| Feb 15, 2026 | Leidorf | ½–½ | Kwiatkowski | Round 9: Leidorf, Sebastian - Kwiatkowski,Antoni | English Opening | |
| Feb 14, 2026 | Houssein | 0–1 | Leidorf | Round 8: Houssein, Mohamed Bilal - Leidorf, Sebastian | English Opening: Agincourt Defense | |
| Feb 13, 2026 | Leidorf | ½–½ | Charfeddine | Round 6: Leidorf, Sebastian - Charfeddine, Akram | English Opening: King's English Variation | |
| Feb 12, 2026 | Tkitek Mohamed Mejed | ½–½ | Leidorf | Round 5: Tkitek Mohamed Mejed - Leidorf, Sebastian | Catalan Opening: Open Defense, Classical Line | |
| Feb 10, 2026 | Leidorf | 1–0 | Ghanem | Round 4: Leidorf, Sebastian - Ghanem, Khaled | English Opening: Symmetrical Variation, Full Symmetry Line | |
| Feb 10, 2026 | Belhout | ½–½ | Leidorf | Round 3: Belhout, Ahmed Zoubaier - Leidorf, Sebastian | Nimzo-Indian Defense: Classical Variation | |
| Feb 9, 2026 | Leidorf | 0–1 | Zenaidi | Round 2: Leidorf, Sebastian - Zenaidi, Mokhtar | English Opening: Anglo-Indian Defense | |
| Feb 8, 2026 | Marceil | 0–1 | Leidorf | Round 1: Marceil, Jean - Leidorf, Sebastian | Nimzo-Indian Defense: Classical Variation | |
| Dec 2, 2025 | Prisacaru | 1–0 | Leidorf | European Amateur Ch U2300 | Queen's Pawn Game: Zukertort Variation | |
| Dec 1, 2025 | Leidorf | 1–0 | Naymanova | European Amateur Ch U2300 | Réti Opening: Anglo-Slav Variation, with g3 | |
| Nov 30, 2025 | Pace | 1–0 | Leidorf | European Amateur Ch U2300 | French Defense: Tarrasch Variation, Closed Variation, Main Line | |
| Nov 29, 2025 | Leidorf | ½–½ | Kinnunen | European Amateur Ch U2300 | Réti Opening: Anglo-Slav Variation, Bogoljubow Variation, Stonewall Line | |
| Nov 28, 2025 | Pala | 0–1 | Leidorf | European Amateur Ch U2300 | King's Indian Attack | |
| May 8, 2025 | Aishwin Daniel | 1–0 | Leidorf | Round 9: Aishwin Daniel - Leidorf, Sebastian | French Defense: Steinitz Variation, Boleslavsky Variation | |
| May 5, 2025 | Leidorf | 0–1 | Kogan | Round 6: Leidorf, Sebastian - Kogan, Arthur | English Opening: Great Snake Variation | |
| May 2, 2025 | Suvradeepta | ½–½ | Leidorf | Round 4: Suvradeepta, Das - Leidorf, Sebastian | Zukertort Opening | |
| Apr 29, 2025 | Leidorf | 0–1 | Dragnev | Round 1: Leidorf, Sebastian - Dragnev, Valentin | English Opening: Anglo-Indian Defense | |
| Dec 12, 2024 | Leidorf | 0–1 | Alekseenko | XI Sunway Sitges International Chess Festival 2024 - Group A | English Opening: King's English Variation | |
| Dec 12, 2024 | Leidorf | 0–1 | Alekseenko | XI Sunway Sitges International Chess Fes | English Opening: King's English Variation | |
| Oct 9, 2024 | Leidorf | 0–1 | Castell Cantero | Round 5: Leidorf, Sebastian - Castell Cantero, Salvador | English Opening: King's English Variation | |
| Oct 8, 2024 | Thakoerdien | ½–½ | Leidorf | Round 4: Thakoerdien, Jerrel - Leidorf, Sebastian | Catalan Opening: Open Defense, Classical Line | |
| Oct 7, 2024 | Leidorf | ½–½ | Martin Rueda | Round 3: Leidorf, Sebastian - Martin Rueda, Daniel | English Opening: Anglo-Indian Defense | |
