25 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Willems, Lasse | Ogawa, Motoki | 1-0 | D85 | DEM U12 2026 | 2026-05-30 |
| Willems, Lasse | Stojanoski, Stefan | 1/2-1/2 | D35 | DEM U12 2026 | 2026-05-28 |
| Willems, Lasse | Aguike, Toshiya | 0-1 | E71 | DEM U12 2026 | 2026-05-27 |
| Willems, Lasse | Bentele, Otto | 1-0 | D55 | DEM U12 2026 | 2026-05-24 |
| Willems, Lasse | Mueller, Konstantin | 0-1 | D85 | DEM U12 2026 | 2026-05-24 |
| Willems, Lasse | Henkel, Ralf | 1/2-1/2 | A43 | Runde 8: Willems, Lasse - Henkel, Ralf | 2026-04-03 |
| Willems, Lasse | Slany, Ralph | 0-1 | A46 | Runde 6: Willems, Lasse - Slany, Ralph | 2026-04-02 |
| Willems, Lasse | Hirschinger, Thomas | 0-1 | A47 | Runde 4: Willems, Lasse - Hirschinger, Thomas | 2026-03-29 |
| Willems, Lasse | Leiser, Joachim | 1-0 | A40 | Runde 1: Willems, Lasse - Leiser, Joachim | 2026-03-27 |
| Willems, Lasse | Wilk, Jan | 1-0 | A46 | Runde 3: Willems, Lasse - Wilk, Jan | 2026-03-27 |
| Willems, Lasse | Dahl, Frank | 1/2-1/2 | D10 | 92. Pfälzischer Schachkongress | 2025-04-19 |
| Willems, Lasse | Glastra, Nickjan | 1-0 | A43 | 92. Pfälzischer Schachkongress | 2025-04-18 |
| Willems, Lasse | Guthmann, Andreas | 1/2-1/2 | A45 | 92. Pfälzischer Schachkongress | 2025-04-13 |