| 24 jul 2026 | Mueller, Michael 2065 | Syre, Christian 2147 | 0-1 | A48 Sistema Londres | German Chess Championship 2026 | Seniors 65+ | 57 | Ver |
| 23 jul 2026 | Koehler, Gerhard, Dr. 2179 | Mueller, Michael 2065 | 0-1 | A13 Apertura Inglesa: Agincourt Defense, Bogoljubow Defense | German Chess Championship 2026 | Seniors 65+ | 51 | Ver |
| 22 jul 2026 | Mueller, Michael 2065 | Sandner, Gunter 2236 | ½-½ | A46 Defensa India: London System | German Chess Championship 2026 | Seniors 65+ | 19 | Ver |
| 4 jul 2026 | Mueller, Michael 2065 | Schaefer, Martin, Dr. 2009 | 0-1 | A80 Defensa Holandesa | 11. Open Baden-Württembergische Senior Championchip | 80 | Ver |
| 29 jun 2026 | Kapfer, Thomas 2169 | Mueller, Michael 2065 | 1-0 | C00 Defensa Francesa: King's Indian Attack | 11. Open Baden-Württembergische Senior Championchip | 63 | Ver |