Stephanie Vogt defeated Sandra Martinovic 3-6 7-6 6-3 in the Lenzerheide 25K round of 32 on clay. The upset overturned the form book — Sandra Martinovic came in leading the head-to-head 1–0, but Stephanie Vogt had been the form player, winning 6 of their last 9 on clay. Stephanie Vogt claimed a first win over Sandra Martinovic in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-06-12 | Lenzerheide 10K | SF | clay | Sandra Martinovic | 6-4 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.