| Mar 22, 2026 | Murawski | ½–½ | Mazurkiewicz | Round 8: Murawski, Jan - Mazurkiewicz, Michal | Modern Defense | |
| Mar 21, 2026 | Mazurkiewicz | 1–0 | Moreby | Round 7: Mazurkiewicz, Michal - Moreby, James | French Defense: King's Indian Attack | |
| Jan 11, 2026 | Badacsonyi | 0–1 | Mazurkiewicz | Round 4: Badacsonyi, Stanley - Mazurkiewicz, Michal | King's Indian Defense: Semi-Averbakh System | |
| Jan 10, 2026 | Mazurkiewicz | 0–1 | Rakotomaharo | Round 3: Mazurkiewicz, Michal - Rakotomaharo, Fy Antenaina | Nimzo-Larsen Attack: Classical Variation | |
| Nov 2, 2025 | Bowcott-Terry | ½–½ | Mazurkiewicz | Round 2: Bowcott-Terry, Finlay - Mazurkiewicz, Michal | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Nov 1, 2025 | Mazurkiewicz | 0–1 | Maroroa Jones | Round 1: Mazurkiewicz, Michal - Maroroa Jones, Gawain C B | Sicilian Defense: Old Sicilian | |
| Sep 13, 2025 | Mazurkiewicz | 1–0 | Golenia | I Liga 6-10 | King's Indian Attack | |
| Sep 11, 2025 | Mazurkiewicz | ½–½ | Siwiec | I Liga 6-10 | Sicilian Defense: Modern Variations | |
| Sep 10, 2025 | Majocha | 0–1 | Mazurkiewicz | I Liga 6-10 | King's Indian Defense: Fianchetto Variation, Yugoslav Variation, Exchange Line | |
| Sep 9, 2025 | Mazurkiewicz | ½–½ | Kejna | I Liga 6-10 | Sicilian Defense: Old Sicilian | |
| Sep 8, 2025 | Kyc | ½–½ | Mazurkiewicz | I Liga 6-10 | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Sep 7, 2025 | Mazurkiewicz | ½–½ | Nagly | I Liga 6-10 | Zukertort Opening: Sicilian Invitation | |
| Sep 6, 2025 | Skawinski | ½–½ | Mazurkiewicz | I Liga 1-5 | King's Indian Defense: Fianchetto Variation, Yugoslav System | |
| Apr 6, 2025 | Mazurkiewicz | 1–0 | Sterck | Round 8: Mazurkiewicz, Michal - Sterck, Arno | King's Knight Opening: Normal Variation | |
| Apr 5, 2025 | Mazurkiewicz | ½–½ | Kacprzak | Round 7: Mazurkiewicz, Michal - Kacprzak, Kacper | Sicilian Defense: Modern Variations | |
| Feb 16, 2025 | Mazurkiewicz | 1–0 | Chan | Round 6: Mazurkiewicz, Michal - Chan, Sheng Liang Bernard | Sicilian Defense: Modern Variations | |
| Feb 15, 2025 | Pal | 0–1 | Mazurkiewicz | Round 5: Pal, Rohan - Mazurkiewicz, Michal | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Sep 7, 2024 | Kumala | 0–1 | Mazurkiewicz | DMP II LIga 2024 1 | Philidor Defense: Lion Variation, Shirov Gambit | |
| Sep 6, 2024 | Chojnacki | 0–1 | Mazurkiewicz | DMP II LIga 2024 1 | Indian Defense | |
| Sep 5, 2024 | Mazurkiewicz | 1–0 | Backiel | DMP II LIga 2024 1 | Sicilian Defense: Old Sicilian | |
| Sep 4, 2024 | Mazurkiewicz | ½–½ | Tustanowski | DMP II LIga 2024 1 | Caro-Kann Defense: Breyer Variation | |
| Sep 3, 2024 | Mazurkiewicz | 1–0 | Solnicki | DMP II LIga 2024 1 | Petrov's Defense | |
| Sep 2, 2024 | Skomial | ½–½ | Mazurkiewicz | 2liga-2 | Caro-Kann Defense: Classical Variation | |
| Sep 1, 2024 | Mazurkiewicz | ½–½ | Kazmierowski | DMP II LIga 2024 1 | King's Knight Opening: Normal Variation | |
| Aug 31, 2024 | Stysiak | 0–1 | Mazurkiewicz | DMP II LIga 2024 1 | King's Indian Defense: Sämisch Variation, Sämisch Gambit | |
| Dec 10, 2022 | Mazurkiewicz | 0–1 | Piesik | Chron PESEL pl OPEN C | Caro-Kann Defense: Breyer Variation | |
| Dec 10, 2022 | Mazurkiewicz | * | Macura | Chron PESEL pl OPEN C | ? | |
| Dec 10, 2022 | Marszalek | 0–1 | Mazurkiewicz | Chron PESEL pl OPEN C | Czech Defense | |
| Oct 8, 2022 | Mazurkiewicz | 1–0 | Licznerski | PGNiG TERMIKA Polish Cup - Bydgoszcz | Qualification | Caro-Kann Defense: Breyer Variation | |
| Oct 8, 2022 | Mazurkiewicz | 0–1 | Plichta | PGNiG TERMIKA Polish Cup - Bydgoszcz | Qualification | French Defense: King's Indian Attack | |
| Oct 8, 2022 | Seemann | 1–0 | Mazurkiewicz | PGNiG TERMIKA Polish Cup - Bydgoszcz | Qualification | Czech Defense | |
| Jul 9, 2022 | Mazurkiewicz | 1–0 | Maciejczak | PGNiG TERMIKA Puchar Polski | Caro-Kann Defense: Breyer Variation | |
| Jul 9, 2022 | Warakomski | 1–0 | Mazurkiewicz | PGNiG TERMIKA Puchar Polski | Czech Defense | |
| Dec 19, 2021 | Diermair | 1–0 | Mazurkiewicz | ME rapid 2021 | Indian Defense: Budapest Defense, Adler Variation | |
| Dec 18, 2021 | Mazurkiewicz | ½–½ | Skawinski | ME rapid 2021 | King's Knight Opening | |
| Dec 17, 2021 | Mazurkiewicz | 0–1 | Klekowski | ME Katowice 2021 | Sicilian Defense: Old Sicilian | |
| Dec 17, 2021 | Mazurkiewicz | 1–0 | Fritz | ME Katowice 2021 | Sicilian Defense: Modern Variations | |
| Dec 17, 2021 | Mazurkiewicz | 0–1 | Gumularz | EBCC | ? | |
| Dec 17, 2021 | Mazurkiewicz | 1–0 | Warchol | ME Katowice 2021 | Sicilian Defense: French Variation | |
| Dec 17, 2021 | Fritz | 1–0 | Mazurkiewicz | ME Katowice 2021 | Czech Defense | |
| Dec 17, 2021 | Gumularz | 1–0 | Mazurkiewicz | EBCC | Czech Defense | |
| Dec 17, 2021 | Warchol | 1–0 | Mazurkiewicz | ME Katowice 2021 | Czech Defense | |
