| 10 jun 2026 | Koziak, Vitali 2321 | Shuvalova, Polina 2492 | 1-0 | E20 Defensa Nimzoindia | Aktobe Open 2026 - Vladimir Dvorkovich Memorial | Masters | 47 | Ver |
| 9 jun 2026 | Xu, Ziyuan 2455 | Koziak, Vitali 2321 | 0-1 | C65 Apertura Española (Ruy López): Berlin Defense, Anti-Berlin Variation | Aktobe Open 2026 - Vladimir Dvorkovich Memorial | Masters | 56 | Ver |
| 8 jun 2026 | Koziak, Vitali 2321 | Nazari, Arad 2418 | ½-½ | D85 Defensa Grünfeld: Exchange Variation, Modern Exchange Variation | Aktobe Open 2026 - Vladimir Dvorkovich Memorial | Masters | 46 | Ver |
| 7 jun 2026 | Mamedov, Edgar 2464 | Koziak, Vitali 2321 | 1-0 | A37 Apertura Inglesa: Symmetrical Variation, Three Knights, Fianchetto Variation | Aktobe Open 2026 - Vladimir Dvorkovich Memorial | Masters | 86 | Ver |
| 6 jun 2026 | Koziak, Vitali 2321 | Ansat, Aldiyar 2485 | 0-1 | E68 Defensa India de Rey: Fianchetto Variation, Classical Variation | Aktobe Open 2026 - Vladimir Dvorkovich Memorial | Masters | 50 | Ver |
| 5 jun 2026 | Urazayev, Arystanbek 2488 | Koziak, Vitali 2321 | ½-½ | C24 Apertura de Alfil: Paulsen Defense | Aktobe Open 2026 - Vladimir Dvorkovich Memorial | Masters | 52 | Ver |
| 4 jun 2026 | Koziak, Vitali 2321 | Gholami Orimi, Mahdi 2530 | ½-½ | E47 Defensa Nimzoindia: Normal Variation | Aktobe Open 2026 - Vladimir Dvorkovich Memorial | Masters | 25 | Ver |
| 3 jun 2026 | Nogerbek, Kazybek 2513 | Koziak, Vitali 2321 | 0-1 | A05 Ataque Indio de Rey | Aktobe Open 2026 - Vladimir Dvorkovich Memorial | Masters | 48 | Ver |
| 25 mar 2026 | Koziak, Vitali 2336 | Begmuratov, Khumoyun 2473 | 0-1 | E73 Defensa India de Rey: Semi-Averbakh System | 19th Tashkent Open \"Agzamov Memorial\" A | 45 | Ver |
| 18 mar 2026 | Kong, Xiangrui 2518 | Koziak, Vitali 2336 | 1-0 | B76 Defensa Siciliana: Dragon Variation, Yugoslav Attack | 19th Tashkent Open \"Agzamov Memorial\" A | 47 | Ver |
| 16 nov 2025 | Rostovtsev, Dmitry 2446 | Koziak, Vitali 2331 | 1-0 | D30 Gambito de Dama rehusado | President’s Cup of the Republic of Tajikistan 2025 | Group A | 44 | Ver |
| 15 nov 2025 | Koziak, Vitali 2331 | Abdilkhair, Abilmansur 2387 | 1-0 | A16 Apertura Inglesa: Anglo-Indian Defense, Anglo-Grünfeld Variation | President’s Cup of the Republic of Tajikistan 2025 | Group A | 95 | Ver |
| 14 nov 2025 | Ayush Sharma 2468 | Koziak, Vitali 2331 | ½-½ | C67 Apertura Española (Ruy López): Berlin Defense, Rio Gambit Accepted | President’s Cup of the Republic of Tajikistan 2025 | Group A | 36 | Ver |
| 14 nov 2025 | Koziak, Vitali 2331 | Yeganegi, Barad 2386 | ½-½ | D35 Gambito de Dama rehusado: Exchange Variation, Sämisch Variation | President’s Cup of the Republic of Tajikistan 2025 | Group A | 23 | Ver |
| 13 nov 2025 | Yang, Zilong 2388 | Koziak, Vitali 2331 | ½-½ | B15 Defensa Caro-Kann: Tartakower Variation | President’s Cup of the Republic of Tajikistan 2025 | Group A | 107 | Ver |
| 12 nov 2025 | Koziak, Vitali 2331 | Volodin, Alexandr E. 2401 | 0-1 | A18 Apertura Inglesa: Mikenas-Carls Variation | President’s Cup of the Republic of Tajikistan 2025 | Group A | 45 | Ver |
| 10 nov 2025 | Koziak, Vitali 2331 | Sankalp Gupta 2557 | 0-1 | E48 Defensa Nimzoindia: Normal Variation, Classical Defense | President’s Cup of the Republic of Tajikistan 2025 | Group A | 43 | Ver |