19 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| de Boer, Willem | Kovalskyi, Roman | 0-1 | A01 | Round 3: de Boer, Willem - Kovalskyi, Roman | 2025-12-06 |
| de Boer, Willem | Pai, Sidhanth | 0-1 | A45 | Round 8: de Boer, Willem - Pai, Sidhanth | 2025-08-02 |
| de Boer, Willem | Narang, Ishaan | 1/2-1/2 | D83 | Round 9: de Boer, Willem - Narang, Ishaan | 2025-08-02 |
| de Boer, Willem | Abraham, Benjamin Thomas | 1-0 | A45 | Round 2: de Boer, Willem - Abraham, Benjamin Thomas | 2025-08-01 |
| de Boer, Willem | Raj Konwar, Daryan | 1-0 | A45 | Round 4: de Boer, Willem - Raj Konwar, Daryan | 2025-08-01 |
| de Boer, Willem | Helsby, Matthew | 0-1 | A45 | Round 6: de Boer, Willem - Helsby, Matthew | 2025-08-01 |
| de Boer, Willem | Ford, Nikodem | 0-1 | D00 | Round 2: de Boer, Willem - Ford, Nikodem | 2025-07-31 |
| de Boer, Willem | Wang, Hantin | 1/2-1/2 | A40 | Round 4: de Boer, Willem - Wang, Hantin | 2025-07-31 |
| de Boer, Willem | Tyning Cheng | 1-0 | D00 | Round 6: de Boer, Willem - Tyning Cheng | 2025-07-31 |
| de Boer, Willem | Raj Konwar, Daryan | 0-1 | B23 | Round 8: de Boer, Willem - Raj Konwar, Daryan | 2025-07-31 |