| Dec 6, 2025 | de Boer | 0–1 | Kovalskyi | Round 3: de Boer, Willem - Kovalskyi, Roman | Nimzo-Larsen Attack: Classical Variation | |
| Jul 31, 2025 | Narang | ½–½ | de Boer | Round 9: Narang, Ishaan - de Boer, Willem | Scandinavian Defense: Main Line | |
| Jul 31, 2025 | de Boer | 0–1 | Raj Konwar | Round 8: de Boer, Willem - Raj Konwar, Daryan | Sicilian Defense: Grand Prix Attack | |
| Jul 31, 2025 | Thomas Moran | ½–½ | de Boer | Round 7: Thomas Moran - de Boer, Willem | Scandinavian Defense: Main Line | |
| Jul 31, 2025 | de Boer | 1–0 | Tyning Cheng | Round 6: de Boer, Willem - Tyning Cheng | Queen's Pawn Game: Accelerated London System | |
| Jul 31, 2025 | Nguyen | 1–0 | de Boer | Round 5: Nguyen, Lam Vy Le - de Boer, Willem | Scandinavian Defense: Main Line | |
| Jul 31, 2025 | de Boer | ½–½ | Wang | Round 4: de Boer, Willem - Wang, Hantin | Horwitz Defense | |
| Jul 31, 2025 | Patel | 0–1 | de Boer | Round 3: Patel, Parisa - de Boer, Willem | Pirc Defense: Classical Variation, Quiet System, Chigorin Line | |
| Jul 31, 2025 | de Boer | 0–1 | Ford | Round 2: de Boer, Willem - Ford, Nikodem | Queen's Pawn Game: Accelerated London System | |
| Jul 31, 2025 | Gopikrishna | ½–½ | de Boer | Round 1: Gopikrishna, Ashwin - de Boer, Willem | Scandinavian Defense: Main Line | |
| — | de Boer | 1–0 | Abraham | Round 2: de Boer, Willem - Abraham, Benjamin Thomas | Indian Defense | |
| — | de Boer | 1–0 | Raj Konwar | Round 4: de Boer, Willem - Raj Konwar, Daryan | Indian Defense | |
| — | de Boer | 0–1 | Helsby | Round 6: de Boer, Willem - Helsby, Matthew | Indian Defense | |
| — | de Boer | 0–1 | Pai | Round 8: de Boer, Willem - Pai, Sidhanth | Indian Defense | |
| — | de Boer | ½–½ | Narang | Round 9: de Boer, Willem - Narang, Ishaan | Grünfeld Defense: Brinckmann Attack, Grünfeld Gambit | |
| — | Devalia | ½–½ | de Boer | Round 1: Devalia, Aadishesh - de Boer, Willem | Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan | |
| — | Mulukutla | 1–0 | de Boer | Round 3: Mulukutla, Ayaansh - de Boer, Willem | Scandinavian Defense: Main Line | |
| — | Thomas Moran | ½–½ | de Boer | Round 5: Thomas Moran - de Boer, Willem | Queen's Gambit Declined | |
| — | Ren | 0–1 | de Boer | Round 7: Ren, Jason - de Boer, Willem | Queen's Pawn Game: Symmetrical Variation | |
