Sandra Mantler defeated Katya Zenklusen 6-3 6-1 in the Lenzerheide 10K round of 32 on clay. The result followed the form book — Sandra Mantler came in leading the head-to-head 1–0. Sandra Mantler extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-05-19 | Rhodes 10K | R16 | hard | Sandra Mantler | 6-3 6-1 |