Lydia Steinbach defeated Alicia Ortuno 6-1 4-6 6-0 in the Oporto 25K round of 32 on clay. The upset overturned the form book — Alicia Ortuno came in leading the head-to-head 1–0. Lydia Steinbach claimed a first win over Alicia Ortuno in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-06-29 | Vaihingen 25K | R16 | clay | Alicia Ortuno | 6-1 7-6 |