| Apr 4, 2026 | Sievers | 1–0 | Willems | Runde 9: Sievers, Andy - Willems, Lasse | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Apr 3, 2026 | Willems | ½–½ | Henkel | Runde 8: Willems, Lasse - Henkel, Ralf | Benoni Defense: Benoni-Indian Defense, Kingside Move Order | |
| Apr 3, 2026 | Lebershausen | 1–0 | Willems | Runde 7: Lebershausen, Max - Willems, Lasse | King's Gambit Accepted: Abbazia Defense | |
| Apr 2, 2026 | Willems | 0–1 | Slany | Runde 6: Willems, Lasse - Slany, Ralph | Torre Attack: Classical Defense, Nimzowitsch Variation | |
| Apr 2, 2026 | Feith | 0–1 | Willems | Runde 5: Feith, Bernhard, Dr. - Willems, Lasse | English Opening: Anglo-Indian Defense, Queen's Knight Variation | |
| Mar 29, 2026 | Willems | 0–1 | Hirschinger | Runde 4: Willems, Lasse - Hirschinger, Thomas | Pseudo Queen's Indian Defense | |
| Mar 27, 2026 | Willems | 1–0 | Wilk | Runde 3: Willems, Lasse - Wilk, Jan | Torre Attack: Classical Defense | |
| Mar 27, 2026 | Baier | ½–½ | Willems | Runde 2: Baier, Philip - Willems, Lasse | Trompowsky Attack | |
| Mar 27, 2026 | Willems | 1–0 | Leiser | Runde 1: Willems, Lasse - Leiser, Joachim | Queen's Pawn Game: Modern Defense | |
| Apr 19, 2025 | Willems | ½–½ | Dahl | 92. Pfälzischer Schachkongress | Slav Defense | |
| Apr 18, 2025 | Willems | 1–0 | Glastra | 92. Pfälzischer Schachkongress | Benoni Defense: Old Benoni | |
| Apr 18, 2025 | Enkrodt | 0–1 | Willems | 92. Pfälzischer Schachkongress | Benko Gambit Accepted: Pawn Return Variation | |
| Apr 13, 2025 | Willems | ½–½ | Guthmann | 92. Pfälzischer Schachkongress | Trompowsky Attack | |
| Apr 13, 2025 | Peetz | ½–½ | Willems | 92. Pfälzischer Schachkongress | Ruy Lopez: Marshall Attack | |
| Apr 12, 2025 | Atento | 0–1 | Willems | 92. Pfälzischer Schachkongress | Benko Gambit Accepted: Pawn Return Variation | |
| Apr 11, 2025 | Shkliar | 0–1 | Willems | 92. Pfälzischer Schachkongress | Benko Gambit | |
