| May 29, 2026 | Kaczmarczyk | 0–1 | Kicinska | DMPJ - I Liga 2026 | Sicilian Defense: Closed | |
| May 28, 2026 | Branka | 1–0 | Kaczmarczyk | Druzynowe Mistrzostwa Polski Juniorow - I Liga 2026 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| May 27, 2026 | Piekutowska | ½–½ | Kaczmarczyk | DMPJ - I Liga 2026 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| May 26, 2026 | Kaczmarczyk | 0–1 | Polakiewicz | DMPJ - I Liga 2026 | Caro-Kann Defense: Classical Variation, Spassky Variation | |
| May 25, 2026 | Kaczmarczyk | 1–0 | Kwasiborska | DMPJ - I Liga 2026 | Caro-Kann Defense: Tartakower Variation | |
| May 24, 2026 | Kowalczyk | 0–1 | Kaczmarczyk | Druzynowe Mistrzostwa Polski Juniorow - I Liga 2026 | Queen's Gambit Declined | |
| Mar 15, 2026 | Kaczmarczyk | 0–1 | Bastrzyk | Indywidualne Mistrzostwa Polski Juniorow 2026 - D16 | Rat Defense: English Rat | |
| Mar 14, 2026 | Piotrowska | 0–1 | Kaczmarczyk | Indywidualne Mistrzostwa Polski Juniorow 2026 - D16 | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Mar 13, 2026 | Kaczmarczyk | 0–1 | Stolarz | Indywidualne Mistrzostwa Polski Juniorow 2026 - D16 | Sicilian Defense: Closed, Traditional | |
| Mar 12, 2026 | Szczap | 0–1 | Kaczmarczyk | Indywidualne Mistrzostwa Polski Juniorow 2026 - D16 | English Opening: King's English Variation | |
| Mar 11, 2026 | Gora | 1–0 | Kaczmarczyk | Indywidualne Mistrzostwa Polski Juniorow 2026 - D16 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Mar 10, 2026 | Kaczmarczyk | 1–0 | Witkowska | Indywidualne Mistrzostwa Polski Juniorow 2026 - D16 | Queen's Gambit Declined: Ragozin Defense | |
| Mar 10, 2026 | Kaczmarczyk | ½–½ | Mielnik | Indywidualne Mistrzostwa Polski Juniorow 2026 - D16 | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Mar 9, 2026 | Jedlikowska | 1–0 | Kaczmarczyk | Indywidualne Mistrzostwa Polski Juniorow 2026 - D16 | Queen's Gambit Declined: Modern Variation, Knight Defense | |
| Mar 8, 2026 | Kaczmarczyk | 0–1 | Sekiewicz | Indywidualne Mistrzostwa Polski Juniorow 2026 - D16 | King's Indian Defense: Makogonov Variation | |
| Jun 26, 2025 | Bartkowiak | 1–0 | Kaczmarczyk | II DMP Juniorow | Sicilian Defense: Najdorf Variation, English Attack | |
| Jun 25, 2025 | Kaczmarczyk | ½–½ | Racis | II DMP Juniorow | English Opening: Symmetrical Variation | |
| Jun 24, 2025 | Kochanowska | 0–1 | Kaczmarczyk | II DMP Juniorow | Queen's Gambit Declined: Modern Variation, Knight Defense | |
| Jun 23, 2025 | Sieczkowska | 0–1 | Kaczmarczyk | II DMP Juniorow | Queen's Gambit Declined: Barmen Variation | |
| Jun 22, 2025 | Kaczmarczyk | 1–0 | Holubowska | II DMP Juniorow | Scotch Game: Classical Variation | |
| Jun 21, 2025 | Kaczmarczyk | 1–0 | Trzcinska | II DMP Juniorow | Scotch Game | |
| Jun 20, 2025 | Dudek | 0–1 | Kaczmarczyk | II DMP Juniorow | Sicilian Defense: Grand Prix Attack | |
| Jun 19, 2025 | Kaczmarczyk | 1–0 | Wypior | II DMP Juniorow | Caro-Kann Defense: Tartakower Variation | |
| Jun 18, 2025 | Lapczynska | 0–1 | Kaczmarczyk | II DMP Juniorow | Sicilian Defense: Najdorf Variation | |
| Jun 14, 2025 | Kilarska | 0–1 | Kaczmarczyk | MWJ | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Jun 14, 2025 | Kaczmarczyk | 1–0 | Wlodarczyk | MWJ | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Jun 13, 2025 | Antoniewicz | 0–1 | Kaczmarczyk | MWJ | Sicilian Defense: Hyperaccelerated Fianchetto | |
| Jun 12, 2025 | Kaczmarczyk | 1–0 | Ciesielska | MWJ | Scotch Game | |
| Jun 11, 2025 | Kaczmarczyk | 1–0 | Augustyniak | MWJ | Scotch Game: Scotch Gambit, London Defense | |
| Jun 11, 2025 | Kaczmarczyk | ½–½ | Jankowska | MWJ | Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense | |
| Jun 11, 2025 | Witkowska | 1–0 | Kaczmarczyk | MWJ | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Jun 11, 2025 | Kaczmarczyk | 1–0 | Sewohl | MWJ | Italian Game: Scotch Invitation Declined | |
| Jun 10, 2025 | Banach | 0–1 | Kaczmarczyk | MWJ | Sicilian Defense: Closed, Traditional | |
| Aug 25, 2024 | Babijczuk | ½–½ | Kaczmarczyk | rubinstein24-e | Sicilian Defense: Hyperaccelerated Fianchetto | |
| Aug 23, 2024 | Juszczak | 1–0 | Kaczmarczyk | rubinstein24-e | English Opening: Agincourt Defense | |
| Aug 22, 2024 | Kaczmarczyk | ½–½ | Karalchuk | rubinstein24-e | Caro-Kann Defense: Tartakower Variation | |
| Aug 21, 2024 | Renault | 0–1 | Kaczmarczyk | rubinstein24-e | Nimzo-Larsen Attack: Classical Variation | |
| Aug 2, 2024 | Kaczmarczyk | 0–1 | Figa | Rapid D14 | Caro-Kann Defense: Tartakower Variation | |
| Aug 2, 2024 | Kaczmarczyk | ½–½ | Walewska | Rapid D14 | Italian Game: Classical Variation, Greco Gambit | |
| Jun 3, 2024 | Kaczmarczyk | 0–1 | Kilarska | xd | Italian Game: Classical Variation, Greco Gambit | |
| Jun 2, 2024 | Kaczmarczyk | 0–1 | Mucha | xd | Italian Game: Scotch Gambit, Max Lange Attack | |
| Jun 1, 2024 | Kaczmarczyk | 1–0 | Janaszak | xd | French Defense: Franco-Sicilian Defense | |
| May 30, 2024 | Kaczmarczyk | 0–1 | Bartkowiak | xd | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| — | Kaczmarczyk | ½–½ | Gawlik | Rubinstein Chess Festival 2025 - OPEN B | Caro-Kann Defense: Tartakower Variation | |
| — | Kaczmarczyk | 0–1 | Kroliczek | Rubinstein Chess Festival 2025 - OPEN B | French Defense: Schlechter Variation | |
| — | Kaczmarczyk | 0–1 | Ronke | Rubinstein Chess Festival 2025 - OPEN B | French Defense: Schlechter Variation | |
| — | Kaczmarczyk | ½–½ | Benes | Rubinstein Chess Festival 2025 - OPEN B | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| — | Kuska | ½–½ | Kaczmarczyk | Rubinstein Chess Festival 2025 - OPEN B | Bird Opening: Dutch Variation | |
| — | Stefaniuk | 1–0 | Kaczmarczyk | Rubinstein Chess Festival 2025 - OPEN B | Catalan Opening: Closed | |
| — | Hampel | ½–½ | Kaczmarczyk | Rubinstein Chess Festival 2025 - OPEN B | Sicilian Defense: Accelerated Dragon | |
| — | Sawczuk | 1–0 | Kaczmarczyk | Rubinstein Chess Festival 2025 - OPEN B | Queen's Pawn Game: London System | |
| — | Ewiak | 1–0 | Kaczmarczyk | Rubinstein Chess Festival 2025 - OPEN B | Sicilian Defense: Grand Prix Attack | |
