| Apr 17, 2026 | Zielinski | ½–½ | Mostowski | new tournament description | Sicilian Defense: Chekhover Variation | |
| Apr 16, 2026 | Rzewucki | ½–½ | Zielinski | new tournament description | French Defense: Advance Variation, Wade Variation | |
| Apr 14, 2026 | Zielinski | 0–1 | Zgadzaj | new tournament description | Modern Defense: Averbakh System | |
| Apr 14, 2026 | Bar | * | Zielinski | new tournament description | ? | |
| Apr 13, 2026 | Gabrys | 1–0 | Zielinski | new tournament description | French Defense: King's Indian Attack | |
| Apr 12, 2026 | Zielinski | ½–½ | Motyl | new tournament description | Caro-Kann Defense: Accelerated Panov Attack, Modern Variation | |
| Apr 11, 2026 | Zysko | 1–0 | Zielinski | new tournament description | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Nov 26, 2025 | Zielinski | ½–½ | Richards | European Amateur Ch U2000 | French Defense: Winawer Variation, Advance Variation | |
| Nov 11, 2025 | Zielinski | 0–1 | Baidar | Round 7: Zielinski, Olgierd - Baidar, Buyandelger | English Opening: King's English Variation, Two Knights Variation, Smyslov System | |
| Nov 9, 2025 | Zielinski | 0–1 | Maslar | Round 5: Zielinski, Olgierd - Maslar, Aleksa | Sicilian Defense: Closed | |
| Nov 1, 2025 | Khurelbaatar | 1–0 | Zielinski | Round 11: Khurelbaatar, Duudei - Zielinski, Olgierd | King's Pawn Game | |
| Oct 31, 2025 | Zielinski | 0–1 | Cmiel | Round 10: Zielinski, Olgierd - Cmiel, Thorsten | Pterodactyl Defense | |
| Oct 30, 2025 | Grados | ½–½ | Zielinski | Round 9: Grados, Luis - Zielinski, Olgierd | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Oct 29, 2025 | Zielinski | ½–½ | Nikolaidis | Round 8: Zielinski, Olgierd - Nikolaidis, Konstantinos | French Defense: Steiner Variation | |
| Oct 28, 2025 | Estrada Nieto | 1–0 | Zielinski | Round 7: Estrada Nieto, Julian - Zielinski, Olgierd | French Defense: Tarrasch Variation, Chistyakov Defense | |
| Oct 26, 2025 | Zielinski | ½–½ | Kantorik | Round 6: Zielinski, Olgierd - Kantorik, Marian | French Defense: Exchange Variation, Monte Carlo Variation | |
| Oct 25, 2025 | Dijkstra | 0–1 | Zielinski | Round 5: Dijkstra, Matthijs - Zielinski, Olgierd | English Opening: King's English Variation | |
| Oct 24, 2025 | Zielinski | ½–½ | Dosov | Round 4: Zielinski, Olgierd - Dosov, Nurlan | Sicilian Defense: Kramnik Variation | |
| Oct 23, 2025 | Bayramov | ½–½ | Zielinski | Round 3: Bayramov, Vugar - Zielinski, Olgierd | Semi-Slav Defense: Chigorin Defense | |
| Oct 22, 2025 | Zielinski | 1–0 | Colangeli | Round 2: Zielinski, Olgierd - Colangeli, Claudio | Caro-Kann Defense: Accelerated Panov Attack, Modern Variation | |
| Oct 21, 2025 | Tikzhanov | 1–0 | Zielinski | Round 1: Tikzhanov, Yerlan - Zielinski, Olgierd | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Sep 6, 2025 | Zielinski | 1–0 | Czernecki | 2 liga 2025 2 | Nimzo-Indian Defense: Classical Variation, Noa Variation | |
| Sep 5, 2025 | Zielinski | 1–0 | Walski | 2liga_2025_3 | Semi-Slav Defense: Marshall Gambit | |
| Sep 3, 2025 | Wolak | 1–0 | Zielinski | 2 liga 2025 2 | Sicilian Defense: Old Sicilian | |
| Sep 2, 2025 | Zielinski | ½–½ | Chabowski | 2 liga 2025 2 | Sicilian Defense: O'Kelly Variation, Maróczy Bind, Geller Line | |
| Sep 1, 2025 | Szymczak | ½–½ | Zielinski | 2liga_2025_3 | Queen's Pawn Game: Zukertort Variation | |
| Feb 26, 2025 | Trickov | 1–0 | Zielinski | WSTCC | Queen's Pawn Game: Zukertort Variation | |
| Feb 17, 2025 | Zielinski | ½–½ | Motuz | WSTCC | Italian Game: Evans Gambit, Tartakower Attack | |
| Sep 8, 2024 | Zielinski | 0–1 | Siennicki | 2liga-2 | Caro-Kann Defense: Two Knights Attack | |
| Sep 4, 2024 | Kedzierski | ½–½ | Zielinski | 2liga-2 | Queen's Pawn Game: Zukertort Variation | |
| Sep 3, 2024 | Zielinski | 1–0 | Wozny | 2liga-2 | Sicilian Defense: French Variation, Westerinen Attack | |
| Sep 2, 2024 | Pelowski | ½–½ | Zielinski | 2liga-3 | English Opening: Symmetrical Variation, Fianchetto Variation | |
| Sep 1, 2024 | Zielinski | 0–1 | Zurkowski | 2liga-2 | Sicilian Defense: Pin Variation, Koch Variation | |
| Jul 11, 2024 | Kayser | 0–1 | Zielinski | wst50 | Benoni Defense: Old Benoni | |
| Jul 10, 2024 | Cholewa | 0–1 | Zielinski | wst50 | Zukertort Opening: Sicilian Invitation | |
| Jul 9, 2024 | Zielinski | ½–½ | Hughes | wst50 | Caro-Kann Defense: Exchange Variation | |
| Jul 7, 2024 | Jezierska | 1–0 | Zielinski | wstcc2024o50 | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Jul 6, 2024 | Johnsen | 0–1 | Zielinski | wstcc2024o50 | Sicilian Defense: Closed | |
| Jul 5, 2024 | Zielinski | ½–½ | Noyce | wstcc2024o50 | Scandinavian Defense: Richter Variation | |
| Jul 4, 2024 | Van Bentum | ½–½ | Zielinski | wstcc2024o50 | Queen's Pawn Game: Zukertort Variation | |
| Jul 3, 2024 | Zielinski | 1–0 | Scheckenbach | wstcc2024o50 | Sicilian Defense: Prins Variation, Venice Attack | |
| Jul 2, 2024 | Zielinski | ½–½ | Bulkovstein | wstcc2024o50 | French Defense: Exchange Variation | |
| May 15, 2024 | Lekic | 0–1 | Zielinski | European Senior Team Chess Championship 2024 - Section 50 + | Benoni Defense: Taimanov Variation | |
| May 8, 2024 | Zielinski | 1–0 | Kindle | European Senior Team Chess Championship 2024 - Section 50 + | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Nov 4, 2024 | Kazakis | 1–0 | Zielinski | Round 9: Kazakis, Mattheos Konstantinos - Zielinski, Olgierd | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Nov 3, 2024 | Zielinski | ½–½ | Hoareau | Round 8: Zielinski, Olgierd - Hoareau, Hugues | Sicilian Defense: Portsmouth Gambit | |
| Oct 29, 2024 | Atharv Bansal | ½–½ | Zielinski | Round 3: Atharv Bansal - Zielinski, Olgierd | French Defense: Schlechter Variation | |
| Jul 20, 2023 | Hogarth | ½–½ | Zielinski | European Senior Team Chess Championship 2023 50+ | Benoni Defense: Old Benoni, Mujannah Formation | |
| Jul 19, 2023 | Zielinski | ½–½ | Kantorik | European Senior Team Chess Championship 2023 50+ | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Jul 18, 2023 | Sand | ½–½ | Zielinski | European Senior Team Chess Championship 2023 50+ | Sicilian Defense: Godiva Variation | |
| Jul 17, 2023 | Zielinski | ½–½ | Noyce | European Senior Team Chess Championship 2023 50+ | Scandinavian Defense: Richter Variation | |
| Jul 16, 2023 | Ward | 0–1 | Zielinski | European Senior Team Chess Championship 2023 50+ | Indian Defense: Anti-Grünfeld, Basman-Williams Attack | |
| Jul 15, 2023 | Zielinski | ½–½ | Marks | European Senior Team Chess Championship 2023 50+ | Sicilian Defense: Modern Variations, Anti-Qxd4 Move Order Accepted | |
| Jul 14, 2023 | Zielinski | 1–0 | Buriene | European Senior Team Chess Championship 2023 50+ | Ruy Lopez: Closed, Bogoljubow Variation | |
| Jul 13, 2023 | Serwin | 0–1 | Zielinski | European Senior Team Chess Championship 2023 50+ | Benoni Defense: Benoni Gambit Accepted | |
| Jul 12, 2023 | Zielinski | 0–1 | Fink-Nunn | European Senior Team Chess Championship 2023 50+ | Sicilian Defense: Modern Variations, Anti-Qxd4 Move Order | |
| Oct 22, 2022 | Stoychev | * | Zielinski | World Amateur CC U2000 | ? | |
| Jul 13, 2022 | Druckenthaner | 0–1 | Zielinski | ESCC 50+ Lublin 2022 | Sicilian Defense: French Variation, Open | |
| Jul 12, 2022 | Zielinski | 1–0 | Chwalewski | ESCC 50+ Lublin 2022 | Caro-Kann Defense | |
| Jul 11, 2022 | Wielosz | 1–0 | Zielinski | ESCC 50+ Lublin 2022 | English Opening: Symmetrical Variation | |
| Jul 10, 2022 | Zielinski | 1–0 | Krzyzanowska-Zadlo | ESCC 50+ Lublin 2022 | Sicilian Defense: Pin Variation | |
| Jul 9, 2022 | Kirszenberg | ½–½ | Zielinski | ESCC 50+ Lublin 2022 | Grünfeld Defense: Three Knights Variation, Petrosian System | |
| Jul 8, 2022 | Zielinski | 1–0 | Sawiniec | ESCC 50+ Lublin 2022 | Caro-Kann Defense: Classical Variation, Flohr Variation | |
| Jul 6, 2022 | Garabetyan | 1–0 | Zielinski | ESCC 50+ Lublin 2022 | Benoni Defense: Semi-Benoni | |
| Jul 5, 2022 | Zielinski | 0–1 | Padrak | ESCC 50+ Lublin 2022 | Caro-Kann Defense: Advance Variation, Short Variation | |
| Oct 25, 2021 | Zielinski | * | Singe | FIDE World Amateur 2021 U2000 | ? | |
| Oct 24, 2021 | Hagevi | * | Zielinski | FIDE World Amateur 2021 U2000 | ? | |
| Oct 23, 2021 | Mohamed | 1–0 | Zielinski | FIDE World Amateur 2021 U2000 | French Defense: Winawer Variation | |
| Oct 22, 2021 | Zielinski | * | Baisynov | FIDE World Amateur 2021 U2000 | ? | |
| Oct 21, 2021 | Zielinski | * | Ehab | FIDE World Amateur 2021 U2000 | ? | |
| Oct 20, 2021 | Sielicki | ½–½ | Zielinski | FIDE World Amateur 2021 U2000 | Indian Defense | |
| Oct 19, 2021 | Mongeli | * | Zielinski | FIDE World Amateur 2021 U2000 | ? | |
| Oct 18, 2021 | Boesch | * | Zielinski | FIDE World Amateur 2021 U2000 | ? | |