Martine Vosseberg defeated Denisa Sobotkova 6-1 7-6 in the Bossonnens 10K round of 16 on clay. The upset overturned the form book — Denisa Sobotkova came in leading the head-to-head 1–0. Martine Vosseberg claimed a first win over Denisa Sobotkova in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-06-08 | Lenzerheide 10K | R32 | clay | Denisa Sobotkova | 6-3 6-2 |