| 23 ago 2026 | Muendoerfer, Sebastian 2037 | Enekwizu, Divine 2066 | ½-½ | A50 Slav Indian | 20. Lessing-Open 2026 | A | 13 | Ver |
| 8 ago 2026 | Muendoerfer, Sebastian 2037 | Hahn, Markus 2254 | 0-1 | A90 Defensa Holandesa: Stonewall Variation, Modern Variation | 5. Kurt Pape-Open | A-Open | 46 | Ver |
| 8 ago 2026 | Holtwessels, Jan 2130 | Muendoerfer, Sebastian 2037 | ½-½ | C41 Defensa Philidor: Lion Variation | 5. Kurt Pape-Open | A-Open | 29 | Ver |
| 7 ago 2026 | Muendoerfer, Sebastian 2037 | Engel, Robert 2182 | ½-½ | D38 Gambito de Dama rehusado: Ragozin Defense | 5. Kurt Pape-Open | A-Open | 15 | Ver |
| 27 mar 2026 | Bangert, Jonas 2068 | Muendoerfer, Sebastian 2065 | 1-0 | D20 Gambito de Dama aceptado: Central Variation, Greco Variation | Landesjugendeinzelmeisterschaft in Niedersachsen U16 | 57 | Ver |
| 27 mar 2026 | Holtwessels, Jan 2052 | Muendoerfer, Sebastian 2065 | ½-½ | B12 Defensa Caro-Kann: Advance Variation, Van der Wiel Attack | Landesjugendeinzelmeisterschaft in Niedersachsen U16 | 24 | Ver |