| Oct 5, 2025 | Lebiedz | 1–0 | Frahm | Round 5: Lebiedz, Oliver - Frahm, Ben Jonas | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Oct 4, 2025 | Moskalenko | 1–0 | Lebiedz | Round 4: Moskalenko, Michael - Lebiedz, Oliver | Indian Defense: Döry Indian | |
| Oct 4, 2025 | Lebiedz | ½–½ | Oblender | Round 3: Lebiedz, Oliver - Oblender, Rudi | French Defense: Franco-Sicilian Defense | |
| Oct 3, 2025 | Goetz | ½–½ | Lebiedz | Round 2: Goetz, Claus, Dr. - Lebiedz, Oliver | Sicilian Defense: Closed, Korchnoi Defense | |
| Oct 3, 2025 | Lebiedz | 0–1 | Kunst | Round 1: Lebiedz, Oliver - Kunst, Jannis | Italian Game: Giuoco Pianissimo, Normal | |
| Jun 1, 2025 | Lebiedz | 1–0 | Oblender | Round 7: Lebiedz, Oliver - Oblender, Rudi | King's Pawn Game | |
| May 31, 2025 | Prasanth | 0–1 | Lebiedz | Round 6: Prasanth, Rishi - Lebiedz, Oliver | Sicilian Defense: Alapin Variation | |
| May 31, 2025 | Lebiedz | 1–0 | Christiansen | Round 5: Lebiedz, Oliver - Christiansen, Henning | Pirc Defense: 150 Attack | |
| May 30, 2025 | Hieke | 1–0 | Lebiedz | Round 4: Hieke, Jonas - Lebiedz, Oliver | Sicilian Defense: Closed | |
| May 30, 2025 | Lebiedz | 1–0 | Gerdts | Round 3: Lebiedz, Oliver - Gerdts, Martina | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| May 29, 2025 | Junge | 1–0 | Lebiedz | Round 2: Junge, Julia Marie - Lebiedz, Oliver | Sicilian Defense | |
| May 29, 2025 | Lebiedz | 1–0 | Magezi | Round 1: Lebiedz, Oliver - Magezi, Noah | Scandinavian Defense: Portuguese Gambit, Classical Variation | |
| Jan 5, 2025 | Lebiedz | 1–0 | Hoellman | Round 7: Lebiedz, Oliver - Hoellman, Ludger | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Jan 4, 2025 | Reimer | ½–½ | Lebiedz | Round 5: Reimer, Philip - Lebiedz, Oliver | Sicilian Defense: Four Knights Variation | |
| Jan 4, 2025 | Zweigait | 0–1 | Lebiedz | Round 6: Zweigait, Leon - Lebiedz, Oliver | Sicilian Defense: Four Knights Variation, Cobra Variation | |
| Jan 3, 2025 | Lebiedz | 1–0 | Direk | Round 3: Lebiedz, Oliver - Direk, Oguzhan | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Jan 3, 2025 | Lebiedz | ½–½ | Renner | Round 4: Lebiedz, Oliver - Renner, Kai | French Defense: Tarrasch Variation, Morozevich Variation | |
| Jan 2, 2025 | Lebiedz | 0–1 | Bundan | Round 1: Lebiedz, Oliver - Bundan, Edward | Sicilian Defense: Alapin Variation | |
| Jan 2, 2025 | Kiesel | 0–1 | Lebiedz | Round 2: Kiesel, Lara - Lebiedz, Oliver | Tarrasch Defense: Two Knights Variation | |
| Jul 28, 2024 | Pilat | * | Lebiedz | Round 6: Pilat, Aurelius - Lebiedz, Oliver | ? | |
| Jul 28, 2024 | Lebiedz | ½–½ | Reichelt | Round 7: Lebiedz, Oliver - Reichelt, Ole | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Jul 27, 2024 | Lebiedz | 0–1 | de Vries | Round 5: Lebiedz, Oliver - de Vries, Carsten | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Jul 27, 2024 | Jacobi | ½–½ | Lebiedz | Round 4: Jacobi, Felix-Hagen - Lebiedz, Oliver | Sicilian Defense: McDonnell Attack, Tal Gambit | |
| Jul 26, 2024 | Lebiedz | 1–0 | Luis-Maria Vieito | Round 3: Lebiedz, Oliver - Luis-Maria Vieito | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Jul 26, 2024 | Meschke | 0–1 | Lebiedz | Round 2: Meschke, Oliver - Lebiedz, Oliver | Sicilian Defense: Closed | |
| Jul 25, 2024 | Lebiedz | 0–1 | Kamps | Round 1: Lebiedz, Oliver - Kamps, Manuel | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Jan 7, 2023 | Lebiedz | 0–1 | Loecken | Lower Saxony Championship | A | Alekhine Defense: Normal Variation | |
| Jan 7, 2023 | Klages | 1–0 | Lebiedz | Lower Saxony Championship | A | Modern Defense | |
| Jan 5, 2023 | Koch | 0–1 | Lebiedz | Lower Saxony Championship | A | Nimzo-Indian Defense: Normal Variation | |
| — | Lebiedz | 1–0 | Koronowski | Round 1: Lebiedz, Oliver - Koronowski, Heinz-Juergen | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| — | Lebiedz | 0–1 | Neumann | Round 3: Lebiedz, Oliver - Neumann, Michael | Sicilian Defense: Alapin Variation | |
| — | Lebiedz | 0–1 | Neumann | Round 6: Lebiedz, Oliver - Neumann, Hannes | Sicilian Defense: Alapin Variation | |
| — | Laubsch | 0–1 | Lebiedz | Round 2: Laubsch, Bernd - Lebiedz, Oliver | Sicilian Defense: Kramnik Variation | |
| — | Castro Niemann | 1–0 | Lebiedz | Round 4: Castro Niemann, Quentin Jose - Lebiedz, Oliver | Trompowsky Attack | |
| — | Meschke | 1–0 | Lebiedz | Round 5: Meschke, Oliver - Lebiedz, Oliver | Sicilian Defense: Closed, Korchnoi Defense | |
| — | Oelschlaeger | 0–1 | Lebiedz | Round 7: Oelschlaeger, Malo - Lebiedz, Oliver | Sicilian Defense: Closed | |