| 21 ago 2026 | Blackburn, Jonathan L B 2220 | Grieve, Harry 2508 | 0-1 | D35 Queen's Gambit Declined: Exchange Variation, Positional Variation | Harry Lamb Memorial | Manchester Summer Congress FIDE OPEN 2026 | 47 | Ver |
| 21 ago 2026 | Grieve, Harry 2508 | Larchikov, Maksym 2225 | 1-0 | C42 Petrov's Defense: Nimzowitsch Attack | Harry Lamb Memorial | Manchester Summer Congress FIDE OPEN 2026 | 47 | Ver |
| 21 ago 2026 | Wall, Tim P 2148 | Grieve, Harry 2508 | 0-1 | D01 Rapport-Jobava System, with e6 | Harry Lamb Memorial | Manchester Summer Congress FIDE OPEN 2026 | 35 | Ver |
| 21 ago 2026 | Grieve, Harry 2508 | Surtees, Mike J 2043 | 1-0 | B06 Modern Defense: Standard Line | Harry Lamb Memorial | Manchester Summer Congress FIDE OPEN 2026 | 53 | Ver |
| 13 ago 2026 | Grieve, Harry 2508 | Garcia Blanco, Omar 2375 | ½-½ | C02 French Defense: Advance Variation, Milner-Barry Gambit, Hector Variation | CECLUB_2D | 61 | Ver |
| 13 ago 2026 | Merario Alarcon, Andres 2416 | Grieve, Harry 2508 | ½-½ | C11 French Defense: Steinitz Variation, Boleslavsky Variation | CECLUB_2D | 30 | Ver |
| 12 ago 2026 | Grieve, Harry 2508 | Balbuena Fuentes, Mario 2317 | 1-0 | C02 French Defense: Advance Variation, Paulsen Attack | CECLUB_2D | 42 | Ver |
| 12 ago 2026 | Plazuelo Pascual, Juan 2446 | Grieve, Harry 2508 | ½-½ | C13 French Defense: Classical Variation | CECLUB_2D | 33 | Ver |
| 11 ago 2026 | Grieve, Harry 2508 | Serrano Almendros, Angel 2333 | 0-1 | C02 French Defense: Advance Variation, Paulsen Attack | CECLUB_2D | 48 | Ver |
| 11 ago 2026 | Navarro Martinez, Victor 2256 | Grieve, Harry 2508 | 1-0 | D53 Queen's Gambit Declined | CECLUB_2D | 53 | Ver |
| 8 ago 2026 | Grieve, Harry 2508 | Roberson, Peter T 2439 | 1-0 | B90 Sicilian Defense: Najdorf Variation | 2026 British Chess Championships: Championship | 56 | Ver |
| 7 ago 2026 | Adams, Michael 2595 | Grieve, Harry 2508 | ½-½ | C13 French Defense: Classical Variation | 2026 British Chess Championships: Championship | 55 | Ver |
| 5 ago 2026 | Grieve, Harry 2508 | Harvey, Marcus R 2470 | 1-0 | B12 Caro-Kann Defense: Advance Variation, Bronstein Variation | 2026 British Chess Championships: Championship | 42 | Ver |
| 4 ago 2026 | Han, Yichen 2421 | Grieve, Harry 2508 | ½-½ | C11 French Defense: Classical Variation, Swiss Variation | 2026 British Chess Championships: Championship | 22 | Ver |
| 3 ago 2026 | Grieve, Harry 2508 | Vijayakumar, Rishi 2315 | 1-0 | C72 Ruy Lopez: Morphy Defense, Modern Steinitz Defense | 2026 British Chess Championships: Championship | 47 | Ver |
| 2 ago 2026 | Shearsby, Jude 2243 | Grieve, Harry 2505 | 0-1 | C01 French Defense: Exchange Variation | 2026 British Chess Championships: Championship | 71 | Ver |
| 1 ago 2026 | Grieve, Harry 2505 | Blackburn, Jonathan L B 2220 | 1-0 | C02 French Defense: Advance Variation, Euwe Variation | 2026 British Chess Championships: Championship | 33 | Ver |
| 18 jul 2026 | Alsina Leal, Daniel 2488 | Grieve, Harry 2505 | ½-½ | B44 Sicilian Defense: Taimanov Variation | 1� Divis�o | 42 | Ver |
| 17 jul 2026 | Royal, Shreyas 2514 | Grieve, Harry 2508 | 1-0 | D35 Queen's Gambit Declined: Exchange Variation, Positional Variation | 2026 British Chess Championships: Championship | 54 | Ver |
| 17 jul 2026 | Bazakutsa, Svyatoslav 2488 | Grieve, Harry 2508 | ½-½ | A13 English Opening: Agincourt Defense | 2026 British Chess Championships: Championship | 61 | Ver |