| Jun 27, 2026 | Kozlowski | 1–0 | Glek | Macieja Memorial | Sicilian Defense: Kalashnikov Variation | |
| Jun 27, 2026 | Maltsevskaya | 1–0 | Kozlowski | Macieja Memorial | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jun 27, 2026 | Kozlowski | 0–1 | Macieja | Macieja Memorial | Sicilian Defense: Kramnik Variation | |
| Jun 27, 2026 | Borischik | 0–1 | Kozlowski | Macieja Memorial | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jun 27, 2026 | Kozlowski | 1–0 | Korszanski | Macieja Memorial | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| Jun 27, 2026 | Rekuc | ½–½ | Kozlowski | Macieja Memorial | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jun 27, 2026 | Ostojski | 0–1 | Kozlowski | Macieja Memorial | Sicilian Defense: Closed, Traditional | |
| Jun 27, 2026 | Kozlowski | 0–1 | Mayorau | Macieja Memorial | Modern Defense: Standard Defense | |
| Jun 27, 2026 | Kozlowski | ½–½ | Baum | Macieja Memorial | English Opening: Agincourt Defense | |
| Jun 27, 2026 | Etel | 0–1 | Kozlowski | Macieja Memorial | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Mar 7, 2026 | Kozlowski | 1–0 | Szpar | AMP- Team | Caro-Kann Defense: Advance Variation | |
| Mar 7, 2026 | Suder | ½–½ | Kozlowski | AMP- Team | English Opening: Anglo-Indian Defense, Queen's Knight Variation | |
| Mar 6, 2026 | Kozlowski | 1–0 | Karut | AMP- Team | Zukertort Opening: Nimzo-Larsen Variation | |
| Mar 6, 2026 | Kozlowski | ½–½ | Baum | AMP-TEAM | Nimzo-Larsen Attack: Classical Variation | |
| Mar 6, 2026 | Kozlowski | 0–1 | Dixa | AMP- M | Sicilian Defense: Prins Variation | |
| Mar 6, 2026 | Kozlowski | 0–1 | Krynicki | AMP- M | Sicilian Defense: Prins Variation | |
| Mar 6, 2026 | Brzezinski | 1–0 | Kozlowski | AMP- M | English Opening | |
| Mar 5, 2026 | Kozlowski | 0–1 | Drozdowski | AMP-M | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Mar 5, 2026 | Jarzebowski | 0–1 | Kozlowski | AMP-M | Queen's Indian Defense: Classical Variation, Polugaevsky Gambit | |
| Mar 5, 2026 | Kozlowski | 1–0 | Myrmus | AMP- M | French Defense: Tarrasch Variation, Closed Variation, Main Line | |
| Mar 5, 2026 | Radecki | ½–½ | Kozlowski | AMP- M | Sicilian Defense | |
| Mar 5, 2026 | Kozlowski | 1–0 | Owoc | AMP- M | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Mar 5, 2026 | Daniszewski | 0–1 | Kozlowski | AMP- M | Sicilian Defense: Old Sicilian | |
| Oct 4, 2025 | Kozlowski | 0–1 | Licznerski | MP-rapid25 | Caro-Kann Defense: Advance Variation | |
| Oct 4, 2025 | Cyborowski | ½–½ | Kozlowski | MP-rapid25 | English Opening: Anglo-Indian Defense, Queen's Indian Formation | |
| Oct 4, 2025 | Kozlowski | 1–0 | Fiedorek | MP-rapid25 | Sicilian Defense: Prins Variation | |
| Oct 4, 2025 | Witczak | 0–1 | Kozlowski | MP-rapid25 | Nimzo-Indian Defense: St. Petersburg Variation | |
| Oct 4, 2025 | Kozlowski | 1–0 | Uhryn | MP-rapid25 | Sicilian Defense: Kramnik Variation | |
| Oct 4, 2025 | Lukasiewicz | 0–1 | Kozlowski | MP-rapid25 | Sicilian Defense: Kalashnikov Variation | |
| Oct 4, 2025 | Kozlowski | 0–1 | Slabaszewski | MP-rapid25 | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Sep 7, 2025 | Kozlowski | ½–½ | Liskiewicz | 2liga_2025_3 | Zukertort Opening: Nimzo-Larsen Variation | |
| Sep 6, 2025 | Kaminski | ½–½ | Kozlowski | 2liga_2025_3 | Sicilian Defense: Kalashnikov Variation | |
| Sep 5, 2025 | Kozlowski | 1–0 | Blazynski | 2liga_2025_3 | Caro-Kann Defense: Advance Variation | |
| Sep 4, 2025 | Ponikowski | 0–1 | Kozlowski | 2liga_2025_3 | Hungarian Opening: Indian Defense | |
| Sep 3, 2025 | Dabrowski | 1–0 | Kozlowski | 2liga_2025_3 | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Sep 1, 2025 | Kozlowski | 1–0 | Solnicki | 2liga_2025_3 | Sicilian Defense: French Variation, Westerinen Attack | |
| Sep 8, 2024 | Kozlowski | ½–½ | Szadkowski | DMP II LIga 2024 1 | Sicilian Defense: Prins Variation | |
| Sep 7, 2024 | Bednarek | 0–1 | Kozlowski | DMP II LIga 2024 1 | Queen's Pawn Game: Torre Attack, Gossip Variation | |
| Sep 6, 2024 | Kozlowski | ½–½ | Musial | DMP II LIga 2024 1 | Zukertort Opening: Sicilian Invitation | |
| Sep 5, 2024 | Flak | 0–1 | Kozlowski | 2liga-2 | Queen's Indian Defense: Classical Variation, Traditional Variation, Main Line | |
| Sep 4, 2024 | Kozlowski | ½–½ | Gumula | DMP II LIga 2024 1 | French Defense: Tarrasch Variation | |
| Sep 3, 2024 | Kozlowski | ½–½ | Sliwicki | DMP II LIga 2024 1 | Sicilian Defense: Kramnik Variation | |
| Sep 2, 2024 | Brozyna | 1–0 | Kozlowski | DMP II LIga 2024 1 | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Sep 1, 2024 | Gorkiewicz | ½–½ | Kozlowski | DMP II LIga 2024 1 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Aug 31, 2024 | Kozlowski | 1–0 | Zysko | DMP II LIga 2024 1 | Sicilian Defense: Kramnik Variation | |
| Aug 10, 2022 | Bogdanov | 1–0 | Kozlowski | open b | Indian Defense: Normal Variation | |
| Aug 9, 2022 | Kozlowski | 1–0 | Jaskiewicz | open b | Sicilian Defense: Prins Variation | |
| Aug 8, 2022 | Kozlowski | 1–0 | Jurkiewicz | open b | Sicilian Defense: Prins Variation | |
| Aug 7, 2022 | Kozlowski | ½–½ | Kaminski | open b | Sicilian Defense: Prins Variation | |
| Aug 7, 2022 | Wolagiewicz | 0–1 | Kozlowski | open b | Sicilian Defense: Taimanov Variation | |
| Aug 5, 2022 | Kozlowski | 1–0 | Grabowski | Irena Warakomska Memorial | B | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Aug 5, 2022 | Maj | ½–½ | Kozlowski | open b | Catalan Opening: Closed | |
| Aug 4, 2022 | Staroszczyk | 0–1 | Kozlowski | open b | Nimzo-Larsen Attack: English Variation | |
| Aug 3, 2022 | Kozlowski | 1–0 | Bartoszewicz | open b | Sicilian Defense: Prins Variation | |
| Dec 19, 2021 | Kozlowski | 1–0 | Sliwicka | ME rapid 2021 | Sicilian Defense: Boleslavsky Variation | |
| Dec 19, 2021 | Grabarczyk | 1–0 | Kozlowski | ME rapid 2021 | Catalan Opening: Closed | |
| Dec 19, 2021 | Ortega Ruiz | 1–0 | Kozlowski | ME rapid 2021 | Queen's Indian Defense: Classical Variation, Traditional Variation | |
| Dec 17, 2021 | Kozlowski | 0–1 | Piesik | ME Katowice 2021 | King's Indian Attack | |
| Dec 17, 2021 | Piesik | 0–1 | Kozlowski | ME Katowice 2021 | King's Indian Attack | |
| Dec 17, 2021 | Masternak | 1–0 | Kozlowski | ME Katowice 2021 | Sicilian Defense: Closed | |
| Jul 18, 2021 | Kaminski | 0–1 | Kozlowski | Warsaw Najdorf Festival | ? | |
| Jul 10, 2021 | Donchenko | 1–0 | Kozlowski | Warsaw Najdorf Festival | English Opening: Symmetrical Variation | |
| — | Kozlowski | 1–0 | Drygas | anderssen2025 | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| — | Kozlowski | 1–0 | Silich | anderssen2025 | Sicilian Defense: Godiva Variation | |
| — | Kozlowski | 0–1 | Piesik | anderssen2025 | Caro-Kann Defense: Advance Variation | |
| — | Malecki | ½–½ | Kozlowski | anderssen2025 | Sicilian Defense: McDonnell Attack | |
| — | Leskiewicz | 1–0 | Kozlowski | anderssen2025 | Zukertort Opening: Nimzo-Larsen Variation | |
| — | Przybylka | 0–1 | Kozlowski | anderssen2025 | Sicilian Defense: Alapin Variation, Barmen Defense | |
| — | Pietrzak | 0–1 | Kozlowski | anderssen2025 | Queen's Indian Defense: Classical Variation, Traditional Variation, Main Line | |
| — | Czarnecka | 1–0 | Kozlowski | anderssen2025 | Sicilian Defense: Kalashnikov Variation | |
