| 12 jul 2026 | Brown, Thomas 2062 | Liu,Tianyi (Jack) 2120 | ½-½ | D02 Queen's Pawn Game: London System | South Wales International 2026 | 44 | Ver |
| 10 jul 2026 | Wells, Peter K 2318 | Brown, Thomas 2062 | 1-0 | B52 Sicilian Defense: Moscow Variation, Main Line | South Wales International 2026 | 32 | Ver |
| 4 abr 2026 | Brown, Thomas 2067 | Cave, Iwan 2122 | ½-½ | D02 Queen's Pawn Game: London System | Welsh Championships 2026 | Closed | 26 | Ver |
| 4 abr 2026 | Toczek, Grzegorz 2176 | Brown, Thomas 2067 | 1-0 | B50 Sicilian Defense: Delayed Alapin Variation, with d6 | Welsh Championships 2026 | Closed | 37 | Ver |
| 3 abr 2026 | Brown, Thomas 2067 | Blackburn, Jonathan L B 2258 | 1-0 | E20 Nimzo-Indian Defense: Kmoch Variation | Welsh Championships 2026 | Closed | 72 | Ver |
| 1 ene 2026 | Martin, Nils 2228 | Brown, Thomas 2082 | 1-0 | B15 Caro-Kann Defense: Tartakower Variation | Hastings International Chess Congress 2025: Masters | 34 | Ver |
| 29 dic 2025 | Ashton, Adam G 2247 | Brown, Thomas 2082 | 1-0 | B27 Sicilian Defense: Hyperaccelerated Dragon | Hastings International Chess Congress 2025: Masters | 43 | Ver |
| 28 dic 2025 | Brown, Thomas 2082 | Skytte, Rasmus 2354 | ½-½ | A31 English Opening: Symmetrical Variation, Anti-Benoni Variation | Hastings International Chess Congress 2025: Masters | 39 | Ver |