| Jan 5, 2026 | Loecken | 0–1 | Martin | Runde 7: Loecken, Siegfried - Martin, Dennis | Sicilian Defense | |
| Jan 4, 2026 | Askerov | 0–1 | Loecken | Runde 6: Askerov, Imamali - Loecken, Siegfried | Four Knights Game: Spanish Variation, Double Spanish | |
| Jan 4, 2026 | Loecken | ½–½ | Jacobi | Runde 5: Loecken, Siegfried - Jacobi, Felix-Hagen | Caro-Kann Defense: Exchange Variation | |
| Jan 3, 2026 | Huels | 0–1 | Loecken | Runde 4: Huels, Arne - Loecken, Siegfried | Rapport-Jobava System | |
| Jan 3, 2026 | Loecken | 0–1 | Dornieden | Runde 3: Loecken, Siegfried - Dornieden, Jonas | Sicilian Defense | |
| Jan 2, 2026 | Lieb | 0–1 | Loecken | Runde 2: Lieb, Max - Loecken, Siegfried | Benoni Defense: Taimanov Variation | |
| Jan 2, 2026 | Loecken | 1–0 | Junge | Runde 1: Loecken, Siegfried - Junge, Julia Marie | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jan 5, 2025 | Lehmkuhl | 0–1 | Loecken | Round 7: Lehmkuhl, Stefan - Loecken, Siegfried | Benoni Defense: King's Pawn Line | |
| Jan 4, 2025 | Loecken | ½–½ | Direk | Round 6: Loecken, Siegfried - Direk, Oguzhan | King's Indian Attack | |
| Jan 4, 2025 | Rausch | ½–½ | Loecken | Round 5: Rausch, Darius - Loecken, Siegfried | Sicilian Defense: Closed, Traditional | |
| Jan 3, 2025 | Loecken | 0–1 | Muecke | Round 4: Loecken, Siegfried - Muecke, Leonard | Pirc Defense | |
| Jan 3, 2025 | Bangert | 1–0 | Loecken | Round 3: Bangert, Jonas - Loecken, Siegfried | Queen's Gambit Accepted: Central Variation, Modern Defense | |
| Jan 2, 2025 | Loecken | 0–1 | Sayas Payyappat | Round 2: Loecken, Siegfried - Sayas Payyappat | Zukertort Opening: Black Mustang Defense | |
| Jan 2, 2025 | Kozik | 0–1 | Loecken | Round 1: Kozik, Andreas - Loecken, Siegfried | Benoni Defense: Classical Variation, Czerniak Defense | |
| Jan 7, 2023 | Lebiedz | 0–1 | Loecken | Lower Saxony Championship | A | Alekhine Defense: Normal Variation | |
| Jan 7, 2023 | Kuegel | 1–0 | Loecken | Lower Saxony Championship | A | Alekhine Defense: Four Pawns Attack | |
| Jan 5, 2023 | Poelig | 0–1 | Loecken | Lower Saxony Championship | A | Zukertort Opening | |
