| 31 ago 2026 | Staechelin, Ruedi 2023 | Lederman, Leon 2153 | 0-1 | B52 Defensa Siciliana: Moscow Variation, Main Line | European Senior Team Championships 2026 | Senior 65+ | 25 | Ver |
| 29 ago 2026 | Lederman, Leon 2153 | Townsend, M Paul 2102 | ½-½ | C19 Defensa Francesa: Winawer Variation, Positional Variation | European Senior Team Championships 2026 | Senior 65+ | 42 | Ver |
| 28 ago 2026 | Mikhalchishin, Adrian 2415 | Lederman, Leon 2153 | 1-0 | D52 Gambito de Dama rehusado: Cambridge Springs Defense, Bogoljubow Variation | European Senior Team Championships 2026 | Senior 65+ | 32 | Ver |
| 9 jun 2026 | Lederman, Leon 2180 | Astengo, Corrado 2003 | 0-1 | B42 Defensa Siciliana: Kan Variation, Modern Variation | European Senior Chess Championship 2026 | 65+ | 36 | Ver |
| 7 jun 2026 | Lederman, Leon 2180 | Van Hoolandt, Patrick 2013 | 0-1 | C91 Apertura Española (Ruy López): Closed, Yates Variation | European Senior Chess Championship 2026 | 65+ | 53 | Ver |
| 6 jun 2026 | Legky, Nikolay A 2319 | Lederman, Leon 2180 | 1-0 | B20 Defensa Siciliana: Keres Variation | European Senior Chess Championship 2026 | 65+ | 47 | Ver |
| 5 jun 2026 | Lederman, Leon 2180 | Staechelin, Ruedi 2013 | 1-0 | C75 Apertura Española (Ruy López): Morphy Defense, Modern Steinitz Defense | European Senior Chess Championship 2026 | 65+ | 49 | Ver |