| Apr 20, 2026 | Stepien | * | Czepczynski | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | Queen's Pawn Game: Modern Defense | |
| Apr 20, 2026 | Stadnicki | * | Stepien | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | Queen's Gambit Declined: Normal Defense | |
| Apr 19, 2026 | Stepien | 1–0 | Szydelko | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | Sicilian Defense: Modern Variations | |
| Apr 19, 2026 | Kapica | 1–0 | Stepien | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | French Defense: Horwitz Attack | |
| Apr 18, 2026 | Stepien | 1–0 | Kiwilsza | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | Queen's Gambit Declined: Modern Variation, Normal Line | |
| Apr 18, 2026 | Hoffmann | 0–1 | Stepien | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | Sicilian Defense: Classical Variation | |
| Apr 17, 2026 | Stepien | ½–½ | Litwin | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | French Defense: Advance Variation, Milner-Barry Gambit | |
| Apr 17, 2026 | Walkowiak | 0–1 | Stepien | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | King's Indian Defense: Normal Variation, Standard Development | |
| Apr 17, 2026 | Stepien | 0–1 | Twardy | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | Indian Defense: Knights Variation | |
| Apr 17, 2026 | Rajtar | ½–½ | Stepien | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | Pseudo Queen's Indian Defense | |
| Apr 16, 2026 | Stepien | ½–½ | Minko | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Apr 16, 2026 | Chromicz | 0–1 | Stepien | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | French Defense: Advance Variation, Paulsen Attack | |
| Apr 15, 2026 | Stepien | 0–1 | Stadnicki | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | Nimzo-Larsen Attack: Modern Variation | |
| Apr 15, 2026 | Kuzian | 0–1 | Stepien | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | Sicilian Defense: McDonnell Attack | |
| Apr 15, 2026 | Stepien | 0–1 | Wysocki | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | Philidor Defense: Exchange Variation | |
| Apr 15, 2026 | Slawinska | 0–1 | Stepien | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | Queen's Pawn Game: Torre Attack, Gossip Variation | |
| Apr 14, 2026 | Stepien | 0–1 | Shilov | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | Nimzo-Larsen Attack: English Variation | |
| Apr 14, 2026 | Didyk | 0–1 | Stepien | Indywidualne Mistrzostwa Polski Seniorow 2026 - grupa 65+ | Sicilian Defense: Modern Variations, Main Line | |
| Apr 13, 2025 | Stepien | ½–½ | Sarnik | Columbus Mistrzostwa Polski Amatorów - do 1900 FIDE | Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan | |
| Apr 12, 2025 | Truchel | 1–0 | Stepien | Columbus Mistrzostwa Polski Amatorów - do 1900 FIDE | French Defense | |
| Apr 9, 2025 | Stepien | 1–0 | Kuznik | Columbus Mistrzostwa Polski Amatorów - do 1900 FIDE | Queen's Pawn Game: Symmetrical Variation | |
| Apr 8, 2025 | Kuriata | ½–½ | Stepien | Columbus Mistrzostwa Polski Amatorów - do 1900 FIDE | French Defense: Tarrasch Variation, Closed Variation | |
| Apr 7, 2025 | Stepien | 0–1 | Aksianevich | Columbus Mistrzostwa Polski Amatorów - do 1900 FIDE | Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan | |
| Apr 5, 2025 | Stepien | ½–½ | Bialkowski | Columbus Mistrzostwa Polski Amatorów - do 1900 FIDE | Sicilian Defense: Taimanov Variation | |
| Aug 23, 2024 | Swapna C N | 1–0 | Stepien | rubinstein24-a1 | Trompowsky Attack | |
| Aug 22, 2024 | Stepien | 0–1 | Chmielek | rubinstein24-a1 | Sicilian Defense: Kramnik Variation | |
| Aug 21, 2024 | Stepien | ½–½ | Marin Aso | rubinstein24-a1 | Caro-Kann Defense: Exchange Variation | |
| Aug 20, 2024 | Rosa | 1–0 | Stepien | rubinstein24-a1 | Sicilian Defense: Wing Gambit, Deferred Variation | |
| Aug 19, 2024 | Stepien | 0–1 | Sypien | rubinstein24-a1 | Ruy Lopez: Closed, Anti-Marshall | |
| Aug 18, 2024 | Ochedzan | 1–0 | Stepien | rubinstein24-a1 | Sicilian Defense: Dragon Variation, Yugoslav Attack, Panov Variation | |
| Aug 17, 2024 | Stepien | 0–1 | Ciszewski | rubinstein24-a1 | Sicilian Defense: Modern Variations | |
| Apr 21, 2024 | Hombek | ½–½ | Stepien | MPA 1820 2024 | French Defense: Schlechter Variation | |
| Apr 20, 2024 | Stepien | 0–1 | Bajno | MPA 1820 2024 | Queen's Gambit Declined: Albin Countergambit | |
| Apr 19, 2024 | Przytocki | ½–½ | Stepien | MPA 1820 2024 | English Opening: Symmetrical Variation, Botvinnik System Reversed, with Nf3 | |
| Apr 17, 2024 | Kopacz | ½–½ | Stepien | MPA 1820 2024 | English Opening: Anglo-Indian Defense, Queen's Knight Variation | |
| Apr 16, 2024 | Stepien | 1–0 | Przygrodzki | MPA 1820 2024 | Slav Defense: Chebanenko Variation | |
| Apr 15, 2024 | Stepien | 0–1 | Pietras | MPA 1820 2024 | King's Indian Defense: Normal Variation, Standard Development | |
| Apr 14, 2024 | Pierzak | ½–½ | Stepien | MPA 1820 2024 | French Defense: King's Indian Attack | |
| Jun 18, 2023 | Osiecki | 1–0 | Stepien | Mistrzostwa Polski Seniorow 2023 | Sicilian Defense: Alapin Variation | |
| Jun 17, 2023 | Stepien | 1–0 | Sokolowski | Mistrzostwa Polski Seniorow 2023 | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Jun 16, 2023 | Klimaszewski | 1–0 | Stepien | Mistrzostwa Polski Seniorow 2023 | Sicilian Defense: Modern Variations | |
| Jun 15, 2023 | Stepien | 1–0 | Karczynski | Mistrzostwa Polski Seniorow 2023 | Alekhine Defense: Maróczy Variation | |
| Jun 15, 2023 | Sosnowska | 0–1 | Stepien | Mistrzostwa Polski Seniorow 2023 | Sicilian Defense: Dragon Variation, Levenfish Variation | |
| Jun 13, 2023 | Krasowski | 1–0 | Stepien | Mistrzostwa Polski Seniorow 2023 | Sicilian Defense: Lasker-Dunne Attack | |
| — | Stepien | * | Kusnierz | rubinsteinE | ? | |
| — | Stepien | 1–0 | Czepczynski | rubinsteinE | Modern Defense: Standard Defense | |
| — | Stepien | 1–0 | Czajkowski | rubinsteinE | Indian Defense: Anti-Grünfeld, Basman-Williams Attack | |
| — | Stepien | 0–1 | Janocha | rubinsteinE | Petrov's Defense: Cozio Attack | |
| — | Szylko | 0–1 | Stepien | rubinsteinE | Sicilian Defense: Closed | |
| — | Klimaszewski | ½–½ | Stepien | rubinsteinE | Sicilian Defense: Chekhover Variation | |
| — | Shilov | ½–½ | Stepien | rubinsteinE | Grünfeld Defense: Exchange Variation | |
| — | Sokolowski | ½–½ | Stepien | rubinsteinE | Queen's Gambit Accepted: Classical Defense, Main Line | |
| — | Sielicki | 0–1 | Stepien | rubinsteinE | ? | |