12 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Mastiuk, Ivan | Helmer, Jan | 1/2-1/2 | D52 | Heusenstamm Sparkassen Open 2025 | 2025-11-23 |
| Mastiuk, Ivan | Musiienko, Tymur | 1/2-1/2 | D37 | Heusenstamm Sparkassen Open 2025 | 2025-11-21 |
| Mastiuk, Ivan | Mueller, Maximilian | 1-0 | E35 | Heusenstamm Sparkassen Open 2025 | 2025-11-20 |
| Mastiuk, Ivan | Moisiiuk, Andrii | 0-1 | B75 | Round 3: Mastiuk, Ivan - Moisiiuk, Andrii | 2025-07-19 |
| Mastiuk, Ivan | Nedilko, Vasily | 0-1 | A50 | Round 6: Mastiuk, Ivan - Nedilko, Vasily | 2025-07-19 |
| Mastiuk, Ivan | Dehtiarov, Roman | 0-1 | E43 | Round 1: Mastiuk, Ivan - Dehtiarov, Roman | 2025-02-09 |
| Mastiuk, Ivan | Maximov, Dmitry | 1-0 | E73 | Round 1: Mastiuk, Ivan - Maximov, Dmitry | 2024-12-23 |
| Mastiuk, Ivan | Starozhilov, Leonid | 0-1 | E73 | Artem Sachuk Memorial 2024 | 2024-05-19 |