| Jun 7, 2026 | Keller | 1–0 | Amon | Round 7: Keller, Niklas - Amon, Markus | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Jun 6, 2026 | Pleimer | 1–0 | Keller | Round 6: Pleimer, Noah - Keller, Niklas | Catalan Opening | |
| Jun 6, 2026 | Keller | 0–1 | Ruescher | Round 5: Keller, Niklas - Ruescher, Anton | Caro-Kann Defense: Exchange Variation, Rubinstein Variation | |
| Jun 5, 2026 | Dordevic | 0–1 | Keller | Round 4: Dordevic, Marko - Keller, Niklas | Indian Defense: Normal Variation | |
| Jun 5, 2026 | Keller | ½–½ | Slutski | Round 3: Keller, Niklas - Slutski, Alexander | Ruy Lopez: Steinitz Defense | |
| Jun 4, 2026 | Schwarz | 0–1 | Keller | Round 2: Schwarz, Jannis - Keller, Niklas | Caro-Kann Defense: Classical Variation, Spassky Variation | |
| Jun 4, 2026 | Keller | 1–0 | Rella | Round 1: Keller, Niklas - Rella, Mario | Philidor Defense: Exchange Variation | |
| Oct 29, 2025 | Chen | 1–0 | Keller | Round 1: Chen, Chicheng Leon - Keller, Niklas | Caro-Kann Defense: Accelerated Panov Attack, Modern Variation | |
| Jun 22, 2025 | Veladzic | 0–1 | Keller | Round 7: Veladzic, Isak - Keller, Niklas | Queen's Pawn Game: Colle System | |
| Jun 21, 2025 | Keller | ½–½ | Wu | Round 6: Keller, Niklas - Wu, Chenshan | French Defense: Tarrasch Variation, Chistyakov Defense, Modern Line | |
| Jun 21, 2025 | Lichtl | 0–1 | Keller | Round 5: Lichtl, Valentin - Keller, Niklas | Queen's Pawn Game: Colle System | |
| Jun 20, 2025 | Zebedin | 0–1 | Keller | Round 3: Zebedin, Andreas - Keller, Niklas | Queen's Gambit Accepted: Central Variation, McDonnell Defense | |
| Jun 19, 2025 | Keller | 1–0 | Fischkin | Round 2: Keller, Niklas - Fischkin, Daniel | Scotch Game: Classical Variation | |
| Jun 19, 2025 | Koch | 0–1 | Keller | Round 1: Koch, Paul - Keller, Niklas | Caro-Kann Defense: Exchange Variation | |
| Jun 19, 2025 | Keller | 0–1 | Chen | Round 4: Keller, Niklas - Chen, Chicheng Leon | Sicilian Defense: Moscow Variation | |
| Apr 17, 2025 | Keller | 0–1 | Taizhanov | Round 7: Keller, Niklas - Taizhanov, Aissultan | Sicilian Defense: French Variation | |
| Apr 16, 2025 | Keller | 1–0 | Haselsberger | Round 6: Keller, Niklas - Haselsberger, Armin | Caro-Kann Defense: Exchange Variation | |
| Apr 13, 2025 | Stickler | 1–0 | Keller | Round 1: Stickler, Florentin - Keller, Niklas | Caro-Kann Defense: Tartakower Variation | |
| Jul 20, 2024 | Mitterer | ½–½ | Keller | Round 7: Mitterer, David - Keller, Niklas | Caro-Kann Defense: Maróczy Variation | |
| Jul 20, 2024 | Keller | 0–1 | Schalkhaeuser | Round 6: Keller, Niklas - Schalkhaeuser, Linus | Semi-Slav Defense | |
| Jul 20, 2024 | Keller | 1–0 | Baumgartner | Round 2: Keller, Niklas - Baumgartner, Thimo | Dutch Defense | |
| Jul 20, 2024 | Emma Boesendorfer | 0–1 | Keller | Round 5: Emma Boesendorfer - Keller, Niklas | Caro-Kann Defense: Two Knights Attack | |
| Jul 20, 2024 | Keller | ½–½ | Fakhouri | Round 4: Keller, Niklas - Fakhouri, Paul | Slav Defense: Breyer Variation | |
| Jul 20, 2024 | Brandl | 0–1 | Keller | Round 3: Brandl, Benedikt - Keller, Niklas | Caro-Kann Defense: Maróczy Variation | |
| Jul 20, 2024 | Konstantin Weilaender | 0–1 | Keller | Round 1: Konstantin Weilaender - Keller, Niklas | King's Indian Defense: Smyslov Variation | |
| Jun 2, 2024 | Perfler | ½–½ | Keller | Round 7: Perfler, Daniel - Keller, Niklas | Caro-Kann Defense: Tartakower Variation | |
| Jun 1, 2024 | Keller | 0–1 | Radnaev | Round 6: Keller, Niklas - Radnaev, Leo | King's Indian Defense: Orthodox Variation, Aronin-Taimanov Defense | |
| Jun 1, 2024 | Chen | ½–½ | Keller | Round 5: Chen, Chicheng Leon - Keller, Niklas | Caro-Kann Defense: Advance Variation, Tal Variation | |
| May 31, 2024 | Keller | 1–0 | Zebedin | Round 4: Keller, Niklas - Zebedin, Andreas | Slav Defense: Bonet Gambit | |
| May 31, 2024 | Knittel-Templ | ½–½ | Keller | Round 3: Knittel-Templ, Richard - Keller, Niklas | Indian Defense: Normal Variation | |
| May 30, 2024 | Keller | ½–½ | Winkelmayr | Round 2: Keller, Niklas - Winkelmayr, Raphael | Queen's Gambit Declined | |
| May 30, 2024 | Chen | 0–1 | Keller | Round 1: Chen, Yan Xi - Keller, Niklas | Caro-Kann Defense: Exchange Variation | |
