mariia | ? | |
| — | Hermans | 0–1 | Onopriienko | Round 7: Hermans, Jan - Onopriienko, Mariia | ? | |
| — | Lebek | 1–0 | Onopriienko | Round 9: Lebek, Janusz - Onopriienko, Mariia | ? | |
| — | Oledzka | ½–½ | Onopriienko | D10 | Caro-Kann Defense: Exchange Variation | |
| — | Cyboran | 0–1 | Onopriienko | D10 | Caro-Kann Defense: Exchange Variation | |
| — | Przewlocka | ½–½ | Onopriienko | D10 | Caro-Kann Defense: Advance Variation | |
| — | Bos | 1–0 | Onopriienko | D10b | Caro-Kann Defense: Advance Variation, Short Variation | |
| — | Szczurek | 0–1 | Onopriienko | D10b | Caro-Kann Defense: Exchange Variation | |
| — | Karcz | 1–0 | Onopriienko | D10b | Caro-Kann Defense: Classical Variation | |
| — | Zelazny | 0–1 | Onopriienko | D10b | Caro-Kann Defense: Hillbilly Attack | |
| — | Taradajko | 1–0 | Onopriienko | D10b | King's Indian Defense: Fianchetto Variation, Yugoslav System | |
| — | Przewlocka | 1–0 | Onopriienko | D10b | Caro-Kann Defense: Advance Variation, Short Variation | |