| Jan 1, 2026 | Lomasov | 0–1 | Ai | Round 1: Lomasov, Semyon - Ai, Evan | French Defense: Advance Variation, Euwe Variation | |
| Jan 5, 2025 | Macovei | ½–½ | Lomasov | Round 6: Macovei, Andrei - Lomasov, Semyon | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Jan 4, 2025 | Lomasov | ½–½ | De Silva | Round 5: Lomasov, Semyon - De Silva, L M S T | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jan 4, 2025 | Liang | 0–1 | Lomasov | Round 4: Liang, Awonder - Lomasov, Semyon | French Defense: Exchange Variation | |
| Jan 3, 2025 | Lomasov | 1–0 | Lin | Round 2: Lomasov, Semyon - Lin, Dachey | French Defense: Advance Variation, Euwe Variation | |
| Jan 3, 2025 | Bruzon Batista | ½–½ | Lomasov | Round 3: Bruzon Batista, Lazaro - Lomasov, Semyon | French Defense: Tarrasch Variation, Chistyakov Defense | |
| Jan 2, 2025 | Singh | ½–½ | Lomasov | Round 1: Singh, Hersh - Lomasov, Semyon | Kangaroo Defense | |
| Dec 30, 2024 | Lomasov | ½–½ | Murzin | FIDE World Blitz Chess Championship 2024 | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| Dec 30, 2024 | Lomasov | 1–0 | Risteski | FIDE World Blitz Chess Championship 2024 | Sicilian Defense: Old Sicilian | |
| Dec 30, 2024 | Lomasov | ½–½ | Lu | FIDE World Blitz Chess Championship 2024 | Sicilian Defense: Four Knights Variation | |
| Dec 30, 2024 | Lomasov | 0–1 | Oparin | FIDE World Blitz Chess Championship 2024 | Sicilian Defense: Taimanov Variation, Normal Variation | |
| Dec 30, 2024 | Lomasov | 1–0 | Salem | FIDE World Blitz Chess Championship 2024 | Sicilian Defense: Modern Variations | |
| Dec 30, 2024 | Lomasov | ½–½ | Deac | FIDE World Blitz Chess Championship 2024 | Caro-Kann Defense: Advance Variation | |
| Dec 30, 2024 | Andriasian | 1–0 | Lomasov | FIDE World Blitz Chess Championship 2024 | French Defense: King's Indian Attack | |
| Dec 30, 2024 | Benjamin | 0–1 | Lomasov | FIDE World Blitz Chess Championship 2024 | French Defense: Paulsen Variation | |
| Dec 30, 2024 | Vokhidov | 0–1 | Lomasov | FIDE World Blitz Chess Championship 2024 | French Defense: Paulsen Variation | |
| Dec 30, 2024 | Bok | ½–½ | Lomasov | FIDE World Blitz Chess Championship 2024 | Kangaroo Defense | |
| Dec 30, 2024 | Svane | ½–½ | Lomasov | FIDE World Blitz Chess Championship 2024 | English Opening: Symmetrical Variation, Rubinstein Variation | |
| Dec 30, 2024 | Paravyan | 0–1 | Lomasov | FIDE World Blitz Chess Championship 2024 | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Dec 28, 2024 | Lomasov | 0–1 | Bortnyk | FIDE World Rapid Chess Championship 2024 | Philidor Defense: Lion Variation | |
| Dec 28, 2024 | Lomasov | ½–½ | Brodsky | FIDE World Rapid Chess Championship 2024 | Petrov's Defense: Kaufmann Attack | |
| Dec 28, 2024 | Chasin | 1–0 | Lomasov | FIDE World Rapid Chess Championship 2024 | Zukertort Opening | |
| Dec 27, 2024 | Lomasov | ½–½ | So | FIDE World Rapid Chess Championship 2024 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Dec 27, 2024 | Yu | ½–½ | Lomasov | FIDE World Rapid Chess Championship 2024 | Nimzo-Indian Defense: St. Petersburg Variation, American Variation | |
| Dec 27, 2024 | Dubov | ½–½ | Lomasov | FIDE World Rapid Chess Championship 2024 | Bogo-Indian Defense: Grünfeld Variation | |
| Dec 27, 2024 | Xiong | ½–½ | Lomasov | FIDE World Rapid Chess Championship 2024 | Nimzo-Indian Defense: Three Knights Variation | |
| Dec 26, 2024 | Lomasov | ½–½ | Ohanyan | FIDE World Rapid Chess Championship 2024 | Sicilian Defense: Four Knights Variation | |
| Dec 26, 2024 | Lomasov | 0–1 | Mamedyarov | FIDE World Rapid Chess Championship 2024 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Dec 26, 2024 | Lomasov | 1–0 | Adewumi | FIDE World Rapid Chess Championship 2024 | Sicilian Defense: Four Knights Variation | |
| Dec 26, 2024 | Horvath | 0–1 | Lomasov | FIDE World Rapid Chess Championship 2024 | Zukertort Opening | |
| Mar 31, 2024 | Sethuraman | 0–1 | Lomasov | Round 9: Sethuraman, Sandeep - Lomasov, Semyon | Kangaroo Defense: Keres Defense, Transpositional Variation | |
| Mar 31, 2024 | Lomasov | ½–½ | Maxim Novik | Round 8: Lomasov, Semyon - Maxim Novik | Italian Game: Giuoco Pianissimo, Normal | |
| Mar 30, 2024 | Lu | ½–½ | Lomasov | Round 7: Lu, Maximillian - Lomasov, Semyon | English Opening: King's English Variation, Four Knights Variation, Flexible Line | |
| Mar 30, 2024 | Lomasov | 1–0 | Huston | Round 6: Lomasov, Semyon - Huston, Gus | Sicilian Defense: Richter-Rauzer Variation | |
| Mar 29, 2024 | Bortnyk | ½–½ | Lomasov | Round 5: Bortnyk, Mykola - Lomasov, Semyon | French Defense: Exchange Variation | |
| Mar 29, 2024 | Lomasov | ½–½ | Mardov | Round 4: Lomasov, Semyon - Mardov, Dimitar | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Mar 28, 2024 | Lomasov | ½–½ | Shlyakhtenko | Round 3: Lomasov, Semyon - Shlyakhtenko, Robert | Sicilian Defense: French Variation, Westerinen Attack | |
| Mar 28, 2024 | Aleksander Ostrovskiy | 0–1 | Lomasov | Round 2: Aleksander Ostrovskiy - Lomasov, Semyon | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Mar 27, 2024 | Lomasov | ½–½ | Zilka | Round 1: Lomasov, Semyon - Zilka, Stepan | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| Dec 30, 2024 | Aravindh | ½–½ | Lomasov | Round 11: Aravindh, Chithambaram VR. - Lomasov, Semyon | Queen's Pawn Game: Colle System | |
| Aug 10, 2023 | Lomasov | 1–0 | Mikaelyan | 2023 Summer Chess Classic | Group B | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Aug 9, 2023 | Jacobson | ½–½ | Lomasov | 2023 Summer Chess Classic | Group B | English Opening: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense | |
| Aug 8, 2023 | Lomasov | 1–0 | Wang | 2023 Summer Chess Classic | Group B | Petrov's Defense: Modern Attack, Center Variation | |
| Aug 7, 2023 | Lenderman | ½–½ | Lomasov | 2023 Summer Chess Classic | Group B | Queen's Indian Defense: Spassky System | |
| Aug 6, 2023 | Lomasov | ½–½ | Hong | 2023 Summer Chess Classic | Group B | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| Aug 5, 2023 | Chandra | ½–½ | Lomasov | 2023 Summer Chess Classic | Group B | English Opening: King's English Variation | |
| Aug 4, 2023 | Moradiabadi | ½–½ | Lomasov | 2023 Summer Chess Classic | Group B | Bogo-Indian Defense: Grünfeld Variation | |
| Aug 3, 2023 | Lomasov | 1–0 | Batsuren | 2023 Summer Chess Classic | Group B | Italian Game: Scotch Gambit, Max Lange Attack | |
| Aug 2, 2023 | Budisavljevic | 0–1 | Lomasov | 2023 Summer Chess Classic | Group B | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Mar 19, 2023 | Kjartansson | ½–½ | Lomasov | Icelandic Team Championship | Queen's Gambit Accepted: Classical Defense, Main Line | |
| Mar 18, 2023 | Thybo | 1–0 | Lomasov | Icelandic Team Championship | King's Indian Attack | |
| Mar 18, 2023 | Gajewski | ½–½ | Lomasov | Icelandic Team Championship | Queen's Gambit Accepted: Classical Defense, Main Line | |
| Mar 17, 2023 | Lomasov | 1–0 | Jonsson | Icelandic Team Championship | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Oct 16, 2022 | Oleksiyenko | 1–0 | Lomasov | Icelandic Team Championship | French Defense: Tarrasch Variation, Open System, Euwe-Keres Line | |
| Oct 15, 2022 | Lomasov | 1–0 | Dziuba | Icelandic Team Championship | Sicilian Defense: Richter-Rauzer Variation | |
| Oct 15, 2022 | Steingrimsson | ½–½ | Lomasov | Icelandic Team Championship | English Opening: King's English Variation | |
| Oct 14, 2022 | Lomasov | 1–0 | Heimisson | Icelandic Team Championship | French Defense: Advance Variation, Wade Variation | |
| Sep 24, 2021 | Lomasov | 1–0 | Tadic | 36th European Club Cup | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Sep 23, 2021 | Thybo | 1–0 | Lomasov | 36th European Club Cup | Kangaroo Defense | |
| Sep 22, 2021 | Lomasov | 1–0 | Rublevsky | 36th European Club Cup | Sicilian Defense: Kan Variation | |
| Sep 21, 2021 | Lomasov | 1–0 | Ertan | 36th European Club Cup | Queen's Indian Defense: Fianchetto Variation, Check Variation, Intermezzo Line | |
| Sep 20, 2021 | Lobersli | 0–1 | Lomasov | 36th European Club Cup | French Defense: Steinitz Variation | |
| Sep 19, 2021 | Lomasov | ½–½ | Ponkratov | 36th European Club Cup | French Defense: Winawer Variation, Delayed Exchange Variation | |
| Sep 18, 2021 | Rasti | * | Lomasov | 36th European Club Cup | ? | |
| Aug 29, 2021 | Lomasov | ½–½ | Michalik | Skalica Open - GM | Petrov's Defense: Kaufmann Attack | |
| Aug 28, 2021 | Vykouk | 0–1 | Lomasov | Skalica Open - GM | French Defense: Tarrasch Variation, Chistyakov Defense | |
| Aug 27, 2021 | Lomasov | 1–0 | Brhel | Skalica Open - GM | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Aug 26, 2021 | Kostolansky | 0–1 | Lomasov | Skalica Open - GM | French Defense: Winawer Variation, Delayed Exchange Variation | |
| Aug 25, 2021 | Lomasov | 0–1 | Korobov | Skalica Open - GM | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Aug 24, 2021 | Bernadskiy | 1–0 | Lomasov | Skalica Open - GM | Queen's Gambit Accepted: Showalter Variation | |
| Aug 23, 2021 | Lomasov | 1–0 | Sahidi | Skalica Open - GM | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Aug 22, 2021 | Movsesian | ½–½ | Lomasov | Skalica Open - GM | French Defense: Burn Variation | |
| Aug 21, 2021 | Lomasov | 0–1 | Mendonca | Skalica Open - GM | Sicilian Defense: Closed | |
| May 26, 2021 | Anton Guijarro | ½–½ | Lomasov | European Hybrid World Cup Qualifier | Queen's Gambit Accepted: Mannheim Variation | |
| May 25, 2021 | Can | ½–½ | Lomasov | European Hybrid World Cup Qualifier | Ruy Lopez: Closed | |
| May 24, 2021 | Lomasov | 1–0 | Can | European Hybrid World Cup Qualifier | Caro-Kann Defense: Advance Variation | |
| May 24, 2021 | Lomasov | 0–1 | Anton Guijarro | European Hybrid Qualification for the FIDE World Cup | Caro-Kann Defense: Advance Variation | |
| — | Lomasov | 0–1 | Kazakouski | Icelandic Team Championship | Italian Game: Paris Defense | |
| — | Lomasov | ½–½ | Pakleza | Icelandic Team Championship | Caro-Kann Defense: Advance Variation, Tal Variation | |
| — | Heimisson | 0–1 | Lomasov | Icelandic Team Championship | Kangaroo Defense: Keres Defense, Transpositional Variation | |
| — | Kjartansson | ½–½ | Lomasov | Icelandic Team Championship | English Opening: Symmetrical Variation, Rubinstein Variation | |
| — | Gretarsson | ½–½ | Lomasov | Icelandic Team Championship | Tarrasch Defense: Symmetrical Variation | |
| — | Lodici | 0–1 | Lomasov | FIDE World Rapid Chess Championship 2024 | Kangaroo Defense | |
| — | Madaminov | 1–0 | Lomasov | FIDE World Rapid Chess Championship 2024 | French Defense: Exchange Variation | |