18 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Niederberger, Lenny | Mesbah, Youssef | 1/2-1/2 | A08 | Round 9: Niederberger, Lenny - Mesbah, Youssef | 2026-07-24 |
| Niederberger, Lenny | Popescu, Vlad | 1/2-1/2 | A05 | Round 7: Niederberger, Lenny - Popescu, Vlad | 2026-07-23 |
| Niederberger, Lenny | Navarini, Vincent | 0-1 | A05 | Swiss Youth Championship 2026 U16 | 2026-05-24 |
| Niederberger, Lenny | Akinkhov, Mikhail | 0-1 | A08 | Swiss Youth Championship 2026 U16 | 2026-05-23 |
| Niederberger, Lenny | Jordan, Theodor | 0-1 | A05 | Swiss Youth Championship 2026 U16 | 2026-05-22 |
| Niederberger, Lenny | Germann, Elias | 1-0 | A05 | Biel Chess Festival 2025 WT 1 | 2025-07-24 |
| Niederberger, Lenny | Cloete, Willem Francois | 0-1 | A05 | Biel Chess Festival 2025 WT 1 | 2025-07-22 |