| 1 jul 2026 | Markzon, Gregory 2066 | Ghaem Maghami, Ehsan 2445 | 0-1 | E26 Defensa Nimzoindia: Sämisch Variation | 54th World Open - 2026 | 38 | Ver |
| 1 abr 2026 | Markzon, Gregory 2089 | Kevlishvili, Robby 2518 | 0-1 | A13 Apertura Inglesa: Agincourt Defense | The Atlantic City Open | 53 | Ver |
| 1 nov 2025 | Zapata, Alonso 2263 | Markzon, Gregory 2079 | 1-0 | C04 Defensa Francesa: Tarrasch Variation, Guimard Defense, Main Line | FIDE World Senior Championship 2025 | Open 65+ | 26 | Ver |
| 30 oct 2025 | Pogorelov, Ruslan 2258 | Markzon, Gregory 2079 | 1-0 | E94 Defensa India de Rey: Orthodox Variation, Glek Defense | FIDE World Senior Championship 2025 | Open 65+ | 41 | Ver |
| 28 oct 2025 | Chapman, Terry P D 2257 | Markzon, Gregory 2079 | 1-0 | E71 Defensa India de Rey: Karpov System | FIDE World Senior Championship 2025 | Open 65+ | 38 | Ver |
| 26 oct 2025 | Markzon, Gregory 2079 | Binham, Timothy F. 2227 | ½-½ | A05 Ataque Indio de Rey | FIDE World Senior Championship 2025 | Open 65+ | 24 | Ver |
| 25 oct 2025 | Kozlov, Oleg 2253 | Markzon, Gregory 2079 | ½-½ | A05 Apertura Zukertort: Nimzo-Larsen Variation | FIDE World Senior Championship 2025 | Open 65+ | 84 | Ver |
| 23 oct 2025 | Van Riemsdijk, Herman C. 2236 | Markzon, Gregory 2079 | 1-0 | B90 Defensa Siciliana: Najdorf Variation, Lipnitsky Attack | FIDE World Senior Championship 2025 | Open 65+ | 44 | Ver |
| 22 oct 2025 | Markzon, Gregory 2079 | Nasybullin, Vladislav 2305 | 1-0 | B15 Defensa Caro-Kann: Tartakower Variation | FIDE World Senior Championship 2025 | Open 65+ | 40 | Ver |