| 7 ago 2026 | Arkell, Keith C 2390 | Varley, Peter 2147 | 1-0 | D02 Apertura de Peón de Dama: Symmetrical Variation | 2026 British Chess Championships: Over 65 | 41 | Ver |
| 17 jul 2026 | Arkell, Keith C 2390 | Dougherty, Michael 2135 | ½-½ | A15 Apertura Inglesa: Anglo-Indian Defense, King's Indian Formation | 2026 British Chess Championships: Over 65 | 28 | Ver |
| 17 jul 2026 | Cooper, John G 2194 | Arkell, Keith C 2390 | 0-1 | B14 Defensa Caro-Kann: Panov Attack, Fianchetto Defense | 2026 British Chess Championships: Over 65 | 41 | Ver |
| 10 jun 2026 | Salvetti, Manlio Alec 2123 | Arkell, Keith C 2402 | 0-1 | A15 Apertura Inglesa: Anglo-Indian Defense, King's Knight Variation | European Senior Chess Championship 2026 | 65+ | 65 | Ver |
| 9 jun 2026 | Arkell, Keith C 2402 | Stoinev, Metodi 2149 | ½-½ | D02 Apertura de Peón de Dama: Zukertort Variation | European Senior Chess Championship 2026 | 65+ | 68 | Ver |
| 8 jun 2026 | Arkell, Keith C 2402 | Chapman, Terry P D 2214 | ½-½ | A05 Apertura Zukertort | European Senior Chess Championship 2026 | 65+ | 34 | Ver |
| 7 jun 2026 | Sturua, Zurab 2484 | Arkell, Keith C 2402 | ½-½ | D06 Gambito de Dama rehusado: Austrian Defense, Gusev Countergambit | European Senior Chess Championship 2026 | 65+ | 18 | Ver |
| 6 jun 2026 | Mailfert, Jean-Pierre 2081 | Arkell, Keith C 2402 | 0-1 | A01 Ataque Nimzo-Larsen: Polish Variation | European Senior Chess Championship 2026 | 65+ | 39 | Ver |
| 5 jun 2026 | Arkell, Keith C 2402 | Erismann, Peter 2029 | 1-0 | A37 Apertura Inglesa: Symmetrical Variation, Botvinnik System Reversed, with Nf3 | European Senior Chess Championship 2026 | 65+ | 42 | Ver |
| 4 jun 2026 | Van Hoolandt, Patrick 2013 | Arkell, Keith C 2402 | ½-½ | A40 Kangaroo Defense | European Senior Chess Championship 2026 | 65+ | 26 | Ver |
| 3 jun 2026 | Arkell, Keith C 2402 | Van Herck, Marcel 2024 | ½-½ | A15 Apertura Inglesa: Anglo-Indian Defense, King's Knight Variation | European Senior Chess Championship 2026 | 65+ | 58 | Ver |
| 8 mar 2026 | Arkell, Keith C 2385 | Majeed, Haroon 2135 | 1-0 | D02 Apertura de Peón de Dama: Symmetrical Variation | Wells Chess Congress 2026 | 57 | Ver |
| 7 mar 2026 | Malinovskii, Ilia 2085 | Arkell, Keith C 2385 | ½-½ | B01 Defensa Escandinava: Valencian Variation | Wells Chess Congress 2026 | 97 | Ver |
| 6 mar 2026 | Arkell, Keith C 2385 | Helbig, Paul D 2100 | 1-0 | A46 Defensa India: Knights Variation | Wells Chess Congress 2026 | 29 | Ver |
| 2 mar 2026 | Arkell, Keith C 2385 | Turner, Matthew J 2457 | ½-½ | D13 Defensa Eslava: Exchange Variation | Wells Chess Congress 2026 | 9 | Ver |
| 27 feb 2026 | Arkell, Keith C 2367 | Gourlay, Iain 2289 | ½-½ | A36 Apertura Inglesa: Symmetrical Variation, Ultra-Symmetrical Variation | Jersey International Open 2026 | 50 | Ver |
| 26 feb 2026 | Houska, Jovanka 2314 | Arkell, Keith C 2367 | ½-½ | A46 Ataque Torre: Classical Defense | Jersey International Open 2026 | 8 | Ver |
| 24 feb 2026 | Toma, Katarzyna 2201 | Arkell, Keith C 2367 | 0-1 | B17 Defensa Caro-Kann: Karpov Variation | Jersey International Open 2026 | 17 | Ver |
| 23 feb 2026 | Golubka, Petro 2345 | Arkell, Keith C 2367 | ½-½ | D94 Defensa Grünfeld: Smyslov Defense | Jersey International Open 2026 | 15 | Ver |
| 23 feb 2026 | Arkell, Keith C 2367 | Wang, Hao(ZJ) 2418 | ½-½ | A61 Defensa Benoni: Knight's Tour Variation | Jersey International Open 2026 | 24 | Ver |