| Dec 30, 2025 | Komans | 1–0 | Rustemeyer | Round 7: Komans, Dieter - Rustemeyer, Stephan | Caro-Kann Defense | |
| Dec 30, 2025 | Rustemeyer | 1–0 | van Weegen | Round 6: Rustemeyer, Stephan - van Weegen, Raphael | Sicilian Defense: Four Knights Variation, Exchange Variation | |
| Dec 29, 2025 | Theiner | 0–1 | Rustemeyer | Round 5: Theiner, Mattis - Rustemeyer, Stephan | Caro-Kann Defense: Endgame Offer | |
| Dec 29, 2025 | Rustemeyer | 0–1 | Schless | Round 4: Rustemeyer, Stephan - Schless, Sebastian | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Dec 28, 2025 | Preuschoff | 1–0 | Rustemeyer | Round 3: Preuschoff, Michael - Rustemeyer, Stephan | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Dec 28, 2025 | Rustemeyer | 1–0 | Nopper | Round 2: Rustemeyer, Stephan - Nopper, Louis | Pirc Defense: 150 Attack | |
| Dec 30, 2024 | Borkhardt | ½–½ | Rustemeyer | Round 7: Borkhardt, Arndt - Rustemeyer, Stephan | Caro-Kann Defense: Advance Variation | |
| Dec 30, 2024 | Rustemeyer | 0–1 | Heider | Round 6: Rustemeyer, Stephan - Heider, Niklas | Caro-Kann Defense: Panov Attack, Modern Defense | |
| Dec 29, 2024 | Lang | 1–0 | Rustemeyer | Round 5: Lang, Daniel - Rustemeyer, Stephan | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Dec 29, 2024 | Rustemeyer | * | Kuipers | Round 4: Rustemeyer, Stephan - Kuipers, Dustin | Caro-Kann Defense: Panov Attack, Modern Defense | |
| Dec 28, 2024 | Kovar | 0–1 | Rustemeyer | Round 3: Kovar, Matej - Rustemeyer, Stephan | Queen's Gambit Declined: Three Knights Variation | |
| Dec 28, 2024 | Rustemeyer | 1–0 | Helwig | Round 2: Rustemeyer, Stephan - Helwig, Tim Oliver | Four Knights Game: Scotch Variation Accepted | |
| Dec 27, 2024 | Verfuerth | ½–½ | Rustemeyer | Round 1: Verfuerth, Kevin - Rustemeyer, Stephan | English Opening: Caro-Kann Defensive System | |
