Maria Joao Koehler defeated Erika Zanchetta 6-1 6-0 in the Brescia 25K round of 32 on clay. The upset overturned the form book — Erika Zanchetta came in leading the head-to-head 1–0. Maria Joao Koehler claimed a first win over Erika Zanchetta in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-06-06 | Campobasso 25K | R32 | clay | Erika Zanchetta | 6-4 0-6 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.