33 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| De Jong, Jan-Willem | Van Batenburg, Mees | 1/2-1/2 | A96 | Round 9: De Jong, Jan-Willem - Van Batenburg, Mees | 2026-04-11 |
| De Jong, Jan-Willem | Kerigan, Demre | 1/2-1/2 | E90 | Round 4: De Jong, Jan-Willem - Kerigan, Demre | 2025-11-22 |
| De Jong, Jan-Willem | Zwirs, Nico | 1/2-1/2 | D37 | KNSB competitie 2025/2026 | 2025-11-07 |
| De Jong, Jan-Willem | Eggleston, David J | 1/2-1/2 | A14 | Round 6: De Jong, Jan-Willem - Eggleston, David J | 2025-10-24 |
| De Jong, Jan-Willem | Nogerbek, Kazybek | 1/2-1/2 | D35 | Round 3: De Jong, Jan-Willem - Nogerbek, Kazybek | 2025-10-21 |
| De Jong, Jan-Willem | Cordts, Ingo | 0-1 | E49 | Round 1: De Jong, Jan-Willem - Cordts, Ingo | 2025-10-19 |
| De Jong, Jan-Willem | Baltic, Fatih | 1-0 | A42 | Round 2: De Jong, Jan-Willem - Baltic, Fatih | 2025-10-04 |
| De Jong, Jan-Willem | Aravindhan, Achyuth | 1-0 | E73 | Round 9: De Jong, Jan-Willem - Aravindhan, Achyuth | 2025-05-13 |
| De Jong, Jan-Willem | Van Roon, Sjoerd | 0-1 | D11 | KNSB Meesterklasse 2024-2025 | 2024-11-23 |
| De Jong, Jan-Willem | Piceu, Tom | 1-0 | E94 | Round 3: De Jong, Jan-Willem - Piceu, Tom | 2024-11-09 |
| De Jong, Jan-Willem | Stocek, Jiri | 1-0 | E32 | Round 7: De Jong, Jan-Willem - Stocek, Jiri | 2024-10-26 |
| De Jong, Jan-Willem | Filipovic, Slobodan J | 1-0 | D32 | 39th European Chess Club Cup | 2024-10-24 |
| De Jong, Jan-Willem | Mamedyarov, Shakhriyar | 0-1 | D37 | Round 2: De Jong, Jan-Willem - Mamedyarov, Shakhriyar | 2024-10-21 |
| De Jong, Jan-Willem | Ondersteijn, Niels | 1/2-1/2 | E62 | European Chess Club Cup 2023 | 2023-10-06 |
| De Jong, Jan-Willem | Carnicelli, Valerio | 0-1 | E68 | European Chess Club Cup 2023 | 2023-10-03 |
| De Jong, Jan-Willem | Cahen, Alexis | 1-0 | A37 | European Chess Club Cup 2023 | 2023-10-01 |