| Sep 22, 2024 | Stefaniuk | * | Jakubowska | Szansa Rapid 2024 | ? | |
| Sep 22, 2024 | Stefaniuk | * | Solnicki | Szansa Rapid 2024 | ? | |
| Sep 22, 2024 | Stefaniuk | * | Feja | Szansa Rapid 2024 | ? | |
| Sep 22, 2024 | Stefaniuk | * | Sacharewicz | Szansa Rapid 2024 | ? | |
| Sep 22, 2024 | Toczynska | * | Stefaniuk | Szansa Rapid 2024 | ? | |
| Sep 22, 2024 | Fajks | * | Stefaniuk | Szansa Rapid 2024 | ? | |
| Sep 22, 2024 | Orfinger | * | Stefaniuk | Szansa Rapid 2024 | ? | |
| Sep 22, 2024 | Panasewicz | * | Stefaniuk | Szansa Rapid 2024 | ? | |
| Sep 21, 2024 | Stefaniuk | * | Marciniak | new tournament description | ? | |
| Sep 21, 2024 | Stefaniuk | * | Rekets | new tournament description | ? | |
| Sep 21, 2024 | Rutkowski | * | Stefaniuk | new tournament description | ? | |
| Sep 21, 2024 | Warcaba | * | Stefaniuk | new tournament description | ? | |
| Jul 8, 2024 | Stefaniuk | 1–0 | Fiszer | Macieja Memorial | King's Indian Defense: Orthodox Variation, Gligoric-Taimanov System | |
| Jul 8, 2024 | Stefaniuk | 0–1 | Starosta | Macieja Memorial | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Jul 8, 2024 | Stefaniuk | 1–0 | Wiech | Macieja Memorial | Sicilian Defense: Moscow Variation, Main Line | |
| Jul 8, 2024 | Stefaniuk | 1–0 | Smal | Macieja Memorial | Modern Defense: Standard Defense | |
| Jul 8, 2024 | Heberla | 1–0 | Stefaniuk | Macieja Memorial | Zukertort Opening | |
| Jul 8, 2024 | Klim | 1–0 | Stefaniuk | Macieja Memorial | Scandinavian Defense: Richter Variation | |
| Jul 8, 2024 | Celinski | 1–0 | Stefaniuk | Macieja Memorial | English Opening: Symmetrical Variation, Full Symmetry Line | |
| Jul 19, 2023 | Stefaniuk | 1–0 | Bury | Najdorf Memorial B | Sicilian Defense: Four Knights Variation | |
| Jul 18, 2023 | Pires | ½–½ | Stefaniuk | Najdorf Memorial B | Italian Game: Two Knights Defense | |
| Jul 17, 2023 | Stefaniuk | ½–½ | Szydelko | Najdorf Memorial B | Petrov's Defense: Three Knights Game | |
| Jul 16, 2023 | Gorniewicz | 1–0 | Stefaniuk | Najdorf Memorial B | Queen's Pawn Game: London System | |
| Jul 15, 2023 | Stefaniuk | 1–0 | Lukasiewicz | Najdorf Memorial B | Four Knights Game: Spanish Variation, Classical Variation | |
| Jul 14, 2023 | Szefer | ½–½ | Stefaniuk | Najdorf Memorial B | Neo-Grünfeld Defense: Classical Variation, Original Defense | |
| Jul 13, 2023 | Stefaniuk | 1–0 | Ryszkiewicz | Najdorf Memorial B | Four Knights Game: Spanish Variation, Classical Variation | |
| Jul 11, 2023 | Stefaniuk | ½–½ | Terkiewicz | Najdorf Memorial B | Sicilian Defense: Kalashnikov Variation | |
| Dec 13, 2021 | Lechowski | 0–1 | Stefaniuk | IMP20b | Old Indian Defense: Two Knights Variation | |
| Dec 12, 2021 | Marciniak | 1–0 | Stefaniuk | IMP20b | Ruy Lopez: Exchange Variation, Alapin Gambit | |
| Dec 11, 2021 | Stefaniuk | 0–1 | Zielonka | IMP20b | Bogo-Indian Defense: Grünfeld Variation | |
| Dec 10, 2021 | Rog | 1–0 | Stefaniuk | IMP20b | Catalan Opening: Open Defense, Classical Line | |
| Dec 9, 2021 | Stefaniuk | 1–0 | Kocierz | IMP20b | Philidor Defense: Hanham Variation | |
| Dec 8, 2021 | Budzisz | 1–0 | Stefaniuk | U20 Polish Youth Championship | Old Indian Defense: Ukrainian Variation | |
| Dec 7, 2021 | Sowinski | 1–0 | Stefaniuk | IMP20b | English Opening: Symmetrical Variation | |
| Dec 6, 2021 | Stefaniuk | 0–1 | Kazmierowski | IMP20b | Sicilian Defense: Closed | |
| Dec 6, 2021 | Stefaniuk | 1–0 | Paprocki | IMP20b | Queen's Indian Defense: Petrosian Variation, Farago Defense | |
| — | Stefaniuk | * | Czerwinski | new tournament description | ? | |
| — | Stefaniuk | * | Domeradzka | new tournament description | ? | |
| — | Stefaniuk | 1–0 | Kaczmarczyk | Rubinstein Chess Festival 2025 - OPEN B | Catalan Opening: Closed | |
| — | Stefaniuk | 1–0 | Gawlik | Rubinstein Chess Festival 2025 - OPEN B | King's Indian Attack: Yugoslav Variation | |
| — | Stefaniuk | 1–0 | Somyk | Rubinstein Chess Festival 2025 - OPEN B | King's Indian Attack | |
| — | Stefaniuk | 1–0 | Straszewski | Rubinstein Chess Festival 2025 - OPEN B | Dutch Defense: Classical Variation, Buenos Aires Variation | |
| — | Korys | * | Stefaniuk | new tournament description | ? | |
| — | Stanczuk | * | Stefaniuk | new tournament description | ? | |
| — | Antczak | * | Stefaniuk | Szansa Rapid 2024 | ? | |
| — | Pawlicz | 1–0 | Stefaniuk | Rubinstein Chess Festival 2025 - OPEN B | Scandinavian Defense: Richter Variation | |
| — | Kroliczek | 0–1 | Stefaniuk | Rubinstein Chess Festival 2025 - OPEN B | Caro-Kann Defense: Main Line | |
| — | Kisiel | 1–0 | Stefaniuk | Rubinstein Chess Festival 2025 - OPEN B | Caro-Kann Defense: Advance Variation | |
| — | Pekacki | ½–½ | Stefaniuk | Rubinstein Chess Festival 2025 - OPEN B | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| — | Ladon | ½–½ | Stefaniuk | Rubinstein Chess Festival 2025 - OPEN B | Ruy Lopez: Morphy Defense, Anderssen Variation | |
