Olivia Thiemke defeated Cecilie Wiche 7-5 6-3 in the W25 Koge q16 on clay. The upset overturned the form book — Cecilie Wiche came in leading the head-to-head 1–0. Olivia Thiemke claimed a first win over Cecilie Wiche in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-05-05 | W15 Kalmar 1 | Q32 | clay | Cecilie Wiche | 7-5 6-3 |