| Jan 2, 2026 | V | 0–1 | Dennis | Round 5: V, Krish - Dennis, Nigel W | Sicilian Defense: Scheveningen Variation, Vitolins Variation | |
| Oct 25, 2025 | Dennis | ½–½ | Chan | Round 7: Dennis, Nigel W - Chan, Chi Yin Charles | Sicilian Defense: O'Kelly Variation, Maróczy Bind | |
| Oct 17, 2025 | Dennis | 1–0 | Owen | Round 3: Dennis, Nigel W - Owen, Garth I | Sicilian Defense: Dragon Variation, Classical Variation | |
| Oct 17, 2025 | Nevska | 1–0 | Dennis | Round 4: Nevska, Gerda - Dennis, Nigel W | English Opening: Anglo-Indian Defense | |
| Jul 31, 2024 | Di Mattia | 0–1 | Dennis | Round 3: Di Mattia, Luciano - Dennis, Nigel W | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Jul 29, 2024 | Hutchinson | 1–0 | Dennis | Round 1: Hutchinson, Paul A - Dennis, Nigel W | King's Indian Defense: Normal Variation, King's Knight Variation | |
| May 28, 2024 | Wall | 1–0 | Dennis | Round 7: Wall, Robert - Dennis, Nigel W | Indian Defense | |
| May 27, 2024 | Dennis | 0–1 | Hutchinson | Round 6: Dennis, Nigel W - Hutchinson, Norman A | Caro-Kann Defense: Panov-Botvinnik, Herzog Defense | |
| May 27, 2024 | Punnett | 1–0 | Dennis | Round 5: Punnett, Alan K - Dennis, Nigel W | Sicilian Defense: Moscow Variation, Haag Gambit | |
| May 26, 2024 | Dennis | 1–0 | Fleming | Round 4: Dennis, Nigel W - Fleming, Andrew S J | Ruy Lopez: Fianchetto Defense | |
| May 25, 2024 | Jerome | 0–1 | Dennis | Round 3: Jerome, Stellio - Dennis, Nigel W | Bird Opening: Dutch Variation | |
| May 25, 2024 | Dennis | ½–½ | Carpenter | Round 2: Dennis, Nigel W - Carpenter, David J | Modern Defense: Averbakh System | |
| May 24, 2024 | Page | 1–0 | Dennis | Round 1: Page, Mark E - Dennis, Nigel W | French Defense: Advance Variation, Paulsen Attack | |
| Oct 15, 2024 | Dennis | ½–½ | Finch | Round 3: Dennis, Nigel W - Finch, Russell | Nimzowitsch Defense: Kennedy Variation, Linksspringer Variation | |
| Oct 13, 2024 | Dennis | ½–½ | Poldermans | Round 1: Dennis, Nigel W - Poldermans, Daan | French Defense: Winawer Variation, Portisch-Hook Variation | |
| Aug 4, 2024 | Guilfoyle | ½–½ | Dennis | Round 7: Guilfoyle, John M - Dennis, Nigel W | King's Indian Defense: Petrosian Variation, Normal Defense | |
| Aug 3, 2024 | Dennis | 1–0 | Sheppard | Round 6: Dennis, Nigel W - Sheppard, Derek Alan | French Defense: Classical Variation, Burn Variation, Morozevich Line | |
| Aug 2, 2024 | Habershon | 1–0 | Dennis | Round 5: Habershon, Paul F - Dennis, Nigel W | Sicilian Defense | |
| Aug 1, 2024 | Dennis | 1–0 | Collins | Round 4: Dennis, Nigel W - Collins, Nigel | Sicilian Defense: Najdorf Variation, Opocensky Variation, Traditional Line | |
| Jul 30, 2024 | Dennis | 0–1 | Shephard | Round 2: Dennis, Nigel W - Shephard, Chris C W | Modern Defense: Averbakh System | |
| Aug 21, 2022 | Bellers | ½–½ | Dennis | Chessable British Chess Championships: Seniors 65+ | English Opening: Anglo-Indian Defense | |
| Aug 19, 2022 | Bray | ½–½ | Dennis | Chessable British Chess Championships: Seniors 65+ | King's Indian Defense: Orthodox Variation, Modern System | |
| Aug 18, 2022 | Dennis | ½–½ | Mildenhall | Chessable British Chess Championships: Seniors 65+ | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Aug 17, 2022 | Jackson | 1–0 | Dennis | Chessable British Chess Championships: Seniors 65+ | Sicilian Defense: Grand Prix Attack | |
| Aug 16, 2022 | Milnes | 0–1 | Dennis | Chessable British Chess Championships: Seniors 65+ | Bird Opening | |
| Aug 15, 2022 | Dennis | 1–0 | Smith | Chessable British Chess Championships: Seniors 65+ | Ruy Lopez: Open, St. Petersburg Variation | |
| — | Dennis | ½–½ | Stimpson | Chessable British Chess Championships: Seniors 65+ | Scandinavian Defense: Portuguese Gambit, Wuss Variation | |
| — | Dennis | 0–1 | Orton | Round 2: Dennis, Nigel W - Orton, Stephen L A | Sicilian Defense: Scheveningen Variation, Modern Variation | |
| — | Dennis | 0–1 | Binks | Round 4: Dennis, Nigel W - Binks, Michael | Sicilian Defense: Dragon Variation, Classical Variation | |
| — | Dennis | 1–0 | Lawrence | Round 6: Dennis, Nigel W - Lawrence, Roy | King's Indian Defense: Normal Variation, Rare Defenses | |
| — | Page | 1–0 | Dennis | Round 1: Page, Mark E - Dennis, Nigel W | Sicilian Defense: Chekhover Variation | |
| — | Barnes | 0–1 | Dennis | Round 3: Barnes, David - Dennis, Nigel W | Sicilian Defense: Smith-Morra Gambit Declined, Scandinavian Formation | |
| — | Walkowiak | 1–0 | Dennis | Round 5: Walkowiak, Adam - Dennis, Nigel W | King's Indian Defense: Averbakh Variation, Geller Defense | |
| — | Robinson | ½–½ | Dennis | Round 7: Robinson, David - Dennis, Nigel W | Sicilian Defense | |
