| 14 ago 2026 | Tregubenko, Nikolay 2265 | Assylov, Miras 2399 | ½-½ | C92 Apertura Española (Ruy López): Closed, Flohr System | Budapest One WeekGMB | 14 | Ver |
| 13 ago 2026 | Bai, Adelard 2449 | Tregubenko, Nikolay 2265 | 1-0 | E73 Defensa India de Rey: Semi-Averbakh System | Budapest One WeekGMB | 48 | Ver |
| 12 ago 2026 | Tregubenko, Nikolay 2265 | Berczes, David 2362 | ½-½ | C03 Defensa Francesa: Tarrasch Variation, Modern System | Budapest One WeekGMB | 32 | Ver |
| 12 ago 2026 | Iliaguev, Nisim 2379 | Tregubenko, Nikolay 2265 | 0-1 | E62 Defensa India de Rey: Fianchetto Variation, Carlsbad Variation | Budapest One WeekGMB | 52 | Ver |
| 11 ago 2026 | Tregubenko, Nikolay 2265 | Aveskulov, Valeriy 2487 | 0-1 | B30 Defensa Siciliana: Nyezhmetdinov-Rossolimo Attack | Budapest One WeekGMB | 26 | Ver |
| 10 ago 2026 | Shafer, Logan C 2328 | Tregubenko, Nikolay 2265 | 0-1 | C84 Apertura Española (Ruy López): Closed, Martinez Variation | Budapest One WeekGMB | 56 | Ver |
| 10 ago 2026 | Tregubenko, Nikolay 2265 | Sethuraman, Sandeep 2455 | 0-1 | B94 Defensa Siciliana: Najdorf Variation | Budapest One WeekGMB | 54 | Ver |
| 8 ago 2026 | Ambartsumian, Tyhran 2395 | Tregubenko, Nikolay 2265 | 1-0 | C84 Apertura Española (Ruy López): Closed, Martinez Variation | Budapest One WeekGMB | 71 | Ver |
| 8 ago 2026 | Horvath, Adam 2367 | Tregubenko, Nikolay 2265 | 1-0 | C55 Apertura Italiana: Two Knights Defense, Modern Bishop's Opening | Budapest One WeekGMB | 33 | Ver |
| 18 jul 2026 | Mendonca, Leon Luke 2616 | Tregubenko, Nikolay 2303 | 1-0 | C55 Apertura Italiana: Two Knights Defense, Modern Bishop's Opening | DOLE Open Aix-en-Provence 2026 | 37 | Ver |
| 30 jun 2026 | Tregubenko, Nikolay 2303 | Shinkorenko, Ivan Al 2091 | ½-½ | B75 Defensa Siciliana: Dragon Variation, Yugoslav Attack, Hungarian Dragon | 12th Cesme International Open Chess Tournament | 77 | Ver |
| 30 jun 2026 | Tutuncu, Ali 2129 | Tregubenko, Nikolay 2303 | ½-½ | A15 Apertura Inglesa: Anglo-Indian Defense, Queen's Indian Formation | 12th Cesme International Open Chess Tournament | 28 | Ver |
| 29 jun 2026 | Tregubenko, Nikolay 2303 | Rasulov, Vugar 2533 | 0-1 | C47 Apertura de los Cuatro Caballos: Scotch Variation Accepted | 12th Cesme International Open Chess Tournament | 39 | Ver |
| 6 abr 2026 | Costa, Leonardo 2556 | Tregubenko, Nikolay 2303 | 1-0 | C55 Apertura Italiana: Two Knights Defense, Modern Bishop's Opening | Grenke Chess Festival 2026 Open | 33 | Ver |
| 4 abr 2026 | Tregubenko, Nikolay 2303 | Zeng, Chongsheng 2546 | ½-½ | B42 Defensa Siciliana: Kan Variation, Modern Variation | Grenke Chess Festival 2026 Open | 90 | Ver |