| 26 jun 2026 | Pressler, Tobias 2182 | Zeihen, Matthieu 2067 | 1-0 | C45 Apertura Escocesa | FIDE World Youth Chess Championships 2026 | O18 | 44 | Ver |
| 22 jun 2026 | Bazilius, Augustinas 2240 | Zeihen, Matthieu 2067 | 1-0 | A07 King's Indian Attack, with e6 | FIDE World Youth Chess Championships 2026 | O18 | 68 | Ver |
| 19 jun 2026 | Domin, Yan 2330 | Zeihen, Matthieu 2067 | 1-0 | C88 Apertura Española (Ruy López): Closed, Anti-Marshall | FIDE World Youth Chess Championships 2026 | O18 | 62 | Ver |
| 18 jun 2026 | Liu, Jason 2252 | Zeihen, Matthieu 2067 | 1-0 | C55 Apertura Italiana: Two Knights Defense, Modern Bishop's Opening | FIDE World Youth Chess Championships 2026 | O18 | 60 | Ver |
| 17 jun 2026 | Zeihen, Matthieu 2067 | Sundac, Ivano 2289 | ½-½ | A15 Apertura Inglesa: Anglo-Indian Defense, Old Indian Formation | FIDE World Youth Chess Championships 2026 | O18 | 66 | Ver |
| 15 jun 2026 | Zeihen, Matthieu 2067 | Sava, Robert-Gabriel 2329 | 0-1 | A15 Apertura Inglesa: Anglo-Indian Defense, Queen's Indian Formation | FIDE World Youth Chess Championships 2026 | O18 | 53 | Ver |