28 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Dette, Jan | Gallasch, Robin | 0-1 | B01 | Round 7: Dette, Jan - Gallasch, Robin | 2026-01-03 |
| Dette, Jan | Cederholm, Axel | 1-0 | B15 | Round 1: Dette, Jan - Cederholm, Axel | 2025-12-31 |
| Dette, Jan | Berezovskii, Arina | 1-0 | B11 | Round 3: Dette, Jan - Berezovskii, Arina | 2025-12-31 |
| Dette, Jan | KHASCHULUU, Sergelenbaatar | 1-0 | B52 | Round 5: Dette, Jan - KHASCHULUU, Sergelenbaatar | 2025-12-31 |
| Dette, Jan | Pick, Freddie | 1-0 | B23 | 98th Caplin Hastings Masters 2024 | 2025-01-02 |
| Dette, Jan | Miller, Daniel | 1/2-1/2 | B23 | 98th Caplin Hastings Masters 2024 | 2024-12-31 |
| Dette, Jan | Sasikumar, Srivathsan | 0-1 | B23 | 98th Caplin Hastings Masters 2024 | 2024-12-30 |
| Dette, Jan | Jukes, Sam | 1-0 | C44 | 98th Caplin Hastings Masters 2024 | 2024-12-29 |
| Dette, Jan | Payne, Matthew J | 1/2-1/2 | C07 | Caplin Hastings Masters 2022 | 2023-01-05 |
| Dette, Jan | Miller, George I | 1-0 | D32 | Caplin Hastings Masters 2022 | 2023-01-02 |
| Dette, Jan | Jakhria, Kushal | 1-0 | B22 | Caplin Hastings Masters 2022 | 2023-01-01 |
| Dette, Jan | Southcott-Moyers, Indy | 1/2-1/2 | C54 | Caplin Hastings Masters 2022 | 2022-12-30 |
| Dette, Jan | Hebden, Mark L | 1/2-1/2 | C56 | Caplin Hastings Masters 2022 | 2022-12-28 |