| Apr 20, 2026 | Stepien | * | Czepczynski | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | Queen's Pawn Game: Modern Defense | |
| Apr 19, 2026 | Szymanski | 0–1 | Czepczynski | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | Modern Defense: Averbakh System | |
| Apr 18, 2026 | Czepczynski | 1–0 | Chromicz | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | English Opening: King's English Variation, Reversed Sicilian | |
| Apr 17, 2026 | Czepczynski | 0–1 | Hoffmann | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | English Opening: Anglo-Grünfeld Defense | |
| Apr 17, 2026 | Kiwilsza | 1–0 | Czepczynski | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | Modern Defense | |
| Apr 16, 2026 | Czepczynski | 0–1 | Czajkowski | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | English Opening: Symmetrical Variation, Mecking Variation | |
| Apr 15, 2026 | Ziobrowska | 0–1 | Czepczynski | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | Modern Defense: Averbakh System | |
| Apr 15, 2026 | Czepczynski | 0–1 | Slawinski | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | English Opening: Symmetrical Variation, Three Knights, Fianchetto Variation | |
| Apr 14, 2026 | Lisicki | 0–1 | Czepczynski | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | Modern Defense | |
| Aug 25, 2024 | Czepczynski | ½–½ | Galyga | 60. Jubileuszowy Mi?dzynarodowy Festiwal Szachowy Akiby Rubinsteina - OPEN C | Dutch Defense: Rubinstein Variation | |
| Aug 24, 2024 | Kawula | ½–½ | Czepczynski | 60. Jubileuszowy Mi?dzynarodowy Festiwal Szachowy Akiby Rubinsteina - OPEN C | King's Indian Defense: Sämisch Variation | |
| Aug 22, 2024 | Chubar | 1–0 | Czepczynski | 60. Jubileuszowy Miedzynarodowy Festiwal Szachowy Akiby Rubinsteina - OPEN C | Zukertort Opening: Kingside Fianchetto | |
| Aug 20, 2024 | Czepczynski | 0–1 | Marszk | 60. Jubileuszowy Mi?dzynarodowy Festiwal Szachowy Akiby Rubinsteina - OPEN C | King's Indian Defense: Normal Variation | |
| Aug 18, 2024 | Friml | 1–0 | Czepczynski | 60. Jubileuszowy Mi?dzynarodowy Festiwal Szachowy Akiby Rubinsteina - OPEN C | Modern Defense: Standard Defense | |
| Apr 21, 2024 | Mencfel | 1–0 | Czepczynski | MPA 1820 2024 | Queen's Pawn Game | |
| Apr 20, 2024 | Czepczynski | ½–½ | Adamowicz | MPA 1820 2024 | English Opening: Symmetrical Variation, Full Symmetry Line | |
| Apr 19, 2024 | Hombek | 0–1 | Czepczynski | MPA 1820 2024 | Zukertort Opening | |
| Apr 17, 2024 | Czepczynski | 1–0 | Pierzak | MPA 1820 2024 | English Opening: Carls-Bremen System | |
| Apr 16, 2024 | Haluja | 1–0 | Czepczynski | MPA 1820 2024 | Pirc Defense: Austrian Attack, Weiss Variation | |
| Apr 15, 2024 | Czepczynski | ½–½ | Klonowski | MPA 1820 2024 | English Opening: Anglo-Indian Defense, Hedgehog System | |
| Apr 14, 2024 | Przytocki | 0–1 | Czepczynski | MPA 1820 2024 | Pirc Defense: Austrian Attack, Weiss Variation | |
| Apr 13, 2024 | Czepczynski | 1–0 | Dykier | MPA 1820 2024 | English Opening: Anglo-Indian Defense, Hedgehog System | |
| — | Czepczynski | 1–0 | Olszowski | rubinsteinE | English Opening: Symmetrical Variation, Rubinstein Variation | |
| — | Czepczynski | 1–0 | Bartczak | rubinsteinE | English Opening: King's English Variation, Two Knights Variation, Keres Variation | |
| — | Czepczynski | 1–0 | Czaplinski | rubinsteinE | English Opening: Symmetrical Variation, Mecking Variation | |
| — | Czepczynski | 0–1 | Mazalon | rubinsteinE | King's Indian Defense: Normal Variation | |
| — | Biel | 0–1 | Czepczynski | rubinsteinE | Modern Defense: Standard Defense | |
| — | Stepien | 1–0 | Czepczynski | rubinsteinE | Modern Defense: Standard Defense | |
| — | Sielicki | 1–0 | Czepczynski | rubinsteinE | Modern Defense: Pseudo-Austrian Attack | |
| — | Milanowski | ½–½ | Czepczynski | rubinsteinE | Queen's Pawn Game: Modern Defense | |
| — | Wziatek | * | Czepczynski | rubinsteinE | English Opening: King's English Variation, Reversed Sicilian | |
