25 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Sidiropoulos, Nikolaos Ch. | Chalkias, Alexios | 1/2-1/2 | D12 | Round 6: Sidiropoulos, Nikolaos Ch. - Chalkias, Alexios | 2025-03-02 |
| NIKOLAOS SIDIROPOULOS | PANAGIOTIS KOSTAS | 1-0 | A13 | Finals: NIKOLAOS SIDIROPOULOS - PANAGIOTIS KOSTAS | 2023-06-11 |
| NIKOLAOS SIDIROPOULOS | DIMITRIOS-ALKIS KAFOROS | 1-0 | B10 | Semi-Finals: NIKOLAOS SIDIROPOULOS - DIMITRIOS-ALKIS KAFOROS | 2023-06-10 |
| Sidiropoulos, Nikolaos | Drakoulakos, Grigorios | 1/2-1/2 | A26 | National Greek Team Championship | 2022-08-16 |
| Sidiropoulos, Nikolaos | Anagnostopoulos, Konstantinos | 1/2-1/2 | E20 | National Greek Team Championship | 2022-08-15 |
| Sidiropoulos, Nikolaos | Leniart, Arkadiusz | 0-1 | E24 | 15th Paleochora Open | 2022-07-18 |
| Sidiropoulos, Nikolaos | Rousis, Mihail | 0-1 | E20 | Greek Team Championship | 2021-09-07 |
| Sidiropoulos, Nikolaos | Avramidou, Anastasia | 1/2-1/2 | D35 | 30th OPEN Chess International Tournament | 2021-08-08 |
| Sidiropoulos, Nikolaos | Theodorou, Nikolas | 0-1 | E20 | 30th OPEN Chess International Tournament | 2021-08-06 |
| Sidiropoulos, Nikolaos | Krallis, Christos | 1-0 | E20 | 30th OPEN Chess International Tournament | 2021-08-02 |
| Sidiropoulos, Nikolaos | Vrolijk, Liam | 0-1 | E20 | 30th OPEN Chess International Tournament | 2021-08-02 |