Claus Piening defeated Daan Meijer 7-5 3-6 10-8 in the M15 Lambermont 1 q32 on clay. The result followed the form book — Claus Piening came in leading the head-to-head 1–0. Claus Piening extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-09-03 | M15 Haren 1 | Q32 | clay | Claus Piening | 6-2 6-1 |