22 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Leon Niemeijer | Edwin Zuiderweg | 0-1 | D85 | Round 7: Leon Niemeijer - Edwin Zuiderweg | 2023-10-26 |
| Leon Niemeijer | Frans Helmond | 1-0 | E00 | Round 5: Leon Niemeijer - Frans Helmond | 2023-10-25 |
| Niemeijer, Leon | Veraart, Jan | 1/2-1/2 | D30 | NJSK 2023 Jeugd B | 2023-05-06 |
| Niemeijer, Leon | Van Hesselingen, Guido | 0-1 | E05 | NJSK 2023 Jeugd B | 2023-05-04 |
| Niemeijer, Leon | Van Arendonk, Polle | 0-1 | D85 | NJSK 2023 Jeugd B | 2023-05-02 |
| Niemeijer, Leon | Knippenberg, Hidde | 1-0 | A53 | NJSK 2023 Jeugd B | 2023-04-30 |
| Leon Niemeijer | Taco Van De Poel | 1-0 | D85 | Round 9: Leon Niemeijer - Taco Van De Poel | 2022-10-22 |
| Leon Niemeijer | Oscar Klaren | 0-1 | A67 | Round 7: Leon Niemeijer - Oscar Klaren | 2022-10-20 |
| Leon Niemeijer | Torsten Warnk | 1-0 | D30 | Round 5: Leon Niemeijer - Torsten Warnk | 2022-10-19 |
| Leon Niemeijer | Marcus Dehn | 1/2-1/2 | E00 | Round 3: Leon Niemeijer - Marcus Dehn | 2022-10-17 |
| Leon Niemeijer | Rene Duchene | 0-1 | D34 | Round 1: Leon Niemeijer - Rene Duchene | 2022-10-15 |