| Apr 28, 2026 | Wieczorek | 0–1 | Adhiban | Round 7: Wieczorek, Oskar - Adhiban, B. | King's Indian Attack: Symmetrical Defense | |
| Apr 27, 2026 | Korpa | ½–½ | Wieczorek | Round 5: Korpa, Bence - Wieczorek, Oskar | Indian Defense: Accelerated London System | |
| Apr 26, 2026 | Ivanisevic | 1–0 | Wieczorek | Round 4: Ivanisevic, Ivan - Wieczorek, Oskar | Philidor Defense: Lion Variation | |
| Apr 25, 2026 | Wieczorek | ½–½ | Teclaf | Round 3: Wieczorek, Oskar - Teclaf, Pawel | Zukertort Opening | |
| Apr 24, 2026 | Cacciola | 0–1 | Wieczorek | Round 1: Cacciola, Alfredo - Wieczorek, Oskar | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Apr 16, 2026 | Wieczorek | ½–½ | Sarana | Round 6: Wieczorek, Oskar - Sarana, Alexey | King's Indian Attack: Double Fianchetto | |
| Apr 16, 2026 | Wieczorek | ½–½ | Mastrovasilis | Round 2: Wieczorek, Oskar - Mastrovasilis, Dimitrios | King's Indian Attack, with e6 | |
| Feb 13, 2026 | Nesterenko | 0–1 | Wieczorek | blitz2026 | Sicilian Defense: Closed | |
| Feb 13, 2026 | Wieczorek | 1–0 | Dobrowolski | blitz2026 | French Defense: Tarrasch Variation, Modern System | |
| Feb 13, 2026 | Wieczorek | 0–1 | Krzywda | blitz2026 | King's Indian Attack: Symmetrical Defense | |
| Feb 13, 2026 | Wieczorek | 1–0 | Lechowski | blitz2026 | King's Indian Attack: Symmetrical Defense | |
| Feb 13, 2026 | Kiszkiel | 1–0 | Wieczorek | blitz2026 | Caro-Kann Defense: Alien Gambit | |
| Feb 13, 2026 | Wieczorek | 1–0 | Rusinski | blitz2026 | King's Indian Attack: Yugoslav Variation | |
| Feb 13, 2026 | Nagly | 1–0 | Wieczorek | blitz2026 | Sicilian Defense: Closed | |
| Feb 13, 2026 | Wieczorek | 1–0 | Janocha | blitz2026 | King's Indian Attack: Symmetrical Defense | |
| Feb 13, 2026 | Kulon | 0–1 | Wieczorek | blitz2026 | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Oct 12, 2024 | Wieczorek | 1–0 | Luch | Druzynowe Mistrzostwa Polski - Ekstraliga 2024 | King's Indian Attack | |
| Oct 10, 2024 | Wieczorek | ½–½ | Sernecki | Druzynowe Mistrzostwa Polski - Ekstraliga 2024 | Zukertort Opening | |
| Aug 15, 2024 | Wieczorek | ½–½ | Fromm | Round 9: Wieczorek, Oskar - Fromm, Marius | English Opening: King's English Variation, Four Knights Variation, Flexible Line | |
| Aug 14, 2024 | Gholami Orimi | 1–0 | Wieczorek | Round 8: Gholami Orimi, Mahdi - Wieczorek, Oskar | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Aug 12, 2024 | Pegno | 0–1 | Wieczorek | Round 5: Pegno, Mattia - Wieczorek, Oskar | Queen's Pawn Game: Barry Attack | |
| Aug 11, 2024 | Wieczorek | 1–0 | Lavrencic | Round 4: Wieczorek, Oskar - Lavrencic, Matic | Zukertort Opening | |
| Aug 10, 2024 | Alinasab | ½–½ | Wieczorek | Round 3: Alinasab, Mobina - Wieczorek, Oskar | Ruy Lopez: Exchange Variation, Normal Variation | |
| Aug 10, 2024 | Massazza | 0–1 | Wieczorek | Round 1: Massazza, Federico - Wieczorek, Oskar | Sicilian Defense: French Variation, Westerinen Attack | |
| Aug 10, 2024 | Wieczorek | ½–½ | Basso | Round 7: Wieczorek, Oskar - Basso, Pier Luigi | King's Indian Attack | |
| Aug 10, 2024 | Wieczorek | ½–½ | Gholami Orimi | Round 6: Wieczorek, Oskar - Gholami Orimi, Mahdi | King's Indian Attack: Sicilian Variation | |
| Aug 10, 2024 | Wieczorek | 1–0 | Solomon | Round 2: Wieczorek, Oskar - Solomon, Kenny | King's Indian Attack: Double Fianchetto | |
| Sep 26, 2023 | Svane | 1–0 | Wieczorek | Polish Ekstraliga | Grünfeld Defense: Exchange Variation | |
| Sep 18, 2023 | Szpar | ½–½ | Wieczorek | Polish Ekstraliga | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Jun 7, 2023 | Wieczorek | 0–1 | Moranda | Superliga Rapid | Sicilian Defense: French Variation | |
| Jun 7, 2023 | Neugebauer | 1–0 | Wieczorek | Superliga Rapid | Ruy Lopez: Closed, Martinez Variation | |
| Jun 7, 2023 | Koziorowicz | 0–1 | Wieczorek | Superliga Rapid | Sicilian Defense: Moscow Variation | |
| Mar 13, 2023 | Wieczorek | 1–0 | Iskandarov | European Individual Chess Championship 2023 | Sicilian Defense: Taimanov Variation | |
| Mar 12, 2023 | Gombocz | 0–1 | Wieczorek | European Championship | London System | |
| Mar 11, 2023 | Wieczorek | ½–½ | Chigaev | European Individual Chess Championship 2023 | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Mar 10, 2023 | Han | 0–1 | Wieczorek | European Individual Chess Championship 2023 | Benoni Defense: Fianchetto Variation, Hastings Defense, Main Line | |
| Mar 9, 2023 | Wieczorek | ½–½ | Pasztor | European Individual Chess Championship 2023 | Scotch Game: Mieses Variation | |
| Mar 8, 2023 | Garrido Outon | ½–½ | Wieczorek | European Individual Chess Championship 2023 | Ruy Lopez: Open, Bernstein Variation | |
| Mar 7, 2023 | Wieczorek | ½–½ | Hagner | European Individual Chess Championship 2023 | Ruy Lopez: Open | |
| Mar 6, 2023 | Manafov | ½–½ | Wieczorek | European Individual Chess Championship 2023 | English Opening: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense | |
| Mar 5, 2023 | Wieczorek | ½–½ | Baglan | European Individual Chess Championship 2023 | Nimzo-Indian Defense: Normal Variation | |
| Mar 4, 2023 | Aizenberg | ½–½ | Wieczorek | European Championship | Ruy Lopez: Open, Classical Defense | |
| Dec 18, 2022 | Wieczorek | 1–0 | Hulka | Katowice | Four Knights Game | |
| Dec 18, 2022 | Wieczorek | 1–0 | Zochowski | European Rapid Chess Championship 2022 | Pirc Defense: Classical Variation | |
| Dec 18, 2022 | Wieczorek | 0–1 | Donchenko | European Rapid Chess Championship 2022 | Caro-Kann Defense: Classical Variation | |
| Dec 18, 2022 | Toma | 0–1 | Wieczorek | European Rapid Chess Championship 2022 | Sicilian Defense: French Variation, Normal | |
| Dec 18, 2022 | Ziska | ½–½ | Wieczorek | European Rapid Chess Championship 2022 | Sicilian Defense: French Variation | |
| Dec 17, 2022 | Wieczorek | 1–0 | Peglau | Katowice | Caro-Kann Defense: Karpov Variation, Modern Main Line | |
| Dec 17, 2022 | Wieczorek | 1–0 | Polster | Katowice | Sicilian Defense: Najdorf Variation | |
| Dec 17, 2022 | Haug | 0–1 | Wieczorek | European Rapid Championship | Caro-Kann Defense: Accelerated Panov Attack | |
| Dec 17, 2022 | Navara | 1–0 | Wieczorek | European Rapid Chess Championship 2022 | Sicilian Defense: Najdorf Variation, English Attack | |
| Dec 17, 2022 | Chyzy | 1–0 | Wieczorek | European Rapid Chess Championship 2022 | Sicilian Defense: Closed | |
| Dec 16, 2022 | Wieczorek | 1–0 | Orlik | Katowice | Sicilian Defense: French Variation | |
| Dec 16, 2022 | Wieczorek | 1–0 | Niezhentsev | Katowice | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Dec 16, 2022 | Wieczorek | 1–0 | Reza | Katowice | Four Knights Game | |
| Dec 16, 2022 | Wieczorek | 0–1 | Raczek | European Blitz Chess Championship 2022 | Caro-Kann Defense: Tartakower Variation | |
| Dec 16, 2022 | Wieczorek | 1–0 | Lauda | European Blitz Chess Championship 2022 | Four Knights Game | |
| Dec 16, 2022 | Wieczorek | 1–0 | Fridman | European Blitz Chess Championship 2022 | Caro-Kann Defense: Classical Variation | |
| Dec 16, 2022 | Wieczorek | 0–1 | Moroni | European Blitz Chess Championship 2022 | King's Pawn Game: Maróczy Defense | |
| Dec 16, 2022 | Wieczorek | 0–1 | Piorun | European Blitz Chess Championship 2022 | Scandinavian Defense: Valencian Variation | |
| Dec 16, 2022 | Wieczorek | 1–0 | Czernek | European Blitz Chess Championship 2022 | Sicilian Defense: Moscow Variation | |
| Dec 16, 2022 | Wieczorek | 0–1 | Klekowski | European Blitz Chess Championship 2022 | Sicilian Defense: French Variation | |
| Dec 16, 2022 | Wieczorek | 1–0 | Haug | Katowice | Caro-Kann Defense: Tartakower Variation | |
| Dec 16, 2022 | Orlik | 0–1 | Wieczorek | Katowice | Benoni Defense | |
| Dec 16, 2022 | Niezhentsev | 0–1 | Wieczorek | Katowice | English Opening: Anglo-Indian Defense | |
| Dec 16, 2022 | Reza | ½–½ | Wieczorek | Katowice | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| Dec 16, 2022 | Raczek | 0–1 | Wieczorek | European Blitz Chess Championship 2022 | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| Dec 16, 2022 | Lauda | 0–1 | Wieczorek | European Blitz Chess Championship 2022 | Sicilian Defense: Smith-Morra Gambit Deferred | |
| Dec 16, 2022 | Fridman | 0–1 | Wieczorek | European Blitz Chess Championship 2022 | King's Indian Defense: Normal Variation, King's Knight Variation | |
| Dec 16, 2022 | Moroni | 0–1 | Wieczorek | European Blitz Chess Championship 2022 | London System | |
| Dec 16, 2022 | Piorun | 1–0 | Wieczorek | European Blitz Chess Championship 2022 | Trompowsky Attack | |
| Dec 16, 2022 | Czernek | 0–1 | Wieczorek | European Blitz Chess Championship 2022 | Sicilian Defense: Scheveningen Variation | |
| Dec 16, 2022 | Klekowski | 1–0 | Wieczorek | European Blitz Chess Championship 2022 | English Opening: Agincourt Defense | |
| Dec 16, 2022 | Haug | 1–0 | Wieczorek | Katowice | Sicilian Defense: Alapin Variation | |
| Oct 8, 2022 | Wieczorek | 1–0 | Raczek | PGNiG TERMIKA Polish Cup - Bydgoszcz | Qualification | Sicilian Defense: Portsmouth Gambit | |
| Oct 8, 2022 | Wieczorek | 1–0 | Kokoszczynski | PGNiG TERMIKA Polish Cup - Bydgoszcz | Qualification | Caro-Kann Defense: Tartakower Variation | |
| Oct 8, 2022 | Wieczorek | 1–0 | Lubczynski | PGNiG TERMIKA Polish Cup - Bydgoszcz | Qualification | Lion Defense: Lion's Jaw | |
| Oct 8, 2022 | Gniado | 0–1 | Wieczorek | PGNiG TERMIKA Polish Cup - Bydgoszcz | Qualification | Trompowsky Attack: Classical Defense, Big Center Variation | |
| Oct 8, 2022 | Paszewski | ½–½ | Wieczorek | PGNiG TERMIKA Polish Cup - Bydgoszcz | Qualification | English Opening: Symmetrical Variation, Botvinnik System Reversed, with Nf3 | |
| Oct 8, 2022 | Budrewicz | 1–0 | Wieczorek | PGNiG TERMIKA Polish Cup - Bydgoszcz | Qualification | Benoni Defense | |
| Oct 8, 2022 | Paprocki | 0–1 | Wieczorek | PGNiG TERMIKA Polish Cup - Bydgoszcz | Qualification | Benoni Defense | |
| Oct 8, 2022 | Gumularz | 0–1 | Wieczorek | PGNiG TERMIKA Polish Cup - Bydgoszcz | Qualification | King's Indian Defense: Orthodox Variation, Gligoric-Taimanov System | |
| Sep 11, 2022 | Kuzmicz | ½–½ | Wieczorek | Druzynowe Mistrzowa Polski Ekstraliga | Neo-Grünfeld Defense: Ultra-Delayed Exchange Variation | |
| Sep 4, 2022 | Leniart | ½–½ | Wieczorek | Druzynowe Mistrzowa Polski Ekstraliga | Caro-Kann Defense: Endgame Offer | |
| Jul 9, 2022 | Wieczorek | 1–0 | Bukala | PGNiG TERMIKA Puchar Polski | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Jul 9, 2022 | Wieczorek | 0–1 | Mondrzycki | PGNiG TERMIKA Puchar Polski | Sicilian Defense: Classical Variation | |
| Jul 9, 2022 | Wieczorek | 1–0 | Chylewski | PGNiG TERMIKA Puchar Polski | Four Knights Game | |
| Jul 9, 2022 | Wieczorek | 0–1 | Gumularz | PGNiG TERMIKA Puchar Polski | Four Knights Game | |
| Jul 9, 2022 | Krawczyk | 0–1 | Wieczorek | PGNiG TERMIKA Puchar Polski | Sicilian Defense: French Variation | |
| Jul 9, 2022 | Leniart | 0–1 | Wieczorek | PGNiG TERMIKA Puchar Polski | Sicilian Defense: Scheveningen Variation, Fianchetto Variation | |
| Apr 6, 2022 | Wieczorek | ½–½ | Lutsko | EICC 22 | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Apr 5, 2022 | Iturrizaga Bonelli | 1–0 | Wieczorek | European Championship | English Opening: Symmetrical Variation, Botvinnik System Reversed, with Nf3 | |
| Apr 4, 2022 | Durarbayli | 1–0 | Wieczorek | European Individual Chess Championship 2022 | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Apr 3, 2022 | Wieczorek | ½–½ | Yilmaz | European Individual Chess Championship 2022 | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Apr 2, 2022 | Wieczorek | 1–0 | Pechac | EICC 22 | Four Knights Game: Spanish Variation, Rubinstein Variation | |
| Apr 2, 2022 | Stremavicius | 0–1 | Wieczorek | EICC 22 | East Indian Defense | |
| Mar 29, 2022 | Wieczorek | ½–½ | Donchenko | EICC 22 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Mar 28, 2022 | Franc | 0–1 | Wieczorek | European Individual Chess Championship | Sicilian Defense: Scheveningen Variation, Classical Variation | |
| Mar 13, 2022 | Wieczorek | ½–½ | Kanarek | Polish Rapid Ekstraliga | Sicilian Defense: Dragon Variation, Classical Variation, Grigoriev Variation | |
| Mar 13, 2022 | Wieczorek | 0–1 | Gdanski | Polish Rapid Ekstraliga | French Defense: Tarrasch Variation, Open System, Main Line | |