83 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Lomasov, Semyon | Ai, Evan | 0-1 | C02 | Round 1: Lomasov, Semyon - Ai, Evan | 2026-01-01 |
| Lomasov, Semyon | De Silva, L M S T | 1/2-1/2 | C55 | Round 5: Lomasov, Semyon - De Silva, L M S T | 2025-01-04 |
| Lomasov, Semyon | Lin, Dachey | 1-0 | C02 | Round 2: Lomasov, Semyon - Lin, Dachey | 2025-01-03 |
| Lomasov, Semyon | Murzin, Volodar | 1/2-1/2 | C50 | FIDE World Blitz Chess Championship 2024 | 2024-12-30 |
| Lomasov, Semyon | Risteski, Emil | 1-0 | B30 | FIDE World Blitz Chess Championship 2024 | 2024-12-30 |
| Lomasov, Semyon | Lu, Shanglei | 1/2-1/2 | B40 | FIDE World Blitz Chess Championship 2024 | 2024-12-30 |
| Lomasov, Semyon | Oparin, Grigoriy | 0-1 | B45 | FIDE World Blitz Chess Championship 2024 | 2024-12-30 |
| Lomasov, Semyon | Salem, A.R. Saleh | 1-0 | B50 | FIDE World Blitz Chess Championship 2024 | 2024-12-30 |
| Lomasov, Semyon | Deac, Bogdan-Daniel | 1/2-1/2 | B12 | FIDE World Blitz Chess Championship 2024 | 2024-12-30 |
| Lomasov, Semyon | Bortnyk, Olexandr | 0-1 | C41 | FIDE World Rapid Chess Championship 2024 | 2024-12-28 |
| Lomasov, Semyon | Brodsky, David | 1/2-1/2 | C42 | FIDE World Rapid Chess Championship 2024 | 2024-12-28 |
| Lomasov, Semyon | So, Wesley | 1/2-1/2 | C55 | FIDE World Rapid Chess Championship 2024 | 2024-12-27 |
| Lomasov, Semyon | Ohanyan, Emin | 1/2-1/2 | B40 | FIDE World Rapid Chess Championship 2024 | 2024-12-26 |
| Lomasov, Semyon | Mamedyarov, Shakhriyar | 0-1 | C55 | FIDE World Rapid Chess Championship 2024 | 2024-12-26 |
| Lomasov, Semyon | Adewumi, Tanitoluwa | 1-0 | B40 | FIDE World Rapid Chess Championship 2024 | 2024-12-26 |
| Lomasov, Semyon | Maxim Novik | 1/2-1/2 | C50 | Round 8: Lomasov, Semyon - Maxim Novik | 2024-03-31 |
| Lomasov, Semyon | Huston, Gus | 1-0 | B62 | Round 6: Lomasov, Semyon - Huston, Gus | 2024-03-30 |
| Lomasov, Semyon | Mardov, Dimitar | 1/2-1/2 | C55 | Round 4: Lomasov, Semyon - Mardov, Dimitar | 2024-03-29 |
| Lomasov, Semyon | Shlyakhtenko, Robert | 1/2-1/2 | B40 | Round 3: Lomasov, Semyon - Shlyakhtenko, Robert | 2024-03-28 |
| Lomasov, Semyon | Zilka, Stepan | 1/2-1/2 | C50 | Round 1: Lomasov, Semyon - Zilka, Stepan | 2024-03-27 |
| Lomasov, Semyon | Pakleza, Zbigniew | 1/2-1/2 | B12 | Icelandic Team Championship | 2024-03-01 |
| Lomasov, Semyon | Mikaelyan, Arman | 1-0 | B35 | 2023 Summer Chess Classic | Group B | 2023-08-10 |
| Lomasov, Semyon | Wang, Justin | 1-0 | C43 | 2023 Summer Chess Classic | Group B | 2023-08-08 |
| Lomasov, Semyon | Hong, Andrew | 1/2-1/2 | C50 | 2023 Summer Chess Classic | Group B | 2023-08-06 |
| Lomasov, Semyon | Batsuren, Dambasuren | 1-0 | C56 | 2023 Summer Chess Classic | Group B | 2023-08-03 |
| Lomasov, Semyon | Jonsson, Bjorgvin | 1-0 | B35 | Icelandic Team Championship | 2023-03-17 |
| Lomasov, Semyon | Dziuba, Marcin | 1-0 | B62 | Icelandic Team Championship | 2022-10-15 |
| Lomasov, Semyon | Heimisson, Hilmir Freyr | 1-0 | C02 | Icelandic Team Championship | 2022-10-14 |
| Lomasov, Semyon | Tadic, Stefan | 1-0 | B35 | 36th European Club Cup | 2021-09-24 |
| Lomasov, Semyon | Rublevsky, Sergei | 1-0 | B41 | 36th European Club Cup | 2021-09-22 |
| Lomasov, Semyon | Ertan, Can | 1-0 | E15 | 36th European Club Cup | 2021-09-21 |
| Lomasov, Semyon | Ponkratov, Pavel | 1/2-1/2 | C15 | 36th European Club Cup | 2021-09-19 |
| Lomasov, Semyon | Michalik, Peter | 1/2-1/2 | C42 | Skalica Open - GM | 2021-08-29 |
| Lomasov, Semyon | Brhel, Jan | 1-0 | C55 | Skalica Open - GM | 2021-08-27 |
| Lomasov, Semyon | Korobov, Anton | 0-1 | B48 | Skalica Open - GM | 2021-08-25 |
| Lomasov, Semyon | Sahidi, Samir | 1-0 | B48 | Skalica Open - GM | 2021-08-23 |
| Lomasov, Semyon | Mendonca, Leon Luke | 0-1 | B23 | Skalica Open - GM | 2021-08-21 |
| Lomasov, Semyon | Can, Isik | 1-0 | B12 | European Hybrid World Cup Qualifier | 2021-05-24 |
| Lomasov, Semyon | Anton Guijarro, David | 0-1 | B12 | European Hybrid Qualification for the FIDE World Cup | 2021-05-24 |
| Lomasov, Semyon | Kazakouski, Valery | 0-1 | C50 | Icelandic Team Championship |