Denisa Sobotkova defeated Martine Vosseberg 6-3 6-2 in the Lenzerheide 10K round of 32 on clay. The upset overturned the form book — Martine Vosseberg came in leading the head-to-head 1–0, but Denisa Sobotkova had been the form player, winning 3 of their last 7 on clay. Denisa Sobotkova claimed a first win over Martine Vosseberg in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-06-10 | Bossonnens 10K | R16 | clay | Martine Vosseberg | 6-1 7-6 |