| Jul 13, 2026 | Rekuc | 1–0 | Kowalski | Blitz C18 | Queen's Pawn Game: Zukertort Variation | |
| Jul 13, 2026 | Kowalski | 1–0 | Legierski | Blitz C18 | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Jul 13, 2026 | Musial | 1–0 | Kowalski | Blitz C18 | Ruy Lopez: Schliemann Defense | |
| Jul 13, 2026 | Kowalski | 1–0 | Bochniak | Blitz C18 | Scotch Game: Schmidt Variation | |
| Jul 13, 2026 | Warchol | 1–0 | Kowalski | Blitz C18 | Scandinavian Defense: Main Line | |
| Jul 12, 2026 | Kowalski | ½–½ | Raczek | Rapid C18 | St. George Defense | |
| Jul 12, 2026 | Nagly | 1–0 | Kowalski | Rapid C18 | Catalan Opening: Closed | |
| Jul 11, 2026 | Sowinski | 1–0 | Kowalski | Rapid C18 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jul 11, 2026 | Kowalski | 0–1 | Borischik | Rapid C18 | Sicilian Defense: Four Knights Variation, Exchange Variation | |
| Jul 9, 2026 | Kowalski | 0–1 | Warchol | rzeszow | Zukertort Opening | |
| Jul 9, 2026 | Warchol | 1–0 | Kowalski | rzeszow | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Jul 8, 2026 | Jasiulewicz | 1–0 | Kowalski | rzeszow | Queen's Gambit Declined: Barmen Variation | |
| Jul 7, 2026 | Warchol | 1–0 | Kowalski | rzeszow | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jul 7, 2026 | Kowalski | ½–½ | Lyakh | rzeszow | Sicilian Defense: Najdorf Variation | |
| Jul 5, 2026 | Kowalski | 1–0 | Siennicki | Najdorf Memorial | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Jul 4, 2026 | Mroczkowski | ½–½ | Kowalski | Najdorf Memorial | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Jul 3, 2026 | Kowalski | 1–0 | Kaliszewski | Najdorf Memorial | Scotch Game: Potter Variation | |
| Jul 2, 2026 | Podgorski | ½–½ | Kowalski | Najdorf Memorial | Catalan Opening: Closed | |
| Jul 1, 2026 | Kowalski | 0–1 | Kaliszuk | Najdorf Memorial | Scotch Game: Potter Variation | |
| Jun 30, 2026 | Pancewicz | ½–½ | Kowalski | Najdorf Memorial | Caro-Kann Defense: Exchange Variation | |
| Jun 29, 2026 | Kowalski | ½–½ | Wasiluk | Najdorf Memorial | Sicilian Defense: Najdorf Variation | |
| Jun 28, 2026 | Backiel | 1–0 | Kowalski | Najdorf Memorial | Zukertort Opening | |
| Jun 27, 2026 | Kowalski | ½–½ | Mroczkowski | Macieja Memorial | Nimzo-Larsen Attack: Classical Variation | |
| Jun 27, 2026 | Filipow | 0–1 | Kowalski | Macieja Memorial | English Opening: Agincourt Defense | |
| Jun 27, 2026 | Kowalski | ½–½ | Wolak | Macieja Memorial | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Jun 27, 2026 | Flis | ½–½ | Kowalski | Macieja Memorial | Bird Opening: Dutch Variation | |
| Jun 27, 2026 | Kowalski | ½–½ | Malinowski | Macieja Memorial | King's Indian Attack | |
| Jun 27, 2026 | Kowalski | 0–1 | Macieja | Macieja Memorial | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Jun 27, 2026 | Kowalski | ½–½ | Rzap | Najdorf Memorial | Caro-Kann Defense: Advance Variation, Short Variation | |
| May 29, 2026 | Kowalski | 1–0 | Macura | Druzynowe Mistrzostwa Polski Juniorow - I Liga 2026 | French Defense: Tarrasch Variation, Morozevich Variation | |
| May 28, 2026 | Dylong | ½–½ | Kowalski | Druzynowe Mistrzostwa Polski Juniorow - I Liga 2026 | Zukertort Opening | |
| May 27, 2026 | Wilusz | 1–0 | Kowalski | Druzynowe Mistrzostwa Polski Juniorow - I Liga 2026 | Sicilian Defense: Taimanov Variation | |
| May 25, 2026 | Pycinski | 1–0 | Kowalski | Druzynowe Mistrzostwa Polski Juniorow - I Liga 2026 | Sicilian Defense: French Variation | |
| May 24, 2026 | Kowalski | 1–0 | Wandor | Druzynowe Mistrzostwa Polski Juniorow - I Liga 2026 | Sicilian Defense: Najdorf Variation | |
| May 21, 2026 | Kowalski | 0–1 | Rajlich | Druzynowe Mistrzostwa Polski Juniorow - I Liga 2026 | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Apr 2, 2026 | Buckels | 1–0 | Kowalski | Grenke Chess Festival 2026 Open | Queen's Pawn Game: London System | |
| Mar 15, 2026 | Kowalski | ½–½ | Bartnik | Indywidualne Mistrzostwa Polski Juniorow 2026 - C18 | Petrov's Defense: Damiano Variation, Kholmov Gambit | |
| Mar 14, 2026 | Sawicki | 1–0 | Kowalski | Indywidualne Mistrzostwa Polski Juniorow 2026 - C18 | Benoni Defense: Knight's Tour Variation | |
| Mar 13, 2026 | Kowalski | 1–0 | Jozwiak | Indywidualne Mistrzostwa Polski Juniorow 2026 - C18 | Philidor Defense: Lion Variation | |
| Mar 12, 2026 | Przedlacki | 1–0 | Kowalski | Indywidualne Mistrzostwa Polski Juniorow 2026 - C18 | Sicilian Defense: Dragon Variation, Classical Variation, Normal Line | |
| Mar 11, 2026 | Kowalski | 0–1 | Borischik | Indywidualne Mistrzostwa Polski Juniorow 2026 - C18 | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Mar 10, 2026 | Krol | ½–½ | Kowalski | Indywidualne Mistrzostwa Polski Juniorow 2026 - C18 | King's Indian Attack: French Variation | |
| Mar 10, 2026 | Ugorek | 1–0 | Kowalski | Indywidualne Mistrzostwa Polski Juniorow 2026 - C18 | Blumenfeld Countergambit: Duz-Khotimirsky Variation | |
| Mar 9, 2026 | Kowalski | ½–½ | Rekuc | Indywidualne Mistrzostwa Polski Juniorow 2026 - C18 | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Mar 8, 2026 | Kowalski | 1–0 | Dobosiewicz | Indywidualne Mistrzostwa Polski Juniorow 2026 - C18 | Sicilian Defense: Dragon Variation, Yugoslav Attack | |
| Sep 20, 2025 | Alvarado | * | Kowalski | Szansa25 | ? | |
| Sep 20, 2025 | Kowalski | * | Rabiej | Szansa25 | ? | |
| Sep 20, 2025 | Spicak | * | Kowalski | Szansa25 | ? | |
| Sep 20, 2025 | Kowalski | * | Stanczak | Szansa25 | ? | |
| Sep 20, 2025 | Piekutowska | * | Kowalski | Szansa25 | ? | |
| Sep 20, 2025 | Kowalski | * | Lesik | Szansa25 | ? | |
| Sep 20, 2025 | Zochowski | 1–0 | Kowalski | Szansa25 | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Sep 20, 2025 | Kowalski | 1–0 | Iwulski | Szansa25 | English Opening: Great Snake Variation | |
| Sep 20, 2025 | Mroczkowski | * | Kowalski | Szansa25 | ? | |
| Sep 20, 2025 | Kowalski | * | Burlov | Szansa25 | ? | |
| Sep 7, 2025 | Kowalski | ½–½ | Goszczynski | 2 liga 2025 1 | Sicilian Defense: Kan Variation, Polugaevsky Variation | |
| Sep 6, 2025 | Fistek | 1–0 | Kowalski | 2 liga 2025 1 | Queen's Gambit Declined: Janowski Variation | |
| Sep 5, 2025 | Paluszek | 1–0 | Kowalski | 2 liga 2025 1 | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Sep 4, 2025 | Kowalski | ½–½ | Terkiewicz | 2liga_2025_3 | Four Knights Game: Gunsberg Variation | |
| Sep 3, 2025 | Malik | 1–0 | Kowalski | 2 liga 2025 1 | Sicilian Defense: French Variation | |
| Sep 2, 2025 | Kowalski | 0–1 | Gorkiewicz | 2 liga 2025 1 | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| Sep 1, 2025 | Stoma | 0–1 | Kowalski | 2 liga 2025 1 | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Jul 16, 2025 | Savitha Shri B | 0–1 | Kowalski | Macieja Memorial | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Jul 16, 2025 | Witczak | 1–0 | Kowalski | Najdorf Memorial | Nimzo-Indian Defense: Normal Variation | |
| Jul 16, 2025 | Kowalski | 1–0 | Taranowicz | Macieja Memorial | King's Indian Defense: Sämisch Variation, Panno Formation | |
| Jul 13, 2025 | Kowalski | 0–1 | Borowy | Najdorf Memorial | Sicilian Defense: Dragon Variation | |
| Jul 11, 2025 | Chomczyk | 1–0 | Kowalski | Najdorf Memorial | English Opening: Symmetrical Variation, Three Knights, Fianchetto Variation | |
| Jul 10, 2025 | Kowalski | ½–½ | Paluszek | Najdorf Memorial | English Opening: Symmetrical Variation, Rubinstein Variation | |
| Jul 8, 2025 | Kowalski | ½–½ | Romanishin | Najdorf Memorial | Scotch Game: Scotch Gambit, Advance Variation | |
| Jul 7, 2025 | Kowalski | 0–1 | Gahan M G | Macieja Memorial | Sicilian Defense: Najdorf Variation, Amsterdam Variation | |
| Jul 7, 2025 | Mizzi | 1–0 | Kowalski | Macieja Memorial | Queen's Gambit Declined | |
| Jul 7, 2025 | Padalka | 1–0 | Kowalski | Macieja Memorial | Queen's Pawn Game: Zukertort Variation | |
| Jul 7, 2025 | Kowalski | 0–1 | Chitre Arush | Macieja Memorial | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Jul 7, 2025 | Bachor | 1–0 | Kowalski | Macieja Memorial | English Opening: Symmetrical Variation | |
| Jul 7, 2025 | Kowalski | 1–0 | Rudzinska | Macieja Memorial | Caro-Kann Defense: Advance Variation, Short Variation | |
| Jul 7, 2025 | Klepek | ½–½ | Kowalski | Macieja Memorial | English Opening: Symmetrical Variation | |
| Jul 7, 2025 | Kowalski | 0–1 | Rekuc | Macieja Memorial | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Jul 7, 2025 | Klim | 0–1 | Kowalski | Macieja Memorial | Sicilian Defense: Taimanov Variation | |
| Jun 22, 2025 | Krol | 0–1 | Kowalski | DMPJ Ekstraliga 2025 | Sicilian Defense: Closed, Chameleon Variation | |
| Jun 17, 2025 | Warchol | 1–0 | Kowalski | DMPJ Ekstraliga 2025 | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Sep 22, 2024 | Kowalski | * | Tomsia | Szansa Rapid 2024 | ? | |
| Sep 22, 2024 | Kowalski | * | Etut | Szansa Rapid 2024 | ? | |
| Sep 22, 2024 | Kowalski | 1–0 | Gorecka | Szansa Rapid 2024 | French Defense: Tarrasch Variation, Morozevich Variation | |
| Sep 22, 2024 | Kowalski | 0–1 | Kutowski | Szansa Rapid 2024 | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Sep 22, 2024 | Krasenkow | 1–0 | Kowalski | Szansa Rapid 2024 | Sicilian Defense: Accelerated Dragon, Maróczy Bind, Gurgenidze Variation | |
| Sep 22, 2024 | Slusarczyk | ½–½ | Kowalski | Szansa Rapid 2024 | Queen's Pawn Game: Colle System | |
| Sep 22, 2024 | Serankou | 0–1 | Kowalski | Szansa Rapid 2024 | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Sep 22, 2024 | Chomczyk | 1–0 | Kowalski | Szansa Rapid 2024 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Sep 21, 2024 | Kowalski | * | Slusarczyk | new tournament description | ? | |
| Sep 21, 2024 | Kowalski | * | Siekanska | new tournament description | ? | |
| Sep 21, 2024 | Maciaszek | * | Kowalski | new tournament description | ? | |
| Sep 21, 2024 | Sabuk | 1–0 | Kowalski | new tournament description | Catalan Opening: Open Defense, Classical Line | |
| Sep 8, 2024 | Boruta | 0–1 | Kowalski | 2liga-2 | Bird Opening: Dutch Variation | |
| Sep 7, 2024 | Kowalski | ½–½ | Szymczak | 2liga-2 | Caro-Kann Defense: Tartakower Variation | |
| Sep 6, 2024 | Bartlomowicz | ½–½ | Kowalski | 2liga-3 | Sicilian Defense: Accelerated Dragon, Maróczy Bind, Gurgenidze Variation | |
| Sep 5, 2024 | Kowalski | ½–½ | Pietrzak | 2liga-2 | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| Sep 4, 2024 | Reichel | 0–1 | Kowalski | 2liga-2 | Queen's Pawn Game: Colle System | |
| Sep 3, 2024 | Kowalski | 0–1 | Maciol | 2liga-2 | French Defense: Tarrasch Variation, Open System, Main Line | |
| Sep 2, 2024 | Okrucinski | ½–½ | Kowalski | DMP II LIga 2024 1 | Queen's Gambit Declined: Three Knights Variation | |
| Sep 1, 2024 | Kowalski | 1–0 | Kwiatkowski | 2liga-2 | French Defense: Rubinstein Variation, Blackburne Defense | |