Samia Medjahdi defeated Petra Cetkovska 7-6 4-6 6-3 in the Lenzerheide 10K round of 32 on clay. The upset overturned the form book — Petra Cetkovska came in leading the head-to-head 1–0. Samia Medjahdi claimed a first win over Petra Cetkovska in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-05-01 | Antalya-Manavgat 25K | QF | clay | Petra Cetkovska | 6-4 5-7 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.