| Jun 26, 2026 | Feher | 1–0 | Witczak | Round 11: Feher, Botond - Witczak, Borys | King's Indian Attack, with e6 | |
| Jun 25, 2026 | Witczak | 1–0 | Yessengali | Round 10: Witczak, Borys - Yessengali, Adizhan | Nimzo-Indian Defense: Normal Variation | |
| Jun 24, 2026 | Kavazov | ½–½ | Witczak | Round 9: Kavazov, Kristijan - Witczak, Borys | Caro-Kann Defense: Exchange Variation | |
| Jun 23, 2026 | Witczak | 0–1 | La Barbera | U16 Open | Ruy Lopez: Morphy Defense, Classical Defense Deferred | |
| Jun 22, 2026 | Witczak | 0–1 | Marin Ferragut | Round 7: Witczak, Borys - Marin Ferragut, Pau | Sicilian Defense: Najdorf Variation | |
| Jun 20, 2026 | Sherla Prathamesh | 0–1 | Witczak | Round 6: Sherla Prathamesh - Witczak, Borys | Zukertort Opening: Nimzo-Larsen Variation | |
| Jun 19, 2026 | Moses | 0–1 | Witczak | Round 5: Moses, Neil - Witczak, Borys | Sicilian Defense: Najdorf Variation, English Attack | |
| Jun 18, 2026 | Witczak | 1–0 | Krakops | Round 4: Witczak, Borys - Krakops, Martijs | Slav Defense: Chebanenko Variation | |
| Jun 17, 2026 | Tudor | 1–0 | Witczak | Round 3: Tudor, Henry Edward - Witczak, Borys | Caro-Kann Defense: Exchange Variation | |
| Jun 16, 2026 | Witczak | 1–0 | Albu | Round 2: Witczak, Borys - Albu, Vlad | Sicilian Defense: Najdorf Variation | |
| Jun 15, 2026 | Usov | 1–0 | Witczak | Round 1: Usov, Aleksandr E. - Witczak, Borys | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| May 29, 2026 | Witczak | 0–1 | Butkiewicz | Druzynowe Mistrzostwa Polski Juniorow - I Liga 2026 | French Defense: Tarrasch Variation, Chistyakov Defense | |
| May 28, 2026 | Hlubek | 0–1 | Witczak | Druzynowe Mistrzostwa Polski Juniorow - I Liga 2026 | King's Indian Attack, with e6 | |
| May 27, 2026 | Witczak | 1–0 | Demianenko | Druzynowe Mistrzostwa Polski Juniorow - I Liga 2026 | Nimzo-Indian Defense: Rubinstein System | |
| May 26, 2026 | Witczak | 1–0 | Modzelewski | Druzynowe Mistrzostwa Polski Juniorow - I Liga 2026 | Old Indian Defense: Ukrainian Variation | |
| May 25, 2026 | Staniczek | 1–0 | Witczak | Druzynowe Mistrzostwa Polski Juniorow - I Liga 2026 | Caro-Kann Defense: Tartakower Variation | |
| May 24, 2026 | Witczak | ½–½ | Lesik | Druzynowe Mistrzostwa Polski Juniorow - I Liga 2026 | Nimzo-Indian Defense: Normal Variation | |
| May 23, 2026 | Uhryn | 0–1 | Witczak | Druzynowe Mistrzostwa Polski Juniorow - I Liga 2026 | Indian Defense: Knights Variation | |
| May 22, 2026 | Witczak | 1–0 | Werblinski | Druzynowe Mistrzostwa Polski Juniorow - I Liga 2026 | Nimzo-Indian Defense | |
| May 21, 2026 | Krogulski | 1–0 | Witczak | DMPJ - I Liga 2026 | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Apr 19, 2026 | Witczak | 1–0 | Duda | EICC 2026 | Scandinavian Defense: Bronstein Variation | |
| Apr 18, 2026 | Pousada Garcia | 1–0 | Witczak | EIIC 2026 | Sicilian Defense: Chekhover Variation | |
| Apr 16, 2026 | Witczak | ½–½ | Golsta | EICC 2026 | Sicilian Defense: Accelerated Dragon, Maróczy Bind, Breyer Variation | |
| Apr 15, 2026 | Warchol | 1–0 | Witczak | EIIC 2026 | Sicilian Defense: Najdorf Variation | |
| Apr 14, 2026 | Witczak | 1–0 | Amiridou | EICC 2026 | King's Indian Defense: Makogonov Variation | |
| Apr 13, 2026 | Ioannidis | 1–0 | Witczak | EIIC 2026 | English Opening: Agincourt Defense | |
| Apr 12, 2026 | Witczak | 0–1 | Suleymanli | EIIC 2026 | Nimzo-Indian Defense: St. Petersburg Variation | |
| Apr 10, 2026 | Johansson | 1–0 | Witczak | EICC 2026 | English Opening: Agincourt Defense | |
| Apr 9, 2026 | Witczak | 1–0 | Mkrtchyan | EIIC 2026 | Queen's Gambit Declined: Queen's Knight Variation | |
| Apr 8, 2026 | Kozera | 0–1 | Witczak | EICC 2026 | Sicilian Defense: Najdorf Variation | |
| Apr 7, 2026 | Witczak | 0–1 | Quparadze | EICC 2026 | Nimzo-Indian Defense: Normal Variation | |
| Mar 15, 2026 | Pycinski | ½–½ | Witczak | Indywidualne Mistrzostwa Polski Juniorow 2026 - C16 | Nimzo-Larsen Attack: Modern Variation | |
| Mar 14, 2026 | Witczak | 1–0 | Lechowski | Indywidualne Mistrzostwa Polski Juniorow 2026 - C16 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Mar 13, 2026 | Klim | 0–1 | Witczak | Indywidualne Mistrzostwa Polski Juniorow 2026 - C16 | Caro-Kann Defense: Tartakower Variation | |
| Mar 12, 2026 | Witczak | ½–½ | Smolinski | Indywidualne Mistrzostwa Polski Juniorow 2026 - C16 | Sicilian Defense: Classical Variation, Anti-Sozin Variation | |
| Mar 11, 2026 | Dziuba | 0–1 | Witczak | Indywidualne Mistrzostwa Polski Juniorow 2026 - C16 | Sicilian Defense: Sozin Attack, Flank Variation | |
| Mar 10, 2026 | Witczak | ½–½ | Futyma | Indywidualne Mistrzostwa Polski Juniorow 2026 - C16 | English Defense | |
| Mar 10, 2026 | Niezhentsev | 1–0 | Witczak | Indywidualne Mistrzostwa Polski Juniorow 2026 - C16 | Sicilian Defense: Modern Variations | |
| Mar 9, 2026 | Witczak | 1–0 | Gora | Indywidualne Mistrzostwa Polski Juniorow 2026 - C16 | King's Indian Defense: Normal Variation | |
| Mar 8, 2026 | Jamrozik | ½–½ | Witczak | Indywidualne Mistrzostwa Polski Juniorow 2026 - C16 | Sicilian Defense: Moscow Variation | |
| Oct 4, 2025 | Witczak | 0–1 | Kozlowski | MP-rapid25 | Nimzo-Indian Defense: St. Petersburg Variation | |
| Oct 4, 2025 | Kucza | 0–1 | Witczak | MP-rapid25 | Sicilian Defense: Najdorf Variation | |
| Oct 4, 2025 | Witczak | 0–1 | Nasuta | MP-rapid25 | Slav Defense: Exchange Variation | |
| Sep 20, 2025 | Witczak | * | Burlov | Szansa25 | ? | |
| Sep 20, 2025 | Malicka | * | Witczak | Szansa25 | ? | |
| Sep 20, 2025 | Witczak | * | Eysmont | Szansa25 | ? | |
| Sep 20, 2025 | Gruca | * | Witczak | Szansa25 | ? | |
| Sep 20, 2025 | Witczak | * | Brudzynski | Szansa25 | ? | |
| Sep 20, 2025 | Redzimski | * | Witczak | Szansa25 | ? | |
| Sep 20, 2025 | Witczak | * | Racis | Szansa25 | ? | |
| Sep 20, 2025 | Chacinski Osorio | * | Witczak | Szansa25 | ? | |
| Sep 20, 2025 | Witczak | * | Malicka | Szansa25 | ? | |
| Sep 20, 2025 | Rajlich | 1–0 | Witczak | Szansa25 | Indian Defense: Knights Variation | |
| Jul 16, 2025 | Witczak | 1–0 | Kowalski | Najdorf Memorial | Nimzo-Indian Defense: Normal Variation | |
| Jul 16, 2025 | Wieckowski | ½–½ | Witczak | Najdorf Memorial | Sicilian Defense | |
| Jul 15, 2025 | Witczak | 1–0 | Siennicki | Najdorf Memorial | Nimzo-Indian Defense: Normal Variation | |
| Jul 14, 2025 | Sanz Losada | 0–1 | Witczak | Najdorf Memorial | Nimzo-Indian Defense: Classical Variation | |
| Jul 13, 2025 | Harshit Amarnani | 1–0 | Witczak | Najdorf Memorial | Sicilian Defense: Moscow Variation | |
| Jul 13, 2025 | Witczak | 0–1 | Jarzebowski | Najdorf Memorial | King's Indian Defense: Makogonov Variation | |
| Jul 11, 2025 | Bartodziej | 1–0 | Witczak | Najdorf Memorial | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Jul 10, 2025 | Witczak | ½–½ | Flis | Najdorf Memorial | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Jul 8, 2025 | Rekuc | 1–0 | Witczak | Najdorf Memorial | Bogo-Indian Defense: Grünfeld Variation | |
| Jun 22, 2025 | Pekala | ½–½ | Witczak | DMPJ 1 liga 2025 | Sicilian Defense: Lasker-Dunne Attack | |
| Jun 21, 2025 | Witczak | 1–0 | Rutkowski | DMPJ 1 liga 2025 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Jun 20, 2025 | Witczak | ½–½ | Rozanski | DMPJ 1 liga 2025 | Slav Defense: Exchange Variation | |
| Jun 19, 2025 | Diachek | 1–0 | Witczak | DMPJ 1 liga 2025 | Sicilian Defense: Moscow Variation | |
| Jun 18, 2025 | Witczak | 1–0 | Was | DMPJ 1 liga 2025 | Nimzo-Indian Defense: Normal Variation | |
| Jun 17, 2025 | Marcinkowski | 0–1 | Witczak | DMPJ 1 liga 2025 | Nimzo-Indian Defense: Normal Variation, Botvinnik System | |
| Jun 16, 2025 | Smejda | 0–1 | Witczak | DMPJ 1 liga 2025 | Sicilian Defense: Moscow Variation | |
| Jun 15, 2025 | Witczak | 1–0 | Piotrowski | DMPJ 1 liga 2025 | Queen's Gambit Declined: Queen's Knight Variation | |
| Jun 14, 2025 | Mrozowski | 0–1 | Witczak | DMPJ 1 liga 2025 | Sicilian Defense: Najdorf Variation, Opocensky Variation, Traditional Line | |
| Jun 2, 2025 | Cieslar | 0–1 | Witczak | Open | Caro-Kann Defense: Exchange Variation | |
| May 31, 2025 | Rutkowski | 0–1 | Witczak | Open | English Opening: Mikenas-Carls Variation | |
| May 31, 2025 | Witczak | 0–1 | Golawski | Open | Slav Defense: Exchange Variation | |
| May 31, 2025 | Witczak | 0–1 | Lajdamik | Open | Nimzo-Indian Defense: Normal Variation | |
| May 31, 2025 | Blaszczyk | 1–0 | Witczak | Open | Sicilian Defense: Modern Variations | |
| May 31, 2025 | Witczak | 1–0 | Siekanska | Open | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| May 31, 2025 | Bogdanov | 1–0 | Witczak | Open-1 | Sicilian Defense: Alapin Variation | |
| May 31, 2025 | Witczak | ½–½ | Duda | Open | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| May 31, 2025 | Orzechowski | 0–1 | Witczak | Open | Sicilian Defense: Najdorf Variation, English Attack | |
| Oct 31, 2024 | Schneider | 1–0 | Witczak | Round 6: Schneider, Ilja - Witczak, Borys | English Opening: Neo-Catalan | |
| Aug 25, 2024 | Witczak | ½–½ | Napieralski | rubinstein24-a1 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Aug 24, 2024 | Hetzer | 0–1 | Witczak | rubinstein24-a1 | English Opening: Mikenas-Carls Variation | |
| Aug 23, 2024 | Witczak | ½–½ | Wodniczak | rubinstein24-a1 | Nimzo-Indian Defense: Classical Variation, Berlin Variation, Macieja System | |
| Aug 22, 2024 | Pieczulis | 1–0 | Witczak | rubinstein24-a1 | Yusupov-Rubinstein System | |
| Aug 21, 2024 | Witczak | 0–1 | Jasiulewicz | rubinstein24-a1 | Sicilian Defense: Najdorf Variation | |
| Aug 20, 2024 | Kudlak | 0–1 | Witczak | rubinstein24-a1 | Caro-Kann Defense | |
| Aug 19, 2024 | Witczak | 0–1 | Marszalek | rubinstein24-a1 | Queen's Gambit Declined: Charousek Variation | |
| Aug 18, 2024 | Liskiewicz | 1–0 | Witczak | rubinstein24-a1 | Nimzo-Indian Defense: Normal Variation | |
| Aug 17, 2024 | Witczak | 1–0 | Rozentalis | 60. Jubileuszowy Miedzynarodowy Festiwal Szachowy Akiby Rubinsteina - OPEN A | Nimzo-Indian Defense: Classical Variation | |
| Jun 30, 2024 | Stefanova | 1–0 | Witczak | Round 9: Stefanova, Antoaneta - Witczak, Borys | Bogo-Indian Defense: Grünfeld Variation | |
| Jun 29, 2024 | Witczak | 1–0 | Papasimakopoulos | Round 8: Witczak, Borys - Papasimakopoulos, Alexandros | Nimzo-Indian Defense: Classical Variation, Berlin Variation, Macieja System | |
| Jun 28, 2024 | Mickiewicz | 0–1 | Witczak | Round 7: Mickiewicz, Piotr - Witczak, Borys | Caro-Kann Defense: Tartakower Variation | |
| Jun 25, 2024 | Witczak | 0–1 | Gelle | Round 4: Witczak, Borys - Gelle, Istvan | Slav Defense: Exchange Variation | |
| Jun 23, 2024 | Witczak | 0–1 | Mostbauer | Round 2: Witczak, Borys - Mostbauer, Florian | Tarrasch Defense | |
| Jun 20, 2023 | Witczak | 1–0 | Zalewski | DMPJ - I Liga 2023 | Slav Defense: Exchange Variation | |
| Jun 19, 2023 | Baran | 0–1 | Witczak | DMPJ - I Liga 2023 | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Jun 18, 2023 | Dobosiewicz | ½–½ | Witczak | DMPJ - I Liga 2023 | King's Indian Attack: Symmetrical Defense | |
| Jun 17, 2023 | Niesyt | ½–½ | Witczak | DMPJ - I Liga 2023 | Sicilian Defense: Najdorf Variation, Zagreb Variation | |
| Jun 16, 2023 | Niesyt | ½–½ | Witczak | DMPJ - I Liga 2023 | Sicilian Defense: Najdorf Variation, Zagreb Variation | |