| Feb 8, 2026 | Fava | ½–½ | Clarke | Round 6: Fava, Lorenzo - Clarke, Brandon G I | Benko Gambit Accepted: Fully Accepted Variation | |
| Feb 7, 2026 | Clarke | 1–0 | Macak | Round 5: Clarke, Brandon G I - Macak, Stefan | Bird Opening | |
| Jul 20, 2025 | Clarke | 1–0 | Murawski | ECF English Open Championship 2025 | King's Indian Attack: Sicilian Variation | |
| Jul 20, 2025 | Salmons | 0–1 | Clarke | ECF English Open Championship 2025 | Dutch Defense: Classical Variation | |
| Jul 19, 2025 | Clarke | 0–1 | Shearsby | ECF English Open Championship 2025 | King's Indian Attack | |
| Jul 19, 2025 | Roberson | ½–½ | Clarke | ECF English Open Championship 2025 | Benko Gambit Accepted: Fully Accepted Variation | |
| Jul 18, 2025 | Clarke | 1–0 | Cont | ECF English Open Championship 2025 | Italian Game: Scotch Gambit, Walbrodt-Baird Gambit | |
| Jul 18, 2025 | Khoury | ½–½ | Clarke | ECF English Open Championship 2025 | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Jul 18, 2025 | Clarke | 1–0 | Okhai | ECF English Open Championship 2025 | Scotch Game: Classical Variation | |
| May 31, 2025 | Siva Mahadevan | 0–1 | Clarke | Round 9: Siva Mahadevan - Clarke, Brandon G I | Sicilian Defense: Dragon Variation, Yugoslav Attack, Early Deviations | |
| May 30, 2025 | Clarke | 1–0 | Camacho Collados | Round 8: Clarke, Brandon G I - Camacho Collados, Marcos | Sicilian Defense: Closed | |
| May 30, 2025 | Badacsonyi | 0–1 | Clarke | Round 7: Badacsonyi, Stanley - Clarke, Brandon G I | King's Indian Defense: Semi-Averbakh System | |
| May 29, 2025 | Clarke | 1–0 | Badacsonyi | Round 6: Clarke, Brandon G I - Badacsonyi, Frankie | French Defense: Advance Variation, Paulsen Attack | |
| May 28, 2025 | Yu | 0–1 | Clarke | Round 5: Yu, Rock - Clarke, Brandon G I | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| May 28, 2025 | Clarke | 0–1 | Fava | Round 4: Clarke, Brandon G I - Fava, Lorenzo | Scotch Game: Scotch Gambit, Advance Variation | |
| May 27, 2025 | York-Weaving | ½–½ | Clarke | Round 3: York-Weaving, Richard - Clarke, Brandon G I | Sicilian Defense: Nimzowitsch Variation, Main Line | |
| May 26, 2025 | Clarke | ½–½ | Li | Round 2: Clarke, Brandon G I - Li, Wenxiang | Caro-Kann Defense: Advance Variation, Tal Variation | |
| May 26, 2025 | Pozzari | 0–1 | Clarke | Round 1: Pozzari, Simone - Clarke, Brandon G I | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Jul 30, 2024 | Clarke | 1–0 | Redzisz | XLVIII Open Internacional Vila de Sitges | Petrov's Defense: Nimzowitsch Attack | |
| Jul 29, 2024 | Vitier Vazquez | 0–1 | Clarke | XLVIII Open Internacional Vila de Sitges | Dutch Defense: Leningrad Variation, Warsaw Variation | |
| Jul 28, 2024 | Navalgund | 0–1 | Clarke | XLVIII Open Internacional Vila de Sitges | Benko Gambit | |
| Jul 26, 2024 | Clarke | ½–½ | Akhvlediani | XLVIII Open Internacional Vila de Sitges | King's Pawn Game | |
| Jul 25, 2024 | Bakshi | 0–1 | Clarke | XLVIII Open Internacional Vila de Sitges | Dutch Defense: Leningrad Variation, Warsaw Variation | |
| Jul 24, 2024 | Clarke | 1–0 | Noria Silvestre | XLVIII Open Internacional Vila de Sitges | Lion Defense: Anti-Philidor, Lion's Cave | |
| Jul 23, 2024 | Shamatava | ½–½ | Clarke | XLVIII Open Internacional Vila de Sitges | King's Indian Defense: Fianchetto Variation, Classical Variation | |
| Jul 22, 2024 | Clarke | 1–0 | Vaibhav Jayant Raut | XLVIII Open Internacional Vila de Sitges | Sicilian Defense: Closed | |
| May 6, 2024 | Nasuta | ½–½ | Clarke | Round 11: Nasuta, Grzegorz - Clarke, Brandon G I | Sicilian Defense: Najdorf Variation | |
| May 5, 2024 | Clarke | ½–½ | Bazakutsa | Round 10: Clarke, Brandon G I - Bazakutsa, Svyatoslav | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| May 4, 2024 | Waldhausen Gordon | ½–½ | Clarke | Round 9: Waldhausen Gordon, Frederick - Clarke, Brandon G I | Grünfeld Defense: Russian Variation, Byrne Variation | |
| Jul 29, 2023 | Lewis | * | Clarke | British Chess Championships 2023: Major Open | King's Indian Defense: Fianchetto Variation, Yugoslav Variation, Exchange Line | |
| Jul 28, 2023 | Clarke | 1–0 | Raju | British Chess Championships 2023: Major Open | Alekhine Defense: Four Pawns Attack, Main Line | |
| Jul 27, 2023 | Sedykh | ½–½ | Clarke | British Chess Championships 2023: Major Open | King's Indian Defense: Orthodox Variation | |
| Jul 26, 2023 | Clarke | 1–0 | Gopakumar | British Chess Championships 2023: Major Open | Hungarian Opening | |
| Jul 25, 2023 | Mikalajunas | 0–1 | Clarke | British Chess Championships 2023: Major Open | Sicilian Defense: Alapin Variation | |
| Mar 12, 2023 | Clarke | 1–0 | Asadli | European Championship | ? | |
| Mar 4, 2023 | Clarke | 0–1 | Saric | European Championship | Sicilian Defense: Alapin Variation | |
| — | Clarke | 0–1 | Fava | Round 2: Clarke, Brandon G I - Fava, Lorenzo | Ruy Lopez: Morphy Defense | |
| — | Clarke | 0–1 | Shearsby | Round 4: Clarke, Brandon G I - Shearsby, Jude | French Defense: Advance Variation, Wade Variation | |
| — | Clarke | 1–0 | Adams | Round 5: Clarke, Brandon G I - Adams, Henry | Scotch Game: Mieses Variation | |
| — | Clarke | 1–0 | Kovalskyi | Round 7: Clarke, Brandon G I - Kovalskyi, Roman | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| — | Clarke | 1–0 | Manmay Chopra | Round 9: Clarke, Brandon G I - Manmay Chopra | French Defense: Advance Variation, Milner-Barry Gambit, Main Line | |
| — | Clarke | 1–0 | Pereslavtsev | Round 1: Clarke, Brandon G I - Pereslavtsev, Alexandr | Sicilian Defense: Closed | |
| — | Clarke | 1–0 | Safar | Round 3: Clarke, Brandon G I - Safar, Sandro | Sicilian Defense: Grand Prix Attack | |
| — | Clarke | ½–½ | Urkedal | Round 5: Clarke, Brandon G I - Urkedal, Frode Olav Olsen | Italian Game: Scotch Gambit, Anderssen Attack | |
| — | Clarke | 1–0 | Li | Round 8: Clarke, Brandon G I - Li, Wenxiang | Caro-Kann Defense: Advance Variation, Van der Wiel Attack | |
| — | Clarke | 0–1 | Campins Machado | Ronda 2: Clarke, Brandon G I - Campins Machado, Francesc | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| — | Clarke | 1–0 | Vardanyan | Ronda 7: Clarke, Brandon G I - Vardanyan, Aras | Sicilian Defense: Grand Prix Attack | |
| — | Clarke | ½–½ | Fava | Ronda 9: Clarke, Brandon G I - Fava, Lorenzo | Italian Game: Giuoco Pianissimo, Normal | |
| — | Murawski | 0–1 | Clarke | Round 1: Murawski, Jan - Clarke, Brandon G I | King's Indian Defense: Sämisch Variation, Normal Defense | |
| — | Sivanandan | 0–1 | Clarke | Round 3: Sivanandan, Bodhana - Clarke, Brandon G I | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Gufeld Gambit | |
| — | Vijayakumar | 1–0 | Clarke | Round 6: Vijayakumar, Rishi - Clarke, Brandon G I | King's Indian Defense: Semi-Averbakh System | |
| — | Yao | 1–0 | Clarke | Round 8: Yao, Lan - Clarke, Brandon G I | Sicilian Defense: Dragon Variation, Yugoslav Attack, Modern Line | |
| — | Badacsonyi | 0–1 | Clarke | Round 2: Badacsonyi, Frankie - Clarke, Brandon G I | King's Indian Defense: Orthodox Variation | |
| — | Vandenbussche | 0–1 | Clarke | Round 4: Vandenbussche, Thibaut - Clarke, Brandon G I | Sicilian Defense: Moscow Variation, Main Line | |
| — | Czopor | ½–½ | Clarke | Round 6: Czopor, Maciej - Clarke, Brandon G I | Sicilian Defense: Modern Variations | |
| — | Janik | 1–0 | Clarke | Round 7: Janik, Igor - Clarke, Brandon G I | King's Indian Defense: Fianchetto Variation, Uhlmann-Szabo System | |
| — | Kovchan | 0–1 | Clarke | Round 9: Kovchan, Alexander - Clarke, Brandon G I | Sicilian Defense: Dragon Variation, Fianchetto Variation | |
| — | Farkash | 0–1 | Clarke | Ronda 1: Farkash, Denys - Clarke, Brandon G I | French Defense: Tarrasch Variation, Guimard Defense, Main Line | |
| — | Ostergaard | 0–1 | Clarke | Ronda 6: Ostergaard, Jens - Clarke, Brandon G I | King's Indian Defense: Orthodox Variation, Aronin-Taimanov Defense | |
| — | Petriashvili | 1–0 | Clarke | Ronda 8: Petriashvili, Nikoloz - Clarke, Brandon G I | Modern Defense: Standard Defense | |
| — | Travesset Sagre | ½–½ | Clarke | Ronda 10: Travesset Sagre, Jan - Clarke, Brandon G I | King's Indian Defense: Fianchetto Variation, Classical Main Line | |