Patty Schnyder defeated Sylvia Plischke 6-2 6-2 in the Maria Lankowitz quarter-final on clay. The upset overturned the form book — Sylvia Plischke came in leading the head-to-head 1–0. Patty Schnyder claimed a first win over Sylvia Plischke in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-01-04 | Hope Island | R16 | hard | Sylvia Plischke | 6-7 6-4 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.