| 24 ago 2026 | Diachek, Andrii 2294 | Marchenko, Artem 2227 | 1-0 | B42 Defensa Siciliana: Kan Variation, Modern Variation | Yuriy Rastryopin Memorial 2026 (IM norm) | 36 | Ver |
| 23 ago 2026 | Baranciuc, Alexandr 2291 | Diachek, Andrii 2294 | 1-0 | A06 Apertura Zukertort | Yuriy Rastryopin Memorial 2026 (IM norm) | 43 | Ver |
| 22 ago 2026 | Diachek, Andrii 2294 | Domanskiy, Mykola 2303 | ½-½ | E06 Apertura Catalana: Closed | Yuriy Rastryopin Memorial 2026 (IM norm) | 67 | Ver |
| 21 ago 2026 | Karvatskyi, Oleksii 2351 | Diachek, Andrii 2294 | 1-0 | B32 Defensa Siciliana: Kalashnikov Variation | Yuriy Rastryopin Memorial 2026 (IM norm) | 33 | Ver |
| 21 ago 2026 | Diachek, Andrii 2294 | Alexikov, Alexander 2099 | ½-½ | A54 Defensa India Antigua: Two Knights Variation | Yuriy Rastryopin Memorial 2026 (IM norm) | 31 | Ver |
| 20 ago 2026 | Terletsky, Oleg 2160 | Diachek, Andrii 2294 | 1-0 | B32 Defensa Siciliana: Kalashnikov Variation | Yuriy Rastryopin Memorial 2026 (IM norm) | 39 | Ver |
| 19 ago 2026 | Diachek, Andrii 2294 | Kislinsky, Alexey 2313 | ½-½ | B38 Defensa Siciliana: Accelerated Dragon, Maróczy Bind | Yuriy Rastryopin Memorial 2026 (IM norm) | 32 | Ver |
| 19 ago 2026 | Frankiv, Oleksandr 2053 | Diachek, Andrii 2294 | ½-½ | B30 Defensa Siciliana: Old Sicilian | Yuriy Rastryopin Memorial 2026 (IM norm) | 72 | Ver |
| 19 ago 2026 | Dyachuk, Artem 2376 | Diachek, Andrii 2294 | 1-0 | C85 Apertura Española (Ruy López): Closed, Delayed Exchange | Yuriy Rastryopin Memorial 2026 (IM norm) | 48 | Ver |
| 17 ago 2026 | Diachek, Andrii 2295 | Khrinovskyi, Yurii 2132 | 1-0 | A13 Apertura Inglesa: Agincourt Defense, Bogoljubow Defense | Ukrainian Chess Stars Cup - 2 stage | Rapid | Open | 62 | Ver |
| 17 ago 2026 | Brodsky, Michail 2472 | Diachek, Andrii 2295 | ½-½ | E11 Defensa Bogoindia: Nimzowitsch Variation | Ukrainian Chess Stars Cup - 2 stage | Rapid | Open | 49 | Ver |
| 17 ago 2026 | Diachek, Andrii 2295 | Shykyravyi, Denys 2026 | 1-0 | A15 Apertura Inglesa: Anglo-Indian Defense, King's Indian Formation | Ukrainian Chess Stars Cup - 2 stage | Rapid | Open | 32 | Ver |
| 17 ago 2026 | Diachek, Andrii 2295 | Tretyak, Kyryl 2126 | ½-½ | E05 Apertura Catalana: Open Defense, Classical Line | Ukrainian Chess Stars Cup - 2 stage | Rapid | Open | 54 | Ver |
| 13 jul 2026 | Diachek, Andrii 2350 | Madejski, Milosz 2216 | 1-0 | E04 Apertura Catalana: Open Defense | Blitz C14 | 40 | Ver |
| 12 jul 2026 | Diachek, Andrii 2181 | Bilochenko, Matvii 2036 | 1-0 | A25 Apertura Inglesa: King's English Variation, Reversed Closed Sicilian | Rapid C14 | 51 | Ver |
| 12 jul 2026 | Diachek, Andrii 2181 | Pawlicz, Filip 2068 | 0-1 | A21 Apertura Inglesa: King's English Variation, Reversed Sicilian | Rapid C14 | 37 | Ver |
| 12 jul 2026 | Strus, Mateusz 2047 | Diachek, Andrii 2181 | 0-1 | E30 Defensa Nimzoindia: Leningrad Variation | Rapid C14 | 62 | Ver |
| 11 jul 2026 | Diachek, Andrii 2181 | Kiszkiel, Oskar 2236 | ½-½ | A15 Apertura Inglesa: Anglo-Indian Defense, King's Indian Formation | Rapid C14 | 22 | Ver |
| 10 jul 2026 | Chiszko, Oskar 2304 | Diachek, Andrii 2350 | ½-½ | A46 Defensa India: Knights Variation | Blitz C14 | 58 | Ver |
| 10 jul 2026 | Kiszkiel, Oskar 2229 | Diachek, Andrii 2350 | 0-1 | A07 Ataque Indio de Rey: Keres Variation | Blitz C14 | 40 | Ver |