| 19 jul 2026 | Sulashvili, Malkhaz 2381 | Mesropyan, Hayk 2112 | 1-0 | D02 Apertura de Peón de Dama: Symmetrical Variation | 19th Paleochora International Tournament 2026 | 44 | Ver |
| 9 may 2026 | Mesropyan, Hayk 2134 | Baylav, Can 2052 | 0-1 | B92 Defensa Siciliana: Najdorf Variation, Opocensky Variation | rated rapid game | 47 | Ver |
| 9 may 2026 | Shakhzodova, Ozoda 2011 | Mesropyan, Hayk 2134 | 0-1 | D35 Gambito de Dama rehusado: Exchange Variation, Positional Variation | rated rapid game | 63 | Ver |
| 9 may 2026 | Mesropyan, Hayk 2134 | Elena, Eduardo 2088 | 1-0 | B59 Defensa Siciliana: Boleslavsky Variation | rated rapid game | 44 | Ver |
| 9 may 2026 | Mesropyan, Hayk 2134 | Menzi, Jonas 2155 | 1-0 | C90 Apertura Española (Ruy López): Closed, Pilnik Variation | rated rapid game | 66 | Ver |
| 8 feb 2026 | Nawalaniec, Adam 2283 | Mesropyan, Hayk 2146 | 1-0 | C78 Apertura Española (Ruy López): Morphy Defense | 4NCL Division 1 2025-2026 | 51 | Ver |
| 7 feb 2026 | Mesropyan, Hayk 2146 | O`Donnell, Conor 2306 | 0-1 | B30 Defensa Siciliana: Nyezhmetdinov-Rossolimo Attack | 4NCL Division 1 2025-2026 | 33 | Ver |
| 2 dic 2025 | Mesropyan, Hayk 2130 | Harley, Andrew D 2182 | 0-1 | C18 Defensa Francesa: Winawer Variation, Warsaw Variation | 2025 London Chess Classic | FIDE Open | 69 | Ver |
| 1 dic 2025 | Panjer, Sidney 2286 | Mesropyan, Hayk 2130 | 1-0 | A07 King's Indian Attack, with e6 | 2025 London Chess Classic | FIDE Open | 69 | Ver |
| 30 nov 2025 | Mesropyan, Hayk 2136 | Kovalskyi, Roman 2208 | 1-0 | B27 Defensa Siciliana: Hyperaccelerated Dragon | 2025 London Chess Classic | FIDE Open | 37 | Ver |
| 30 nov 2025 | Koster, Ramon 2302 | Mesropyan, Hayk 2136 | 1-0 | D37 Gambito de Dama rehusado: Harrwitz Attack, Main Line | 2025 London Chess Classic | FIDE Open | 45 | Ver |
| 29 nov 2025 | Li, Guohao 2348 | Mesropyan, Hayk 2136 | 1-0 | A13 Apertura Inglesa: Agincourt Defense, Wimpy System | 2025 London Chess Classic | FIDE Open | 53 | Ver |
| 28 nov 2025 | Mesropyan, Hayk 2136 | Willow, Jonah B 2472 | 0-1 | C18 Defensa Francesa: Winawer Variation, Advance Variation | 2025 London Chess Classic | FIDE Open | 40 | Ver |
| 28 nov 2025 | Schmider, Niklas 2423 | Mesropyan, Hayk 2136 | 0-1 | C78 Apertura Española (Ruy López): Morphy Defense, Neo-Arkhangelsk Variation | 2025 London Chess Classic | FIDE Open | 48 | Ver |
| 27 nov 2025 | Mesropyan, Hayk 2136 | Brunner, Nicolas 2420 | ½-½ | B51 Defensa Siciliana: Moscow Variation | 2025 London Chess Classic | FIDE Open | 62 | Ver |