Lenka Nemeckova defeated Catalina Castano 6-4 4-6 6-1 in the Marseille 50K round of 16 on clay. The upset overturned the form book — Catalina Castano came in leading the head-to-head 2–0. Lenka Nemeckova claimed a first win over Catalina Castano in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-08-01 | Martina Franca 50K | R32 | clay | Catalina Castano | 6-3 6-3 |
| 2004-06-28 | Orbetello 75K | QF | clay | Catalina Castano | 6-4 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.